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

Peter,
 

Thanks for your offer.    Attached is current version of software, along with example of serial corruption (jpg)

 

The code is fairly well commented.  The essence of the app is to use the ISR to read serial from two UARTS into two 32byte buffers, the ISR also has a transmitt function.  The mainline then empties the buffer and keeps the ISR transmit going.  Data recieved on one uart is transmitted out of the other, and vice versa.

 

This is based on the dualuart.src example from Senix and the 16byte buffering from Gunther!

 

Cheers for your help,

 

James

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