On Thu, Sep 10, 2020 at 08:27 AM, OneOfEleven wrote:
My NanoVNA v3.3 doesn't have the serial port from the CPU fed to pins like
yours. Looks like they were added after the v3.3 board.
Thank you for sharing Piero !
Correct. Apparently the P UART connection was added in the v3.4 pcb.
Curriously, I found that the ChibiOS serial driver and HAL were already configured to nable that UART. I'm not sure if this was left from some previous project or if someone had started to add UART support in the FW
