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

Dan,

You get into the tricky zone with USB serial adapters.  I say this only because the IDE simply uses Win32 API calls for talking to the serial port.  In other words, it's not like the IDe has some magic up its sleeve where it knows it's talking to a USB serial port.  It just does what it has always done and talks to the serial port via the API.  

If you had no problems like this with  a "real" serial port, then it's some issue related to the USB serial port.  One solution that has often helped folks with serial problems is to make the character buffers smaller.  On the USB ports, there tend to be more options to adjust.   

I would try experimenting (one option at a time) and see if you have any positive change.  When you do the experiments, be bold.  If you have sliders, move [b]one[/b] of them to the far extreme and try running the IDE.  Make sure that you [b]apply[/b] the change and possibly restart the IDE to make sure the change is recognized.  If it's not better (or it's worse), move it to the other end.  Lather, rinse, repeat on each parameter until you (presumably) get a more stable setup.  If you get something that works, post it here to share the knowledge.

I wish I could help more, but with having you're exact setup here, it's impossible to now what will work.

Thanks,
PeterM

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