https://devzone.nordicsemi.com/f/nordic-q-a/83171/writing-external-flash-qspiI have an external flash S25FL132K I am able to read , write and erase the flash with nrfx_qspi_cinstr_xfer function for 9 bytes. But I want to write more than 9 bytes(NRF_QSPI_CINSTR_LEN_9B) of data so I tried using nrfx_qspi_write and nrfx_qspi_cinstr_xferen-USTelligent Community 13Tue, 28 Dec 2021 17:33:08 GMThttps://devzone.nordicsemi.com/thread/345290?ContentTypeID=1Tue, 28 Dec 2021 17:33:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dd2782cc-3358-4afb-a666-a98936147bd3Priyanka<p>Hi Om,</p> <p>You could take a look at the long frame mode (&nbsp;<a title="https://developer.nordicsemi.com/nrf_connect_sdk/doc/latest/nrfx/drivers/qspi/driver.html?highlight=nrfx_qspi_lfm_xfer#:~:text=nrfx_err_tnrfx_qspi_lfm_xfer(void,p_rx_buffer%2c%20size_ttransfer_length%2c%20boolfinalize)" href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfx/drivers/qspi/driver.html?highlight=nrfx_qspi_lfm_xfer#:~:text=nrfx_err_tnrfx_qspi_lfm_xfer(void,p_rx_buffer%2C%20size_ttransfer_length%2C%20boolfinalize)" rel="noopener noreferrer" target="_blank">nrfx_qspi_lfm_xfer</a><span>&nbsp;)</span> in the QSPI driver. This could help in implementing custom byte length.</p> <p>Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>