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by asafyurdakul
Wed Aug 07, 2019 10:08 am
Forum: Device Tree
Topic: Pi-4 Activating additional UART ports
Replies: 35
Views: 4497

Re: Pi-4 Activating additional UART ports

Thank you PhilE I have found my problem. I have checked command "raspi-gpio get 0-15". I see that there is no problem like your result. But when I run my program , the result of this command changed. 4,5 (Uart3) and 13 (Uart5) gpio pins "alt=4" properties are cleared and "func" properties are change...
by asafyurdakul
Tue Aug 06, 2019 9:03 am
Forum: Device Tree
Topic: Pi-4 Activating additional UART ports
Replies: 35
Views: 4497

Re: Pi-4 Activating additional UART ports

Hi everyone Thanks for how to uarts activated on RPI-4. I added overlay lines (like below) to "/boot/config.txt" on my RPI-4 [all] enable_uart=1 dtoverlay=uart2 dtoverlay=uart3 dtoverlay=uart4 dtoverlay=uart5 I have tested RX/TX for all activated uarts. The results are below. OK : There is no proble...

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