LPC4074 access on chip flash write/read

[Jackson7781]

Spoiler

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

[ZhangJennie]

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