TMS570LS1224: Programming flash without flash API

Tomas Kirchner

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**** 200206 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**** 200206 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