https://devzone.nordicsemi.com/f/nordic-q-a/6196/connection-between-nrf51822-and-nrf6929Hi, I am trying to connect the demo board nrf6929 to my demo nrf51822 (PCA10001). In nrfready_voice_input_module_user_guide I couldn&#39;t find any information about updating the ST micro using the Segger J-link placed on the demoboard, is it possible?en-USTelligent Community 13Tue, 24 Mar 2015 14:04:31 GMThttps://devzone.nordicsemi.com/thread/21692?ContentTypeID=1Tue, 24 Mar 2015 14:04:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6746f1ce-89fa-4826-a0af-bc8367ef1c5fHung Bui<p>Hi Lorens,</p> <p>To update firmware for the STMicro chip on PCA63506 you would need an external Jlink programmer as described at chapter 6 in the voice input module userguide.</p> <p>The connection between the STmicro and the nRF51822 is UART but we currently don&#39;t have an example firmware for the PCA10001 to interface with the voice module. I guess you can refer to the firmware we have with the smart remote to strip down and match the pin configuration with the PCA10001.</p><div style="clear:both;"></div>