Best Way for change speed in software uart

[cfernandez]

Hi,

I use software uart for control some device, and I need to change the speed in fly, or make a dynamic "STREAM" identify for not duplicate code (#USE RS232, fgetc, etc)

Anybody make this? and can tell me

Thank you very much!!

Best Regards

[Ttelmah]

Basically, you can't.
The entire putc/getc code will be duplicated for the second stream. If you look at how it is done, the 'common' part, represents only a couple of instructions (the actual shift, and masking operations). Everything else changes,to give accurate timings. If you wanted this, you'd have to write it yourself, perhaps basing it on the variable based delay functions that have been published here. However don't be suprised if this is a lot larger than the existing code, and at the amount of 'tweaking' needed to get the timings right...

Best Wishes