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Fix NVM commands so that memory reads and CRC generations now work correctly using unoptimized PDI commands.

This commit is contained in:
Dean Camera 2009-12-14 04:39:16 +00:00
parent 1fa27139f5
commit 8a55d80e7e
3 changed files with 108 additions and 44 deletions
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49
Projects/AVRISP/Lib/NVMTarget.c
View File

@ -42,10 +42,18 @@ void NVMTarget_SendNVMRegAddress(uint8_t Register)
{
uint32_t Address = XPROG_Param_NVMBase | Register;
PDITarget_SendByte(Address >> 24);
PDITarget_SendByte(Address >> 26);
PDITarget_SendByte(Address >> 8);
PDITarget_SendByte(Address & 0xFF);
PDITarget_SendByte(Address >> 8);
PDITarget_SendByte(Address >> 16);
PDITarget_SendByte(Address >> 24);
}
void NVMTarget_SendAddress(uint32_t AbsoluteAddress)
{
PDITarget_SendByte(AbsoluteAddress & 0xFF);
PDITarget_SendByte(AbsoluteAddress >> 8);
PDITarget_SendByte(AbsoluteAddress >> 16);
PDITarget_SendByte(AbsoluteAddress >> 24);
}
bool NVMTarget_WaitWhileNVMBusBusy(void)
@ -68,7 +76,7 @@ void NVMTarget_WaitWhileNVMControllerBusy(void)
/* Poll the NVM STATUS register while the NVM controller is busy */
for (;;)
{
PDITarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_1BYTE << 2));
PDITarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_STATUS);
if (!(PDITarget_ReceiveByte() & (1 << 7)))
@ -80,13 +88,15 @@ uint32_t NVMTarget_GetMemoryCRC(uint8_t MemoryCommand)
{
uint32_t MemoryCRC;
NVMTarget_WaitWhileNVMControllerBusy();
/* Set the NVM command to the correct CRC read command */
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_1BYTE << 2));
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_CMD);
PDITarget_SendByte(MemoryCommand);
/* Set CMDEX bit in NVM CTRLA register to start the CRC generation */
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_1BYTE << 2));
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_CTRLA);
PDITarget_SendByte(1 << 0);
@ -94,14 +104,37 @@ uint32_t NVMTarget_GetMemoryCRC(uint8_t MemoryCommand)
NVMTarget_WaitWhileNVMBusBusy();
NVMTarget_WaitWhileNVMControllerBusy();
/* Read the three byte generated CRC value */
PDITarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_3BYTES << 2));
/* Read the three bytes generated CRC value */
PDITarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_DAT0);
MemoryCRC = PDITarget_ReceiveByte();
PDITarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_DAT1);
MemoryCRC |= ((uint16_t)PDITarget_ReceiveByte() << 8);
PDITarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_DAT2);
MemoryCRC |= ((uint32_t)PDITarget_ReceiveByte() << 16);
return MemoryCRC;
}
void NVMTarget_ReadMemory(uint32_t ReadAddress, uint8_t* ReadBuffer, uint16_t ReadSize)
{
NVMTarget_WaitWhileNVMControllerBusy();
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_CMD);
PDITarget_SendByte(NVM_CMD_READNVM);
/* TODO: Optimize via REPEAT and buffer orientated commands */
for (uint16_t i = 0; i < ReadSize; i++)
{
PDITarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_4BYTES << 2));
NVMTarget_SendAddress(ReadAddress++);
*(ReadBuffer++) = PDITarget_ReceiveByte();
}
}
#endif

