pikapython/bsp/stm32f103rb/SYSTEM/usart/usart.c

#include "sys.h"
#include "usart.h"	
////////////////////////////////////////////////////////////////////////////////// 	 
//<2F><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>ucos,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>.
#if SYSTEM_SUPPORT_OS
#include "includes.h"					//ucos ʹ<><CAB9>	  
#endif
//////////////////////////////////////////////////////////////////////////////////	 
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB>ѧϰʹ<CFB0>ã<EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA><EFBFBD>;
//ALIENTEK STM32<33><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>1<EFBFBD><31>ʼ<EFBFBD><CABC>		   
//<2F><><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>@ALIENTEK
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳:www.openedv.com
//<2F>޸<EFBFBD><DEB8><EFBFBD><EFBFBD><EFBFBD>:2012/8/18
//<2F>汾<EFBFBD><E6B1BE>V1.5
//<2F><>Ȩ<EFBFBD><C8A8><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؾ<EFBFBD><D8BE><EFBFBD>
//Copyright(C) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿƼ<D3BF><C6BC><EFBFBD><EFBFBD>޹<EFBFBD>˾ 2009-2019
//All rights reserved
//********************************************************************************
//V1.3<EFBFBD>޸<EFBFBD>˵<EFBFBD><EFBFBD> 
//֧<><D6A7><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>ͬƵ<CDAC><C6B5><EFBFBD>µĴ<C2B5><C4B4>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
//<2F><><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD>printf<74><66>֧<EFBFBD><D6A7>
//<2F><><EFBFBD><EFBFBD><EFBFBD>˴<EFBFBD><CBB4>ڽ<EFBFBD><DABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EEB9A6>.
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>printf<74><66>һ<EFBFBD><D2BB><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ʧ<EFBFBD><CAA7>bug
//V1.4<EFBFBD>޸<EFBFBD>˵<EFBFBD><EFBFBD>
//1,<2C>޸Ĵ<DEB8><C4B4>ڳ<EFBFBD>ʼ<EFBFBD><CABC>IO<49><4F>bug
//2,<2C>޸<EFBFBD><DEB8><EFBFBD>USART_RX_STA,ʹ<>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>Ϊ2<CEAA><32>14<31>η<EFBFBD>
//3,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>USART_REC_LEN,<2C><><EFBFBD>ڶ<EFBFBD><DAB6>崮<EFBFBD><E5B4AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5>ֽ<EFBFBD><D6BD><EFBFBD>(<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2<EFBFBD><32>14<31>η<EFBFBD>)
//4,<2C>޸<EFBFBD><DEB8><EFBFBD>EN_USART1_RX<52><58>ʹ<EFBFBD>ܷ<EFBFBD>ʽ
//V1.5<EFBFBD>޸<EFBFBD>˵<EFBFBD><EFBFBD>
//1,<2C><><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD>UCOSII<49><49>֧<EFBFBD><D6A7>
////////////////////////////////////////////////////////////////////////////////// 	  
 

//////////////////////////////////////////////////////////////////
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><C2B4><EFBFBD>,֧<><D6A7>printf<74><66><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫѡ<D2AA><D1A1>use MicroLIB	  
#if 1
#pragma import(__use_no_semihosting)             
//<2F><>׼<EFBFBD><D7BC><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>֧<EFBFBD>ֺ<EFBFBD><D6BA><EFBFBD>                 
struct __FILE 
{ 
	int handle; 

}; 

FILE __stdout;       
//<2F><><EFBFBD><EFBFBD>_sys_exit()<29>Ա<EFBFBD><D4B1><EFBFBD>ʹ<EFBFBD>ð<EFBFBD><C3B0><EFBFBD><EFBFBD><EFBFBD>ģʽ    
void _sys_exit(int x) 
{ 
	x = x; 
} 
//<2F>ض<EFBFBD><D8B6><EFBFBD>fputc<74><63><EFBFBD><EFBFBD> 
int fputc(int ch, FILE *f)
{      
	while((USART1->SR&0X40)==0);//ѭ<><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,ֱ<><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>   
    USART1->DR = (u8) ch;      
	return ch;
}
#endif 


