https://devzone.nordicsemi.com/f/nordic-q-a/591/gpiote-ppi-questionIn my design, I have a SPI flash connected to the NRF51822. Additionally, the NRF51822 is connected to a separate microprocessor that needs to be able to access the SPI flash directly to boot. One solution I was hoping could work is to use the GPIOTEen-USTelligent Community 13Thu, 24 Oct 2013 19:40:43 GMThttps://devzone.nordicsemi.com/thread/3073?ContentTypeID=1Thu, 24 Oct 2013 19:40:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b8df86df-bf36-492f-a24d-d13f12ad4057Dan B<p>Yes, the nRF51822 is connected to 2 separate SPI buses, one as a master and one as a slave. With only 4 GPIOTE&#39;s available, I can&#39;t see how this is possible. Fortunately, I&#39;ve been able to solve this problem using the latest version of the nRF51822, which has SPI slave HW.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/3072?ContentTypeID=1Mon, 21 Oct 2013 12:06:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4e272624-5e9f-4b98-8153-a169ca2ffb47Audun<p>Just to clarify: the nRF51822 is connected to 2 separate SPI buses, one bus going to the other MCU, and another bus going to the flash?</p><div style="clear:both;"></div>