At 09:30 AM 2/22/2006 -0700, Steve Franks wrote: > > 1/ The coding of the flash programming algorithm in the boot loader > > unreliable because: a) it depends on wait loops rather than polling the > > flash controller status register; and b) it requires clock frequency to be > > passed as a run-time argument. > >I, for one, had origonally assumed the presence of a crystal-freq in >the isp app was just for setting baud-rate dividers appropriately, >though in hindsight, it's obvious that that's needed in the device, >not the pc. This news makes one very cautious, and I don't hesitate >to say that a bootloader requiring a human to type in the crystal freq >to program memory is worthy of being disparaged, in my opinion. Which How else do you propose they determine the frequency in order to set internal timing dependent parameters? Robert " 'Freedom' has no meaning of itself. There are always restrictions, be they legal, genetic, or physical. If you don't believe me, try to chew a radio signal. " -- Kelvin Throop, III http://www.aeolusdevelopment.com/
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Re: [lpc2000] Re: bootloader
2006-02-22 by Robert Adsett
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