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Platform-specific devices.

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platform/msb430/dev/adc.c Normal file
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/*
* Copyright (c) 2007, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* ADC functions.
* \author
* Nicolas Tsiftes <nvt@sics.se>
*/
#include <io.h>
#include <signal.h>
#include "contiki-msb430.h"
void
adc_init(void) {
//Setup ADC12, ref., sampling time, REFON for DAC!!
ADC12CTL0 = SHT0_15 + SHT1_15 + MSC;
// Use sampling timer, repeat-sequence-of-channels
ADC12CTL1 = SHP + CONSEQ_3 + CSTARTADD_0;
ADC12MCTL0 = INCH_0 + SREF_0; // P60: AIN0
ADC12MCTL1 = INCH_0 + SREF_0; // P60: AIN0
ADC12MCTL2 = INCH_0 + SREF_0; // P60: AIN0
ADC12MCTL3 = INCH_1 + SREF_0; // P61: AIN1
ADC12MCTL4 = INCH_1 + SREF_0; // P61: AIN1
ADC12MCTL5 = INCH_1 + SREF_0; // P61: AIN1
ADC12MCTL6 = INCH_2 + SREF_0; // P62: AIN2
ADC12MCTL7 = INCH_2 + SREF_0; // P62: AIN2
ADC12MCTL8 = INCH_2 + SREF_0; // P62: AIN2
ADC12MCTL9 = INCH_2 + SREF_0; // P62: AIN2
ADC12MCTL10 = INCH_3 + SREF_0; // P63: AIN2
ADC12MCTL11 = INCH_4 + SREF_0; // P64: AIN3
ADC12MCTL12 = INCH_5 + SREF_0; // P65: AIN4
ADC12MCTL13 = INCH_10 + SREF_0 + EOS; // Temp diode
}
void
adc_on(void)
{
ADC12CTL0 |= ADC12ON;
clock_delay(600);
ADC12CTL0 |= ENC;
ADC12CTL0 |= ADC12SC;
}
void
adc_off(void)
{
ADC12CTL0 &= ~ENC;
clock_delay(600);
ADC12CTL0 &= ~ADC12ON;
}

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/*
* Copyright (c) 2007, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
#ifndef ADC_H
#define ADC_H
void adc_init(void);
void adc_on(void);
void adc_off(void);
#endif /* !ADC_H */

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#include <signal.h>
#define CC1020_MAIN 0x00
#define CC1020_INTERFACE 0x01
#define CC1020_RESET 0x02
#define CC1020_SEQUENCING 0x03
#define CC1020_FREQ_2A 0x04
#define CC1020_FREQ_1A 0x05
#define CC1020_FREQ_0A 0x06
#define CC1020_CLOCK_A 0x07
#define CC1020_FREQ_2B 0x08
#define CC1020_FREQ_1B 0x09
#define CC1020_FREQ_0B 0x0A
#define CC1020_CLOCK_B 0x0B
#define CC1020_VCO 0x0C
#define CC1020_MODEM 0x0D
#define CC1020_DEVIATION 0x0E
#define CC1020_AFC_CONTROL 0x0F
#define CC1020_FILTER 0x10
#define CC1020_VGA1 0x11
#define CC1020_VGA2 0x12
#define CC1020_VGA3 0x13
#define CC1020_VGA4 0x14
#define CC1020_LOCK 0x15
#define CC1020_FRONTEND 0x16
#define CC1020_ANALOG 0x17
#define CC1020_BUFF_SWING 0x18
#define CC1020_BUFF_CURRENT 0x19
#define CC1020_PLL_BW 0x1A
#define CC1020_CALIBRATE 0x1B
#define CC1020_PA_POWER 0x1C
#define CC1020_MATCH 0x1D
#define CC1020_PHASE_COMP 0x1E
#define CC1020_GAIN_COMP 0x1F
#define CC1020_POWERDOWN 0x20
#define CC1020_TEST1 0x21
#define CC1020_TEST2 0x22
#define CC1020_TEST3 0x23
#define CC1020_TEST4 0x24
#define CC1020_TEST5 0x25
#define CC1020_TEST6 0x26
#define CC1020_TEST7 0x27
#define CC1020_STATUS 0x40
#define CC1020_RESET_DONE 0x41
#define CC1020_RSS 0x42
#define CC1020_AFC 0x43
#define CC1020_GAUSS_FILTER 0x44
#define CC1020_STATUS1 0x45
#define CC1020_STATUS2 0x46
#define CC1020_STATUS3 0x47
#define CC1020_STATUS4 0x48
#define CC1020_STATUS5 0x49
#define CC1020_STATUS6 0x4A
#define CC1020_STATUS7 0x4B
// For CC1020_STATUS
#define LOCK_CONTINUOUS 0x10
#define CAL_COMPLETE 0x80
#define PA_POWER 0x0F // initial default for output power
#define LOCK_NOK 0x00
#define LOCK_OK 0x01
#define LOCK_RECAL_OK 0x02
#define CAL_TIMEOUT 0x7FFE
#define LOCK_TIMEOUT 0x7FFE
#define RESET_TIMEOUT 0x7FFE
#define TX_CURRENT 0x87
#define RX_CURRENT 0x86
// CC1020 driver configuration
#define CC1020_BUFFERSIZE 250
// PDI (Data in) is on P21
#define PDO (P2IN & 0x01)
// PSEL is on P30 and low active
#define PSEL_ON do { P3OUT &= ~0x01; } while(0)
#define PSEL_OFF do { P3OUT |= 0x01; } while(0)
#define PCLK_HIGH do { P2OUT |= 0x08; } while(0)
#define PCLK_LOW do { P2OUT &= ~0x08; } while(0)
// PDO (Data out) is on P22
#define PDI_HIGH do { P2OUT |= 0x02; } while(0)
#define PDI_LOW do { P2OUT &= ~0x02; } while(0)
// Enable power for LNA (P24, low-active)
#define LNA_POWER_ON() do { P2OUT &= ~0x10; } while(0)
#define LNA_POWER_OFF() do { P2OUT |= 0x10; } while(0)
#define CC_LOCK (P2IN & 0x04)
#define DISABLE_RX_IRQ() \
do { IE1 &= ~(URXIE0); } while(0)
#define ENABLE_RX_IRQ() \
do { IFG1 &= ~URXIFG0; IE1 |= URXIE0; } while(0)
#define ACK_TIMEOUT_115 4 // In RADIO_STROKE ticks
#define ACK_TIMEOUT_19 16
#define MHZ_869525 1
const u8_t cc1020_config_19200[41] = {
0x01, // 0x00, MAIN
0x0F, // 0x01, INTERFACE
0xFF, // 0x02, RESET
0x8F, // 0x03, SEQUENCING
//869.525 bei 50kHz
0x3A, // 0x04, FREQ_2A
0x32, // 0x05, FREQ_1A
0x97, // 0x06, FREQ_0A // 19200
0x38, // 0x07, CLOCK_A // 19200
0x3A, // 0x08, FREQ_2B
0x37, // 0x09, FREQ_1B
0xEB, // 0x0A, FREQ_0B // 19200
0x38, // 0x0B, CLOCK_B // 19200
0x44, // 0x0C, VCO 44
0x51, // 0x0D, MODEM Manchester
0x2B, // 0x0E, DEVIATION // FSK
0x4C, // 0x0F, AFC_CONTROL Ruetten 0xCC
0x25, // 0x10, FILTER Bandwith 100 kHz
0x61, // 0x11, VGA1
0x55, // 0x12, VGA2
0x2D, // 0x13, VGA3
0x37, // 0x14, VGA4 // 0x29, VGA4 ADJUSTED CS to 23!
0x40, // 0x15, LOCK is Carrier SENSE
0x76, // 0x16, FRONTEND
0x87, // 0x17, ANALOG, RX=86/TX=87
0x10, // 0x18, BUFF_SWING
0x25, // 0x19, BUFF_CURRENT
0xAE, // 0x1A, PLL_BW
0x34, // 0x1B, CALIBRATE
PA_POWER, // 0x1C, PA_POWER AN025 = 0xA0
0xF0, // 0x1D, MATCH
0x00, // 0x1E, PHASE_COMP
0x00, // 0x1F, GAIN_COMP
0x00, // 0x20, POWERDOWN
0x4d, // 0x4d, // 0x21,
0x10, // 0x10, // 0x22,
0x06, // 0x06, // 0x23,
0x00, // 0x00, // 0x24,
0x40, // 0x40, // 0x25,
0x00, // 0x00, // 0x26,
0x00, // 0x00, // 0x27,
// Not in real config of chipCon from here!!!
ACK_TIMEOUT_19
};
const u8_t cc1020_config_115200[41] = {
0x01, // 0x00, MAIN
0x0F, // 0x01, INTERFACE
0xFF, // 0x02, RESET
0x8F, // 0x03, SEQUENCING
// 869.525 bei 200kHz
0x3A, // 0x04, FREQ_2A
0x32, // 0x05, FREQ_1A
0x97, // 0x06, FREQ_0A // 19200
0x29, // 0x07, CLOCK_A // 19200
0x3A, // 0x08, FREQ_2B
0x37, // 0x09, FREQ_1B
0xEB, // 0x0A, FREQ_0B // 19200
0x29, // 0x0B, CLOCK_B // 19200
0x44, // 0x0C, VCO 44
0x51, // 0x0D, MODEM Manchester
0x58, // 0x0E, DEVIATION // FSK
0x4C, // 0x0F, AFC_CONTROL Ruetten 0xCC
0x80, // 0x10, FILTER Bandwith 500 kHz
0x61, // 0x11, VGA1
0x55, // 0x12, VGA2
0x30, // 0x13, VGA3
0x35, // 0x14, VGA4
0x20, // 0x15, LOCK is Carrier SENSE
0x76, // 0x16, FRONTEND
0x87, // 0x17, ANALOG, RX=86/TX=87
0x10, // 0x18, BUFF_SWING
0x25, // 0x19, BUFF_CURRENT
0xAE, // 0x1A, PLL_BW
0x34, // 0x1B, CALIBRATE
PA_POWER, // 0x1C, PA_POWER AN025 = 0xA0
0xF0, // 0x1D, MATCH
0x00, // 0x1E, PHASE_COMP
0x00, // 0x1F, GAIN_COMP
0x00, // 0x20, POWERDOWN
0x4d, // 0x21,
0x10, // 0x22,
0x06, // 0x23,
0x00, // 0x24,
0x40, // 0x25,
0x00, // 0x26,
0x00, // 0x27,
// Not in real config of chipCon from here!!!
ACK_TIMEOUT_115
};
/// cc1020 state
enum cc1020_state {
CC1020_OFF,
CC1020_RX,
CC1020_TX
};
/******************************************************************************
* @name Packet specification
* @{
*/
#define PREAMBLESIZE 6 // number of bytes in preamble
#define PREAMBLE 0xAA
#define SYNCWDSIZE 2 // number of bytes in syncword
const u8_t syncword[2] = {0xD3,0x91};
#define HDRSIZE 1 // number of bytes in header
#define TAILSIZE 2 // number of bytes in tail
#define TAIL 0xFA
__attribute__((packed))
struct cc1020_header {
u8_t length; // header: number of bytes in packet (incl. header)
};
///@}
/// cc1020 receiver state
enum cc1020_rxstate {
CC1020_RX_SEARCHING, // searching for preamble + sync word
CC1020_RX_RECEIVE, // receiving bytes
CC1020_RX_PROCESSING // processing data in buffer
};

