I need to develop a firmware for nRF52840 dev kit. It includes 1 NAND-Flash and 1 NOR-Flash. These flashes are all controlled via QSPI. I need to get ADC values from one analog front end chip(I have dev kit for it), mainly from 2 channels. This AFE gives 2 analog signals from ECG sensor, I just need to get ADC done from these 2 channels and send those data to mobile via BLE. The data communication protocol is already defined. 2 Flashes are for saving ECG data and recording patient ID, overall count of recordings ... I will provide protocols for saving data on flashes. Someone who is expert in Nordic chip firmware development will not take much time on this project.