diff options
Diffstat (limited to 'Projects/AVRISP-MKII/Lib/ISP')
| -rw-r--r-- | Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c b/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c index a16504da1..430772ddc 100644 --- a/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c +++ b/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c @@ -227,8 +227,18 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command) PollAddress = (CurrentAddress & 0xFFFF); } - if (IsOddByte || (V2Command == CMD_PROGRAM_EEPROM_ISP)) - CurrentAddress++; + /* EEPROM just increments the address each byte, flash needs to increment on each word and + * also check to ensure that a LOAD EXTENDED ADDRESS command is issued each time the extended + * address boundary has been crossed */ + if (V2Command == CMD_PROGRAM_EEPROM_ISP) + { + CurrentAddress++; + } + else if (IsOddByte) + { + if (!(++CurrentAddress & 0xFFFF)) + ISPTarget_LoadExtendedAddress(); + } } /* If the current page must be committed, send the PROGRAM PAGE command to the target */ @@ -276,8 +286,18 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command) PollAddress = (CurrentAddress & 0xFFFF); } - if (IsOddByte || (V2Command == CMD_PROGRAM_EEPROM_ISP)) - CurrentAddress++; + /* EEPROM just increments the address each byte, flash needs to increment on each word and + * also check to ensure that a LOAD EXTENDED ADDRESS command is issued each time the extended + * address boundary has been crossed */ + if (V2Command == CMD_PROGRAM_EEPROM_ISP) + { + CurrentAddress++; + } + else if (IsOddByte) + { + if (!(++CurrentAddress & 0xFFFF)) + ISPTarget_LoadExtendedAddress(); + } ProgrammingStatus = ISPTarget_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue, Write_Memory_Params.DelayMS, Write_Memory_Params.ProgrammingCommands[2]); @@ -346,11 +366,19 @@ void ISPProtocol_ReadMemory(uint8_t V2Command) * or low byte at the current word address */ if (V2Command == CMD_READ_FLASH_ISP) Read_Memory_Params.ReadMemoryCommand ^= READ_WRITE_HIGH_BYTE_MASK; - - /* Only increment the current address if we have read both bytes in the current word when in FLASH - * read mode, or for each byte when in EEPROM read mode */ - if (((CurrentByte & 0x01) && (V2Command == CMD_READ_FLASH_ISP)) || (V2Command == CMD_READ_EEPROM_ISP)) - CurrentAddress++; + + /* EEPROM just increments the address each byte, flash needs to increment on each word and + * also check to ensure that a LOAD EXTENDED ADDRESS command is issued each time the extended + * address boundary has been crossed */ + if (V2Command == CMD_READ_EEPROM_ISP) + { + CurrentAddress++; + } + else if (CurrentByte & 0x01) + { + if (!(++CurrentAddress & 0xFFFF)) + ISPTarget_LoadExtendedAddress(); + } } Endpoint_Write_Byte(STATUS_CMD_OK); |