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/*
Copyright 2006, Freie Universitaet Berlin. All rights reserved.
These sources were developed at the Freie Universität Berlin, Computer
Systems and Telematics group.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
This software is provided by FUB and the contributors on an "as is"
basis, without any representations or warranties of any kind, express
or implied including, but not limited to, representations or
warranties of non-infringement, merchantability or fitness for a
particular purpose. In no event shall FUB or contributors be liable
for any direct, indirect, incidental, special, exemplary, or
consequential damages (including, but not limited to, procurement of
substitute goods or services; loss of use, data, or profits; or
business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence
or otherwise) arising in any way out of the use of this software, even
if advised of the possibility of such damage.
This implementation was developed by the CST group at the FUB.
For documentation and questions please use the web site
http://scatterweb.mi.fu-berlin.de and the mailinglist
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
Berlin, 2006
*/
/**
* @file cc1020.c
* @author FUB ScatterWeb Developers, Michael Baar, Nicolas Tsiftes
*
* Taken from ScatterWeb² 1.1 and modified/reformatted for Contiki 2.0
**/
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include "contiki-msb430.h"
#include "cc1020-internal.h"
#include "cc1020.h"
#include "lib/random.h"
#include "dev/irq.h"
static int cc1020_calibrate(void);
static int cc1020_setupTX(int);
static int cc1020_setupRX(int);
static void cc1020_setupPD(void);
static void cc1020_wakeupTX(int);
static void cc1020_wakeupRX(int);
static u8_t cc1020_read_reg(u8_t addr);
static void cc1020_write_reg(u8_t addr, u8_t adata);
static void cc1020_load_config(const u8_t *);
static void cc1020_reset(void);
/// selected rx/tx/pd switching algorithm
static enum cc1020_power_mode cc1020_power_mode = CC1020_ALWAYS_ON;
// current mode of cc1020 chip
static enum cc1020_state cc1020_state = CC1020_OFF;
volatile u8_t cc1020_rxbuf[HDRSIZE + CC1020_BUFFERSIZE];
volatile u8_t cc1020_txbuf[PREAMBLESIZE + HDRSIZE + CC1020_BUFFERSIZE +
TAILSIZE];
static enum cc1020_rxstate cc1020_rxstate = CC1020_RX_SEARCHING;
/// number of bytes in receive buffer
static unsigned short cc1020_rxlen = 0;
/// received signal strength indicator reading for last received packet
static unsigned char rssi;
/// callback when a packet has been received
static void (*receiver_callback) (void);
static unsigned char cc1020_pa_power = PA_POWER;
static unsigned short cc1020_txlen = 0;
const struct radio_driver cc1020_driver =
{
cc1020_send,
cc1020_read,
cc1020_set_receiver,
cc1020_on,
cc1020_off
};
process_event_t cc1020_event;
PROCESS(cc1020_sender_process, "CC1020 sender");
void
cc1020_init(const u8_t * config)
{
cc1020_event = process_alloc_event();
cc1020_setupPD();
cc1020_reset();
cc1020_load_config(config);
// init tx buffer with preamble + syncword
memset(cc1020_txbuf, PREAMBLE, PREAMBLESIZE);
memcpy((char *) cc1020_txbuf + PREAMBLESIZE, &syncword, SYNCWDSIZE);
// calibrate receiver
cc1020_wakeupRX(RX_CURRENT);
if (!cc1020_calibrate())
printf("rx calibration failed\n");
// calibrate transmitter
cc1020_wakeupTX(TX_CURRENT);
if (!cc1020_calibrate())
printf("tx calibration failed\n");
// power down
cc1020_setupPD();
process_start(&cc1020_sender_process, NULL);
}
int
cc1020_on(void)
{
if (cc1020_power_mode == CC1020_ALWAYS_ON) {
// Switch to receive mode
cc1020_set_rx();
} else {
cc1020_off();
}
return true;
}
void
cc1020_off(void)
{
if (cc1020_rxstate == CC1020_OFF)
return;
LNA_POWER_OFF(); // power down lna
_DINT();
cc1020_rxstate = CC1020_OFF;
DISABLE_RX_IRQ();
cc1020_state = CC1020_OFF;
_EINT();
cc1020_setupPD(); // power down radio
}
void
cc1020_set_rx(void)
{
// configure controller
_DINT();
// Reset SEL for P3[1-3] (CC DIO, DIO, DCLK) and P3[4-5] (Camera Rx+Tx)
P3SEL &= ~0x3E;
IFG1 &= ~(UTXIE0 | URXIE0); // Clear interrupt flags
ME1 &= ~(UTXE0 | URXE0); // Disable Uart0 Tx + Rx
UCTL0 = SWRST; // U0 into reset state.
UCTL0 |= CHAR | SYNC; // 8-bit character, SPI, Slave mode
// CKPH works also, but not CKPH+CKPL or none of them!!
UTCTL0 = CKPL + STC;
URCTL0 = 0x00;
UBR00 = 0x00; // No baudrate divider
UBR10 = 0x00; // settings for a spi
UMCTL0 = 0x00; // slave.
ME1 |= USPIE0; // Enable USART0 TXD/RXD, disabling does not yield any powersavings
P3SEL |= 0x0A; // Select rx line and clk
UCTL0 &= ~SWRST; // Clear reset bit
_EINT();
// configure driver
cc1020_rxlen = 0; // receive buffer position to start
cc1020_rxstate = CC1020_RX_SEARCHING; // rx state machine to searching mode
cc1020_state = CC1020_RX; // driver state to receive mode
// configure radio
cc1020_wakeupRX(RX_CURRENT);
cc1020_setupRX(RX_CURRENT);
LNA_POWER_ON(); // enable amplifier
// activate
IE1 |= URXIE0; // enable interrupt
}
void
cc1020_set_tx(void)
{
// configure radio rx
LNA_POWER_OFF(); // power down LNA
_DINT();
DISABLE_RX_IRQ();
P3SEL &= ~0x02; // Ensure Rx line is off
_EINT();
// configure radio tx
cc1020_wakeupTX(TX_CURRENT);
cc1020_setupTX(TX_CURRENT);
P3SEL |= 0x0C; // select Tx line and clk
U0CTL |= SWRST; // UART to reset mode
IFG1 &= ~UTXIFG0; // Reset IFG.
// configure driver
cc1020_state = CC1020_TX;
}
void
cc1020_set_receiver(void (*recv) (void))
{
receiver_callback = recv;
}
__inline void
cc1020_set_power_mode(enum cc1020_power_mode mode)
{
cc1020_power_mode = mode;
}
__inline void
cc1020_set_power(u8_t pa_power)
{
cc1020_pa_power = pa_power;
}
unsigned int
cc1020_read(u8_t * buf, unsigned int bufsize)
{
unsigned short len;
if (cc1020_rxlen > HDRSIZE) {
len = cc1020_rxlen - HDRSIZE;
if (len > bufsize) {
// XXX Must handle this condition.
printf
("read buffer smaller than packet payload. payload length=%u, buffer size=%u\n",
len, bufsize);
} else {
memcpy(buf, (char *) cc1020_rxbuf + HDRSIZE, len);
return len;
}
}
return 0;
}
__inline u8_t
cc1020_get_rssi()
{
return rssi;
}
unsigned
cc1020_send(u8_t * buf, unsigned int len)
{
if (len > CC1020_BUFFERSIZE) // too large
return 0;
if (cc1020_txlen > 0) // buffer in use
return 0;
// prefix
// (preamble+syncword are already in buffer)
cc1020_txlen = PREAMBLESIZE + SYNCWDSIZE;
// header
cc1020_txbuf[cc1020_txlen++] = HDRSIZE + len;
// data to send
memcpy((char *) cc1020_txbuf + cc1020_txlen, buf, len);
cc1020_txlen += len;
// suffix
cc1020_txbuf[cc1020_txlen++] = 0xFA;
cc1020_txbuf[cc1020_txlen++] = 0xFA;
// poll sender
process_poll(&cc1020_sender_process);
return len;
}
interrupt(UART0RX_VECTOR) cc1020_rxhandler(void)
{
static signed char syncbs;
static union {
struct {
u8_t b2;
u8_t b1;
u8_t b4;
u8_t b3;
};
struct {
UINT16 i1;
UINT16 i2;
};
} shiftbuf;
switch (cc1020_rxstate) {
case CC1020_RX_SEARCHING:
shiftbuf.b1 = shiftbuf.b2;
shiftbuf.b2 = shiftbuf.b3;
shiftbuf.b3 = shiftbuf.b4;
shiftbuf.b4 = RXBUF0;
if (shiftbuf.i1 == 0xAAD3 && shiftbuf.i2 == 0x9100) {
// 0 AA D3 91 00 | FF 00 |
syncbs = 0;
cc1020_rxbuf[cc1020_rxlen++] = shiftbuf.b4;
} else if (shiftbuf.i1 == 0x5569 && shiftbuf.i2 == 0xC880) {
// 1 55 69 C8 80 | 7F 80 |
syncbs = -1;
} else if (shiftbuf.i1 == 0xAAB4 && shiftbuf.i2 == 0xE440) {
// 2 AA B4 E4 40 | 3F C0 |
syncbs = -2;
} else if (shiftbuf.i1 == 0x555A && shiftbuf.i2 == 0x7220) {
// 3 55 5A 72 20 | 1F E0 |
syncbs = -3;
} else if (shiftbuf.i1 == 0xAAAD && shiftbuf.i2 == 0x3910) {
