Using GPIOs marked as "standard drive, low frequency" for SPI on nrf52840

[Akshay]

I want to understand the meaning of "standard drive, low frequency" GPIO pins. The datasheet mentions to use these pins for frequencies below 10 KHz. Does this limitation apply if I use SPIM on these pins? I tried running the SPIM at 8MHz and did not see any problem. Is it recommended to use only high frequency pins for SPIM?

[Simonr]

Hi

When using the radio on the nRF, you should avoid using the standard drive, low-frequency pins for anything above 10kHz, as it is likely to interfere with the radio and decrease radio performance. SPI and other demanding peripherals should be configured to use the regular GPIOs that can run in high drive and high-frequency without interfering with the radio.

Best regards,

Simon

[AparnaAnand]

Thanks for confirming on this!