TMS320F28388D: Flash Erase

Part Number: TMS320F28388D
Other Parts Discussed in Thread: C2000WARE

Hi 

I am using F28388D controller, Can you please check the code if the initialization is correct, as of now i have disabled the ECC but will enable it once this is working for data only. it works fine when Ext watchdog is disabled. Can you please let me know if i can interrupt using CPU Timer 2  for every 1msec or any other you can suggest when a erase command is issued.

#pragma CODE_SECTION(InitFlash, "ramfuncs");
void InitFlash(void)
{
    EALLOW;
    //->At reset bank and pump are in sleep. A Flash access will power up the
    // bank and pump automatically.
    // After a Flash access, bank and pump go to low power mode (configurable
    // in FBFALLBACK/FPAC1 registers) if there is no further access to flash.
    // Power up Flash bank and pump. This also sets the fall back mode of
    // flash and pump as active.
    // Set PMPPWR member of gstrFlash0CtrlRegs to 0x1.
    gstrFlash0CtrlRegs.FPAC1.bit.PMPPWR = 0x1;
    //->Set BNKPWR0 member of gstrFlash0CtrlRegs to 0x3.
    gstrFlash0CtrlRegs.FBFALLBACK.bit.BNKPWR0 = 0x3;

    //->Set DATA_CACHE_EN member of gstrFlash0CtrlRegs to 0.
    gstrFlash0CtrlRegs.FRD_INTF_CTRL.bit.DATA_CACHE_EN = 0;
    //->Set PREFETCH_EN member of gstrFlash0CtrlRegs to 0.
    gstrFlash0CtrlRegs.FRD_INTF_CTRL.bit.PREFETCH_EN = 0;
    //->Set RWAIT member of gstrFlash0CtrlRegs to 0x3.
    gstrFlash0CtrlRegs.FRDCNTL.bit.RWAIT = 0x3;
    //->Set DATA_CACHE_EN member of gstrFlash0CtrlRegs to 1.
    gstrFlash0CtrlRegs.FRD_INTF_CTRL.bit.DATA_CACHE_EN = 1;
    //->Set PREFETCH_EN member of gstrFlash0CtrlRegs to 1.
    gstrFlash0CtrlRegs.FRD_INTF_CTRL.bit.PREFETCH_EN = 1;

    //->At reset, ECC is enabled. If it is disabled by application software and
    // if application again wants to enable ECC.
    // Set ENABLE member of gstrFlash0EccRegs to 0x0.
#warning"ECC disabled!"
    gstrFlash0EccRegs.ECC_ENABLE.bit.ENABLE = 0x0;

    //-> Disable the write protected registers for write operation.
    EDIS;

    //->Force a pipeline flush to ensure that the write to the last register
    // configured occurs before returning.
    // Invoke __asm with " RPT #7 || NOP" as parameter
    __asm(" RPT #7 || NOP");
}

//I have created a function to erase each sector 4, 5, 6 in a below mentined while loop
//and i need to refresh external WD every 7ms my GPIO to refresh Ext Wd is working .
//but i see it takes more time to erase not getting how its getting stuck in flash api lib
//function call, can i have a interrupt using CPU timer 2 to refresh WD when Erase command is 
// issues.
        while(eFlashErasePrimOfs != Fapi_Status_Success)
        {
            eFlashErasePrimOfs = FdFlashEraseNew((UINT32 *)0x88000); 
            
            TcStartTimer(GBL_FLASH_ERASE_TIMER_7);
            //Delay of 50ms
            while(u32Timer50ms < 50000)
            {
                RefreshWD();
                u32Timer50ms = TcGetTimerCount(GBL_FLASH_ERASE_TIMER_7);
            }
           
            u32Timer50ms = 0;
        }
        
        
#pragma CODE_SECTION(FdFlashEraseNew,"ramfuncs");
Fapi_StatusType FdFlashEraseNew(UINT32 *pu32FlashAddress)
{
    Fapi_StatusType eStatusFlash = Fapi_Error_Fail;

    if(pu32FlashAddress == NULL)
    {
        eStatusFlash = Fapi_Error_Fail;
    }
    else if (eStatusFlash != Fapi_Status_Success)
    {
        FdFlashEraseSector(pu32FlashAddress, &eStatusFlash);
    }
    else
    {

    }

    return eStatusFlash;
}

#pragma CODE_SECTION(FdFlashEraseSector,"ramfuncs");
void FdFlashEraseSector(UINT32 *u32FlashSectorAddr, Fapi_StatusType *eStatusupdate)
{
    static Fapi_StatusType eStatustemp1 = Fapi_Error_Fail;
    static Fapi_StatusType eStatustemp2 = Fapi_Error_Fail;
    static Fapi_StatusType eStatustemp3 = Fapi_Error_Fail;

    if(gu32FlashSectorAddr != u32FlashSectorAddr)
    {
        eStatustemp1 = (Fapi_StatusType)Fapi_issueAsyncCommandWithAddress(Fapi_EraseSector,(UINT32 *)u32FlashSectorAddr);

        gu32FlashSectorAddr = u32FlashSectorAddr;

    }
    else if(eStatustemp1 == Fapi_Status_Success && eStatustemp2 != Fapi_Status_FsmReady)
    {
        eStatustemp2 = FdFlashOperationStatus();

        *eStatusupdate = eStatustemp2;

    }
    else if(eStatustemp2 == Fapi_Status_FsmReady)
    {
        if(eStatustemp3 != Fapi_Status_Success)
        {
            eStatustemp3 = FdFlashEraseVerify((UINT32 *)u32FlashSectorAddr);
        }
        if(eStatustemp3 == Fapi_Status_Success)
        {
        *eStatusupdate = eStatustemp3;
        gu16MaskFlag = 0;
        eStatustemp2 = Fapi_Error_Fail;
        eStatustemp1 = Fapi_Error_Fail;
        eStatustemp3 = Fapi_Error_Fail;
        }
    }
    else
    {

    }

}

Can you please let me know if i can interrupt using CPU Timer 2  for every 1msec or any other you can suggest when a erase command is issued.

thanks,

Nagesh