// 4 AA AD 39 10 | 0F F0 |
syncbs = -4;
} else if (shiftbuf.i1 == 0x5556 && shiftbuf.i2 == 0x9C88) {
// 5 55 56 9C 88 | 07 F8 |
syncbs = +3;
} else if (shiftbuf.i1 == 0xAAAB && shiftbuf.i2 == 0x4E44) {
// 6 AA AB 4E 44 | 03 FC |
syncbs = +2;
} else if (shiftbuf.i1 == 0x5555 && shiftbuf.i2 == 0xA722) {
// 7 55 55 A7 22 | 01 FE |
syncbs = +1;
} else {
return;
}
cc1020_rxstate = CC1020_RX_RECEIVE;
// Signal "Channel busy"
rssi = cc1020_read_reg(CC1020_RSS);
break;
case CC1020_RX_RECEIVE:
if (syncbs == 0) {
cc1020_rxbuf[cc1020_rxlen] = RXBUF0;
} else {
shiftbuf.b3 = shiftbuf.b4;
shiftbuf.b4 = RXBUF0;
if (syncbs < 0) {
shiftbuf.i1 = shiftbuf.i2 << -syncbs;
cc1020_rxbuf[cc1020_rxlen] = shiftbuf.b1;
} else {
shiftbuf.i1 = shiftbuf.i2 >> syncbs;
cc1020_rxbuf[cc1020_rxlen] = shiftbuf.b2;
}
}
cc1020_rxlen++;
if (cc1020_rxlen > HDRSIZE) {
if (cc1020_rxlen == ((struct cc1020_header *) cc1020_rxbuf)->length) {
// disable receiver
DISABLE_RX_IRQ();
cc1020_rxstate = CC1020_RX_PROCESSING;
// call receiver to copy from buffer
if (receiver_callback != NULL)
receiver_callback();
// reset receiver
cc1020_rxlen = 0;
cc1020_rxstate = CC1020_RX_SEARCHING;
ENABLE_RX_IRQ();
}
}
break;
default:
break;
}
}
PROCESS_THREAD(cc1020_sender_process, ev, data)
{
PROCESS_BEGIN();
while (1) {
// Wait for data in buffer.
PROCESS_WAIT_UNTIL(cc1020_txlen > 0);
// Radio could be in OFF or RX mode.
if (cc1020_state == CC1020_OFF)
cc1020_set_rx();
// Radio is in RX mode.
// Wait until the receiver is idle.
PROCESS_WAIT_UNTIL(cc1020_rxstate == CC1020_RX_SEARCHING);
// Wait for a short pseudo-random time before sending.
clock_delay(1 + (random_rand() & 0xf));
// Switch to transceive mode.
cc1020_set_tx();
// Initiate radio transfer.
// Configure DMA Channel 0 for UART0 TXIFG.
DMACTL0 = DMA0TSEL_4;
// No DMAONFETCH, ROUNDROBIN, ENNMI.
DMACTL1 = 0x0000;
/*
* Single transfer mode, dstadr unchanged, srcadr
* incremented, byte access
* Important to use DMALEVEL when using USART TX
* interrupts so first edge
* doesn't get lost (hangs every 50. - 100. time)!
*/
DMA0CTL =
DMADT_0 | DMADSTINCR_0 | DMASRCINCR_3 | DMASBDB | DMALEVEL | DMAIE;
DMA0SA = (unsigned) cc1020_txbuf;
DMA0DA = (unsigned) &TXBUF0;
DMA0SZ = cc1020_txlen;
DMA0CTL |= DMAEN; // enable DMA
U0CTL &= ~SWRST; // enable UART, starts transfer
// wait for DMA0 to finish
PROCESS_WAIT_UNTIL(ev == cc1020_event && *((unsigned char *) data) == 0);
// clean up
cc1020_txlen = 0;
cc1020_on();
} PROCESS_END();
}
static void
cc1020_write_reg(u8_t addr, u8_t adata)
{
unsigned i;
unsigned char data;
PSEL_OFF;
data = addr << 1;
PSEL_ON;
// Send address bits
for (i = 0; i < 7; i++) {
nop(); // Delay50ns();
PCLK_LOW;
nop(); // Delay50ns();
if (data & 0x80)
PDI_HIGH;
else
PDI_LOW;
data = data << 1;
PCLK_HIGH;
}
// Send read/write bit
// Ignore bit in data, always use 1
nop(); // Delay50ns();
PCLK_LOW;
PDI_HIGH;
nop(); // Delay50ns();
PCLK_HIGH;
nop(); // Delay50ns();
PCLK_LOW;
data = adata;
// Send data bits
for (i = 0; i < 8; i++) {
nop(); // Delay50ns();
PCLK_LOW;
nop(); // Delay50ns();
if (data & 0x80)
PDI_HIGH;
else
PDI_LOW;
data = data << 1;
PCLK_HIGH;
}
nop(); // Delay50ns();
PCLK_LOW;
nop(); // Delay50ns();
PSEL_OFF;
}
static u8_t
cc1020_read_reg(u8_t addr)
{
unsigned i;
unsigned char data = 0;
PSEL_OFF;
data = addr << 1;
PSEL_ON;
nop(); // Delay50ns();
// Send address bits
for (i = 0; i < 7; i++) {
nop(); // Delay50ns();
PCLK_LOW;
nop(); // Delay50ns();
if (data & 0x80)
PDI_HIGH;
else
PDI_LOW;
data = data << 1;
PCLK_HIGH;
}
// Send read/write bit
// Ignore bit in data, always use 0
nop(); // Delay50ns();
PCLK_LOW;
PDI_LOW;
nop(); // Delay50ns();
PCLK_HIGH;
nop(); // Delay50ns();
PCLK_LOW;
// Receive data bits
for (i = 0; i < 8; i++) {
nop(); // Delay50ns();
PCLK_HIGH;
nop(); // Delay50ns();
data = data << 1;
if (PDO)
data++;
nop(); // Delay50ns();
PCLK_LOW;
}
nop(); // Delay50ns();
PSEL_OFF;
return data;
}
static void
cc1020_load_config(const u8_t * config)
{
int i;
for (i = 0; i < 0x28; i++)
cc1020_write_reg(i, config[i]);
}
static void
cc1020_reset(void)
{
// Reset CC1020
cc1020_write_reg(CC1020_MAIN, 0x0FU & ~0x01U);
// Bring CC1020 out of reset
cc1020_write_reg(CC1020_MAIN, 0x1F);
}
static int
cc1020_calibrate(void)
{
unsigned char tmp;
unsigned int timeout_cnt;
// Turn off PA to avoid spurs during calibration in TX mode
cc1020_write_reg(CC1020_PA_POWER, 0x00);
// Start calibration
cc1020_write_reg(CC1020_CALIBRATE, 0xB5);
clock_delay(1200);
while ((tmp = cc1020_read_reg(CC1020_STATUS) & CAL_COMPLETE) == 0);
clock_delay(800);
// Monitor lock
timeout_cnt = LOCK_TIMEOUT;
do {
tmp = cc1020_read_reg(CC1020_STATUS);
} while (tmp & LOCK_CONTINUOUS && --timeout_cnt > 0);
// Restore PA_POWER
cc1020_write_reg(CC1020_PA_POWER, cc1020_pa_power);
// Return state of LOCK_CONTINUOUS bit
return (cc1020_read_reg(CC1020_STATUS) & LOCK_CONTINUOUS) ==
LOCK_CONTINUOUS;
}
static int
cc1020_lock(void)
{
char lock_status;
int i;
// Monitor LOCK, lasts 420 - 510 cycles @ 4505600 = 93 us - 113 us
for (i = LOCK_TIMEOUT; i > 0; i--) {
lock_status = cc1020_read_reg(CC1020_STATUS) & LOCK_CONTINUOUS;
if (lock_status)
break;
}
if (lock_status == LOCK_CONTINUOUS) {
return LOCK_OK;
} else {
// If recalibration ok
if (cc1020_calibrate())
return LOCK_RECAL_OK; // Indicate PLL in LOCK
else
return LOCK_NOK; // Indicate PLL out of LOCK
}
}
static int
cc1020_setupRX(int analog)
{
char lock_status;
// Switch into RX, switch to freq. reg A
cc1020_write_reg(CC1020_MAIN, 0x11);
// Setup bias current adjustment
cc1020_write_reg(CC1020_ANALOG, analog);
clock_delay(400); // Wait for 1 msec
lock_status = cc1020_lock();
// Switch RX part of CC1020 on
cc1020_write_reg(CC1020_MAIN, 0x01);
cc1020_write_reg(CC1020_INTERFACE, 0x02);
// Return LOCK status to application
return lock_status;
}
static int
cc1020_setupTX(int analog)
{
char lock_status;
// Setup bias current adjustment
cc1020_write_reg(CC1020_ANALOG, analog);
// Switch into TX, switch to freq. reg B
cc1020_write_reg(CC1020_MAIN, 0xC1);
clock_delay(400); // Wait for 1 msec
lock_status = cc1020_lock();
// Restore PA_POWER
cc1020_write_reg(CC1020_PA_POWER, cc1020_pa_power);
// Turn OFF DCLK squelch in TX
cc1020_write_reg(CC1020_INTERFACE, 0x01);
// Return LOCK status to application
return lock_status;
}
static void
cc1020_setupPD(void)
{
// Put CC1020 into power-down
cc1020_write_reg(CC1020_MAIN, 0x1F);
// Turn off PA to minimise current draw
cc1020_write_reg(CC1020_PA_POWER, 0x00);
}
static void
cc1020_wakeupRX(int analog)
{
// Turn on crystal oscillator core.
cc1020_write_reg(CC1020_MAIN, 0x1B);
// Setup bias current adjustment.
cc1020_write_reg(CC1020_ANALOG, analog);
// Insert wait routine here, must wait for xtal oscillator to stabilise,
// typically takes 2-5ms.
clock_delay(1200); // DelayMs(5);
// Turn on bias generator.
cc1020_write_reg(CC1020_MAIN, 0x19);
clock_delay(400); // NOT NEEDED?
// Turn on frequency synthesizer.
cc1020_write_reg(CC1020_MAIN, 0x11);
}
static void
cc1020_wakeupTX(int analog)
{
// Turn on crystal oscillator core.
cc1020_write_reg(CC1020_MAIN, 0xDB);
// Setup bias current adjustment.
cc1020_write_reg(CC1020_ANALOG, analog);
// Insert wait routine here, must wait for xtal oscillator to stabilise,
// typically takes 2-5ms.
clock_delay(1200); // DelayMs(5);
// Turn on bias generator.
cc1020_write_reg(CC1020_MAIN, 0xD9);
clock_delay(400); // NOT NEEDED?
// Turn on frequency synthesizer.
clock_delay(400);
cc1020_write_reg(CC1020_MAIN, 0xD1);
}

