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contiki/tests/sleep.c
Mariano Alvira bf9e762a81 moved crm addresses to crm.h
2009-05-27 15:05:25 -04:00

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7.6 KiB
C
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#define GPIO_PAD_DIR0 0x80000000
#define GPIO_DATA0 0x80000008
#define GPIO_FUNC_SEL0 0x80000018 /* GPIO 15 - 0; 2 bit blocks */
#define GPIO_PAD_PU_EN0 0x80000010
#define GPIO_PAD_PU_EN1 0x80000014
#define ADC_CONTROL 0x80000018
#define BASE_UART1 0x80005000
#define UART1_CON 0x80005000
#define UART1_STAT 0x80005004
#define UART1_DATA 0x80005008
#define UR1CON 0x8000500c
#define UT1CON 0x80005010
#define UART1_CTS 0x80005014
#define UART1_BR 0x80005018
#define DELAY 400000
#define USE_32KHZ 1
#include "embedded_types.h"
#include "isr.h"
#include "utils.h"
#include "maca.h"
#include "crm.h"
void putc(uint8_t c);
void puts(uint8_t *s);
void put_hex(uint8_t x);
void put_hex16(uint16_t x);
void put_hex32(uint32_t x);
const uint8_t hex[16]={'0','1','2','3','4','5','6','7',
'8','9','a','b','c','d','e','f'};
typedef void (*pfCallback_t)(void);
typedef struct
{
uint8_t sleepType:1;// 0 hibernate / 1 doze
uint8_t ramRet:2;
uint8_t mcuRet:1;
uint8_t digPadRet:1;
pfCallback_t pfToDoBeforeSleep;
}crmSleepCtrl_t;
void do_nothing(void) {
return;
}
void (*crm_gotosleep)(crmSleepCtrl_t *foo) = 0x0000364d;
__attribute__ ((section ("startup"))) void main(void) {
crmSleepCtrl_t crmSleepCtrl;
// reg32(GPIO_PAD_DIR0) = 0x00000100;
// reg32(GPIO_DATA0) = 0x00000100;
/* Restore UART regs. to default */
/* in case there is still bootloader state leftover */
// *(volatile uint32_t *)UART1_CON = 0x0000c800; /* mask interrupts, 16 bit sample --- helps explain the baud rate */
/* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */
#define INC 767
#define MOD 9999
// *(volatile uint32_t *)UART1_BR = INC<<16 | MOD;
/* see Section 11.5.1.2 Alternate Modes */
/* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */
/* From the datasheet: "The peripheral function will control operation of the pad IF */
/* THE PERIPHERAL IS ENABLED. */
// *(volatile uint32_t *)UART1_CON = 0x00000003; /* enable receive and transmit */
// *(volatile uint32_t *)GPIO_FUNC_SEL0 = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/
reg32(0x00401ffc) = 0x01234567;
reg32(0x00407ffc) = 0xdeadbeef;
reg32(0x0040fffc) = 0xface00ff;
reg32(0x00410000) = 0xabcd0123;
puts("sleep test\n\r");
puts("0x00401ffc: ");
put_hex32(reg32(0x00401ffc));
puts("\r\n");
puts("0x00407ffc: ");
put_hex32(reg32(0x00407ffc));
puts("\r\n");
puts("0x0040fffc: ");
put_hex32(reg32(0x0040fffc));
puts("\r\n");
puts("0x00410000: ");
put_hex32(reg32(0x00410000));
puts("\r\n");
/* radio must be OFF before sleeping */
/* otherwise MCU will not wake up properly */
/* this is undocumented behavior */
radio_off();
/* disable all pullups */
/* seems to make a slight difference (2.0uA vs 1.95uA)*/
reg32(GPIO_PAD_PU_EN0) = 0;
reg32(GPIO_PAD_PU_EN1) = 0;
reg16(ADC_CONTROL) = 0; /* internal Vref2 */
reg16(CRM_XTAL_CNTL) = 0x052; /* default is 0xf52 */ /* doesn't anything w.r.t. power */
#if USE_32KHZ
/* turn on the 32kHz crystal */
puts("enabling 32kHz crystal\n\r");
/* you have to hold it's hand with this on */
/* once you start the 32xHz crystal it can only be stopped with a reset (hard or soft) */
/* first, disable the ring osc */
clear_bit(reg32(CRM_RINGOSC_CNTL),0);
/* enable the 32kHZ crystal */
set_bit(reg32(CRM_XTAL32_CNTL),0);
/* set the XTAL32_EXISTS bit */
/* the datasheet says to do this after you've check that RTC_COUNT is changing */
/* the datasheet is not correct */
set_bit(reg32(CRM_SYS_CNTL),5);
{
static volatile uint32_t old;
old = reg32(CRM_RTC_COUNT);
puts("waiting for xtal\n\r");
while(reg32(CRM_RTC_COUNT) == old) {
continue;
}
/* RTC has started up */
set_bit(reg32(CRM_SYS_CNTL),5);
puts("32kHZ xtal started\n\r");
}
#endif
/* go to sleep */
// reg32(CRM_WU_CNTL) = 0; /* don't wake up */
reg32(CRM_WU_CNTL) = 0x1; /* enable wakeup from wakeup timer */
// reg32(CRM_WU_TIMEOUT) = 1875000; /* wake 10 sec later if doze */
#if USE_32KHZ
reg32(CRM_WU_TIMEOUT) = 327680*2;
#else
reg32(CRM_WU_TIMEOUT) = 20000; /* wake 10 sec later if hibernate w/2kHz*/
#endif
/* hobby board: 2kHz = 11uA; 32kHz = 11uA */
// reg32(CRM_SLEEP_CNTL) = 1; /* hibernate, RAM page 0 only, don't retain state, don't power GPIO */ /* approx. 2kHz = 2.0uA */
/* hobby board: 2kHz = 18uA; 32kHz = 19uA */
// reg32(CRM_SLEEP_CNTL) = 0x41; /* hibernate, RAM page 0 only, retain state, don't power GPIO */ /* approx. 2kHz = 10.0uA */
/* hobby board: 2kHz = 20uA; 32kHz = 21uA */
// reg32(CRM_SLEEP_CNTL) = 0x51; /* hibernate, RAM page 0&1 only, retain state, don't power GPIO */ /* approx. 2kHz = 11.7uA */
/* hobby board: 2kHz = 22uA; 32kHz = 22.5uA */
// reg32(CRM_SLEEP_CNTL) = 0x61; /* hibernate, RAM page 0,1,2 only, retain state, don't power GPIO */ /* approx. 2kHz = 13.9uA */
/* hobby board: 2kHz = 24uA; 32kHz = 25uA */
// reg32(CRM_SLEEP_CNTL) = 0x71; /* hibernate, all RAM pages, retain state, don't power GPIO */ /* approx. 2kHz = 16.1uA */
// reg32(CRM_SLEEP_CNTL) = 0xf1; /* hibernate, all RAM pages, retain state, power GPIO */ /* consumption depends on GPIO hookup */
// reg32(CRM_SLEEP_CNTL) = 2; /* doze , RAM page 0 only, don't retain state, don't power GPIO */ /* approx. 69.2 uA */
// reg32(CRM_SLEEP_CNTL) = 0x42; /* doze , RAM page 0 only, retain state, don't power GPIO */ /* approx. 77.3uA */
// reg32(CRM_SLEEP_CNTL) = 0x52; /* doze , RAM page 0&1 only, retain state, don't power GPIO */ /* approx. 78.9uA */
// reg32(CRM_SLEEP_CNTL) = 0x62; /* doze , RAM page 0,1,2 only, retain state, don't power GPIO */ /* approx. 81.2uA */
// reg32(CRM_SLEEP_CNTL) = 0x72; /* doze , all RAM pages, retain state, don't power GPIO */ /* approx. 83.4uA - possibly with periodic refresh*/
// reg32(CRM_SLEEP_CNTL) = 0xf2; /* doze , all RAM pages, retain state, power GPIO */ /* consumption depends on GPIO hookup */
/* crmSleepCtrl.sleepType = 0; */
/* crmSleepCtrl.ramRet = 3; */
/* crmSleepCtrl.mcuRet = 1; */
/* crmSleepCtrl.digPadRet = 1; */
/* crmSleepCtrl.pfToDoBeforeSleep = do_nothing; */
/* crm_gotosleep(&crmSleepCtrl); */
/* wait for the sleep cycle to complete */
while((reg32(CRM_STATUS) & 0x1) == 0) { continue; }
/* write 1 to sleep_sync --- this clears the bit (it's a r1wc bit) and powers down */
reg32(CRM_STATUS) = 1;
/* asleep */
/* wait for the awake cycle to complete */
while((reg32(CRM_STATUS) & 0x1) == 0) { continue; }
/* write 1 to sleep_sync --- this clears the bit (it's a r1wc bit) and finishes wakeup */
reg32(CRM_STATUS) = 1;
puts("\n\r\n\r\n\r");
puts("0x00401ffc: ");
put_hex32(reg32(0x00401ffc));
puts("\r\n");
puts("0x00407ffc: ");
put_hex32(reg32(0x00407ffc));
puts("\r\n");
puts("0x0040fffc: ");
put_hex32(reg32(0x0040fffc));
puts("\r\n");
puts("0x00410000: ");
put_hex32(reg32(0x00410000));
puts("\r\n");
volatile uint32_t i;
while(1) {
reg32(GPIO_DATA0) = 0x00000100;
for(i=0; i<DELAY; i++) { continue; }
reg32(GPIO_DATA0) = 0x00000000;
for(i=0; i<DELAY; i++) { continue; }
};
}
void putc(uint8_t c) {
while(reg32(UT1CON)==31); /* wait for there to be room in the buffer */
reg32(UART1_DATA) = c;
}
void puts(uint8_t *s) {
while(s && *s!=0) {
putc(*s++);
}
}
void put_hex(uint8_t x)
{
putc(hex[x >> 4]);
putc(hex[x & 15]);
}
void put_hex16(uint16_t x)
{
put_hex((x >> 8) & 0xFF);
put_hex((x) & 0xFF);
}
void put_hex32(uint32_t x)
{
put_hex((x >> 24) & 0xFF);
put_hex((x >> 16) & 0xFF);
put_hex((x >> 8) & 0xFF);
put_hex((x) & 0xFF);
}
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