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Change AVRISP project's timeout to be interrupt based again, but make the interrupt itself interruptable and use a seperate assembly file to hand-optimize the ISR code.

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Removed the cast to uint16_t on the set baud rate in the USBtoSerial project, so that the higher >1M baud rates can be selected (thanks to Steffan).
This commit is contained in:
Dean Camera 2010-05-02 05:16:34 +00:00
parent 9a1560dc05
commit 3d28d53c3e
11 changed files with 66 additions and 117 deletions
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8
Projects/AVRISP-MKII/Lib/V2Protocol.c
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@ -42,6 +42,7 @@ uint32_t CurrentAddress;
/** Flag to indicate that the next read/write operation must update the device's current address */
bool MustSetAddress;
/** Initializes the hardware and software associated with the V2 protocol command handling. */
void V2Protocol_Init(void)
{
@ -55,7 +56,7 @@ void V2Protocol_Init(void)
/* Millisecond timer initialization for managing the command timeout counter */
OCR0A = ((F_CPU / 64) / 1000);
TCCR0A = (1 << WGM01);
TCCR0B = ((1 << CS01) | (1 << CS00));
TIMSK0 = (1 << OCIE0A);
V2Params_LoadNonVolatileParamValues();
}
@ -68,7 +69,9 @@ void V2Protocol_ProcessCommand(void)
{
uint8_t V2Command = Endpoint_Read_Byte();
/* Start the timeout management timer */
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
TCCR0B = ((1 << CS01) | (1 << CS00));
switch (V2Command)
{
@ -129,6 +132,9 @@ void V2Protocol_ProcessCommand(void)
V2Protocol_UnknownCommand(V2Command);
break;
}
/* Disable the timeout management timer */
TCCR0B = 0;
Endpoint_WaitUntilReady();
Endpoint_SelectEndpoint(AVRISP_DATA_OUT_EPNUM);