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/*
Copyright 2006, Freie Universitaet Berlin. All rights reserved.
These sources were developed at the Freie Universität Berlin, Computer
Systems and Telematics group.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
This software is provided by FUB and the contributors on an "as is"
basis, without any representations or warranties of any kind, express
or implied including, but not limited to, representations or
warranties of non-infringement, merchantability or fitness for a
particular purpose. In no event shall FUB or contributors be liable
for any direct, indirect, incidental, special, exemplary, or
consequential damages (including, but not limited to, procurement of
substitute goods or services; loss of use, data, or profits; or
business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence
or otherwise) arising in any way out of the use of this software, even
if advised of the possibility of such damage.
This implementation was developed by the CST group at the FUB.
For documentation and questions please use the web site
http://scatterweb.mi.fu-berlin.de and the mailinglist
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
Berlin, 2006
*/
/**
* @file cc1020.h
* @author FUB ScatterWeb Developers, Michael Baar, Nicolas Tsiftes
*
**/
#ifndef CC1020_H
#define CC1020_H
#include "dev/radio.h"
enum cc1020_power_mode {
CC1020_ALWAYS_ON
};
extern const u8_t cc1020_config_19200[];
extern const u8_t cc1020_config_115200[];
void cc1020_init(const u8_t* config);
int cc1020_on();
void cc1020_set_rx();
void cc1020_set_tx();
void cc1020_off();
void cc1020_set_receiver(void (* recv)(void));
void cc1020_set_power_mode(enum cc1020_power_mode mode);
/**
* @brief Set output power amplifier power-
*
* For good values see CC1020 documentation.
*/
void cc1020_set_power(u8_t pa_power);
unsigned int cc1020_read(u8_t *buf, unsigned int bufsize);
/**
* @brief Get RSSI of last received packet
*
* Best to call in packet handler
*/
u8_t cc1020_get_rssi();
unsigned int cc1020_send(u8_t* buf, unsigned int bufsize);
extern const struct radio_driver cc1020_driver;
PROCESS_NAME(cc1020_sender_process);
extern process_event_t cc1020_event;
#endif

