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More fixes to the AVRISP command timeout system so that it should no longer lock up while processing command no matter what the conditions.

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This commit is contained in:
Dean Camera
2010-02-21 06:26:33 +00:00
parent 12a01ed72d
commit e322f14620
8 changed files with 58 additions and 31 deletions
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12
Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c
View File

@@ -77,13 +77,15 @@ static void TINYNVM_SendWriteNVMRegister(const uint8_t Address)
bool TINYNVM_WaitWhileNVMBusBusy(void)
{
/* Poll the STATUS register to check to see if NVM access has been enabled */
uint8_t TimeoutMSRemaining = 100;
while (TimeoutMSRemaining)
{
/* Send the SLDCS command to read the TPI STATUS register to see the NVM bus is active */
XPROGTarget_SendByte(TPI_CMD_SLDCS | TPI_STATUS_REG);
if (XPROGTarget_ReceiveByte() & TPI_STATUS_NVM)
return true;
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
@@ -104,7 +106,6 @@ bool TINYNVM_WaitWhileNVMBusBusy(void)
bool TINYNVM_WaitWhileNVMControllerBusy(void)
{
/* Poll the STATUS register to check to see if NVM access has been enabled */
uint8_t TimeoutMSRemaining = 100;
while (TimeoutMSRemaining)
{
/* Send the SIN command to read the TPI STATUS register to see the NVM bus is busy */
@@ -112,7 +113,10 @@ bool TINYNVM_WaitWhileNVMControllerBusy(void)
/* Check to see if the BUSY flag is still set */
if (!(XPROGTarget_ReceiveByte() & (1 << 7)))
return true;
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))

12
Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c
View File

@@ -72,13 +72,15 @@ static void XMEGANVM_SendNVMRegAddress(const uint8_t Register)
bool XMEGANVM_WaitWhileNVMBusBusy(void)
{
/* Poll the STATUS register to check to see if NVM access has been enabled */
uint8_t TimeoutMSRemaining = 100;
while (TimeoutMSRemaining)
{
/* Send the LDCS command to read the PDI STATUS register to see the NVM bus is active */
XPROGTarget_SendByte(PDI_CMD_LDCS | PDI_STATUS_REG);
if (XPROGTarget_ReceiveByte() & PDI_STATUS_NVM)
return true;
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))
@@ -99,7 +101,6 @@ bool XMEGANVM_WaitWhileNVMBusBusy(void)
bool XMEGANVM_WaitWhileNVMControllerBusy(void)
{
/* Poll the NVM STATUS register while the NVM controller is busy */
uint8_t TimeoutMSRemaining = 100;
while (TimeoutMSRemaining)
{
/* Send a LDS command to read the NVM STATUS register to check the BUSY flag */
@@ -108,7 +109,10 @@ bool XMEGANVM_WaitWhileNVMControllerBusy(void)
/* Check to see if the BUSY flag is still set */
if (!(XPROGTarget_ReceiveByte() & (1 << 7)))
return true;
{
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
return true;
}
/* Manage software timeout */
if (TIFR0 & (1 << OCF0A))

9
Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c
View File

@@ -350,7 +350,6 @@ uint8_t XPROGTarget_ReceiveByte(void)
#if defined(XPROG_VIA_HARDWARE_USART)
/* Wait until a byte has been received before reading */
uint8_t TimeoutMSRemaining = 100;
while (!(UCSR1A & (1 << RXC1)) && TimeoutMSRemaining)
{
/* Manage software timeout */
@@ -365,7 +364,6 @@ uint8_t XPROGTarget_ReceiveByte(void)
#else
/* Wait until a byte has been received before reading */
SoftUSART_BitCount = BITS_IN_USART_FRAME;
uint8_t TimeoutMSRemaining = 100;
while (SoftUSART_BitCount && TimeoutMSRemaining)
{
/* Manage software timeout */
@@ -376,6 +374,9 @@ uint8_t XPROGTarget_ReceiveByte(void)
}
}
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
/* Throw away the parity and stop bits to leave only the data (start bit is already discarded) */
return (uint8_t)SoftUSART_Data;
#endif
@@ -468,7 +469,6 @@ static void XPROGTarget_SetRxMode(void)
}
/* Wait until DATA line has been pulled up to idle by the target */
uint8_t TimeoutMSRemaining = 100;
while (!(BITBANG_PDIDATA_PIN & BITBANG_PDIDATA_MASK) && TimeoutMSRemaining)
{
/* Manage software timeout */
@@ -480,6 +480,9 @@ static void XPROGTarget_SetRxMode(void)
}
#endif
if (TimeoutMSRemaining)
TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
IsSending = false;
}