Hi @JerryChang ,
It seems that I already reached step to disable BPMP logs (and enable THS2) described in TX2 NX RS232 Communication Problem - #19 by yenchao
nvidia@TX2NX:~$ dmesg | grep ttyTHS
[ 0.992508] 3110000.serial: ttyTHS1 at MMIO 0x3110000 (irq = 33, base_baud = 0) is a TEGRA_UART
[ 0.993437] c280000.serial: ttyTHS2 at MMIO 0xc280000 (irq = 34, base_baud = 0) is a TEGRA_UART
[ 0.994468] 3130000.serial: ttyTHS3 at MMIO 0x3130000 (irq = 35, base_baud = 0) is a TEGRA_UART
But communication seems not to be done over Cutecom (/dev/tyyS0, /dev/ttyTHS1, /dev/ttyTHS3, /dev/ttyTHS2) when looping back Tx and Rx .
Is there anything else that I was missing ?
Best regards,
K.