STM32串口接收数据并使用

2017-9-3 18:42:28 4300 STM32 串口通信 C语言编程

0 #include "led.h" #include "delay.h" #include "key.h" #include "sys.h" #include "usart.h" #include "mpu6050.h" #include "inv_mpu.h" #include "inv_mpu_dmp_motion_driver.h" #include "Motorinit.h" #include "usart_170.h" #include "pid.h" #include "timer.h" #include "motor_pid.h" #include "math.h" #include "control.h" #include "adc.h" #include "relay.h" /* ******************************************************************* Design dy: GDOU-Lin桑 2017-9-2 ******************************************************************* / //ËÙ¶È£¬·½Ïò£¬¿ª¹ØÊý¾Ý u8 rate,derection,key,redata;; int flag=1; float pitch,roll,yaw; //Å·À½Ç int t=1; short aacx,aacy,aacz; //¼ÓËÙ¶È´«¸ÐÆ÷ÔÊ¼Êý¾Ý short gyrox,gyroy,gyroz; //ÍÓÂÝÒÇÔÊ¼Êý¾Ý u16 adc1,adc2; float data1,data2; int main(void) { NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //ÉèÖÃNVICÖÐ¶Ï·Ö×é2:2Î»ÇÀÕ¼ÓÅÏÈ¼¶£¬2Î»ÏìÓ¦ÓÅÏÈ¼¶ uart_init(115200); Usart_170_Init(9600); delay_init(); //ÑÓÊ±³õÊ¼»¯ LED_Init(); //³õÊ¼»¯ÓëLEDÁ¬½ÓµÄÓ²¼þ½Ó¿Ú MPU_Init(); //³õÊ¼»¯MPU6050 Adc_Init(); //ADC³õÊ¼»¯ TIM3_PWM_Init(19999,71); //Ê¹ÓÃµçµ÷½øÐÐ¿ØÖÆÊ±µÄ·ÖÆµ TIM2_PWM_Init(199,7199); //Ê¹ÓÃË®±ÃÊÇµÄPWM¿ØÖÆ TIM4_Int_Init(5000-1,71); //Ê¹ÓÃÖÐ¶Ï±£³ÖÆ½ºâ Motor_init(); //µç»úµçµ÷³õÊ¼»¯ // while(mpu_dmp_init()) // ; while(1) { //printf("Start£¡"); //´®¿Ú½ÓÊÕÖ¸ÁîÒÔ¼°Êý¾ÝµÄ´«Êä //Ïà¹ØADCÊýÖµµÄ»ñÈ¡ data_get(); // printf("%d ",redata); printf("%d %d %dn",rate,derection,key); // ratecontrol(rate); //ËÙ¶È¿ØÖÆ // keycontrol(key); //¿ª¹Ø¿ØÖÆ // derectioncontrol(derection);//·½Ïò¿ØÖÆ } } #include "usart_170.h" #include "usart.h" #include "led.h" /* ************************************ * @brief ³õÊ¼»¯´®¿Ú2 * @param baudrate£º²¨ÌØÂÊ * @retval None ************************************ / extern u8 rate,derection,key; extern u8 redata; extern u16 adc1,adc2; extern float data1,data2; //ËÙ¶È£¬·½Ïò£¬¿ª¹ØÊý¾Ý #if EN_USART2_RX //Èç¹ûÊ¹ÄÜÁË½ÓÊÕ //´®¿Ú1ÖÐ¶Ï·þÎñ³ÌÐò //×¢Òâ,¶ÁÈ¡USARTx->SRÄÜ±ÜÃâÄªÃûÆäÃîµÄ´íÎó u8 USART_RX_BUF[USART2_REC_LEN]; //½ÓÊÕ»º³å,×î´óUSART_REC_LEN¸ö×Ö½Ú. //½ÓÊÕ×´Ì¬ //bit15£¬ ½ÓÊÕÍê³É±êÖ¾ //bit14£¬ ½ÓÊÕµ½0x0d //bit13~0£¬ ½ÓÊÕµ½µÄÓÐÐ§×Ö½ÚÊýÄ¿ u16 USART_RX_STA=0; //½ÓÊÕ×´Ì¬±ê¼Ç void Usart_170_Init(u32 baudrate) { GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE); //Ê¹ÄÜUSART1£¬GPIOAÊ±ÖÓ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); //USART1_TX GPIOA.9 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; //PA.9 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //¸´ÓÃÍÆÍìÊä³ö