RF51-DK - any UART or SPI signals on connector...?

[Andreas]

Looking into the schematics, I could not find any uart or spi signals on the connectors. I am good in soldering, but I would not dare connecting wires to the nrf51422...

Am I missing something?

[RK]

Every GPIO line is presented on the connectors. Since you can configure the chip to use any input/output you wish for UART or SPI or any of the other interfaces, you just select which you want to use in code and connect your peripheral to the correct GPIO line on one of the connectors. There's no need to have specific pins on the connector designated to 'SPI' or 'UART', it's entirely flexible.

Note the default for UART in most of the code you'll see is to use P0.08, 09, 10 and 11 for RTS, TXD, CTS and RXD and those GPIOs, as well as being brought out to the connector, are also connected to the corresponding inputs of the interface MCU chip, which then presents it as a USB serial port. If you want to use the UART yourself either choose different GPIOs in code, or if you really want to use 08/9/10/11 you can cut the solder bridges and disconnect from the MCU (there would be few reasons to do this that I can think of).