Commit f070902b authored by Dean Camera's avatar Dean Camera
Browse files

Fix endianness of LOAD_ADDRESS command data, add correct...

Fix endianness of LOAD_ADDRESS command data, add correct PROGRAM_FLASH_ISP/PROGRAM_EEPROM_ISP polling and endpoint bank clearing, add hardware delays/timeouts to the V2 Protocol handler in the AVRISP project.
parent 8cb8f1cf
......@@ -158,7 +158,7 @@ static void V2Protocol_Command_GetSetParam(uint8_t V2Command)
static void V2Protocol_Command_LoadAddress(void)
{
Endpoint_Read_Stream_LE(&CurrentAddress, sizeof(CurrentAddress));
Endpoint_Read_Stream_BE(&CurrentAddress, sizeof(CurrentAddress));
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
......@@ -282,14 +282,16 @@ static void V2Protocol_Command_ProgramMemory(uint8_t V2Command)
if (Write_Memory_Params.ProgrammingMode & PROG_MODE_PAGED_WRITES_MASK)
{
uint16_t StartAddress = (CurrentAddress & 0xFFFF);
/* Paged mode memory programming */
for (uint16_t CurrentByte = 0; CurrentByte < Write_Memory_Params.BytesToWrite; CurrentByte++)
{
bool IsOddByte = (CurrentByte & 0x01);
uint8_t ByteToWrite = Endpoint_Read_Byte();
if ((V2Command == CMD_READ_FLASH_ISP) && IsOddByte)
Write_Memory_Params.ProgrammingCommands[0] ^= READ_WRITE_ODD_BYTE_MASK;
if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))
Write_Memory_Params.ProgrammingCommands[0] ^= READ_WRITE_HIGH_BYTE_MASK;
SPI_SendByte(Write_Memory_Params.ProgrammingCommands[0]);
SPI_SendByte(CurrentAddress >> 8);
......@@ -298,11 +300,18 @@ static void V2Protocol_Command_ProgramMemory(uint8_t V2Command)
if (!(PollAddress) && (ByteToWrite != PollValue))
{
if (V2Command == CMD_PROGRAM_FLASH_ISP)
PollAddress = (((CurrentAddress & 0xFFFF) << 1) | IsOddByte);
else
PollAddress = (CurrentAddress & 0xFFFF);
if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))
Write_Memory_Params.ProgrammingCommands[2] |= READ_WRITE_HIGH_BYTE_MASK;
PollAddress = (CurrentAddress & 0xFFFF);
}
/* Check if the endpoint bank is currently empty */
if (!(Endpoint_IsReadWriteAllowed()))
{
Endpoint_ClearOUT();
Endpoint_WaitUntilReady();
}
if (IsOddByte || (V2Command == CMD_PROGRAM_EEPROM_ISP))
CurrentAddress++;
......@@ -312,8 +321,8 @@ static void V2Protocol_Command_ProgramMemory(uint8_t V2Command)
if (Write_Memory_Params.ProgrammingMode & PROG_MODE_COMMIT_PAGE_MASK)
{
SPI_SendByte(Write_Memory_Params.ProgrammingCommands[1]);
SPI_SendByte(CurrentAddress >> 8);
SPI_SendByte(CurrentAddress & 0xFF);
SPI_SendByte(StartAddress >> 8);
SPI_SendByte(StartAddress & 0xFF);
SPI_SendByte(0x00);
/* Check if polling is possible, if not switch to timed delay mode */
......@@ -322,11 +331,10 @@ static void V2Protocol_Command_ProgramMemory(uint8_t V2Command)
Write_Memory_Params.ProgrammingMode &= ~PROG_MODE_PAGED_VALUE_MASK;
Write_Memory_Params.ProgrammingMode &= ~PROG_MODE_PAGED_TIMEDELAY_MASK;
}
ProgrammingStatus = V2Protocol_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue,
Write_Memory_Params.DelayMS, Write_Memory_Params.ProgrammingCommands[2]);
}
ProgrammingStatus = V2Protocol_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue,
Write_Memory_Params.DelayMS, (V2Command == CMD_READ_FLASH_ISP),
Write_Memory_Params.ProgrammingCommands[2]);
}
else
{
......@@ -336,8 +344,8 @@ static void V2Protocol_Command_ProgramMemory(uint8_t V2Command)
bool IsOddByte = (CurrentByte & 0x01);
uint8_t ByteToWrite = Endpoint_Read_Byte();
if ((V2Command == CMD_READ_FLASH_ISP) && IsOddByte)
Write_Memory_Params.ProgrammingCommands[0] ^= READ_WRITE_ODD_BYTE_MASK;
if (IsOddByte && (V2Command == CMD_READ_FLASH_ISP))
Write_Memory_Params.ProgrammingCommands[0] ^= READ_WRITE_HIGH_BYTE_MASK;
SPI_SendByte(Write_Memory_Params.ProgrammingCommands[0]);
SPI_SendByte(CurrentAddress >> 8);
......@@ -346,18 +354,24 @@ static void V2Protocol_Command_ProgramMemory(uint8_t V2Command)