GPIO_Init(GPIOA, &GPIO_InitStructure);//³õÊ¼»¯GPIOA.9 //USART1_RX GPIOA.10³õÊ¼»¯ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;//PA10 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//¸¡¿ÕÊäÈë GPIO_Init(GPIOA, &GPIO_InitStructure);//³õÊ¼»¯GPIOA.10 //Usart1 NVIC ÅäÖÃ NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3 ;//ÇÀÕ¼ÓÅÏÈ¼¶3 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //×ÓÓÅÏÈ¼¶3 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQÍ¨µÀÊ¹ÄÜ NVIC_Init(&NVIC_InitStructure); //¸ù¾ÝÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯VIC¼Ä´æÆ÷ //USART ³õÊ¼»¯ÉèÖÃ USART_InitStructure.USART_BaudRate = baudrate;//´®¿Ú²¨ÌØÂÊ USART_InitStructure.USART_WordLength = USART_WordLength_8b;//×Ö³¤Îª8Î»Êý¾Ý¸ñÊ½ USART_InitStructure.USART_StopBits = USART_StopBits_1;//Ò»¸öÍ£Ö¹Î» USART_InitStructure.USART_Parity = USART_Parity_No;//ÎÞÆæÅ¼Ð£ÑéÎ» USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//ÎÞÓ²¼þÊý¾ÝÁ÷¿ØÖÆ USART_InitStructure.USART_Mode = USART_Mode_Rx \| USART_Mode_Tx; //ÊÕ·¢Ä£Ê½ USART_Init(USART2, &USART_InitStructure); //³õÊ¼»¯´®¿Ú1 USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);//¿ªÆô´®¿Ú½ÓÊÜÖÐ¶Ï // USART_ITConfig(USART1, USART_IT_IDLE, ENABLE);//¿ªÆô´®¿Ú½ÓÊÜÖÐ¶Ï USART_Cmd(USART2, ENABLE); } void usart_170_send_char(u8 c) { while (USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET); //Ñ»··¢ËÍ,Ö±µ½·¢ËÍÍê±Ï USART_SendData(USART2, c); } //Êý¾Ý½ÓÊÕ²¢´¦Àí u8 com_data; u8 len; char Reveive_Buff[6]; int i=0; void USART2_IRQHandler(void) //´®¿Ú1ÖÐ¶Ï·þÎñ³ÌÐò { #if SYSTEM_SUPPORT_OS //Èç¹ûSYSTEM_SUPPORT_OSÎªÕæ£¬ÔòÐèÒªÖ§³ÖOS. OSIntEnter(); #endif // if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) //½ÓÊÕÖÐ¶Ï(½ÓÊÕµ½µÄÊý¾Ý±ØÐëÊÇ0x0d 0x0a½áÎ²) // { // // USART_ReceiveData(USART2); // redata=USART2->DR; //¶Á³öÊý¾Ý //// redata=USART_ReceiveData(USART2); //// //¶ÁÈ¡½ÓÊÕµ½µÄÊý¾Ý //// // } // //// while(!(USART2->SR & (1<<5)));//µÈ´ý½ÓÊÕµ½Êý¾Ý // rate=(redata&0x80); // derection=(redata&0x7c)>>2; // key=(redata&0x03); // // // LED1=!LED1; if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) //½ÓÊÕÖÐ¶Ï(½ÓÊÕµ½µÄÊý¾Ý±ØÐëÊÇ0x0d 0x0a½áÎ²) { USART_ReceiveData(USART2); //¶ÁÈ¡½ÓÊÕµ½µÄÊý¾Ý Reveive_Buff[i] = USART2->DR; i=i+1; } if (i == 6) { USART1->DR = 0; USART1->SR = 0; i=0; rate=Reveive_Buff[2]; key=Reveive_Buff[3]; derection=3; LED0=!LED0; } #if SYSTEM_SUPPORT_OS //Èç¹ûSYSTEM_SUPPORT_OSÎªÕæ£¬ÔòÐèÒªÖ§³ÖOS. OSIntExit(); #endif } #endif 复制代码* 实用！！！ 0
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