what pins should I connect to to be able to use ttyTSH2. I am able to use ttyTSH1 when connected to pin 8 and 10 of J41.
It’s pin3 and pin4 of optional connector J50 as you can see in the schematic.https://developer.nvidia.com/jetson-nano-carrier-board-design-files
the Jetson nano dev kit does not have J50 connetor. How do I test the ttyTSH2 on the Jatson Nano dev kit and how do I get access the the pins for this uart device.
What’s your board version? If it is A02, then the pin 4 and 5 of J44 are UART1_RX and TX, if it is B01, then the pin 3 and pin 4 of J50 (only pads on board).
my board version is A02. what nano pins the uarts are using? and which Nono pins in reference design I need to use for software driver ttyTSH1 and ttyTSH2.
my understanding is as follow:
UART0 uses Tx=203, Rx=205
UART1 uses Tx=99, Rx=101
UART2 uses Tx=236, Rx=238
I am using dev kit board A02
what jumpers and pins I need to test for UART0, UART1, UART2
It seems that module pins 236 and 238 are used for the debug UART2 and uses /dev/ttyS0.
and module pins 203 and 205 are used for the debug UART0 and uses /dev/ttyTHS1.
what I need now to to verify that UART1 uses module pins 99 and 101 and uses /dev/ttyTHs2. where can I access these pins on Jatson Nano rev A02 .
thanks for your help.
UART1 is routed to pin32 (TX), pin22 (RX) of M.2 Key E connector (J18).