Other Parts Discussed in Thread: HALCOGEN
I have been having some issues getting the F021 API working correctly in my project. I have attached some code snippets below to demonstrate my issue.
/* Creating FaultLOG location in memory and initalizing array
that will be used for the log.
*/
#pragma DATA_SECTION(userLOGFile, "FaultLOG");
SAFETY_DATA const uint8_t userLOGFile[] = "EMPTY";
/* Function called to erase flash sectors. Right now it is configured for just erasing log data. */
SAFETY_FUNCTION results_e ProgramEraseSector (
uint16_t sector /* One of four sectors */
)
{
results_e eraseStatus = fFAIL;
Fapi_StatusType flashStatus;
uint8_t *dataBuffer;
/* Initialize the flash erase sequence for Bank7 */
flashStatus = Fapi_initializeFlashBanks((uint32_t) HCLK_FREQ);
if (flashStatus == Fapi_Status_Success) { flashStatus = Fapi_setActiveFlashBank(Fapi_FlashBank7); }
/* prgBANK7_ACTIVESECTORS is equal to 0x000Fu */
if (flashStatus == Fapi_Status_Success) { flashStatus = Fapi_enableEepromBankSectors(prgBANK7_ACTIVESECTORS, (uint32_t) Fapi_FlashSector0); }
if (flashStatus == Fapi_Status_Success)
{
/* Wait until Flash State Machine is ready */
while (FAPI_CHECK_FSM_READY_BUSY == Fapi_Status_FsmBusy) { ; /* Do nothing */ }
dataBuffer = LogGetJSONPointer();
Fapi_issueAsyncCommandWithAddress(Fapi_EraseSector, (uint32_t *) dataBuffer);
if (sector == prgSECTOR_LOG) { m_isLOGAvailable = false; }
/* Wait until Flash State Machine is ready */
while (FAPI_CHECK_FSM_READY_BUSY == Fapi_Status_FsmBusy) { ; /* Do nothing */ }
if (FAPI_GET_FSM_STATUS == (uint32_t) Fapi_Status_Success)
{
eraseStatus = fPASS;
if (sector == prgSECTOR_LOG) { m_isLOGAvailable = true; }
}
}
return(eraseStatus);
}
/* Passes pointer to first address of log. */
SAFETY_FUNCTION uint8_t *LogGetJSONPointer ( void )
{
uint8_t *ptr;
ptr = (uint8_t *) userLOGFile;
return (ptr);
}
/* Memory map */
MEMORY
{
VECTORS (X) : origin=0x00000000 length=0x00000020
KERNEL (RX) : origin=0x00000020 length=0x00008000
FLASH0 (RX) : origin=0x00008020 length=0x000B7FE0
STACKS (RW) : origin=0x08000000 length=0x00001000
KRAM (RW) : origin=0x08001000 length=0x00000800
RAM (RW) : origin=(0x08001000+0x00000800) length=(0x0001e400 - 0x00000800)
FEE (RW) : origin=0xF0200000 length=0x00004000 vfill=0xffffffff
FEE1 (RW) : origin=0xF0204000 length=0x00004000 vfill=0xffffffff
FEE2 (RW) : origin=0xF0208000 length=0x00004000 vfill=0xffffffff
FEE3 (RW) : origin=0xF020C000 length=0x00004000 vfill=0xffffffff
/* USER CODE BEGIN (2) */
/* USER CODE END */
}
/* USER CODE BEGIN (3) */
/* USER CODE END */
/*----------------------------------------------------------------------------*/
/* Section Configuration */
SECTIONS
{
.intvecs : {} > VECTORS
/* FreeRTOS Kernel in protected region of Flash */
.kernelTEXT : {} > KERNEL
.cinit : {} > KERNEL
.pinit : {} > KERNEL
/* Rest of code to user mode flash region */
.text : {} > FLASH0
.const : {} > FLASH0
/* FreeRTOS Kernel data in protected region of RAM */
.kernelBSS : {} > KRAM
.kernelHEAP : {} > RAM
.bss : {} > RAM
.data : {} > RAM
.sysmem : {} > RAM
FEE_TEXT_SECTION : {} > FLASH0
FEE_CONST_SECTION : {} > FLASH0
FEE_DATA_SECTION : {} > RAM
FaultLOG : START ( ulLogStartAddr ) {} > FEE3
Stepping through the ProgramEraseSector function I seem to be able to set flash bank 7 as the active flash bank and to enable eeprom on bank 7. The RM44L520 has 16 sectors so I passed in 0x0F to allow all 16 sectors to be erased. Both of these API calls passed back success flags so they seem to have worked correctly.
After calling Fapi_issueAsyncCommandWithAddress with the erase flag and the address for the Log file the FAPI_GET_FSM_STATUS macro never returns the success flag. I checked the FlashWrapper registers and found that the FMdlStat register is set to 0x11 . According to the F021 API document this code indicates that Sector Lock Status bit and the Command Status bits are set. At this point I am a bit confused because according to the API documentation the SLOCK should not be able to be set if all sectors are set to 1 which is what I would expect from the log sectors as they were all vfilled with 0xFF in the memory map. Please let me know if there is something I am missing or is there is some additional step I need to take prior to erasing flash sectors.
