Our own design of the development board UART port is not enough
Use SPI2 to make uart port
But when I modified pinmux, the generated pinmux could not associate uart7 with this port of SPI2. How do we solve this?
Another problem is that uart7 is defined as uarth in the device tree
But in the pinmux excel file, it is defined as UG3
Is that a problem?
Look here:
https://www.nxp.com/part/SC16IS762IBS#/
SPI to Dual UART Bridge
This might solve your problem. If you have multiple CS pins for that SPI you could add more than one chip.
Does this function require SPI to Dual UART SPI to Dual UART Bridge?
Our design is also used on Xavier . There is no Bridge either
Can’t this be solved by directly modifying pinmux?
I can’t prove that that uart directly won’t work. But if you fail you still have a solution for your problem.
Hi Yanhou.LI,
Are you using the custom board for AGX Orin?
What’s your Jetpack version in use?
May I know what’s your use case and how may UART interface would you need?
For AGX Orin, there’re 5 UART interface available to be used.
You could refer to the following thread for details.
Unable to correspond to "func" and "uart_tx" - #3 by KevinFFF
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