Enabling Standalone Operation

Platform overview with the three uControllers and flash memory.

A key feature of our biomedical acquisition and processing platform is standalone operation: The system must be able to provide all required supply voltages and clock frequencies without external components. Furthermore, the three involved uControllers must load their program code from non-volatile storage. The commercial radio SoC has integrated flash memory for this purpose; our two own ASICs share the discrete multi-Gigabit NAND flash that is also used for data storage.

We have all the key requirements for standalone operation in place (programmable voltage converters, oscillators and boot loaders); in this project you are going to put them all together. The goal is to demonstrate startup and operation of the platform with only a Li-ion connected.