#if EN_USART1_RX   //<2F><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>˽<EFBFBD><CBBD><EFBFBD>
//<2F><><EFBFBD><EFBFBD>1<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//ע<><D7A2>,<2C><>ȡUSARTx->SR<53>ܱ<EFBFBD><DCB1><EFBFBD>Ī<EFBFBD><C4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>   	
u8 USART_RX_BUF[USART_REC_LEN];     //<2F><><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD>,<2C><><EFBFBD><EFBFBD>USART_REC_LEN<45><4E><EFBFBD>ֽ<EFBFBD>.
//<2F><><EFBFBD><EFBFBD>״̬
//bit15<31><35>	<09><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɱ<EFBFBD>־
//bit14<31><34>	<09><><EFBFBD>յ<EFBFBD>0x0d
//bit13~0<><30>	<09><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>Ŀ
u16 USART_RX_STA=0;       //<2F><><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>	  

u8 aRxBuffer[RXBUFFERSIZE];//HAL<41><4C>ʹ<EFBFBD>õĴ<C3B5><C4B4>ڽ<EFBFBD><DABD>ջ<EFBFBD><D5BB><EFBFBD>
UART_HandleTypeDef UART1_Handler; //UART<52><54><EFBFBD><EFBFBD>
  
//<2F><>ʼ<EFBFBD><CABC>IO <20><><EFBFBD><EFBFBD>1 
//bound:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void uart_init(u32 bound)
{	
	//UART <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	UART1_Handler.Instance=USART1;					    //USART1
	UART1_Handler.Init.BaudRate=bound;				    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	UART1_Handler.Init.WordLength=UART_WORDLENGTH_8B;   //<2F>ֳ<EFBFBD>Ϊ8λ<38><CEBB><EFBFBD>ݸ<EFBFBD>ʽ
	UART1_Handler.Init.StopBits=UART_STOPBITS_1;	    //һ<><D2BB>ֹͣλ
	UART1_Handler.Init.Parity=UART_PARITY_NONE;		    //<2F><><EFBFBD><EFBFBD>żУ<C5BC><D0A3>λ
	UART1_Handler.Init.HwFlowCtl=UART_HWCONTROL_NONE;   //<2F><>Ӳ<EFBFBD><D3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	UART1_Handler.Init.Mode=UART_MODE_TX_RX;		    //<2F>շ<EFBFBD>ģʽ
	HAL_UART_Init(&UART1_Handler);					    //HAL_UART_Init()<29><>ʹ<EFBFBD><CAB9>UART1
	
	HAL_UART_Receive_IT(&UART1_Handler, (u8 *)aRxBuffer, RXBUFFERSIZE);//<2F>ú<EFBFBD><C3BA><EFBFBD><EFBFBD>Ὺ<EFBFBD><E1BFAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϣ<D0B6><CFA3><EFBFBD>־λUART_IT_RXNE<4E><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><C3BD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  
}

//UART<52>ײ<EFBFBD><D7B2><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ʹ<EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>
//<2F>˺<EFBFBD><CBBA><EFBFBD><EFBFBD>ᱻHAL_UART_Init()<29><><EFBFBD><EFBFBD>
//huart:<3A><><EFBFBD>ھ<EFBFBD><DABE><EFBFBD>

void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
    //GPIO<49>˿<EFBFBD><CBBF><EFBFBD><EFBFBD><EFBFBD>
	GPIO_InitTypeDef GPIO_Initure;
	
	if(huart->Instance==USART1)//<2F><><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>1 MSP<53><50>ʼ<EFBFBD><CABC>
	{
		__HAL_RCC_GPIOA_CLK_ENABLE();			//ʹ<><CAB9>GPIOAʱ<41><CAB1>
		__HAL_RCC_USART1_CLK_ENABLE();			//ʹ<><CAB9>USART1ʱ<31><CAB1>
		__HAL_RCC_AFIO_CLK_ENABLE();
	
		GPIO_Initure.Pin=GPIO_PIN_9;			//PA9
		GPIO_Initure.Mode=GPIO_MODE_AF_PP;		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		GPIO_Initure.Pull=GPIO_PULLUP;			//<2F><><EFBFBD><EFBFBD>
		GPIO_Initure.Speed=GPIO_SPEED_FREQ_HIGH;//<2F><><EFBFBD><EFBFBD>
		HAL_GPIO_Init(GPIOA,&GPIO_Initure);	   	//<2F><>ʼ<EFBFBD><CABC>PA9

		GPIO_Initure.Pin=GPIO_PIN_10;			//PA10
		GPIO_Initure.Mode=GPIO_MODE_AF_INPUT;	//ģʽҪ<CABD><D2AA><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<C4A3><CABD>	
		HAL_GPIO_Init(GPIOA,&GPIO_Initure);	   	//<2F><>ʼ<EFBFBD><CABC>PA10
		
