The divider is fixed in the ROM code and can't be changed. So you won't be seeing 115.2 kbps. You'll need to see if you can set your host baud rate to match the expected baud rate. The actual devisor value is set to 0x0F, so that would give a baud rate (per page 11 of SPRUE33) of 24000000/(15*16) = 100000 bits/second.
Regards, Daniel Daniel J. Allred Software Applications Catalog DSP / Emerging End Equipment ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andy Ngo Sent: Wednesday, March 28, 2007 8:20 PM To: davinci-linux-open-source @linux.davincidsp.com Subject: UART boot clock Hi, I will bringing up our custom board in the next day to two when it's ready. Since everyone says the easiest test to do is put the board in "UART boot" mode and see if the CPU is cycling and UART is working. Our custom board is using a 24Mhz crystal oscillator instead of 27Mhz. Since we're using 24Mhz instead of 27Mhz, how does the Davinci know what divider value, etc to use to divide that clock down to 115.2 kbps to get the serial message "BOOTME" out correctly? Do I have to do anything special? Thanks. Regards, Andy
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