TMS320F28377D: Flash API hangs on Flash Fapi_setActiveFlashBank execution when ECC enabled

Dear all,

I did another experiment. Added 

// Disable ECC of flash
EALLOW;
Flash0EccRegs.ECC_ENABLE.bit.ENABLE = 0x00;
EDIS;

before step 6 and added 

// Enable ECC of flash
EALLOW;
Flash0EccRegs.ECC_ENABLE.bit.ENABLE = 0x0A;
EDIS;

after step 6 which made an delicious sandwich.

Everyting goes well also.

Could anybody tell me why step 6 can not run while ECC of flash is enabled?

Best regards,

Bill

user3970314 said:

Part Number: TMS320F28377D

Dear all,

I'm developing a project which writes settings into flash using Flash API on TMS320F28377D.

I have followed the instructions provided by TI documents and TI E2E Community.

1. Power up
2. Copy interrupts and functions in F021_API_F2837xD_FPU32.lib from flash to .TI.ramfunc using memcpy
3. Execute InitFlash
4. Gain pump access 
5. Execute Fapi_InitializeAPI
6. Execute Fapi_setActiveFlashBank
7. Fapi_issueProgrammingCommand

Everyting goes fine when debugging but hangs on Step 6 when release.

I add

EALLOW;
Flash0EccRegs.ECC_ENABLE.bit.ENABLE = 0x00;
EDIS;

to close ECC of flash after Step 3 which fixed the problem.

Could anybody tell me how to fix the problem while ECC is enabled?

Best regards,

Bill