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The serial output of the ComBoard (CC430 or STM32L4 MCU) can be accessed directly via USB. The FTDI chip on the DevBoard provides two serial ports, one of which is for the ComBoard (on a Linux system it is always the one with the higher number).
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You can connect to the serial port with any serial terminal such as e.g. `gtkterm`:
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`gtkterm -p /dev/ttyUSB1 &`
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<br />
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*In case the solder jumpers on the back of the DevBoard are closed:*
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Since the **DTR** and **RTS** lines of the FTDI chip are directly connected to the **nRST** and **BOOT0** pins of the STM32, those lines need to be forced into high (nRST) and low (BOOT0) state respectively. In `gtkterm`, simply toggle the reset line once via _Control signals_ > _Toggle DTR_ (or press _F7_).
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Alternatively, you can use a custom python script (e.g. [this one](https://gitlab.ethz.ch/tec/research/dpp/software/misc/tools/blob/master/bsl/serialio.py)) to access the serial port. |