How to set p00 and p01 as general GPIO

[Brian Qin]

Hi,

I have a project with 52810 which I use rc for LF clock source and I need use P00 and P01 as general GPIO,  I have set both CLOCK_CONFIG_XTAL_FREQ and NRF_SDH_CLOCK_LF_SRC to 0 , and the system works well, but I find I can't use P00,and P01 as normal GPIO, whenever I set it output 0 or ouput 1, I always measured 1.0v about at the pin, is there other setting I missed? 

Thanks!

Brian Qin

[Vidar Berg]

Hi Brian,

Please check the NRF_CLOCK->LFCLKSRC to make sure that the code is using the internal RC OSC. Note that the nrf_drv_clock will request the XTAL by default, in case you are using it in your app.  Are these pins connected to anything on your board? 

[Brian Qin]

Hi, Vidar:

thanks!, it is ok now.

Brian Qin