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by Ragnos
Tue May 01, 2018 8:40 am
Forum: Troubleshooting
Topic: RPi 3 UART for RS232
Replies: 9
Views: 11915

Re: RPi 3 UART for RS232

Hi,

I don't know if they changed anything in the software since then. But back then you had to switch one of the two off via the config file. Therefore you could only use one of the two at a time.
by Ragnos
Sun Sep 11, 2016 3:03 pm
Forum: Troubleshooting
Topic: RPi 3 UART for RS232
Replies: 9
Views: 11915

Re: RPi 3 UART for RS232

Thanks!!! You safed my day! It works now! Yes, I used it (rasp-config), but I reinstalled raspbian (with noobs) in the meantime. I thought, that this would revert this change. At least I can't remember doing it after the new installation, because I started this thread and wanted everything back to s...
by Ragnos
Sun Sep 11, 2016 2:09 pm
Forum: Troubleshooting
Topic: RPi 3 UART for RS232
Replies: 9
Views: 11915

Re: RPi 3 UART for RS232

Thanks for the quick reply. These are the results: [email protected]:~ $ ls -lh /dev/ttyS0 ls: cannot access /dev/ttyS0: No such file or directory [email protected]:~ $ ls -lh /dev/ttyAMA0 crw-rw---- 1 root dialout 204, 64 Sep 11 13:56 /dev/ttyAMA0 [email protected]:~ $ ls -lh /dev/serial0 ls: cannot access ...
by Ragnos
Sun Sep 11, 2016 1:36 pm
Forum: Troubleshooting
Topic: RPi 3 UART for RS232
Replies: 9
Views: 11915

Re: RPi 3 UART for RS232

Thanks for the answer. This explained a lot to me. I'm glad that the other device also works with 3.3V logic levels, so I don't need any intermediate circuitry. But I still have a problem when I try to open the UART filestream. I did the following: Added "enable_uart = 1" to the config.txt (with sud...
by Ragnos
Sat Sep 10, 2016 2:38 pm
Forum: Troubleshooting
Topic: RPi 3 UART for RS232
Replies: 9
Views: 11915

RPi 3 UART for RS232

Dear community, I just got my RPi and after some time toying around I started a project. But I encountered some problems with the useage of the UART at the RPi 3. Because of this problems and the fact that I found different methods on the web depending on which packages are used I used apt-get updat...

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