I am using the X-NUCLEO-IDB04A1 with Nucleo STM32F103 and the available demos are only for F4, L0 and L4. This is fine as I want to learn about programming bluetooth anyway. The BLUENRG chip on the expansion board is also a MCU and can be programmed.
My question is: Do I need to program both devices and if so how, or can I treat the BLUENRG as a simple peripheral and control with standard SPI? Does the BLUENRG need to be programmed or is that only when using it as an MCU?