AM2432: QSPI BOOT

MIKIHIRO OKAMOTO

Prodigy 10 points

Part Number: AM2432

Tool/software:

Is a reset pin necessary for the FLASHROM used in QSPI boot?

To reduce costs, we are considering using a low-cost FLASHROM without a reset pin.

I would like to know the risks of using a FLASHROM without a reset pin in this case.

4 months ago

+1 Kier 4 months ago

Mastermind 9520 points

There are some points regarding reset pins in this document:

https://www.ti.com/lit/an/sprad50a/sprad50a.pdf

"Does the flash part support a RESET signal? If at any point of the application 4-byte addressing mode must be used, then a RESET signal is required as to prevent booting problems upon reset."

Therefore if your flash device meets the other criteria, it implies that you don't need a RESET pin unless you meet the specific case above. However, please check with TI before committing to your design. I am not a TI engineer.

+1 Stanislav Stilyanov 4 months ago in reply to Kier

TI__Mastermind 22970 points

Thank you Kier!

Just wanted to add some background behind this. It is from the TRM.

Thanks,

Stan

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AM2432: QSPI BOOT