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/*
* Copyright (c) 2007, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* DMA interrupt handling.
* \author
* Nicolas Tsiftes <nvt@sics.se>
*/
#include <io.h>
#include <signal.h>
#include "contiki-msb430.h"
#include "dev/cc1020.h"
interrupt(DACDMA_VECTOR) irq_dacdma(void)
{
static unsigned char line;
if (DMA0CTL & DMAIFG) {
DMA0CTL &= ~(DMAIFG | DMAIE);
line = 0;
process_post(&cc1020_sender_process, cc1020_event, &line);
}
if (DMA1CTL & DMAIFG) {
DMA1CTL &= ~(DMAIFG | DMAIE);
line = 1;
process_post(&cc1020_sender_process, cc1020_event, &line);
}
if (DAC12_0CTL & DAC12IFG) {
DAC12_0CTL &= ~(DAC12IFG | DAC12IE);
}
if (DAC12_1CTL & DAC12IFG) {
DAC12_1CTL &= ~(DAC12IFG | DAC12IE);
}
}

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/*
* Copyright (c) 2007, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* ADC functions.
* \author
* Nicolas Tsiftes <nvt@sics.se>
*/
#include <io.h>
#include <signal.h>
#include "contiki-msb430.h"
void
adc_init(void) {
//Setup ADC12, ref., sampling time, REFON for DAC!!
ADC12CTL0 = SHT0_15 + SHT1_15 + MSC;
// Use sampling timer, repeat-sequence-of-channels
ADC12CTL1 = SHP + CONSEQ_3 + CSTARTADD_0;
ADC12MCTL0 = INCH_0 + SREF_0; // P60: AIN0
ADC12MCTL1 = INCH_0 + SREF_0; // P60: AIN0
ADC12MCTL2 = INCH_0 + SREF_0; // P60: AIN0
ADC12MCTL3 = INCH_1 + SREF_0; // P61: AIN1
ADC12MCTL4 = INCH_1 + SREF_0; // P61: AIN1
ADC12MCTL5 = INCH_1 + SREF_0; // P61: AIN1
ADC12MCTL6 = INCH_2 + SREF_0; // P62: AIN2
ADC12MCTL7 = INCH_2 + SREF_0; // P62: AIN2
ADC12MCTL8 = INCH_2 + SREF_0; // P62: AIN2
ADC12MCTL9 = INCH_2 + SREF_0; // P62: AIN2
ADC12MCTL10 = INCH_3 + SREF_0; // P63: AIN2
ADC12MCTL11 = INCH_4 + SREF_0; // P64: AIN3
ADC12MCTL12 = INCH_5 + SREF_0; // P65: AIN4
ADC12MCTL13 = INCH_10 + SREF_0 + EOS; // Temp diode
}
void
adc_on(void)
{
ADC12CTL0 |= ADC12ON;
clock_delay(600);
ADC12CTL0 |= ENC;
ADC12CTL0 |= ADC12SC;
}
void
adc_off(void)
{
ADC12CTL0 &= ~ENC;
clock_delay(600);
ADC12CTL0 &= ~ADC12ON;
}

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/*
Copyright 2007, Freie Universitaet Berlin. All rights reserved.
These sources were developed at the Freie Universität Berlin, Computer
Systems and Telematics group.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
This software is provided by FUB and the contributors on an "as is"
basis, without any representations or warranties of any kind, express
or implied including, but not limited to, representations or
warranties of non-infringement, merchantability or fitness for a
particular purpose. In no event shall FUB or contributors be liable
for any direct, indirect, incidental, special, exemplary, or
consequential damages (including, but not limited to, procurement of
substitute goods or services; loss of use, data, or profits; or
business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence
or otherwise) arising in any way out of the use of this software, even
if advised of the possibility of such damage.
This implementation was developed by the CST group at the FUB.
For documentation and questions please use the web site
http://scatterweb.mi.fu-berlin.de and the mailinglist
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
Berlin, 2007
*/
/**
* @file infomem.c
* @addtogroup storage
* @brief MSP430 Infomemory Storage
* @author Michael Baar <baar@inf.fu-berlin.de>
*
* Functions to store and read data from the two infomemories (2 x 128 Bytes).
* Offset addresses start at zero, size has a maximum of 128, write operations
* across both blocks are not allowed.
*/
#include <string.h>
#include <signal.h>
#include <stdarg.h>
#include "contiki-conf.h"
#include <msp430/flash.h>
#include "infomem.h"
void infomem_read(void* buffer, unsigned int offset, unsigned char size) {
UINT8* address = (UINT8*)INFOMEM_START + offset;
memcpy(buffer, address, size);
}
bool infomem_write(unsigned int offset, unsigned char count, ...) {
char backup[INFOMEM_BLOCK_SIZE];
register UINT8* buffer;
register UINT16 i;
UINT8* flash;
if( offset > ( 2 * INFOMEM_BLOCK_SIZE) )
return false;
flash = (UINT8*)INFOMEM_START + offset;
_DINT();
// backup into RAM
memcpy(backup, flash, INFOMEM_BLOCK_SIZE);
// merge backup with new data
va_list argp;
va_start(argp, count);
buffer = (UINT8*)backup;
for( i = 0; i < count; i++ ) {
register UINT16 size;
register UINT8* data;
data = va_arg(argp, UINT8*);
size = va_arg(argp, UINT16);
memcpy(buffer, data, size);
buffer += size;
}
va_end(argp);
// init flash access
FCTL2 = FWKEY + FSSEL1 + FN2;
FCTL3 = FWKEY;
// erase flash
FCTL1 = FWKEY + ERASE;
*flash = 0;
// write flash
FCTL1 = FWKEY + WRT;
buffer = (UINT8*)backup;
for( i = 0; i < INFOMEM_BLOCK_SIZE; i++ ) {
*flash = *buffer;
buffer++; flash++;
}
FCTL1 = FWKEY;
FCTL3 = FWKEY + LOCK;
_EINT();
return true;
}

