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Fixed AVRISP project sending a LOAD EXTENDED ADDRESS command to 128KB AVRs after programming or reading from the last page of FLASH.

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This commit is contained in:
Dean Camera 2010-05-14 10:11:40 +00:00
parent 6b7770ef2b
commit 80d85090ba
6 changed files with 58 additions and 62 deletions
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65
Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c
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@ -186,22 +186,18 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command)
Write_Memory_Params.PollValue2;
uint8_t* NextWriteByte = Write_Memory_Params.ProgData;
/* Check to see if the host has issued a SET ADDRESS command and we haven't sent a
* LOAD EXTENDED ADDRESS command (if needed, used when operating beyond the 128KB
* FLASH barrier) */
if (MustSetAddress)
{
if (CurrentAddress & (1UL << 31))
ISPTarget_LoadExtendedAddress();
MustSetAddress = false;
}
/* Check the programming mode desired by the host, either Paged or Word memory writes */
if (Write_Memory_Params.ProgrammingMode & PROG_MODE_PAGED_WRITES_MASK)
{
uint16_t StartAddress = (CurrentAddress & 0xFFFF);
/* Check to see if we need to send a LOAD EXTENDED ADDRESS command to the target */
if (MustLoadExtendedAddress)
{
ISPTarget_LoadExtendedAddress();
MustLoadExtendedAddress = false;
}
/* Paged mode memory programming */
for (uint16_t CurrentByte = 0; CurrentByte < Write_Memory_Params.BytesToWrite; CurrentByte++)
{
@ -252,7 +248,7 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command)
/* Check to see if the FLASH address has crossed the extended address boundary */
if ((V2Command == CMD_PROGRAM_FLASH_ISP) && !(CurrentAddress & 0xFFFF))
ISPTarget_LoadExtendedAddress();
MustLoadExtendedAddress = true;
}
}
else
@ -263,6 +259,13 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command)
bool IsOddByte = (CurrentByte & 0x01);
uint8_t ByteToWrite = *(NextWriteByte++);
/* Check to see if we need to send a LOAD EXTENDED ADDRESS command to the target */
if (MustLoadExtendedAddress)
{
ISPTarget_LoadExtendedAddress();
MustLoadExtendedAddress = false;
}
SPI_SendByte(Write_Memory_Params.ProgrammingCommands[0]);
SPI_SendByte(CurrentAddress >> 8);
SPI_SendByte(CurrentAddress & 0xFF);
@ -291,14 +294,12 @@ void ISPProtocol_ProgramMemory(uint8_t V2Command)
/* 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)
if ((CurrentByte & 0x01) || (V2Command == CMD_PROGRAM_EEPROM_ISP))
{
CurrentAddress++;
}
else if (IsOddByte)
{
if (!(++CurrentAddress & 0xFFFF))
ISPTarget_LoadExtendedAddress();
if ((V2Command != CMD_PROGRAM_EEPROM_ISP) && !(CurrentAddress & 0xFFFF))
MustLoadExtendedAddress = true;
}
}
}
@ -330,21 +331,17 @@ void ISPProtocol_ReadMemory(uint8_t V2Command)
Endpoint_Write_Byte(V2Command);
Endpoint_Write_Byte(STATUS_CMD_OK);
/* Check to see if the host has issued a SET ADDRESS command and we haven't sent a
* LOAD EXTENDED ADDRESS command (if needed, used when operating beyond the 128KB
* FLASH barrier) */
if (MustSetAddress)
{
if (CurrentAddress & (1UL << 31))
ISPTarget_LoadExtendedAddress();
MustSetAddress = false;
}
/* Read each byte from the device and write them to the packet for the host */
for (uint16_t CurrentByte = 0; CurrentByte < Read_Memory_Params.BytesToRead; CurrentByte++)
{
/* Check to see if we need to send a LOAD EXTENDED ADDRESS command to the target */
if (MustLoadExtendedAddress)
{
ISPTarget_LoadExtendedAddress();
MustLoadExtendedAddress = false;
}
/* Read the next byte from the desired memory space in the device */
SPI_SendByte(Read_Memory_Params.ReadMemoryCommand);
SPI_SendByte(CurrentAddress >> 8);
@ -366,14 +363,12 @@ void ISPProtocol_ReadMemory(uint8_t V2Command)
/* 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)
if ((CurrentByte & 0x01) || (V2Command == CMD_READ_EEPROM_ISP))
{
CurrentAddress++;
}
else if (CurrentByte & 0x01)
{
if (!(++CurrentAddress & 0xFFFF))
ISPTarget_LoadExtendedAddress();
if ((V2Command != CMD_READ_EEPROM_ISP) && !(CurrentAddress & 0xFFFF))
MustLoadExtendedAddress = true;
}
}