Hi,
I am developing a sensor board that includes an STM32U575CGTx MCU, an IMU, a microSD card slot, USB, and a battery (rough schematic attached). If you have a better suggestion for the MCU, please feel free to suggest it. The data logging rate is relatively low at 60 kB/s, and the IMU sample rate is 1600 Hz.
The basic requirements for the sensor board are as follows:
- Act as a USB mass storage device when connected to a computer.
- Charge the battery whenever a USB cable is connected.
- The MCU should read the battery voltage and act according to instructions.
ChatGPT suggested the following steps to achieve these requirements:
- Set up the USB stack on the STM32U5 microprocessor to act as a USB device and implement the MSD class. There are several libraries available, such as the STMicroelectronics USB Host and Device Library or the FatFs library.
- Implement the interface between the microprocessor and the microSD card. This can be done using the SDIO interface or SPI.
- Use the FatFs library to read the contents of the microSD card and create a virtual file system on the microprocessor.
- Respond to the appropriate MSD requests from the host computer, such as reading the directory structure and reading the contents of files.
- Send the appropriate responses to the host computer in the correct format.
- Handle any errors or exceptions that may occur during the process.
I must point out that I am not highly skilled in programming, although I have completed a similar project using Arduino. This project is a step towards more professional development. Could you point me towards any examples or specific paragraphs in datasheets that may be helpful?
EDIT: more specific questions will follow as the project goes on.