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/*
Copyright 2006, Freie Universitaet Berlin. All rights reserved.
These sources were developed at the Freie Universität Berlin, Computer
Systems and Telematics group.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
This software is provided by FUB and the contributors on an "as is"
basis, without any representations or warranties of any kind, express
or implied including, but not limited to, representations or
warranties of non-infringement, merchantability or fitness for a
particular purpose. In no event shall FUB or contributors be liable
for any direct, indirect, incidental, special, exemplary, or
consequential damages (including, but not limited to, procurement of
substitute goods or services; loss of use, data, or profits; or
business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence
or otherwise) arising in any way out of the use of this software, even
if advised of the possibility of such damage.
This implementation was developed by the CST group at the FUB.
For documentation and questions please use the web site
http://scatterweb.mi.fu-berlin.de and the mailinglist
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
Berlin, 2006
*/
/**
* @file infomem.h
* @addtogroup storage
* @brief MSP430 Infomemory Storage
*
* @author Michael Baar <baar@inf.fu-berlin.de>
*/
#ifndef INFOMEM_H_
#define INFOMEM_H_
/* These defines might depend on the specific CPU used and have to be defined in platform:
#define INFOMEM_START 0x1000
#define INFOMEM_BLOCK_SIZE 128
*/
#if !defined(INFOMEM_START) || !defined(INFOMEM_BLOCK_SIZE)
#error "Infomemory position (INFOMEM_START) and blocksize (INFOMEM_BLOCK_SIZE) need to be defined for current platform"
#endif
/**
* @brief Read bytes from infomemory
* @param[out] buffer Pointer to buffer for read data
* @param[in] offset Offset in infomemory (0-254)
* @param[in] size Number of bytes to read
*/
void infomem_read(void* buffer, unsigned int offset, unsigned char size);
/**
* @brief Write bytes to infomemory
* @param[in] offset Offset in infomemory (0-254)
* @param[in] count Number of items following
* each item is a pair pointer, length
*
* Example: Infomem_write( 0, 2, &a,3, &b,1 );
*
* \note: The MSP430 has two consecutive blocks of infomemory. Each is 128 Bytes large.
* The offset is the relative address starting at the beginning of the first block.
* You can write an arbitrary number of bytes at any offse, but this
* function cannot write across the two blocks of infomemory.
*/
bool infomem_write(unsigned int offset, unsigned char count, ...);
#endif // INFOMEM_H

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/*
Copyright 2007, Freie Universitaet Berlin. All rights reserved.
These sources were developed at the Freie Universität Berlin, Computer
Systems and Telematics group.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
This software is provided by FUB and the contributors on an "as is"
basis, without any representations or warranties of any kind, express
or implied including, but not limited to, representations or
warranties of non-infringement, merchantability or fitness for a
particular purpose. In no event shall FUB or contributors be liable
for any direct, indirect, incidental, special, exemplary, or
consequential damages (including, but not limited to, procurement of
substitute goods or services; loss of use, data, or profits; or
business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence
or otherwise) arising in any way out of the use of this software, even
if advised of the possibility of such damage.
This implementation was developed by the CST group at the FUB.
For documentation and questions please use the web site
http://scatterweb.mi.fu-berlin.de and the mailinglist
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
Berlin, 2007
*/
/**
* @file ScatterWeb.Uart.c
* @addtogroup interfaces
* @brief UART interface
* @author Michael Baar <baar@inf.fu-berlin.de>
*
* UART switch for RS232 and SPI protocols on UART1 written for
* ScatterWeb MSB boards. Compatible to ScatterWeb EOS,
* ScatterWeb Bootload and Contiki.
*/
#include <io.h>
#include <signal.h>
#include <string.h>
#include "dev/msb430-uart1.h"
#include "msp430.h"
#include "dev/lpm.h"
#ifndef U1ME
#define U1ME ME2
#endif
void _uart_configure(unsigned char mode);
void _uart_set_mode(unsigned char mode);
volatile unsigned char uart_mode = UART_MODE_RESET;
volatile unsigned char uart_lockcnt = 0;
static unsigned char _uart_speed_br0[UART_NUM_MODES];
static unsigned char _uart_speed_br1[UART_NUM_MODES];
static unsigned char _uart_speed_bmn[UART_NUM_MODES];
static fp_uart_handler _uart_handler[UART_NUM_MODES] = {NULL, NULL};
/*---------------------------------------------------------------------------*/
void
uart_set_speed(unsigned char mode, unsigned char ubr0,
unsigned char ubr1, unsigned char umctl)
{
// store setting
_uart_speed_br0[mode] = ubr0; // baudrate
_uart_speed_br1[mode] = ubr1; // baudrate
_uart_speed_bmn[mode] = umctl; // modulation
// reconfigure, if mode active
if (uart_mode == mode)
_uart_configure(mode);
}
/*---------------------------------------------------------------------------*/
void
uart_set_handler(unsigned char mode, fp_uart_handler fpHandler)
{
// store setting
_uart_handler[mode] = fpHandler;
if (mode == uart_mode) {
if (fpHandler == NULL)
IE2 &= ~URXIE1; // Disable USART1 RX interrupt
else
IE2 |= URXIE1; // Enable USART1 RX interrupt
}
}
/*---------------------------------------------------------------------------*/
char
uart_lock(unsigned char mode)
{
// already locked?
if ((mode != uart_mode) && (uart_lockcnt)) {
return 0;
} else {
// increase lock count
uart_lockcnt++;
// switch mode (if neccessary)
_uart_set_mode(mode);
return 1;
}
}
/*---------------------------------------------------------------------------*/
char
uart_unlock(unsigned char mode)
{
/*
Do we wan't strict checking?
if( (uart_lockcnt == 0) || (mode != uart_mode) )
return false;
*/
// decrement lock
if (uart_lockcnt > 0) {
uart_lockcnt--;
// if no more locks, switch back to default mode
if (uart_lockcnt == 0) {
_uart_set_mode(UART_MODE_DEFAULT);
}
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
void
_uart_configure(unsigned char mode)
{
_DINT(); // disable interrupts
UART_WAIT_TXDONE();
// wait till all buffered data has been transmitted
// configure
if (mode == UART_MODE_RS232) {
P5OUT |= 0x01;
// unselect SPI
P3SEL |= 0xC0;
// select rs232
// to RS232 mode
UCTL1 = SWRST | CHAR; // 8-bit character
UTCTL1 |= SSEL1; // UCLK = MCLK
// activate
U1ME |= UTXE1 | URXE1; // Enable USART1 TXD/RXD
} else if( mode == UART_MODE_SPI ) {
P3SEL &= ~0xC0; // unselect RS232
// to SPI mode
UCTL1 = SWRST | CHAR | SYNC | MM; // 8-bit SPI Master
/*
* SMCLK, 3-pin mode, clock idle low, data valid on
* rising edge, UCLK delayed
*/
UTCTL1 |= CKPH | SSEL1 | SSEL0 | STC; // activate
U1ME |= USPIE1; // Enable USART1 SPI
}
// restore speed settings
UBR01 = _uart_speed_br0[mode]; // set baudrate
UBR11 = _uart_speed_br1[mode];
UMCTL1 = _uart_speed_bmn[mode]; // set modulation
UCTL1 &= ~SWRST; // clear reset flag
_EINT(); // enable interrupts
}
/*---------------------------------------------------------------------------*/
void
_uart_set_mode(unsigned char mode)
{
// do nothing if mode already set
if( mode == uart_mode )
return;
IE2 &= ~(URXIE1 | UTXIE1); // disable irq
_uart_configure(mode); // configure uart parameters
uart_mode = mode;
if (_uart_handler[mode] != NULL)
IE2 |= URXIE1; // Enable USART1 RX interrupt
}
/*---------------------------------------------------------------------------*/
interrupt(UART1RX_VECTOR)_uart_rx(void)
{
fp_uart_handler handler = _uart_handler[uart_mode];
/* Check status register for receive errors. - before reading RXBUF since
it clears the error and interrupt flags */
if (!(URCTL1 & RXERR) && handler != NULL) {
if(handler(UART_RX)) {
LPM_AWAKE();
}
} else {
// read out the char to clear the I-flags, etc.
UART_RX;
}
}

