Serial connection on the embedded board
Connect a PC via USB
The SBC has two serial connectors (RS232; Baudrate 115200 bps). Access on SBC: /dev/ttymxc0 and /dev/ttymxc3. Schematic (X1004):
To connect the platform via USB to a PC a TTL-232RG-VREG1V8-WE (1.8V) can be used. The Pins are assigned as follows:
| Connector 1 (/dev/ttymxc0) | Connector 2 (/dev/ttymxc3) | Color TTL-232RG-VREG1V8-WE |
|---|---|---|
| 1 | 2 | Black |
| 3 | 4 | Green |
| 5 | 6 | Red |
| 7 | 8 | Orange |
| 9 | 10 | Yellow |
| 11 | 12 | Brown |
Connect a PC via DB9 (RS232)
To connect the platform via DB9 to a PC a MAX232 chip has to be used to convert the voltage levels from 1.8V to 12V. The setup is shown below:
