TMS320F280049C: Fapi_issueProgrammingCommand always produces FMSTAT INVDAT to be 1

Part Number: TMS320F280049C

Hi,

I'm trying to use the flash API and try to program FLASH but it always returns failure. From the manual the INVDAT will be set if I'm trying to write 0 to 1 in flash. Before I write to FLASH I have erased the flash (also checked with functions everything is OK and with memory browser that is is all 0xFFFF) but it doesn't help. What am I doing wrong?

Here is some code how am I trying to do it:

uint32_t addressToErase = 0x8F000;
uint16_t data[4];
data[0] = 0x10;
data[1] = 0x11;
data[2] = 0x12;
data[3] = 0x13;

Fapi_StatusType flashStatus = Fapi_issueAsyncCommandWithAddress(Fapi_EraseSector, (uint32_t *)addressToErase);
while (Fapi_checkFsmForReady() != Fapi_Status_FsmReady);
if (flashStatus != 0)
{
    // Handle error
}
else
{
     if (Fapi_getFsmStatus() != 0u)
     {
         // Handle error
     }
     else
     {
        // Check if blank
        Fapi_FlashStatusWordType flashStatusWord;
        flashStatus = Fapi_doBlankCheck((uint32_t *)addressToErase, 0x1000, &flashStatusWord);
        if (flashStatus != Fapi_Status_Success)
        {
            // Handle error
        }
        else
        {
            flashStatus = Fapi_issueProgrammingCommand(&addressToErase, &data[0], 4, NULL, 0u, Fapi_AutoEccGeneration);
            // Wait until the Flash program operation is over
            while (Fapi_checkFsmForReady() != Fapi_Status_FsmReady);
            if (flashStatus != Fapi_Status_Success)
            {
                Will always come here because INVDAT is 1
                // Handle error
            }
            ....

        }
     }
}