diff options
| author | Dean Camera <dean@fourwalledcubicle.com> | 2011-01-22 17:48:06 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2011-01-22 17:48:06 +0000 |
| commit | 26017b68b0632c91e71eb29e87ca94670425e081 (patch) | |
| tree | 111734f4a05e27e4cfb33779ab8d949388aaee4c /Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c | |
| parent | ef44b8c036daf4806a369dfdcd5adf72cf85b824 (diff) | |
| download | lufa-26017b68b0632c91e71eb29e87ca94670425e081.tar.gz lufa-26017b68b0632c91e71eb29e87ca94670425e081.tar.bz2 lufa-26017b68b0632c91e71eb29e87ca94670425e081.zip | |
Changed AVRISP-MKII project to use the Watchdog interrupt for command timeouts, to reduce CPU usage and free timer 0 for other uses in the future.
Diffstat (limited to 'Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c')
| -rw-r--r-- | Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c b/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c index 9a732dea2..27e1cc96c 100644 --- a/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c +++ b/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c @@ -68,15 +68,14 @@ void ISPProtocol_EnterISPMode(void) ISPProtocol_DelayMS(Enter_ISP_Params.ExecutionDelayMS); ISPTarget_EnableTargetISP(); + ISPTarget_ChangeTargetResetLine(true); + /* Continuously attempt to synchronize with the target until either the number of attempts specified * by the host has exceeded, or the the device sends back the expected response values */ - while (Enter_ISP_Params.SynchLoops-- && (ResponseStatus != STATUS_CMD_OK) && TimeoutTicksRemaining) + while (Enter_ISP_Params.SynchLoops-- && (ResponseStatus != STATUS_CMD_OK) && !(TimeoutExpired)) { uint8_t ResponseBytes[4]; - ISPTarget_ChangeTargetResetLine(true); - ISPProtocol_DelayMS(Enter_ISP_Params.PinStabDelayMS); - for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++) { ISPProtocol_DelayMS(Enter_ISP_Params.ByteDelay); @@ -92,6 +91,7 @@ void ISPProtocol_EnterISPMode(void) { ISPTarget_ChangeTargetResetLine(false); ISPProtocol_DelayMS(Enter_ISP_Params.PinStabDelayMS); + ISPTarget_ChangeTargetResetLine(true); } } @@ -509,7 +509,7 @@ void ISPProtocol_SPIMulti(void) */ void ISPProtocol_DelayMS(uint8_t DelayMS) { - while (DelayMS-- && TimeoutTicksRemaining) + while (DelayMS-- && !(TimeoutExpired)) _delay_ms(1); } |