LPC4074 access on chip flash write/read

Jackson7781 — Sun, 13 Mar 2022 04:21:44 GMT

Hi everyone.
I'm new, I'm recently working on a Lpc4074 project, I want to access flash for bootloader application, is there any related resource that I can implement this ?

thank you very much

Re: LPC4074 access on chip flash write/read

ZhangJennie — Mon, 14 Mar 2022 09:54:08 GMT

Hi Jackson7781

The on board boot rom code is never open to external.

If you want to develop your own secondary bootloader, we don't have exact demo for LPC4074, but you can refer it as well.

SPI secondary boot loader
https://www.nxp.com/docs/en/application-note/AN11257.zip

I2C secondary boot loader
https://www.nxp.com/docs/en/application-note/AN11258.zip

LPC1700 secondary USB bootloader
https://www.nxp.com/docs/en/application-note/AN10866.zip

These ANs are based on LPC17xx but motherd is the same for LPC40xx

This AN is Migrating from the LPC177x/8x to LPC407x/8x, in case you need it.
https://www.nxp.com/docs/en/application-note/AN11335.zip

Thanks,

Jun Zhang

topic Re: LPC4074 access on chip flash write/read in MCU Bootloader

LPC4074 access on chip flash write/read

Re: LPC4074 access on chip flash write/read