I'm trying to make my own nucleo board using STM32F303ZET6. I have downloaded and inspected the schematic documents that stm shared. I will use this board as rocket flight computer so I want the board to be able to:
- Read sensor data using I2C. (BMP180,BMP280,LSM6DS33,BNO055)
- Use SPI port for the RF module and SD card.
- Use UART port to read GPS data from NEO-M8N.
All the screenshots that I have posted here are from the STM32F303ZE schematic. You can click here. For the programming part of this board I want to use the STLink V2 part from the original NUCLEO-F303ZE. So I will just rip the part off the pcb and use it externally. And then I will have jumpers from the programmer board to my board to be able to program my board.
* Question #2: Can I just connect all the VDD and VDDA to 3V3, connect all the VSS and the VSSA to GND? Question #3: On the schematic there are 2 oscillators for the MCU. 8MHz and 32.768KHz (Is the 32.768KHz oscillator 32MHz or 32KHz? I don't understand the notation.) I want to use the MCU at 72MHz clock speed but I don't understand how that can be reached with these external oscillators. Can I reach this value with the internal clock? If I want to use te internal clock should I remove the oscillators?
Question #4: I have seen opamps on the schematic do I need it for the functions that I have listed above?