B-L475E-IOT01A开发板用户手册,非常详尽，附有10多页的完整原理图，每个模块功能介绍很详细，不错的学习资料UM2153
Contents
7.12.2 Capacitive digital sensor for relative humidity and
temperature(HTS221)
25
7. 12.3 High-performance 3-axis magnetometer(LIS3MDL
25
7. 12. 4 3D accelerometer and 3D gyro
STM32 F3产品技术培训-13.DMA模块DMA Features 3
12 independently configurable channels: hardware requests or software trigger on each
channel
DMA1:7 Channels
DMA2:5 Channels
Software programmable priorities: Very high, High, Medium or Low(Hardware priority in
