Is there any SPI examples by directly accessing the registers?

[Hansome]

Is there any SPI examples by directly accessing the registers?

Based on SDK15.0.2, for NRF52832 or NRF52810,  higher freedom, higher memory utilization.

[Jimmy Wong]

Hi, 

You can use the GPIO emulate the SPI driver in order to save the code size.

Just like this example to use the GPIO to drive SPI flash.

https://github.com/jimmywong2003/nrf5-external-spi-flash-bootloader/tree/master/sdk_mod/spi_driver