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/*
Copyright 2007, Freie Universitaet Berlin. All rights reserved.
These sources were developed at the Freie Universität Berlin, Computer
Systems and Telematics group.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
This software is provided by FUB and the contributors on an "as is"
basis, without any representations or warranties of any kind, express
or implied including, but not limited to, representations or
warranties of non-infringement, merchantability or fitness for a
particular purpose. In no event shall FUB or contributors be liable
for any direct, indirect, incidental, special, exemplary, or
consequential damages (including, but not limited to, procurement of
substitute goods or services; loss of use, data, or profits; or
business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence
or otherwise) arising in any way out of the use of this software, even
if advised of the possibility of such damage.
This implementation was developed by the CST group at the FUB.
For documentation and questions please use the web site
http://scatterweb.mi.fu-berlin.de and the mailinglist
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
Berlin, 2007
*/
/**
* @addtogroup interfaces
* @{ */
/**
* @defgroup uart1 UART1
* The UART module multiplexes differenct protocol on the MSB's UART1
* interface. Currently RS232 and SPI are supported.
* @{
*/
/**
* @file ScatterWeb.Uart.h
* @author Michael Baar <baar@inf.fu-berlin.de>
*
* Header file for MSP430 UART driver.
*/
#ifndef __UART_H__
#define __UART_H__
#define UART_RX RXBUF1
#define UART_TX TXBUF1
#define UART_RESET_RX() do { U1IFG &= ~URXIFG1; } while(0)
#define UART_RESET_RXTX() do { U1IFG &= ~(URXIFG1 | UTXIFG1); } while(0)
#define UART_WAIT_RX() while( (U1IFG & URXIFG1) == 0 ) { _NOP(); }
#define UART_WAIT_TX() while( (U1IFG & UTXIFG1) == 0 ) { _NOP(); }
#define UART_WAIT_TXDONE() while( (UTCTL1 & TXEPT) == 0 ) { _NOP(); }
/**
* @brief Operating state
*/
extern volatile unsigned char uart_mode;
extern volatile unsigned char uart_lockcnt;
/**
* @name UART mode flags
* @{
*/
#define UART_MODE_RS232 (0x00u) ///< RS232 mode
#define UART_MODE_SPI (0x01u) ///< SPI mode
#define UART_MODE_DEFAULT UART_MODE_RS232
#define UART_NUM_MODES (UART_MODE_SPI + 1) ///< Highest mode number
#define UART_MODE_RESET (0xFFu) ///< reset with current settings
/** @} */
#define UART_WAIT_LOCK(x) ( (uart_mode != x ) && (uart_lockcnt) )
#define UART_MODE_IS(x) ( uart_mode == x )
#if 0
#ifdef __SCATTERWEB__
typedef void(*fp_uart_handler)(void);
#else
typedef unsigned int(*fp_uart_handler)(unsigned char);
#endif
#endif
typedef unsigned int(*fp_uart_handler)(unsigned char);
/**
* \brief Initialize the UART module
*
* This function is called from the boot up code to
* initalize the UART module.
*/
void uart_init(void);
void uart_set_speed(unsigned char mode, unsigned char ubr0, unsigned char ubr1, unsigned char umctl);
void uart_set_handler(unsigned char mode, fp_uart_handler fpHandler);
char uart_lock(unsigned char mode);
char uart_unlock(unsigned char mode);
#endif /* __UART_H__ */
/** @} */
/** @} */

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/*
* Copyright (c) 2005, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: rs232.c,v 1.1 2007/06/28 12:52:42 nvt-se Exp $
*/
/** \addtogroup esbrs232
* @{ */
/**
* \file
* RS232 communication device driver for the MSP430.
* \author Adam Dunkels <adam@sics.se>
*
* This file contains an RS232 device driver for the MSP430 microcontroller.
*
*/
#include <io.h>
#include <signal.h>
#include <string.h>
#include "dev/msb430-uart1.h"
#include "rs232.h"
#ifndef U1IFG
#define U1IFG IFG2
#endif
/*---------------------------------------------------------------------------*/
/**
* Initalize the RS232 port.
*
*/
void
rs232_init(void)
{
// rs232_set_speed(RS232_57600);
rs232_set_speed(RS232_115200);
}
/*---------------------------------------------------------------------------*/
void
rs232_send(char c)
{
/* Check if the UART is in RS232 mode before sending.
This check can be ommitted if every access to rs232 locks the uart
before using it.
*/
if (uart_mode == UART_MODE_RS232) {
/* Loop until the transmission buffer is available. */
UART_WAIT_TX();
/* Transmit the data. */
UART_TX = c;
}
}
/*---------------------------------------------------------------------------*/
void
rs232_set_speed(enum rs232_speed speed)
{
// baud
const unsigned char br_table[4][3] = {
{0x80, 0x00, 0x00}, // 19200
{0x40, 0x00, 0x00}, // 38400
{0x2a, 0x00, 0x5b}, // 57600
{0x15, 0x00, 0x4a} // 115200
};
uart_set_speed(UART_MODE_RS232, br_table[speed][0],
br_table[speed][1], br_table[speed][2]);
}
/*---------------------------------------------------------------------------*/
void
rs232_print(char *cptr)
{
// lock UART for print operation
if (uart_lock(UART_MODE_RS232)) {
while(*cptr != 0) {
rs232_send(*cptr);
++cptr;
}
uart_unlock(UART_MODE_RS232);
}
}
/*---------------------------------------------------------------------------*/
void
rs232_set_input(fp_uart_handler f)
{
uart_set_handler(UART_MODE_RS232, f);
}
/** @} */

