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

Yes, I did this with an SX52 board. 

It was surprisingly easy. I'd been worried about satisfying the refresh requirements, but as I was using RTCC-controlled interrupts anyway for RS232 communication, I was able to just stick a refresh command into the ISR and it worked like a champ.

Here's some code. I was developing a bike speedometer/heartbeat sensor at the time, so you'll see lots of semi-developed code for those things. But the dynamic RAM and the RS232 ISR parts were working perfectly.

David

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