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Forum Index : Microcontroller and PC projects : pico as a 6-port USB to serial bridge
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| robert.rozee Guru  Joined: 31/12/2012 Location: New ZealandPosts: 2442 |
there was mention in another thread of extra virtual serial ports on a pico, and it reminded me of the below: https://github.com/harrywalsh/pico-hw_and_pio-uart-gridge/tree/HW_and_pio_uarts six physical serial ports (RxD and TxD only) concentrated by a pico onto a USB bus, with 6 virtual comm ports then available at the PC end. one could argue that this is the 2nd most useful thing to do with a pico (sitting a good distance below running MMbasic on it). there is a compiled binary for this somewhere out there on the net, but i can't quite remember where. although it may well benefit from updating to use the latest SDK. cheers, rob :-) |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5089 |
Good find. This is really nice. I will try this tonight. A pico acts as 6x FTDI. They use the PIO's though, so I expect the baudrate of PIO UARTS to be coupled, not independent. Volhout Edited 2022-01-05 17:39 by Volhout PicomiteVGA PETSCII ROBOTS |
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CaptainBoing Guru Joined: 07/09/2016 Location: United KingdomPosts: 2170 |
saw a design for something similar back in the late 80s. of course it wasn't as compact but it was a RS232 pass-thru and the designer used a higher baudrate to communicate with the controller and switch port, the higher rate being ignored by the attached peripherals. never built one but I liked the idea of addressable '232 |
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