https://devzone.nordicsemi.com/f/nordic-q-a/489/nrf51822-spi-interrupt-based-communicationHi, does a code example or app-note exists that describes how to configure the SPI peripheral to use an ISR to transmit data to a SPI slave? Thank you in advance!en-USTelligent Community 13Thu, 19 Sep 2013 11:45:14 GMThttps://devzone.nordicsemi.com/thread/2558?ContentTypeID=1Thu, 19 Sep 2013 11:45:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a2d752eb-977a-48bd-90f6-bcf18190941aovrebekk<p>At what frequency do you want to use the SPI?</p> <p>Unless you plan to run the SPI at a slow rate using an ISR will just slow down the transaction.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/2559?ContentTypeID=1Thu, 19 Sep 2013 10:24:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7e42694c-4348-440c-87e5-d662019e6c91Matthieu Tardivon<p>I have recently coded it, the easiest way is to inspire yourself from the file found at this path: C:\Nordic Semiconductor\nRF51 SDK_v4.4.0.30888\Nordic\nrf51822\Source\app_common\app_uart.c it uses interrupts for UART communication which is transposable to SPI.</p><div style="clear:both;"></div>