TMS570LS1224: Programming flash without flash API

Tomas Kirchner

Part Number: TMS570LS1224

Hello,

In SPNA148 there is written that The F021 Flash API is required for Flash initialization and bank selection. But in the Technical Reference Manual (SPNU515C) I can see Flash Module Access Control Register (FMAC) to enable a bank and Flash Bank Sector Enable Register (FBSE) to control sectors. So, I am wondering whether the F021 Flash API is required in deed? May it be possible to erase / program flash memory completely without the TI flash library?

With regards,

Tomas

over 4 years ago

0 QJ Wang over 4 years ago

TI__Guru**** 192976 points

Hi Tomas,

Yes, the F021 Flash APIs are required to erase/program the flash. It is possible to erase/program the flash sector with your own code, but It is recommended.

0 Tomas Kirchner over 4 years ago in reply to QJ Wang

Prodigy 120 points

Hi QJ Wang,

Thank You for Your response. I understand that it is possible to omit F021 Flash API, but it is not recommended. May I ask - why it is not recommended?

+1 QJ Wang over 4 years ago in reply to Tomas Kirchner

TI__Guru**** 192976 points

Hi Tom,

I am sorry. The F021 flash APIs MUST be used for erasing/programming the flash. The registers for direct interfacing flash pump and FSM are not published in device datasheet and TRM. Improper programming of voltage registers will damage the flash.

0 Tomas Kirchner over 4 years ago in reply to QJ Wang

Prodigy 120 points

Thank You, QJ Wang, for the explanation. Now it is clear to me.

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TMS570LS1224: Programming flash without flash API