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/*
* Copyright (c) 2005, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: rs232.h,v 1.1 2007/06/28 12:52:42 nvt-se Exp $
*/
/** \addtogroup esb
* @{ */
/**
* \defgroup esbrs232 ESB RS232
*
* @{
*/
/**
* \file
* Header file for MSP430 RS232 driver.
* \author Adam Dunkels <adam@sics.se>
*
*/
#ifndef __RS232_H__
#define __RS232_H__
enum rs232_speed {
RS232_19200 = 0,
RS232_38400 = 1,
RS232_57600 = 2,
RS232_115200 = 3
};
/**
* \brief Initialize the RS232 module
*
* This function is called from the boot up code to
* initalize the RS232 module.
*/
void rs232_init(void);
/**
* \brief Set an input handler for incoming RS232 data
* \param f A pointer to a byte input handler
*
* This function sets the input handler for incoming RS232
* data. The input handler function is called for every
* incoming data byte. The function is called from the
* RS232 interrupt handler, so care must be taken when
* implementing the input handler to avoid race
* conditions.
*
* The return value of the input handler affects the sleep
* mode of the CPU: if the input handler returns non-zero
* (true), the CPU is awakened to let other processing
* take place. If the input handler returns zero, the CPU
* is kept sleeping.
*/
void rs232_set_input(fp_uart_handler f);
/**
* \brief Configure the speed of the RS232 hardware
* \param speed The speed
*
* This function configures the speed of the RS232
* hardware. The allowed parameters are RS232_19200,
* RS232_38400, RS232_57600, and RS232_115200.
*/
void rs232_set_speed(enum rs232_speed speed);
/**
* \brief Print a text string on RS232
* \param str A pointer to the string that is to be printed
*
* This function prints a string to RS232. The string must
* be terminated by a null byte. The RS232 module must be
* correctly initalized and configured for this function
* to work.
*/
void rs232_print(char *text);
/**
* \brief Print a character on RS232
* \param c The character to be printed
*
* This function prints a character to RS232. The RS232
* module must be correctly initalized and configured for
* this function to work.
*/
void rs232_send(char c);
#endif /* __RS232_H__ */
/** @} */
/** @} */

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/*
Copyright 2007, Freie Universitaet Berlin. All rights reserved.
These sources were developed at the Freie Universität Berlin, Computer
Systems and Telematics group.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
This software is provided by FUB and the contributors on an "as is"
basis, without any representations or warranties of any kind, express
or implied including, but not limited to, representations or
warranties of non-infringement, merchantability or fitness for a
particular purpose. In no event shall FUB or contributors be liable
for any direct, indirect, incidental, special, exemplary, or
consequential damages (including, but not limited to, procurement of
substitute goods or services; loss of use, data, or profits; or
business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence
or otherwise) arising in any way out of the use of this software, even
if advised of the possibility of such damage.
This implementation was developed by the CST group at the FUB.
For documentation and questions please use the web site
http://scatterweb.mi.fu-berlin.de and the mailinglist
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
Berlin, 2007
*/
/**
* @file ScatterWeb.Spi.c
* @ingroup libsdspi
* @brief Serial Peripheral Interface for SD library
*
* @author Michael Baar <baar@inf.fu-berlin.de>
* @date 2007
* @version 1.0
*/
#include <io.h>
#include <signal.h>
#include <string.h>
#include "contiki-msb430.h"
#define SPI_IDLE_SYMBOL 0xFF
void
spi_init(void)
{
/* The 16-bit value of UxBR0+UxBR1 is the division factor of the USART clock
* source, BRCLK. The maximum baud rate that can be generated in master
* mode is BRCLK/2. The maximum baud rate that can be generated in slave
* mode is BRCLK. The modulator in the USART baud rate generator is not used
* for SPI mode and is recommended to be set to 000h. The UCLK frequency is
* given by:
* Baud rate = BRCLK / UxBR with UxBR= [UxBR1, UxBR0]
*/
uart_set_speed(UART_MODE_SPI, 0x02, 0x00, 0x00);
}
UINT8
spi_rx(void)
{
UART_RESET_RX();
UART_TX = SPI_IDLE_SYMBOL;
UART_WAIT_RX();
return (UART_RX);
}
void
spi_tx(register const UINT8 c)
{
UART_RESET_RX();
UART_TX = c;
UART_WAIT_RX();
}
void
spi_read(void *pDestination, const UINT16 size, const bool incDest)
{
register UINT8 *p = (UINT8 *) pDestination;
register UINT16 i;
for (i = size; i > 0; i--) {
*p = spi_rx();
if (incDest)
p++;
}
}
void
spi_write(const void *pSource, const UINT16 size, const UINT8 startToken,
const bool incSource)
{
register unsigned char *p = (unsigned char *) pSource;
register UINT16 i;
spi_tx(startToken);
for (i = size; i > 0; i--) {
spi_tx(*p);
if (incSource)
p++;
}
}
void
spi_idle(register const UINT16 clocks)
{
register UINT16 i;
for (i = 0; i < clocks; i++) {
UART_RESET_RX();
UART_TX = SPI_IDLE_SYMBOL;
UART_WAIT_RX();
}
}
UINT8
spi_wait_token(const UINT8 token, const UINT16 timeout)
{
UINT16 i;
UINT8 rx;
for (i = 0; i < timeout; i++) {
rx = spi_rx();
if (rx == token)
return true;
}
return false;
}

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/*
Copyright 2006, Freie Universitaet Berlin. All rights reserved.
These sources were developed at the Freie Universität Berlin, Computer
Systems and Telematics group.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
This software is provided by FUB and the contributors on an "as is"
basis, without any representations or warranties of any kind, express
or implied including, but not limited to, representations or
warranties of non-infringement, merchantability or fitness for a
particular purpose. In no event shall FUB or contributors be liable
for any direct, indirect, incidental, special, exemplary, or
consequential damages (including, but not limited to, procurement of
substitute goods or services; loss of use, data, or profits; or
business interruption) however caused and on any theory of liability,
whether in contract, strict liability, or tort (including negligence
or otherwise) arising in any way out of the use of this software, even
if advised of the possibility of such damage.
This implementation was developed by the CST group at the FUB.
For documentation and questions please use the web site
http://scatterweb.mi.fu-berlin.de and the mailinglist
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
Berlin, 2006
*/
/**
* @defgroup libsdspi Serial Peripheral Interface
* @ingroup libsd
*/
/**
* @file ScatterWeb.Spi.h
* @ingroup libsdspi
* @brief Serial Peripheral Interface
*
* @author Michael Baar <baar@inf.fu-berlin.de>
* @date 2006
* @version 1.0
*/
#ifndef SPI_H_
#define SPI_H_
#ifndef SPI_DMA_READ
#define SPI_DMA_READ 0
#endif
#ifndef SPI_DMA_WRITE
#define SPI_DMA_WRITE 0
#endif
#ifndef SPI_WRITE
#define SPI_WRITE 1
#endif
void spi_init(void);
/// Configure UART1 for SPI mode
void spi_enable(void);
/// Receive one byte from SPI
UINT8 spi_rx(void);
/// Send one byte to SPI
void spi_tx(const UINT8 c);
/// Read a number of bytes from SPI
void spi_read(void *pDestination, const UINT16 size, const bool incDest);
#if SPI_DMA_WRITE
extern UINT8 spi_dma_lock;
#endif
#if SPI_DMA_READ || SPI_DMA_WRITE
void spi_dma_wait();
#endif
#if SPI_WRITE
/// Write a number of bytes to SPI
void spi_write(const void *pSource,
const UINT16 size,
const UINT8 startToken, const bool incSource);
#endif
/// Wait a number of clock cycles
void spi_idle(const UINT16 clocks);
/// Read chars until token is received
UINT8 spi_wait_token(const UINT8 token, const UINT16 timeout);
#endif /*SPI_H_ */

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/*
* Copyright (c) 2005, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: watchdog.c,v 1.1 2007/06/28 12:52:47 nvt-se Exp $
*/
#include <io.h>
#include "dev/watchdog.h"
/*------------------------------------------------------------------------------*/
void
watchdog_init(void)
{
WDTCTL = WDT_ARST_1000 + WDTNMI + WDTNMIES;
}
/*------------------------------------------------------------------------------*/
void
watchdog_restart(void)
{
WDTCTL = WDT_ARST_1000 + WDTNMI + WDTNMIES;
}
/*------------------------------------------------------------------------------*/
void
watchdog_stop(void)
{
WDTCTL = WDTPW + WDTHOLD + WDTNMI + WDTNMIES;
}
/*------------------------------------------------------------------------------*/