Macintosh-SW/mac-rom-simm-programmer
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Added extra commands for moving back and forth between the bootloader and the actual program.

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Disabled the flash erase capability on the main program while I'm working on the bootloader...
This commit is contained in:
Doug Brown 2011-12-24 20:09:39 -08:00
parent 035e7cce28
commit 258fb187ad
2 changed files with 40 additions and 10 deletions
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4
.settings/de.innot.avreclipse.core.prefs
View File

@ -1,4 +1,4 @@
#Tue Dec 20 21:48:25 PST 2011
#Sat Dec 24 19:28:57 PST 2011
avrtarget/ClockFrequency=16000000
avrtarget/ExtRAMSize=0
avrtarget/ExtendedRAM=false
@ -21,7 +21,7 @@ avrtarget/avrdude/Locks/FileName=
avrtarget/avrdude/Locks/MCUid=at90usb646
avrtarget/avrdude/Locks/UseFile=false
avrtarget/avrdude/Locks/Write=false
avrtarget/avrdude/NoChipErase=false
avrtarget/avrdude/NoChipErase=true
avrtarget/avrdude/NoSigCheck=false
avrtarget/avrdude/NoVerify=false
avrtarget/avrdude/NoWrite=false

46
usb_serial/usb_serial.c
View File

@ -63,25 +63,34 @@ typedef enum ProgrammerCommand
ReadByte,
ReadChips,
EraseChips,
WriteChips
WriteChips,
GetBootloaderState,
EnterBootloader,
EnterProgrammer
} ProgrammerCommand;
typedef enum ProgrammerReply
{
CommandReplyOK,
CommandReplyOK = 0,
CommandReplyError,
CommandReplyInvalid
} ProgrammerReply;
typedef enum BootloaderStateReply
{
BootloaderStateInBootloader = 0,
BootloaderStateInProgrammer
} BootloaderStateReply;
typedef enum ComputerReadReply
{
ComputerReadOK,
ComputerReadOK = 0,
ComputerReadCancel
} ComputerReadReply;
typedef enum ProgrammerReadReply
{
ProgrammerReadOK,
ProgrammerReadOK = 0,
ProgrammerReadError,
ProgrammerReadMoreData,
ProgrammerReadFinished,
@ -90,26 +99,26 @@ typedef enum ProgrammerReadReply
typedef enum ComputerWriteReply
{
ComputerWriteMore,
ComputerWriteMore = 0,
ComputerWriteFinish,
ComputerWriteCancel
} ComputerWriteReply;
typedef enum ProgrammerWriteReply
{
ProgrammerWriteOK,
ProgrammerWriteOK = 0,
ProgrammerWriteError,
ProgrammerWriteConfirmCancel
} ProgrammerWriteReply;
typedef enum ProgrammerIdentifyReply
{
ProgrammerIdentifyDone
ProgrammerIdentifyDone = 0
} ProgrammerIdentifyReply;
typedef enum ProgrammerElectricalTestReply
{
ProgrammerElectricalTestFail,
ProgrammerElectricalTestFail = 0,
ProgrammerElectricalTestDone
} ProgrammerElectricalTestReply;
@ -282,6 +291,27 @@ void USBSerial_HandleWaitingForCommandByte(uint8_t byte)
writePosInChunk = -1;
SendByte(CommandReplyOK);
break;
case GetBootloaderState:
SendByte(CommandReplyOK);
SendByte(BootloaderStateInProgrammer);
break;
case EnterBootloader:
SendByte(CommandReplyOK);
USB_Disable();
// Disable interrupts...
cli();
// Wait a little bit to let everything settle and let the program close the port after the USB disconnect
_delay_ms(2000);
// Now run the bootloader
__asm__ __volatile__ ( "jmp 0xE000" );
break;
case EnterProgrammer:
// Already in the programmer
SendByte(CommandReplyOK);
break;
default:
SendByte(CommandReplyInvalid);
break;