In SX Microcontrollers, SX/B Compiler and SX-Key Tool, javalin wrote:

Jim,

I am doing a similar piece of code, based on the dual-uart available on the www.parallax.com/sx/downloads.asp page.  This works ok running two uarts at 57600, but I get dropouts and issues running dual uarts at 115200 on a SX18 @ 50mhz.

I notice in your code that you have timeings for 50 and 75mhz, and that that ISR seems only to implement a single UART in some situations??

Can you confirm whether two uarts at 115200 can be run with a 50mhz clock, or whether this requires 75mhz.

Cheers

James

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