Hello team,
I was trying to enable UART 10 on my BBAI running TI Linux SDK by adding
pinmux control node for UART 10 to am5729-beagleboneai.dts file as follow
&dra7_pmx_core {
> uart10_pins: pinmux_uart10_pins {
>
> pinctrl-single,pins = <
>
> DRA7XX_CORE_IOPAD(0x3544, MUX_MODE15) /*driver off shared pin*/
>
> DRA7XX_CORE_IOPAD(0x368C, PIN_OUTPUT_PULLUP | MUX_MODE3) /*
>> uart10_txd.uart10_txd */
>
> DRA7XX_CORE_IOPAD(0x3688, PIN_INPUT_PULLUP | MUX_MODE3) /*
>> uart10_rxd.uart10_rxd */
>
> >;
>
> };
>
> };
&uart10 {
pinctrl-names = "default";
pinctrl-0 = <&uart10_pins>;
status = "okay";
};
with this configuration, UART 10 device was registered under /dev/ttyS9
node. However running a basic 'echo' and 'cat' on this dev didn't give
correct result:
- Test model: loopback Tx <--> Rx
- Send '1234'
am57xx-evm:~# echo '1234' > /dev/ttyS9
- Receive data
am57xx-evm:~# cat /dev/ttyS9
1234
1234
1234
1234
=> This is not correct since we expect to receive a single '1234' while we
got many of this.
Is there anybody running into this issue and know how to fix it.
Thanks in advance
th
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