35
Projects/AVRISP/Lib/NVMTarget.h
View File

@ -76,15 +76,46 @@
#define NVM_REG_STATUS 0x0F
#define NVM_REG_LOCKBITS 0x10
#define NVM_CMD_APPCRC 0x38
#define NVM_CMD_BOOTCRC 0x39
#define NVM_CMD_NOOP 0x00
#define NVM_CMD_CHIPERASE 0x40
#define NVM_CMD_READNVM 0x43
#define NVM_CMD_LOADFLASHBUFF 0x23
#define NVM_CMD_ERASEFLASHBUFF 0x26
#define NVM_CMD_ERASEFLASHPAGE 0x2B
#define NVM_CMD_FLASHPAGEWRITE 0x2E
#define NVM_CMD_ERASEWRITEFLASH 0x2F
#define NVM_CMD_FLASHCRC 0x78
#define NVM_CMD_ERASEAPPSEC 0x20
#define NVM_CMD_ERASEAPPSECPAGE 0x22
#define NVM_CMD_WRITEAPPSECPAGE 0x24
#define NVM_CMD_ERASEWRITEAPPSECPAGE 0x25
#define NVM_CMD_APPCRC 0x38
#define NVM_CMD_ERASEBOOTSEC 0x68
#define NVM_CMD_ERASEBOOTSECPAGE 0x2A
#define NVM_CMD_WRITEBOOTSECPAGE 0x2C
#define NVM_CMD_ERASEWRITEBOOTSECPAGE 0x2D
#define NVM_CMD_BOOTCRC 0x39
#define NVM_CMD_READUSERSIG 0x03
#define NVM_CMD_ERASEUSERSIG 0x18
#define NVM_CMD_WRITEUSERSIG 0x1A
#define NVM_CMD_READCALIBRATION 0x02
#define NVM_CMD_READFUSE 0x07
#define NVM_CMD_WRITEFUSE 0x4C
#define NVM_CMD_WRITELOCK 0x08
#define NVM_CMD_LOADEEPROMPAGEBUFF 0x33
#define NVM_CMD_ERASEEEPROMPAGEBUFF 0x36
#define NVM_CMD_ERASEEEPROM 0x30
#define NVM_CMD_ERASEEEPROMPAGE 0x32
#define NVM_CMD_WRITEEEPROMPAGE 0x34
#define NVM_CMD_ERASEWRITEEEPROMPAGE 0x35
#define NVM_CMD_READEEPROM 0x06
/* Function Prototypes: */
void NVMTarget_SendNVMRegAddress(uint8_t Register);
void NVMTarget_SendAddress(uint32_t AbsoluteAddress);
bool NVMTarget_WaitWhileNVMBusBusy(void);
void NVMTarget_WaitWhileNVMControllerBusy(void);
uint32_t NVMTarget_GetMemoryCRC(uint8_t MemoryCommand);
void NVMTarget_ReadMemory(uint32_t ReadAddress, uint8_t* ReadBuffer, uint16_t ReadSize);
#endif

22
Projects/AVRISP/Lib/PDIProtocol.c
View File

@ -217,19 +217,16 @@ static void PDIProtocol_ReadMemory(void)
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
if (ReadMemory_XPROG_Params.MemoryType == XPRG_MEM_TYPE_USERSIG)
{
PDITarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_1BYTE << 2));
NVMTarget_SendNVMRegAddress(NVM_REG_CMD);
PDITarget_SendByte(NVM_CMD_READUSERSIG);
// TODO
}
uint8_t ReadBuffer[ReadMemory_XPROG_Params.Length];
NVMTarget_ReadMemory(ReadMemory_XPROG_Params.Address, ReadBuffer, ReadMemory_XPROG_Params.Length);
Endpoint_Write_Byte(CMD_XPROG);
Endpoint_Write_Byte(XPRG_CMD_READ_MEM);
Endpoint_Write_Byte(ReturnStatus);
if (ReturnStatus == XPRG_ERR_OK)
Endpoint_Write_Stream_LE(ReadBuffer, ReadMemory_XPROG_Params.Length);
Endpoint_ClearIN();
}
@ -250,13 +247,16 @@ static void PDIProtocol_ReadCRC(void)
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
uint32_t MemoryCRC;
uint8_t CRCCommand;
if (ReadCRC_XPROG_Params.CRCType == XPRG_CRC_APP)
MemoryCRC = NVMTarget_GetMemoryCRC(NVM_CMD_APPCRC);
CRCCommand = NVM_CMD_APPCRC;
else if (ReadCRC_XPROG_Params.CRCType == XPRG_CRC_BOOT)
MemoryCRC = NVMTarget_GetMemoryCRC(NVM_CMD_BOOTCRC);
CRCCommand = NVM_CMD_BOOTCRC;
else
MemoryCRC = NVMTarget_GetMemoryCRC(NVM_CMD_FLASHCRC);
CRCCommand = NVM_CMD_FLASHCRC;
MemoryCRC = NVMTarget_GetMemoryCRC(CRCCommand);
Endpoint_Write_Byte(CMD_XPROG);
Endpoint_Write_Byte(XPRG_CMD_CRC);