nrf connect 2.91sdk,nrf54l15配置P1.2 P1.3为IIC时，无信号输出。（When nrf connect 2.91sdk and nrf54l15 are configured with P1.2 and P1.3 as IIC, there is no signal output.）

[lu688]

nrf connect 2.91sdk ble mesh ,nrf54l15配置P1.2 P1.3为IIC的数据脚和时钟脚，无信号输出。IIC20 21 22都试了，但都不行，换为其他P1端口任意引脚就可以正常工作，为什么就配置P1.2 P1.3为IIC时不起效？（自己画的nrf54l15板）

Nrf connect 2.91sdk ble mesh , nrf54l15 configuration P1.2 P1.3 for IIC data and clock pins, no signal output. I have tried IIC20 21 and 22, but none of them worked. If I switch to any pin of the other P1 port, it can work normally. Why doesn't it work when configuring P1.2 and P1.3 as IIC? (Self drawn nrf54l15 board)

好奇怪。

[Simonr]

P1.06 as well as P1.04, P1.05 and P1.07 are all used as the UART interface to the debugger on the nRF54L15 DK and can't be used by other peripherals by default. Note that you will lose logging if you remove these, but you can by disabling uart20 in your .overlay file and set these pins as you'd like there.

For reference, on the backside of the nRF54L15 DK you have a silkscreen with an overview of what pins are used for other things by default. Which GPIOs are available on the DK is somewhat restricted I'm afraid. But it's possible to configure most of them.

Best regards,

Simon