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| author | Dean Camera <dean@fourwalledcubicle.com> | 2009-12-11 04:56:52 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2009-12-11 04:56:52 +0000 |
| commit | 33a46b243a0f204f3ade095f7b213d9d2598c450 (patch) | |
| tree | 9544bc254f3ed99786cccce0ee4ccf9cecd182cf /Projects/AVRISP/Lib/PDIProtocol.c | |
| parent | 66201a05e9d5793880b27519affff7132f6630ea (diff) | |
| download | lufa-33a46b243a0f204f3ade095f7b213d9d2598c450.tar.gz lufa-33a46b243a0f204f3ade095f7b213d9d2598c450.tar.bz2 lufa-33a46b243a0f204f3ade095f7b213d9d2598c450.zip | |
PDI NVM enable is fast enough that bare polling is enough without a fixed delay in between each attempt. Make sure the USART transmitter is enabled explicitly when the USART is configured, so that repeated attempts to re-enter PDI mode don't fail due to TXEN not being set.
Diffstat (limited to 'Projects/AVRISP/Lib/PDIProtocol.c')
| -rw-r--r-- | Projects/AVRISP/Lib/PDIProtocol.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/Projects/AVRISP/Lib/PDIProtocol.c b/Projects/AVRISP/Lib/PDIProtocol.c index 32a74c586..2107e2b89 100644 --- a/Projects/AVRISP/Lib/PDIProtocol.c +++ b/Projects/AVRISP/Lib/PDIProtocol.c @@ -115,11 +115,9 @@ static void PDIProtocol_EnterXPROGMode(void) PDITarget_SendByte(PDI_NVMENABLE_KEY[i - 1]);
/* Poll the STATUS register to check to see if NVM access has been enabled */
- uint8_t NVMAttemptsRemaining = 150;
+ uint8_t NVMAttemptsRemaining = 255;
while (NVMAttemptsRemaining)
{
- _delay_ms(1);
-
PDITarget_SendByte(PDI_CMD_LDCS | PD_STATUS_REG);
if (PDITarget_ReceiveByte() & PDI_STATUS_NVM)
break;
|