STM32框架,USING 3.X库 准备以后产品换STM3２,写了个例程,网上的都是零碎的,这个例程可以直接用,不喜欢官方的结构,改了一下.内容有GPIO SYSTIC　EXIT ADC USART FLASH　ＥＥＰＲＯＭ（ＦＬＡＳＨ模拟）．存下以后自已也能用．固件库有点大就不一起上传了．使用MDK4 -STM32 framework, USING 3.X library prepared after the product for STM32, wrote a routine, the

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stm32f103c8t6的全部例程，包括uart，timer，exit，ad/da，dma，i2c，spi等等

利用STM32单片机驱动超声波模块进行测距并通过出口发到电脑上(Using STM32 MCU to drive the ultrasonic module to measure distance and send it to the computer through the exit.)