Serial Communication between CC13xx device

Mark Felberg

Guru 19990 points

Other Parts Discussed in Thread: CC1310

Hi everyone, I working with two cc13xx device and I would like to implement a serial communication between device. I think that used a HyperTerminal, but I read on UART and not communicate.

over 6 years ago

0 YiKai Chen over 6 years ago

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You can refer to UART echo example at dev.ti.com/.../

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

Is it used without Smart RF? Only the two CC1310 devices?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Yes.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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I Have CC1310(cc26xx-web-demo) and CC1310(gateway). How can I communicate between device? I don't know. I use hyperterminal but I read the uart the device, i not write

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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cc26xx-web-demo has UART example in it.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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I would like this:

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Yes. You can refer to net-UART.c to know how UART works in Contiki.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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is there a guide?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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No. Source code is the guide.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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How can I send a simple string? Could you give me an example?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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You can use printf to send a strin over UART.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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By writing this string, can I send it from Device1 and read it on device2?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Yes, it should work.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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But should the code be written in net-uart or cc26xx-web-demo?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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It can be anywhere you want to send UART message.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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But it should not be a printf, because I would write anything and then read it from another device

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Although it can be sent from anywhere in the application, you can constrain using printf only in one specific point in your application and that is your own choice.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

Ok, Can I write anything on the terminal and do you read it?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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If you use enable "#define CC26XX_WEB_DEMO_CONF_NET_UART 1" in project_conf.h of cc26xx-web-demo, it should work.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

Ok, thanks

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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Is enable. But I don't know how function. I tested but nothing. I don't read nothing

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Try to read Network UART (net-uart) section in github.com/.../README.md and test to see if it works first.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

COM3 is cc26xx-web-demo.bin and COM4 is 6lbr-router.

Now is write on UART of COM3, but on UART of COM4 I not read 6LBR

0 YiKai Chen over 6 years ago in reply to Mark Felberg

Guru 735455 points

If you run two CC26xx-web-demo on two CC13x0 and input something from COM port of one CC13x0, it should be broadcast over UDP and received by another CC13x0 which should output the message on it COM port.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

So should I use two cc26xx-web-demo?

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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How?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Yes, you should use two cc26xx-web-demo. Input something to UART of one cc26xx-web-demo and the message should be sent over UDP and received by another cc26xx-web-demo to output on UART.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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What program can I use to exchange messages?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Any terminal tool such as teraterm.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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Where can I change the recipient's set_dest_addr?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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it uses broadcast so anyone in the network and listen to port 7777 would received the data.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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So?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Do you setup another cc26xx-web-demo to receive data?

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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How?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Use another CC13xx running cc26xx-web-demo and connect to the same network to receive the data. You also need to connect a terminal tool to this CC13xx to see the UART output.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

I use two cc1310 connect to my PC. I opened Hercules (serial and UDP) but I don't see nothing

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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You should connect using serial instead of UDP.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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But if you connect them both on hercules with terminals how do i set port 7777?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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You don’t have to. It is set in source code of CC26xx-web-demo

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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Ok, but I set the two device on Hercules with two COM of serial. But I don't see nothing

0 YiKai Chen over 6 years ago in reply to Mark Felberg

Guru 735455 points

Then, you have to setup sniffer to check if the message is broadcast over power 7777.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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I did not understand how this communication should take place

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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It’s explained in github.com/.../README.md

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

Okay, so what do I have to use?

CC1310 cc26xx-web-demo with Hercules with COM3 serial port
CC1310 cc26xx-web demo with Hercules with UDP setting.

Is that so?

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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Both CC1310 should run CC26xx-web-demo and connect to different COM ports.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

Ok, but how I can communicate between device? I use Hercules and I not see nothing

0 YiKai Chen over 6 years ago in reply to Mark Felberg

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I have told you to type something into one of COM port and you should see the same measure output on another COM port.

0 Mark Felberg over 6 years ago in reply to YiKai Chen

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If I type something on the UART of COM3, the COM5 don't receive nothing

0 YiKai Chen over 6 years ago in reply to YiKai Chen

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Do they join your 6lbr?

0 Mark Felberg over 6 years ago in reply to YiKai Chen

Guru 19990 points

So should the 6lbr be connected too?

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Serial Communication between CC13xx device