SPI

1.SPI协议基础内容

https://mp.weixin.qq.com/s/JsPQsFyupiqthbMVsvmyKw?scene=1&click_id=7

2.嵌入式MCU外设精讲 | 第5篇：SPI通信原理+Flash读写+OLED屏驱动

https://mp.weixin.qq.com/s/_Xj9_f9P6EdhEq1oJqAAow

3.USB与SPI之间如何通信

https://mp.weixin.qq.com/s/hl0J8DBxMrr-_nNL2dNJOA

4.SPI子系统---通讯协议

https://mp.weixin.qq.com/s/74GDy1w5KavSb4hlPMvhJw

5.SPI驱动程序：用GPIO模拟实现

https://mp.weixin.qq.com/s/EHejRSmtR_EnXFFIs4MkRQ