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Re: [lpc2000] custom bootloader

2005-11-15 by Richard Duits

Hi Joel,

I did write my own bootloader and programmed in sector 0. So I did not 
replace the philips bootloader, but just added an extra bootloader. 
Sorry, but I cannot share the source. Because the flash hardware is not 
documented, you would have to reverse engineer the philips bootloader to 
write a replacement.

I would like it if philips would create some kind of bootloader 
extension interface, so you could add your own IO routines to the 
bootloader. I would immagine this could work like the PC BIOS extension 
interface: the PC BIOS looks every 16KB boundary for a ROM signature and 
calls the ROM extension if a signature is found.

Richard Duits



Joel Winarske wrote:

> Has anyone replaced the LPC214x boot loader with their own code? If so how
> much of a hassle is it?
>
> Is Phillip's planning on coming out with a boot loader upgrade to support
> USB?  Perhaps via CDC serial emulation, similar to the Atmel?  This would
> require no change to their PC software, and no PC side driver.
>
>
> Joel
>
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