https://devzone.nordicsemi.com/f/nordic-q-a/51852/c-program-to-write-and-read-from-onboard-spi-eeprom-i-am-using-nrf52840Hello guys, i am trying to write a c code to read and write data to the onboard memory. i am using nrf52840 and segger embedded studio. i have used sio pins 41, 40, 04, 44 for SCK, MOSI, MISO and CS respectively. i have done the initial GPIO configurationsen-USTelligent Community 13Mon, 09 Sep 2019 08:07:40 GMThttps://devzone.nordicsemi.com/thread/208594?ContentTypeID=1Mon, 09 Sep 2019 08:07:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:620e4d70-ed6c-4ef0-bf2f-315d3719ef4covrebekk<p>Hi</p> <p>You mean you want to access the 8MB Macronix flash device on the&nbsp;nRF52840 Devkit?</p> <p>This device uses different pins than the ones you list, this is printed on the back of the DK.&nbsp;</p> <p>I had a similar case recently where I shared some code to access this device over SPI:<br /><a href="https://devzone.nordicsemi.com/f/nordic-q-a/50734/interface-external-flash-to-nrf52832">https://devzone.nordicsemi.com/f/nordic-q-a/50734/interface-external-flash-to-nrf52832</a></p> <p>The code is available here:<br /><a href="https://devzone.nordicsemi.com/cfs-file/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-174e774b861f4256af5e505f8c1151bf/DZ233955_5F00_ble_5F00_app_5F00_uart_5F00_v2.zip">devzone.nordicsemi.com/.../DZ233955_5F00_ble_5F00_app_5F00_uart_5F00_v2.zip</a></p> <p>And if this is not what you are trying to do just let me know, and I will do what I can to help <span class="emoticon" data-url="https://devzone.nordicsemi.com/cfs-file/__key/system/emoji/1f642.svg" title="Slight smile">&#x1f642;</span></p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>