hi TX2 UARTD can not send data, can you help me thanks!

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

hi guys!

we need use tx2 uartd to send data, so we enable it in the dts（decode from dtb）, but it cannot work , can you help me? thanks!

serial@3130000 {
	compatible = "nvidia,tegra186-hsuart";
	#stream-id-cells = <0x1>;
	reg = <0x0 0x3130000 0x0 0x40>;
	reg-shift = <0x2>;
	interrupts = <0x0 0x73 0x4>;
	nvidia,memory-clients = <0xe>;
	dmas = <0x19 0x13 0x19 0x13>;
	dma-names = "tx";
	clocks = <0xd 0x4d 0xd 0x10d>;
	clock-names = "serial", "parent";
	resets = <0xd 0x32>;
	reset-names = "serial";
	status = "okay";
	nvidia,adjust-baud-rates = <0x1c200 0x1c200 0x64>;
	linux,phandle = <0x83>;
	phandle = <0x83>;
};

we also enable other uart , uart1(/dev/ttyS0), uart3(/dev/ttyTHS2), uart6(/dev/ttyTHS5) can work, the others cannot, thanks!

2

hello 691283383,

you could communicate using Tegra uart, please refer to NVIDIA Jetson TX2 J21 Header Pinout - JetsonHacks.
suggest you refer to similar issue, such as Topic 1025894, and Topic 1056970 for setting up serial communication.
thanks

3

In Jetson TX2, UART3(H10/UART3_TX H9/UART3_RX) can’t work, but others can work. suck UART0/UART1/UART2/UART7
Have you resovled the problem

4

In Jetson TX2, UART3(H10/UART3_TX H9/UART3_RX) can’t work, but others can work. suck UART0/UART1/UART2/UART7
Have you resovled the problem???