if (ByteToWrite != PollValue)
{
if (V2Command == CMD_PROGRAM_FLASH_ISP)
PollAddress = (((CurrentAddress & 0xFFFF) << 1) | IsOddByte);
else
PollAddress = (CurrentAddress & 0xFFFF);
if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))
Write_Memory_Params.ProgrammingCommands[2] |= READ_WRITE_HIGH_BYTE_MASK;
PollAddress = (CurrentAddress & 0xFFFF);
}
/* Check if the endpoint bank is currently empty */
if (!(Endpoint_IsReadWriteAllowed()))
{
Endpoint_ClearOUT();
Endpoint_WaitUntilReady();
}
if (IsOddByte || (V2Command == CMD_PROGRAM_EEPROM_ISP))
CurrentAddress++;
ProgrammingStatus = V2Protocol_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue,
Write_Memory_Params.DelayMS, (V2Command == CMD_READ_FLASH_ISP),
Write_Memory_Params.ProgrammingCommands[2]);
Write_Memory_Params.DelayMS, Write_Memory_Params.ProgrammingCommands[2]);
if (ProgrammingStatus != STATUS_CMD_OK)
break;
......@@ -393,7 +407,7 @@ static void V2Protocol_Command_ReadMemory(uint8_t V2Command)
for (uint16_t CurrentByte = 0; CurrentByte < Read_Memory_Params.BytesToRead; CurrentByte++)
{
if ((V2Command == CMD_READ_FLASH_ISP) && (CurrentByte & 0x01))
Read_Memory_Params.ReadMemoryCommand ^= READ_WRITE_ODD_BYTE_MASK;
Read_Memory_Params.ReadMemoryCommand ^= READ_WRITE_HIGH_BYTE_MASK;
SPI_SendByte(Read_Memory_Params.ReadMemoryCommand);
SPI_SendByte(CurrentAddress >> 8);
......
......@@ -47,7 +47,7 @@
/* Macros: */
#define PROGRAMMER_ID "AVRISP_MK2"
#define READ_WRITE_ODD_BYTE_MASK (1 << 3)
#define READ_WRITE_HIGH_BYTE_MASK (1 << 3)
#define PROG_MODE_PAGED_WRITES_MASK (1 << 0)
#define PROG_MODE_WORD_TIMEDELAY_MASK (1 << 1)
......
......@@ -83,7 +83,7 @@ void V2Protocol_DelayMS(uint8_t MS)
}
uint8_t V2Protocol_WaitForProgComplete(uint8_t ProgrammingMode, uint16_t PollAddress, uint8_t PollValue,
uint8_t DelayMS, bool IsFlashMemory, uint8_t ReadMemCommand)
uint8_t DelayMS, uint8_t ReadMemCommand)
{
uint8_t ProgrammingStatus = STATUS_CMD_OK;
......@@ -96,12 +96,6 @@ uint8_t V2Protocol_WaitForProgComplete(uint8_t ProgrammingMode, uint16_t PollAdd
break;
case PROG_MODE_WORD_VALUE_MASK:
case PROG_MODE_PAGED_VALUE_MASK:
if (IsFlashMemory && (PollAddress & 0x01))
{
ReadMemCommand |= READ_WRITE_ODD_BYTE_MASK;
PollAddress >>= 1;
}
TCNT0 = 0;
do
......@@ -119,6 +113,7 @@ uint8_t V2Protocol_WaitForProgComplete(uint8_t ProgrammingMode, uint16_t PollAdd
case PROG_MODE_WORD_READYBUSY_MASK:
case PROG_MODE_PAGED_READYBUSY_MASK:
ProgrammingStatus = V2Protocol_WaitWhileTargetBusy();
break;
}
return ProgrammingStatus;
......@@ -126,8 +121,6 @@ uint8_t V2Protocol_WaitForProgComplete(uint8_t ProgrammingMode, uint16_t PollAdd
uint8_t V2Protocol_WaitWhileTargetBusy(void)
{
uint8_t ResponseByte;
TCNT0 = 0;
do
......@@ -136,9 +129,8 @@ uint8_t V2Protocol_WaitWhileTargetBusy(void)
SPI_SendByte(0x00);
SPI_SendByte(0x00);
ResponseByte = SPI_ReceiveByte();
}
while ((ResponseByte & 0x01) && (TCNT0 < TARGET_BUSY_TIMEOUT_MS));
while ((SPI_ReceiveByte() & 0x01) && (TCNT0 < TARGET_BUSY_TIMEOUT_MS));
if (TCNT0 >= TARGET_BUSY_TIMEOUT_MS)
return STATUS_RDY_BSY_TOUT;
......
......@@ -48,7 +48,7 @@
#include "V2ProtocolParams.h"
/* Macros: */
#define TARGET_BUSY_TIMEOUT_MS 200
#define TARGET_BUSY_TIMEOUT_MS 150
/* External Variables: */
extern uint32_t CurrentAddress;
......@@ -58,7 +58,7 @@
void V2Protocol_ChangeTargetResetLine(bool ResetTarget);
void V2Protocol_DelayMS(uint8_t MS);
uint8_t V2Protocol_WaitForProgComplete(uint8_t ProgrammingMode, uint16_t PollAddress, uint8_t PollValue,
uint8_t DelayMS, bool IsFlashMemory, uint8_t ReadMemCommand);
uint8_t DelayMS, uint8_t ReadMemCommand);
uint8_t V2Protocol_WaitWhileTargetBusy(void);
void V2Protocol_LoadExtendedAddress(void);
......
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