#if EN_USART1_RX
		HAL_NVIC_EnableIRQ(USART1_IRQn);				//ʹ<><CAB9>USART1<54>ж<EFBFBD>ͨ<EFBFBD><CDA8>
		HAL_NVIC_SetPriority(USART1_IRQn,3,3);			//<2F><>ռ<EFBFBD><D5BC><EFBFBD>ȼ<EFBFBD>3<EFBFBD><33><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>3
#endif	
	}
}

void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
	if(huart->Instance==USART1)//<2F><><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD>1
	{
		if((USART_RX_STA&0x8000)==0)//<2F><><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
		{
			
			if(USART_RX_STA&0x4000)//<2F><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD>0x0d
			{
				if(aRxBuffer[0]!=0x0a)USART_RX_STA=0;//<2F><><EFBFBD>մ<EFBFBD><D5B4><EFBFBD>,<2C><><EFBFBD>¿<EFBFBD>ʼ
				else
				{
						USART_RX_STA|=0x8000;	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
				}					
				
			} else {//<2F><>û<EFBFBD>յ<EFBFBD>0X0D
				
				if(aRxBuffer[0]==0x0d)USART_RX_STA|=0x4000;
				else
				{
					USART_RX_BUF[USART_RX_STA&0X3FFF]=aRxBuffer[0] ;
					USART_RX_STA++;
					if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD>,<2C><><EFBFBD>¿<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>	  
				}		 
			}
		}

	}
}
 
//<2F><><EFBFBD><EFBFBD>1<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void USART1_IRQHandler(void)                	
{ 
	u32 timeout=0;
#if SYSTEM_SUPPORT_OS	 	//ʹ<><CAB9>OS
	OSIntEnter();    
#endif
	
	HAL_UART_IRQHandler(&UART1_Handler);	//<2F><><EFBFBD><EFBFBD>HAL<41><4C><EFBFBD>жϴ<D0B6><CFB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><C3BA><EFBFBD>
	
	timeout=0;
    while (HAL_UART_GetState(&UART1_Handler) != HAL_UART_STATE_READY)//<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD>
	{
	 timeout++;////<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
     if(timeout>HAL_MAX_DELAY) break;		
	
	}
     
	timeout=0;
	while(HAL_UART_Receive_IT(&UART1_Handler, (u8 *)aRxBuffer, RXBUFFERSIZE) != HAL_OK)//һ<>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><C2BF><EFBFBD><EFBFBD>жϲ<D0B6><CFB2><EFBFBD><EFBFBD><EFBFBD>RxXferCountΪ1
	{
	 timeout++; //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
	 if(timeout>HAL_MAX_DELAY) break;	
	}
#if SYSTEM_SUPPORT_OS	 	//ʹ<><CAB9>OS
	OSIntExit();  											 
#endif
} 
#endif	

/*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>Ӱ<EFBFBD><D3B0>жϿ<D0B6><CFBF><EFBFBD><EFBFBD>߼<EFBFBD>д<EFBFBD><D0B4><EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>*/

//<2F><><EFBFBD><EFBFBD>1<EFBFBD>жϷ<D0B6><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//void USART1_IRQHandler(void)                	
//{ 
//	u8 Res;
//	HAL_StatusTypeDef err;
//#if SYSTEM_SUPPORT_OS	 	//ʹ<><CAB9>OS
//	OSIntEnter();    
//#endif
//	if((__HAL_UART_GET_FLAG(&UART1_Handler,UART_FLAG_RXNE)!=RESET))  //<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>(<28><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD>0x0d 0x0a<30><61>β)
//	{
//		Res=USART1->DR; 
//		if((USART_RX_STA&0x8000)==0)//<2F><><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>
//		{
//			if(USART_RX_STA&0x4000)//<2F><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD>0x0d
//			{
//				if(Res!=0x0a)USART_RX_STA=0;//<2F><><EFBFBD>մ<EFBFBD><D5B4><EFBFBD>,<2C><><EFBFBD>¿<EFBFBD>ʼ
//				else USART_RX_STA|=0x8000;	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
//			}
//			else //<2F><>û<EFBFBD>յ<EFBFBD>0X0D
//			{	
//				if(Res==0x0d)USART_RX_STA|=0x4000;
//				else
//				{
//					USART_RX_BUF[USART_RX_STA&0X3FFF]=Res ;
//					USART_RX_STA++;
//					if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD>,<2C><><EFBFBD>¿<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>	  
//				}		 
//			}
//		}   		 
//	}
//	HAL_UART_IRQHandler(&UART1_Handler);	
//#if SYSTEM_SUPPORT_OS	 	//ʹ<><CAB9>OS
//	OSIntExit();  											 
//#endif
//} 
//#endif