TMS570LS3137: Cannot access BANK0 and Bank1

Cherry Zhou

Part Number: TMS570LS3137

Hi team,

Here's an issue from the customer may need your help:

Use the TMS570LS3137ZWT.

When using the F021 flash API, BANK7 for on-chip flash can only be erased/read/written, but BANK0 and Bank1 cannot be read using the same API. Accessing its address directly jumps to the underlying flash read error. Why is this?

Could you help check this case? Thanks.

Best Regards,

Cherry

over 2 years ago

0 jagadish gundavarapu over 2 years ago

TI__Guru 62310 points

Hi Cherry,

Is it possible to share the code for better understanding of the issue?

Thanks & Regards,

Jagadish.

0 Cherry Zhou over 2 years ago in reply to jagadish gundavarapu

TI__Mastermind 22235 points

Hi Jagadish,

Thanks for your support.

Read and write in main function is as follows:

Below is the implementation of read function:

The following is where bank and sector point to:

Accessing its address directly jumps to the underlying flash read error:(Read operation can return successful if execute read only)

Thanks and regards,

Cherry

0 jagadish gundavarapu over 2 years ago in reply to Cherry Zhou

TI__Guru 62310 points

Hi Cherry,

Thanks for detailed information, I started my debugging and i will give update soon.

Thanks & Regards,

Jagadish.

0 jagadish gundavarapu over 2 years ago in reply to jagadish gundavarapu

TI__Guru 62310 points

Hi Cherry,

I created below project to recreate the issue you mentioned but i don't see the issue

TMS570LS_FLASH_TEST.zip

Can you please test it at your end and do necessary modifications to create your issue?

Thanks & Regards,

Jagadish.

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TMS570LS3137: Cannot access BANK0 and Bank1