I do not think there is much of a speed difference between the two.
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I do not think there is much of a speed difference between the two.
Dave
Always wear safety glasses while programming.
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DEBUG probably fastest
The handbook says DEBUG is the smallest and fastest serial I/O command.
Why not try that?
HTH
Brian
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Hi,
These are software UARTS using the bit-banging technique.
The speed is the same because the speed is tied to the baud rate
you receive the data.
Best regards,
Luciano
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ahh. that makes sense. im using 9600N at the moment. how do i know how high i can go? are there chip specific restrictions?
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19200 according to the manual is the top end for SERIN/OUT2. You will need an OSC faster than 4MHz though.
Look at appendix A
Dave
Always wear safety glasses while programming.
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oh. do you know the fastest for a chip using 4MHz?
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At 4MHz the recommended is less than 9600. 9600 will work at 4MHz if all is stable.
There is some debate, but I do not like the internal OSC for serial, I use a crystal resonator (the ones with three pins, built in caps) seem to be very stable.
Dave
Always wear safety glasses while programming.
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