ARM的M3系列的驱动代码，主要是编写了驱动芯片工作的时钟的设置，文本里面有详细的注释-ARM M3 series driver code, is to write a driver chip clock settings, the text there are detailed notes

STM32F103C8T6自编简单GPIO程序，引用库函数-void RCC_Configuration(void) { SystemInit() RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE) } void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure GPIO_InitStruc