Connect TTL-232R-3V3 cable to beagleplay

General Discussion
1

Hi All,

I have a TTL-232R-3V3 cable, but I’m not sure how to connect this to a beagleplay. It doesn’t look like the the G/RX/TX pins on the board match up to the G/RX/TX pins on the cable, so I assume some kind of intermediate cable is required. Do I need an intermediate cable? If yes, what sort of intermediate cable do I need? I can’t seem to find the details on this anywhere.

Any help would be appreciated.

Thanks.

2

You will need to grab some jumper breadboard wires. And connect GND, TX, and RX. Ignore all the other pins

3

Thank you.

I’ve hooked up the serial cable using some breadboard wires, but I don’t see anything on the serial port when I boot. I’ve checked that the serial cable is okay using a loopback wire, so I don’t think the cable is an issue.

I’m just using the OS image that the beagleplay came with, so should I see something on the serial port during boot? If not is there a way I can test my serial port setup to make sure it actually works? I’d like to have confidence that my serial port setup is working properly before I start trying to boot from an SD card or reflash the emmc with a newer image.

Thanks again for your help.

4

Have you tried swapping the Tx and Rx pins?

5

Thank you!

This resolved my issue and I can see the serial output during boot now. I’ve attached an image showing how I connected the cable to the beagle play in the hope that it might help someone else to get this working.

Thanks again.

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