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mac-rom-simm-programmer
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Added LED toggle to write/read modes. 

Read is so fast that you can't even see the blinking, but oh well.
I also added an "led.h" header file that I should have done long ago.
This commit is contained in:
Doug Brown 2012-05-27 15:41:16 -07:00
parent 4b2533b69f
commit 533813e949
3 changed files with 29 additions and 4 deletions
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19
led.h Normal file
View File

@ -0,0 +1,19 @@
/*
* led.h
*
* Created on: May 27, 2012
* Author: Doug
*/
#ifndef LED_H_
#define LED_H_
#include <avr/io.h>
#define PIN_MASK (1 << 7)
#define LED_Init() do { DDRD |= PIN_MASK; LED_Off(); } while (0)
#define LED_On() PORTD |= PIN_MASK
#define LED_Off() PORTD &= ~PIN_MASK
#define LED_Toggle() PIND = PIN_MASK
#endif /* LED_H_ */

8
main.c
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@ -28,21 +28,21 @@
#include "external_mem.h"
#include "tests/simm_electrical_test.h"
#include "usb_serial/usb_serial.h"
#include "led.h"
int main(void)
{
cli();
DDRD |= (1 << 7);
PORTD &= ~(1 << 7);
LED_Init();
// If there was a brownout detected, turn on the LED momentarily
if (MCUSR & (1 << BORF))
{
MCUSR = 0;
PORTD |= (1 << 7);
LED_On();
_delay_ms(500);
PORTD &= ~(1 << 7);
LED_Off();
}
ExternalMem_Init();

6
usb_serial/usb_serial.c
View File

@ -28,6 +28,7 @@
#include "../external_mem.h"
#include "../tests/simm_electrical_test.h"
#include "../programmer_protocol.h"
#include "../led.h"
#define MAX_CHIP_SIZE (512UL * 1024UL)
#define READ_CHUNK_SIZE_BYTES 1024UL
@ -228,11 +229,13 @@ void USBSerial_HandleReadingChipsByte(uint8_t byte)
// that they have finished, and enter command state.
if (curReadIndex >= readLength)
{
LED_Off();
SendByte(ProgrammerReadFinished);
curCommandState = WaitingForCommand;
}
else // There's more data left to read, so read it and send it to them!
{
LED_Toggle();
SendByte(ProgrammerReadMoreData);
USBSerial_SendReadDataChunk();
}
@ -341,11 +344,13 @@ void USBSerial_HandleWritingChipsByte(uint8_t byte)
break;
// The computer said that it's done writing.
case ComputerWriteFinish:
LED_Off();
SendByte(ProgrammerWriteOK);
curCommandState = WaitingForCommand;
break;
// The computer asked to cancel.
case ComputerWriteCancel:
LED_Off();
SendByte(ProgrammerWriteConfirmCancel);
curCommandState = WaitingForCommand;
break;
@ -364,6 +369,7 @@ void USBSerial_HandleWritingChipsByte(uint8_t byte)
SendByte(ProgrammerWriteOK);
curWriteIndex++;
writePosInChunk = -1;
LED_Toggle();
}
}
}