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COM convert to usb
Posted: Sat Dec 03, 2016 10:13 pm
by Raymond
If i have a convert interface plug of com to usb ,how can i program to control the usb protocol with com port?
Is there any example code or documents available?
Re: COM convert to usb
Posted: Mon Dec 05, 2016 6:47 am
by digo_rp
if I understood, this is a vendor to vendor specific, cuz an adapter from usb -> com RS232 you have and micro-controler on it, then you have to find a documentation from vendor to vendor, or try to find out on linux kernel.
I hope this helps.
good lock.
Re: COM convert to usb
Posted: Mon Dec 05, 2016 10:46 am
by Boris
Hi, you have to look for the technology behind the port com. Usually what you have is a " FTDI" which is " UART" compliant .
Remember than USB can have high latencies ( +-1ms) which on-board UART controller doesn't have.