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Problem boot of NanoPI R2S

Hardware Single Board Computers

jon (Jon) 27 January 2022 02:18 6

ARM SBC Support Discussion Single Board Computers

I can reproduce it. Looks like an hardware fault. The rx line collect the data that tx has transmittet and break uboot even if nothing is connected to the debug port. You can work around this by connecting a 10KOhm restistor on the RX line to gnd.

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