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AVRISP programmer project now has a more robust timeout system, allowing for a doubling of the software USART speed for PDI and TPI programming.

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This commit is contained in:
Dean Camera 2010-02-19 05:17:41 +00:00
parent 04d40897cf
commit ce8d0424b1
8 changed files with 122 additions and 66 deletions
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15
Projects/AVRISP-MKII/Lib/V2Protocol.c
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@ -42,14 +42,6 @@ uint32_t CurrentAddress;
/** Flag to indicate that the next read/write operation must update the device's current address */
bool MustSetAddress;
/** ISR for the management of the command execution timeout counter */
ISR(TIMER0_COMPA_vect, ISR_BLOCK)
{
if (TimeoutMSRemaining)
TimeoutMSRemaining--;
}
/** Initializes the hardware and software associated with the V2 protocol command handling. */
void V2Protocol_Init(void)
{
@ -76,10 +68,6 @@ void V2Protocol_ProcessCommand(void)
{
uint8_t V2Command = Endpoint_Read_Byte();
/* Set total command processing timeout value, enable timeout management interrupt */
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
TIMSK0 |= (1 << OCIE0A);
switch (V2Command)
{
case CMD_SIGN_ON:
@ -139,9 +127,6 @@ void V2Protocol_ProcessCommand(void)
V2Protocol_UnknownCommand(V2Command);
break;
}
/* Disable timeout management interrupt once processing has completed */
TIMSK0 &= ~(1 << OCIE0A);
Endpoint_WaitUntilReady();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_OUT);