Fixed broken FLASH/EEPROM programming in the AVRISP-MKII clone project when writing in non-paged mode and the polling byte cannot be used.

LUFA/ManPages/ChangeLog.txt

@@ -67,6 +67,7 @@
   *  - Fixed BootloaderCDC project failing on some operating systems due to removed Line Encoding options (thanks to Alexey Belyaev)
   *  - Fixed incorrect LEDs_ChangeLEDs() function in the Benito board LED driver
   *  - Fixed incorrect USB_DeviceState value when unconfiguring the device without an address set
+  *  - Fixed broken FLASH/EEPROM programming in the AVRISP-MKII clone project when writing in non-paged mode and the polling byte cannot be used
   *
   *  \section Sec_ChangeLog100807 Version 100807
   *  <b>New:</b>

Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c

@@ -236,8 +236,8 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command)
 			ISPTarget_SendByte(StartAddress & 0xFF);
 			ISPTarget_SendByte(0x00);
 			
-			/* Check if polling is possible, if not switch to timed delay mode */
+			/* Check if polling is possible and enabled, if not switch to timed delay mode */
-			if (!(PollAddress))
+			if (!(PollAddress) && (Write_Memory_Params.ProgrammingMode & PROG_MODE_PAGED_VALUE_MASK))
 			{
 				Write_Memory_Params.ProgrammingMode &= ~PROG_MODE_PAGED_VALUE_MASK;
 				Write_Memory_Params.ProgrammingMode |=  PROG_MODE_PAGED_TIMEDELAY_MASK;				
@@ -276,6 +276,9 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command)
 			if (V2Command == CMD_PROGRAM_FLASH_ISP)
 			  Write_Memory_Params.ProgrammingCommands[0] ^= READ_WRITE_HIGH_BYTE_MASK;
 			
+			/* Save previous programming mode in case we modify it for the current word */
+			uint8_t PreviousProgrammingMode = Write_Memory_Params.ProgrammingMode;
+
 			if (ByteToWrite != PollValue)
 			{
 				if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))
@@ -283,10 +286,18 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command)
 				  
 				PollAddress = (CurrentAddress & 0xFFFF);
 			}
+			else if (!(Write_Memory_Params.ProgrammingMode & PROG_MODE_WORD_READYBUSY_MASK))
+			{
+				Write_Memory_Params.ProgrammingMode &= ~PROG_MODE_WORD_VALUE_MASK;
+				Write_Memory_Params.ProgrammingMode |=  PROG_MODE_WORD_TIMEDELAY_MASK;				
+			}
 			
 			ProgrammingStatus = ISPTarget_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue,
 			                                                  Write_Memory_Params.DelayMS, Write_Memory_Params.ProgrammingCommands[2]);
 			  
+			/* Restore previous programming mode mask in case the current word needed to change it */
+			Write_Memory_Params.ProgrammingMode = PreviousProgrammingMode;
+
 			/* Abort the programming loop early if the byte/word programming failed */
 			if (ProgrammingStatus != STATUS_CMD_OK)
 			  break;