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 > > > > > SPONSORED LINKS > Microprocessor > <http://groups.yahoo.com/gads?t=ms&k=Microprocessor&w1=Microprocessor&w2=Microcontrollers&w3=Pic+microcontrollers&w4=8051+microprocessor&c=4&s=93&.sig=tsVC-J9hJ5qyXg0WPR0l6g> > Microcontrollers > <http://groups.yahoo.com/gads?t=ms&k=Microcontrollers&w1=Microprocessor&w2=Microcontrollers&w3=Pic+microcontrollers&w4=8051+microprocessor&c=4&s=93&.sig=DvJVNqC_pqRTm8Xq01nxwg> > Pic microcontrollers > <http://groups.yahoo.com/gads?t=ms&k=Pic+microcontrollers&w1=Microprocessor&w2=Microcontrollers&w3=Pic+microcontrollers&w4=8051+microprocessor&c=4&s=93&.sig=TpkoX4KofDJ7c6LyBvUqVQ> > > 8051 microprocessor > <http://groups.yahoo.com/gads?t=ms&k=8051+microprocessor&w1=Microprocessor&w2=Microcontrollers&w3=Pic+microcontrollers&w4=8051+microprocessor&c=4&s=93&.sig=1Ipf1Fjfbd_HVIlekkDP-A> > > > > ------------------------------------------------------------------------ > YAHOO! GROUPS LINKS > > * Visit your group "lpc2000 > <http://groups.yahoo.com/group/lpc2000>" on the web. > > * To unsubscribe from this group, send an email to: > lpc2000-unsubscribe@yahoogroups.com > <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe> > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service <http://docs.yahoo.com/info/terms/>. > > > ------------------------------------------------------------------------ >
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Re: [lpc2000] custom bootloader
2005-11-15 by Richard Duits
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