continuing from this : https://community.st.com/t5/stm32-mcus-boards-and-hardware/stlink-v3mods-uart-api/td-p/747740
Finally found the reason why could not get data from STLINK V3-MODS from the 2nd UART
Compared to the VUART the UART RX/TX pins are reversed.
Could ST please issue a firmware fix for this ? (otherwise need gerber out new boards !)
I suspect that the designer of the V3MOD intended the VUART port as a DCE for UUT that normally act like a DTE, while the UART port on the V3MOD acted like an DTE. if that so then that should be clearly documented , right now that isn't and thus causes my V3MOD board UART port not to work with a UUT (which is a DTE). without a firmware fix, My board need to be relayout. Would really like a confirmation as this same question also applies to the RTS/CTS pins are they configured as DCE or DTE ? Could ST please clarify the exact intent how these ports supposed to be used and are configured in the firmware ?
