Template:FAQ/Questions/serial ports

What is the configuration for 4 native serial ports, or 3 serial ports and one Ethernet port ?
1/ There are only 3 UARTs on the verdex motherboard and 4 UARTs are available on basix and connex motherboards.

2/ The basix motherboard does not offer ethernet.

3/ On the expansion board selector tool, "4 3V TTL UARTs" plus LCD may be selected to get the breakout-gs board.

4/ Using ethernet stops use of HWUART. Ethernet doesn't use a UART, but it does use the lines that the UART uses, in an alternate function mode.

Conclusion: for 4 serial ports and LCD, or three serial ports, LCD and one ethernet port, use the two-board solution of:

breakout-gs + connex motherboard + screws & spacer kit + power supply ... (+ netCF expansion board for programming & debugging).