RE: PIC-based PIC programmer?

Peter Onion <[email protected]>
Newsgroups gmane.comp.hardware.microcontrollers.gnupic
Message-ID <[email protected]> 
On Thu, 2005-07-07 at 17:29 +0800, Chen Xiao Fan wrote:

> 
> The bootloader is a good idea. However I think it is very
> difficult. Unfortunately the bootloader that I know requires
> different firmware for different oscillating frequencies.

I assume you are using a "bit bang" serial interface ?  In which case 
you could recalibrate it after a reset.  Get the PC to send a known
character string and measure the bit times and you can then work out the
delays to get the baudrate right.

Peter
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