lpcware

Getting higher baud rate usart with 72Mhz

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by aamir ali on Sat Aug 10 05:21:04 MST 2013
I read formula on page 223 of Um10524 which gives max baud rate. I am operating uart at 72Mhz.

By this formula I get max baud rate as: 409090. with 8 data , 1 stop & no parity

I have use it for 921600. I think this can be done if oversampling is done by x8 instead of x16. But I think there is no setting.

But LPC1315/16/17/45/46/47 product datsheet says that:
"Maximum USART data bit rate of 3.125 Mbit/s"

How to achieve higher baud rate

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