topic Re: Can the currently used flash bank be determined? in LPC Microcontrollers

Can the currently used flash bank be determined?

mario_goeckel_e — Mon, 13 May 2019 09:26:05 GMT

i want to write data of a new software-image via IAP (In Application Programming) to this one of flash-banks (A and B), which is currently NOT in use to not run into conflict with parts of the running application located on the currently used flash-bank.

Within the user-manual of LPC43xx i only found the command "Chip_IAP_SetBootFlashBank(..)" for setting the boot flash-bank to A or B.

But what I need is to evaluate the used flash-bank (e.g. A) in the first place and set the boot flash-bank (B) in the second place.

Re: Can the currently used flash bank be determined?

jeremyzhou — Tue, 14 May 2019 02:14:55 GMT

Hi Mario Göckel,

Thank you for your interest in NXP Semiconductor products and
for the opportunity to serve you.
To be honest, I'm a bit confused with the mean of 'what I need is to evaluate the used flash-bank (e.g. A) in the first place'.
Whether you want an indicator to tell which flash bank is active now, please explain it.
Have a great day,
TIC

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Re: Can the currently used flash bank be determined?

mario_goeckel_e — Tue, 14 May 2019 06:02:44 GMT

Hello and thanks for the fast response,

Yes, i need an indicator, which tells me which flash bank is active.

Here i already found FLASHCFGA, FLASHCFGB and i am reading bit31 of these registers.

Of cource i could have written a function and a function pointer, pointing to this function and just reading this address to know which flash bank is used, but this would only be a workaround.

I guess this issue can be closed now.

Best regards

Mario Göckel

Von: jeremyzhou

Gesendet: Dienstag, 14. Mai 2019 04:16

An: Goeckel, Mario (ext) (SHS PV R&D-PE MDGC)

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