Maximum baud rate

[anonymix007]

What will be the maximum achievable baud rate? I've seen reports of ~1 MBaud, but for my application 3 or more will be needed. Can it be achieved on RP2040?

[xxxajk]

Providing that you have proper wiring, yeah... But you really want to wait until bug #20 is fixed with #24 or just use my branch until that point. technically it should max out at 961.6 kBaud, however there may be ways to overclock bits and pieces ;-)

[csarn]

I tried it with a short loopback wiring (connecting both pico uarts together), and had increasingly severe transmission errors starting at 1MBaud. Then I pulled the changes from the mentioned #24 (or rather #25), and had zero transmission errors (I tried up to 5Mbaud).

[xxxajk]

Yeah, remembering to have the pullup enabled is the trick to that working in my original patch.