X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/ab195ab1da1da75a3a23d47b56c66d14803a9de3..55db57e1ede3c44a3b027cb442fa12e969b37f4b:/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c

diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
index 267e51850..94f1c3d74 100644
--- a/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
+++ b/Projects/AVRISP-MKII/Lib/ISP/ISPTarget.c
@@ -111,7 +111,7 @@ void ISPTarget_ChangeTargetResetLine(const bool ResetTarget)
 uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint16_t PollAddress, const uint8_t PollValue,
                                       const uint8_t DelayMS, const uint8_t ReadMemCommand)
 {
-	uint8_t ProgrammingStatus = STATUS_CMD_OK;
+	uint8_t ProgrammingStatus  = STATUS_CMD_OK;
 
 	/* Determine method of Programming Complete check */
 	switch (ProgrammingMode & ~(PROG_MODE_PAGED_WRITES_MASK | PROG_MODE_COMMIT_PAGE_MASK))
@@ -124,6 +124,13 @@ uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint1
 		case PROG_MODE_PAGED_VALUE_MASK:
 			do
 			{
+				/* Manage software timeout */
+				if (TIFR0 & (1 << OCF0A))
+				{
+					TIFR0 |= (1 << OCF0A);
+					TimeoutMSRemaining--;
+				}
+
 				SPI_SendByte(ReadMemCommand);
 				SPI_SendByte(PollAddress >> 8);
 				SPI_SendByte(PollAddress & 0xFF);
@@ -139,7 +146,7 @@ uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint1
 			ProgrammingStatus = ISPTarget_WaitWhileTargetBusy();
 			break;
 	}
-	
+
 	if (ProgrammingStatus == STATUS_CMD_OK)
 	  TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
 
@@ -155,14 +162,28 @@ uint8_t ISPTarget_WaitWhileTargetBusy(void)
 {
 	do
 	{
+		/* Manage software timeout */
+		if (TIFR0 & (1 << OCF0A))
+		{
+			TIFR0 |= (1 << OCF0A);
+			TimeoutMSRemaining--;
+		}	
+
 		SPI_SendByte(0xF0);
 		SPI_SendByte(0x00);
-
 		SPI_SendByte(0x00);
 	}
 	while ((SPI_ReceiveByte() & 0x01) && TimeoutMSRemaining);
 
-	return ((TimeoutMSRemaining) ? STATUS_CMD_OK : STATUS_RDY_BSY_TOUT);
+	if (TimeoutMSRemaining)
+	{
+		TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
+		return STATUS_CMD_OK;
+	}
+	else
+	{
+		return STATUS_RDY_BSY_TOUT;
+	}
 }
 
 /** Sends a low-level LOAD EXTENDED ADDRESS command to the target, for addressing of memory beyond the