ahoneybun/qmk_firmware
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

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.

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

58
Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c
View file

@ -328,15 +328,7 @@ uint8_t XPROGTarget_ReceiveByte(void)
#if defined(XPROG_VIA_HARDWARE_USART)
/* Wait until a byte has been received before reading */
while (!(UCSR1A & (1 << RXC1)) && TimeoutMSRemaining)
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (!(UCSR1A & (1 << RXC1)) && TimeoutMSRemaining);
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
@ -345,15 +337,7 @@ uint8_t XPROGTarget_ReceiveByte(void)
#else
/* Wait until a byte has been received before reading */
SoftUSART_BitCount = BITS_IN_USART_FRAME;
while (SoftUSART_BitCount && TimeoutMSRemaining)
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (SoftUSART_BitCount && TimeoutMSRemaining);
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
@ -402,14 +386,7 @@ static void XPROGTarget_SetTxMode(void)
IsSending = true;
#else
while (SoftUSART_BitCount && TimeoutMSRemaining)
{
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (SoftUSART_BitCount && TimeoutMSRemaining);
/* Wait for a full cycle of the clock */
SoftUSART_Data = 0x0001;
@ -443,14 +420,7 @@ static void XPROGTarget_SetRxMode(void)
DDRD &= ~(1 << 3);
PORTD &= ~(1 << 3);
#else
while (SoftUSART_BitCount && TimeoutMSRemaining)
{
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (SoftUSART_BitCount && TimeoutMSRemaining);
if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
{
@ -458,15 +428,7 @@ static void XPROGTarget_SetRxMode(void)
BITBANG_PDIDATA_PORT &= ~BITBANG_PDIDATA_MASK;
/* Wait until DATA line has been pulled up to idle by the target */
while (!(BITBANG_PDIDATA_PIN & BITBANG_PDIDATA_MASK) && TimeoutMSRemaining)
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (!(BITBANG_PDIDATA_PIN & BITBANG_PDIDATA_MASK) && TimeoutMSRemaining);
}
else
{
@ -474,15 +436,7 @@ static void XPROGTarget_SetRxMode(void)
BITBANG_TPIDATA_PORT &= ~BITBANG_TPIDATA_MASK;
/* Wait until DATA line has been pulled up to idle by the target */
while (!(BITBANG_TPIDATA_PIN & BITBANG_TPIDATA_MASK) && TimeoutMSRemaining)
{
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
{
TIFR0 |= (1 << OCF0A);
TimeoutMSRemaining--;
}
}
while (!(BITBANG_TPIDATA_PIN & BITBANG_TPIDATA_MASK) && TimeoutMSRemaining);
}
#endif