I send data form PC to nano carrier board kit(UART1-pin6/8/10 of J41) per second, but occasionally the data loses frames, such as,
I send 12345 form pc per second, but nano kit display
12345
12345
45
12345
Some or all of the data will be lost!
But send data to PC form nano , it is without error.
Does anybody encounted the problem or know what’s going on?
we would like to setup an environment to reproduce the issue,
could you please also share the tool or the script files to send data form host-pc per second.
thanks
We use the TTL-USB convertor to connect nanokit to PC, and use serial tool “serial port utility” to send data “12345#” per second loop.
The terminal enter “sudo cat /dev/ttyTHS1” after nano is started, and it displays data such as “5#2345##45#45#12345#2345#12345#2345"etc, but no"12345#12345#12345#12345#12345#”.
confirmed we could also reproduce the failures on the Nano devkit.
we’re arrange resources to investigate this, will update the status after we come out conclusions.
thanks
Yes, I am also facing the exact same issue and am also using /dev/ttyTHS1. Except that I am using the production Nano module with a custom-made carrier board. The signal integrity on the hardware was verified though. I am using R32.2 sources kernel and building it, then flashing it via the flash.sh script. This is needed because there are some custom drivers I need to use.
Anyway… any pointers regarding this issue would be appreciated.