TMS320F280037C: Flash API Issue

Liyang Du

Part Number: TMS320F280037C

Hi TI Engineers,

I've encountered a problem while trying to integrate the Flash API into my code. Specifically, the flash write function works correctly when I initiate a flash debug with emulation tools, but fails to function after power cycles. I suspect that some functions which should be executed in RAM are currently being executed in flash.

To address this, I've moved Flash API-related code into a RAM function, following the recommendations provided in the user manual. Despite this, I believe there might still be functions that should be relocated to RAM. Some discussions I've come across suggest that the entire library should be placed in RAM.

Could you please provide suggestions on this matter? Thank you!

Best Regards,

Liyang

over 1 year ago

0 Varshashree Kottadamane over 1 year ago

TI__Prodigy 430 points

Hi,

Please note that our Subject matter expert is currently Out of Office and expected to be back by 25th October. Please expect delay in response.

Thanks,

Varsha

0 Liyang Du over 1 year ago in reply to Varshashree Kottadamane

Prodigy 160 points

Hi Varsha,

I just found the issue is not what I described before. The issue is the write operation can only be executed once for the same address unless I erase this region before writing. Now my question is should I erase the whole bank, or I just need to erase the specific sectors? What I'm doing now is erasing the whole bank, but that's fun for my current use.

Best Regards

Liyang

+1 Vamsi Gudivada over 1 year ago in reply to Liyang Du

TI__Guru* 87145 points

Hi Liyang,

You can do bank erase and still erase only the sectors that you want to erase - the second parameter that you pass for the bank erase command is a protection mask to allow/disallow erase of the individual sectors. Please see details in http://www.ti.com/lit/pdf/spruj27

Thanks and regards,
Vamsi

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TMS320F280037C: Flash API Issue