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说明:每发送一次数据,LED等闪烁一下 /**说明: /* *说明: *PA0:KEY1;PA1:KEY2; *PA2:LED1;PA3:LED2; *PA9:USART1_TX;PA10:USART1_RX */ #include "stm32f10x.h" #include "stm32f10x_rcc.h" #include "stm32f10x_gpio.h" #include "stm32f10x_usart.h" #include "system_stm32f10x.h" #include "stdio.h" #define PUTCHAR_PROTOTYPE int __io_putchar(int ch) void RCC_Configuration(void); void GPIO_Configuration(void); void delay_ms(u16 time); void USART_Configuration(void); int main() { SystemInit(); RCC_Configuration(); GPIO_Configuration(); USART_Configuration(); while(1) //循环逐字输出,到结束字' |