1.Fixed communication failure between MCU and wireless module 2.Fix the wro...

wujiazhi

2024-06-11 65062d0d5b21f838aa0043a15ce54cfab8d72c43

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#include "rs485.h"     
#include "delay.h"
 
#include "readdevicedata.h"
#include "devicegpioinit.h"
#include "gpio.h"
 
 
#define        SEND_MAX_NUM     200
u8    share_sendbuf[SEND_MAX_NUM]={0};
/******************************************
 * func:    RS485_Usart_Init
 * desc:    RS485_Usart_Init
 * input:   system_BaudRate
 * output:  none
 * return:  none
 *****************************************/
void RS485_Usart_Init(uint8  BaudRateCode,uint8 Parity)
{ 
    uint32  system_BaudRate;
    
    UART_SInitTypeDef UART_para;
  CMU_ClocksType CMU_Clocks;
    
    
    CMU_PERCLK_SetableEx(PADCLK, ENABLE);
    AltFunIO(RS485_TXD_EN_PIN_GROUP, RS485_TXD_EN_PIN_NUM, ALTFUN_NORMAL);    
  AltFunIO(RS485_RXD_EN_PIN_GROUP, RS485_RXD_EN_PIN_NUM , ALTFUN_NORMAL); 
//--------------------------------------------------------------------------------
    
    UART_para.BaudRate = BaudRateCode;//²¨ÌØÂÊ
    UART_para.StopBit = OneBit;            //ֹͣλ
    UART_para.DataBit = Eight8Bit;    //Êý¾ÝλÊý
    UART_para.ParityBit = Parity;            //ÆæżУÑé
 
    CMU_GetClocksFreq(&CMU_Clocks);    
    UART_SInit(UART1, &UART_para,&CMU_Clocks);    //³õʼ»¯uart    
 
//    UARTx_IER_RXBF_IE_Setable(UART1, ENABLE);//½ÓÊÕ»º´æÂúÖжÏʹÄÜ ÐèҪʹÓýÓÊÕÖжϴò¿ª´Ë´¦ÉèÖÃ
//    UARTx_IER_TXSE_IE_Setable(UART1, ENABLE)£»//·¢ËÍ»º´æ¿ÕÇÒ·¢ËÍÒÆλ¼Ä´æÆ÷¿ÕÖжÏʹÄÜ ÐèҪʹÓ÷¢ËÍÖжϴò¿ª´Ë´¦ÉèÖÃ
    
    NVIC_DisableIRQ(UART1_IRQn);
//        NVIC_SetPriority(UART1_IRQn,2);//ÖжÏÓÅÏȼ¶ÅäÖÃ
//        NVIC_EnableIRQ(UART1_IRQn);    
    
    UARTx_CSR_RXEN_Setable(UART1, ENABLE);  //´ò¿ª½ÓÊÕʹÄÜ
    UARTx_CSR_TXEN_Setable(UART1, ENABLE);  //´ò¿ª·¢ËÍʹÄÜ
    
    UARTx_ISR_RXBF_Clr(UART1);
 
}
 
 
/******************************************
 * func:    RS485_Send_Data
 * desc:    send data by RS485
 * input:   USARTx - select USART port , buf - send buffer , len - data length
 * output:  none
 * return:  none
 *****************************************/
void RS485_Send_Data(uint8 *buf,uint16 len)
{
    uint16 t;
    RS485_RE_H;
            
    for(t=0;t<len;t++)          //send data
    {    
        UARTx_TXBUF_Write(UART4, buf[t]);        //½«·¢ËÍÊý¾ÝдÈë·¢ËͼĴæÆ÷
        while(RESET == UARTx_ISR_TXSE_Chk(UART4));    //µÈ´ý·¢ËÍÍê³É
    }     
 
    while(RESET == UARTx_ISR_TXSE_Chk(UART4));    //µÈ´ý·¢ËÍÍê³É
    
    RS485_RE_L;
}
 
/******************************************
 * func:    RS485_Receive_Data
 * desc:    get received data from RS485
 * input:   buf - receive buffer,len - data length
 * output:  none
 * return:  none
 *****************************************/
void RS485_Receive_Data(uint8 * recbuf, uint8 *rec485buffer, uint8 len)
{
    uint8 i=0;
                              
    for(i = 0;i < len;i ++)
    {
        recbuf[i] = rec485buffer[i];    
    }        
}
 
 
/******************************************
 * func:    UART1_IRQHandler
 * desc:    UART1_IRQHandler
 * input:   
 * output:  none
 * return:  none
 *****************************************/
//void UART1_IRQHandler(void)
//{
//  u8 RX_dat;  
 
// if((ENABLE == UARTx_IER_RXBF_IE_Getable(UART1)) &&(SET ==UARTx_ISR_RXBF_Chk(UART1)))
//  { 
//        UARTx_ISR_RXBF_Clr(UART1);
//    RX_dat=UARTx_RXBUF_Read(UART1);//½ÓÊÕÖжϱêÖ¾½ö¿Éͨ¹ý¶ÁÈ¡RXBUF¼Ä´æÆ÷Çå³ý
 
//        LLJ_Msg.UartBuff[LLJ_Msg.WritePtr] = RX_dat;
//        LLJ_Msg.WritePtr = (LLJ_Msg.WritePtr + 1) & 0xffff;        
//  } 
//    
 
//}