On Tue, Jan 18, 2005 at 02:08:19PM -0500, Povolotsky, Alexander wrote: > My board is using: > > bd->bi_intfreq = 50000000; > bd->bi_busfreq = 50000000; > > While RPX-Lite is using > > bd->bi_intfreq = 48000000; > bd->bi_busfreq = 48000000; > > Is this what makes RPX-Lite work and my (MPC 880) not ?
That, of course, depends on which value is correct for your board... :-) When I mentioned in one of our (possibly off-line) exchanges that _slightly_ incorrect clock speeds might explain how you get a few good characters from the serial port before you get all that garbage, this is the kind of descrepancy I was suggesting. There may be enough "slop" in the timings of the relatively slow serial port to make 48MHz and 50MHz "close enough" for a few characters. So, what is the correct number for your board? Do you know how to identify an oscillator? They have a bit of a 'tin can' look to them. Find the one closest to the CPU on the board, and see what number is on it. John -- John W. Linville linville at tuxdriver.com
