stm32双串口与CC2541蓝牙模块通信

该代码基于正点原子mini开发板，开启串口一和串口3，串口3接CC2541蓝牙模块，串口调试小助手选择的是串口1（PA8,PA9），像上位机发信息，串口1收到上位机信息后，通过串口3发给蓝牙

#include“led.h“
#include“usart.h“
#include
#include

void led_init（void）
{
	GPIO_InitTypeDef GPIO_InitStructure;
	RCC_APB2PeriphClockCmd（RCC_APB2Periph_GPIOAENABLE）;
	
	GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8;
	GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
	GPIO_Init（GPIOA&GPIO_InitStructure）;
	
	LED_OFF（）;//GPIO_SetBits（GPIOAGPIO_Pin_8）;
}

 属性            大小     日期    时间   名称
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     目录           0  2017-09-13 15:20  bluetooth3-2usart\
     文件       75422  2017-09-13 15:20  bluetooth3-2usart\bluetoot-2usart.uvguix.acer
     文件        7451  2017-09-13 15:20  bluetooth3-2usart\bluetoot-2usart.uvoptx
     文件       20871  2017-09-13 15:20  bluetooth3-2usart\bluetoot-2usart.uvprojx
     文件         447  2017-09-10 16:20  bluetooth3-2usart\led.c
     文件         190  2017-09-10 16:20  bluetooth3-2usart\led.h
     目录           0  2017-09-10 16:21  bluetooth3-2usart\Listings\
     文件       79106  2017-09-13 15:14  bluetooth3-2usart\Listings\bluetoot-2usart.map
     文件       55032  2017-09-13 15:14  bluetooth3-2usart\Listings\startup_stm32f10x_hd.lst
     文件         359  2017-09-13 15:20  bluetooth3-2usart\main.c
     目录           0  2017-09-13 15:14  bluetooth3-2usart\objects\
     文件      286140  2017-09-13 15:14  bluetooth3-2usart\objects\bluetoot-2usart.axf
     文件        4308  2017-09-13 15:14  bluetooth3-2usart\objects\bluetoot-2usart.build_log.htm
     文件       49122  2017-09-13 15:14  bluetooth3-2usart\objects\bluetoot-2usart.htm
     文件         568  2017-09-13 15:14  bluetooth3-2usart\objects\bluetoot-2usart.lnp
     文件         479  2017-09-10 16:03  bluetooth3-2usart\objects\bluetoot-2usart.sct
     文件       20519  2017-09-13 15:14  bluetooth3-2usart\objects\bluetoot-2usart_Target 1.dep
     文件      268296  2017-09-13 15:14  bluetooth3-2usart\objects\led.crf
     文件        1476  2017-09-13 15:14  bluetooth3-2usart\objects\led.d
     文件      292072  2017-09-13 15:14  bluetooth3-2usart\objects\led.o
     文件      268218  2017-09-13 15:14  bluetooth3-2usart\objects\main.crf
     文件        1495  2017-09-13 15:14  bluetooth3-2usart\objects\main.d
     文件      292108  2017-09-13 15:14  bluetooth3-2usart\objects\main.o
     文件      268721  2017-09-13 15:14  bluetooth3-2usart\objects\misc.crf
     文件        1611  2017-09-13 15:14  bluetooth3-2usart\objects\misc.d
     文件      296600  2017-09-13 15:14  bluetooth3-2usart\objects\misc.o
     文件          81  2017-09-13 15:14  bluetooth3-2usart\objects\startup_stm32f10x_hd.d
     文件        6860  2017-09-13 15:14  bluetooth3-2usart\objects\startup_stm32f10x_hd.o
     文件      272219  2017-09-13 15:14  bluetooth3-2usart\objects\stm32f10x_gpio.crf
     文件        1801  2017-09-13 15:14  bluetooth3-2usart\objects\stm32f10x_gpio.d
     文件      317828  2017-09-13 15:14  bluetooth3-2usart\objects\stm32f10x_gpio.o
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