Other Parts Discussed in Thread: C2000WARE
Hello TI Team,
I am currently working on programming data into a specific flash bank (Bank 1) on an F28P65x device using the Flash API v3.00.02.00.
I am able to successfully erase and program the flash sector at the following address:
FLASH_BANK1_START_ADDR 0x0A0000U" Flash Bank 1
However, I’ve observed a repeatable issue when programming more than 17 bytes of data.
#define FLASH_BANK0_START_ADDR 0x080000U
#define FLASH_BANK1_START_ADDR 0x0A0000U
#define FLASH_BANK2_START_ADDR 0x0C0000U
#define FLASH_BANK3_START_ADDR 0x0E0000U
#define FLASH_BANK4_START_ADDR 0x100000U
#define VIN_FLASH_ADDR FLASH_BANK1_START_ADDR
#define VIN_SECTOR_SIZE 0x0800U // 2 KB sector
#define VIN_LEN_BYTES 17U // VIN length
#define VIN_PAYLOAD_BYTES 24U // padded to 8-byte multiple
#define VIN_PAYLOAD_WORDS 12U // 24 / 2
#define VIN_MAX_HALFWORDS (VIN_PAYLOAD_BYTES / 2U)
#define FSM_STATUS_SUCCESS (0x3U)status = Fapi_doVerify(dest, 4U, (uint32_t *)&vin_buf[i], &flashStatusWord);,but when i comment this Fapi_doverify,i m able to write into the sector but upto 16-Bytes data (8-Word).
Note: 1.Why does the following verify call fail every time when I try to program more than 16 bytes (for example, 17 or 24 bytes)?
2.What is the maximum number of bytes (or halfwords) that can be programmed into a flash sector in a single call to
Fapi_issueProgrammingCommand() on the F28P65x device? 3.Is it possible to perform firmware update (in-application programming) using Flash API v3.00.02.00 on F28P65x? via CAN.
Fapi_StatusType VIN_ProgramUsingAutoECC(const uint8_t *vin_bytes)
{
Fapi_StatusType status = Fapi_Status_Success;
Fapi_FlashStatusWordType flashStatusWord;
Fapi_FlashStatusType fsmStatus;
uint16_t vin_buf[VIN_PAYLOAD_WORDS + 8] __attribute__((aligned(8)));
uint16_t i;
uint32_t prog_halfwords;
memset(vin_buf, 0xFF, sizeof(vin_buf));
for (i = 0; i < VIN_LEN_BYTES; i += 2U) {
uint16_t lo = vin_bytes[i];
uint16_t hi = (i + 1U < VIN_LEN_BYTES) ? vin_bytes[i + 1U] : 0xFFU;
vin_buf[i / 2U] = (uint16_t)((hi << 8) | lo);
}
/* 2) pad to 4-halfword (8-byte) boundary */
prog_halfwords = VIN_WORDS_16BIT;
IPC_claimFlashSemaphore(IPC_FLASHSEM_OWNER_CPU1);
status = Fapi_setActiveFlashBank(Fapi_FlashBank1);
if (status != Fapi_Status_Success) {
printf("[VIN] Bank select failed: %d\n", status);
IPC_releaseFlashSemaphore();
return status;
}
Flash_disablePrefetch(FLASH0CTRL_BASE);
Flash_disableCache(FLASH0CTRL_BASE);
ClearFSMStatus();
Fapi_setupBankSectorEnable(FLASH_WRAPPER_PROGRAM_BASE + FLASH_O_CMDWEPROTA, 0x00000000U);
Fapi_setupBankSectorEnable(FLASH_WRAPPER_PROGRAM_BASE + FLASH_O_CMDWEPROTB, 0x00000000U);
DEVICE_DELAY_US(50);
for (i = 0; i < prog_halfwords; i += 4U) {
uint32_t *dest = (uint32_t *)(VIN_FLASH_ADDR + (i * 2U));
ClearFSMStatus();
status = Fapi_issueProgrammingCommand(
dest,
&vin_buf[i],
8U,
NULL,
0,
Fapi_AutoEccGeneration
);
if (status != Fapi_Status_Success) {
Flash_enablePrefetch(FLASH0CTRL_BASE);
Flash_enableCache(FLASH0CTRL_BASE);
IPC_releaseFlashSemaphore();
return status;
}
while (Fapi_checkFsmForReady() == Fapi_Status_FsmBusy) { }
DEVICE_DELAY_US(20);
fsmStatus = Fapi_getFsmStatus();
if (status != Fapi_Status_Success)
{
printf("[VIN] Programming failed @0x%06lX (status=%d, FSM=0x%08lX)\n",
(unsigned long)dest, (int)status, (unsigned long)fsmStatus);
Flash_enablePrefetch(FLASH0CTRL_BASE);
Flash_enableCache(FLASH0CTRL_BASE);
IPC_releaseFlashSemaphore();
return Fapi_Error_Fail;
}
status = Fapi_doVerify(dest, 4U, (uint32_t *)&vin_buf[i], &flashStatusWord);
if (status != Fapi_Status_Success) {
Flash_enablePrefetch(FLASH0CTRL_BASE);
Flash_enableCache(FLASH0CTRL_BASE);
IPC_releaseFlashSemaphore();
return status;
}
}
/* 10) Re-enable prefetch/cache (and ECC if you disabled it) */
Flash_enablePrefetch(FLASH0CTRL_BASE);
Flash_enableCache(FLASH0CTRL_BASE);
IPC_releaseFlashSemaphore();
return Fapi_Status_Success;
}
