Hi, We're using the SPI to communicate with a device that, when powered up, supports only up to 3Mbps SPI frequency , but after a while can work with higher frequencies. Is it possible to change the SPI Master frequency on the fly with the nRF51822? I've tried changing the FREQUENCY field in the struct (from 2Mbps to 4Mbps), but it seems to have no effect.
Thanks!