Greg, Thanks, will check that again. I used the Flexcoms that are labeled on the board itself (Flexcom 0, 3, and 4) and looked at the pinouts. I also used the debug UART1 that works with U-Boot and Linux...
I'll also try using a logic analyzer to see if there is any output at all. -adam On Thu, Feb 27, 2020 at 1:11 PM Gregory Nutt <spudan...@gmail.com> wrote: > I would look closely at the pins on the schematic and carefully verify > how you have the Tx/Rx pins configured. > > I'm working trying to get NuttX working on the SAMA5D2-XULT board. I > can't > > seem to get the UART1 serial port working with NuttX, or the FLEXCOM > > USARTs. > > > > NuttX seems to boot ok... I can load code via J-Link, and in the debugger > > it lands in nsh_main. But there's no output on the serial console. > > > > I can boot the board into U-Boot or yocto linux, and the UART1 console > > works fine there, though. > > > > Does anyone have any ideas on how I can determine what's wrong with the > > USART or FLEXCOMs? > > > > -- Adam Feuer <a...@starcat.io>
