https://devzone.nordicsemi.com/f/nordic-q-a/73943/program-custom-board-nrf52811-with-pca10040Hi, I have a custom board running with the nrf52832. To program it I&#39;m using the nrf52DK board with the PCA10040 and the bootloader is based on the one found in examples/dfu/secure_bootloader/pca10040_ble so using the softdevice s132 Due to theen-USTelligent Community 13Wed, 14 Apr 2021 13:40:39 GMThttps://devzone.nordicsemi.com/thread/304858?ContentTypeID=1Wed, 14 Apr 2021 13:40:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f89fad1f-fe45-47cc-abe7-ef0b9608c2f0Vidar Berg<p>Hi,</p> <p>It should not be any problem to use the&nbsp; nrf52DK PCA10040 for programming of the 52811 IC, but you will obviously need some FW&nbsp; that&#39;s correctly configured for this chip variant (correct startup files and linker configuration). Are you sure you will be needing the s140 Softdevice, and not the smaller s112 or s113 variant? There won&#39;t be much room left for the application if you use the s140 as you can see from the standard memory layouts here &quot;<span><a title="Memory layout" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_bootloader.html?cp=7_1_3_5_0_7#lib_bootloader_memory">Memory layout</a></span>&quot;</p> <p>Best regards,</p> <p>Vidar</p> <p></p><div style="clear:both;"></div>