TMS570LS3137: Prefetch Entry when using Flash API.

Hello,

1. Two status should be checked after issuing Fapi_issueProgrammingCommand(..) API:

       while( FAPI_CHECK_FSM_READY_BUSY == Fapi_Status_FsmBusy );

       while(FAPI_GET_FSM_STATUS != Fapi_Status_Success);

2. When copying the Flash API related functions to SRAM, please copy the const to SRAM as well.

Hello, 

Sorry for the late reply. 

1. When Fapi_issueProgrammingCommand(..) running, code cannot move this function. Stucked to prefetchEntry. Thus, there is no after of this function. The problem is in this function. 

2. Yes, I did that. 

Is there any idea to proceed. I can share the code pieces if you want. 

Osman,

Thanks in advance.

Hello Osman,

Does your code check the FAPI status after enabling the bank and sectors?

(void)Fapi_setActiveFlashBank((Fapi_FlashBankType)Bank);
(void)Fapi_enableMainBankSectors(0xFFFF); 

while( FAPI_CHECK_FSM_READY_BUSY != Fapi_Status_FsmReady );

while( FAPI_GET_FSM_STATUS != Fapi_Status_Success );

If FSM is still busy when you call Fapi_issueProgrammingCommand(), you may get error. 

When you step into the Flash API in disassembly window, please check if the branch address (in BL instruction) is valid, and if push and pop are called to handle the return address.