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Lpc2000

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LPC Baud Rate Question???

2003-11-26 by David Bermingham

Hi,
Im looking for Help on the UART initialisation for the LPC, I need a BAUD rate of 57600 bps but cant figure out the correct values to write to the DLM/DLL registers...
 
A CCLK value of 60Mhz will give a default VPB(pclk) speed of 15MHz...Yes??
The value in the DLM/DLL registers has to be 16 time the desired baud rate, which gives 57600x16 = 921600. But this number is a 20 Bit Integer....
            .....11100001 00000000 0000.
 
Please can somebody explain where my calculations are going wrong..or do I have to slow the processor down to get the required Baud rate???
 
Thanks
David



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