收集的一些sd卡的资料，个人感觉还是很有用的，在很多方面的话，具有比较强的可用性，本人利用该资料实现了stm32 sd驱动的开发-Collected sd card data, personal feeling or useful, in many ways, has a strong availability, I use the information-driven development of stm32 sd

神舟I号STM32开发板原理图，超级清楚，非常不错-Shenzhou I, STM32 development board schematics, super-clear, very good!

STM32 GPIO之外部中断程序编写，学习STM32的苦心积累，希望能帮到你。-STM32- External GPIO interrupt the programming, learning STM32 painstakingly accumulated, I hope you can help.