HI, I am using WP76XX for our project and the settings are as below root@swi-mdm9x28-wp:~# echo -e “AT!MAPUART?\r” | microcom -t 2000 /dev/ttyAT AT!MAPUART? !MAPUART: 17,17 OK One energy meter is connected to this Port and communication over RS232. One issue , I noticed is after close(tty) sy…

Open () of port and close() of the port → will see special characters / junk on TX line for 30 - 35sec After close , when I tried cat /dev/ttyHS0 , I could see that junk characters will just stop for a short time and again will continue. Tested multiple times and noticed same behaviour. When the …

you can try to disable the auto suspend mode and see if there is improvement [image] Problem with Reading UART WP Series Which module are you using ? I remember in WP77 R8, the UART will go to sleep mode after some time. Maybe you can have a try on R9 FW. Or you can tr…

Thanks for the reply. Details are below :slight_smile: root@swi-mdm9x28-wp:~# cm info Device: WP7608-1 IMEI: 352914090196482 IMEISV: E FSN: 3P022685380610 Firmware Version: SWI9X07Y_02…

can you try FW R13 and see if there is problem?

WP76XX /dev/ttyHS0 issues

IoT Modules

jyijyi May 5, 2021, 8:12am 4

you can try to disable the auto suspend mode and see if there is improvement

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WP76XX /dev/ttyHS0 issues

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