接收TX资料进而转换成PWM

发表于 2019-11-9 12:01

TX部分传输没问题
但RX部分该怎么接收TX资料进而转换成PWM
并控制PWM的大小

发表于 2019-11-9 12:04

你用的是什么

发表于 2019-11-9 12:06

我是用29466这块IC

发表于 2019-11-10 16:28

你做的是什么啊

发表于 2019-11-10 16:32

我自己写的RS232+ G-传感器程式

发表于 2019-11-10 16:36

----TX部分----
//
// Custom.c
//
// Custom functions for insertion into PSoC Express projects, including fixed functions
//
#include <m8c.h>
#include "PSoCAPI.h"
#include "custom.h"

#define START       0xa5
#define X             0x41
#define Y             0x52
#define STOP       0x5a
const BYTE data[] ={ START, X, Y, STOP};
extern SYSTEM_VARS_STRUC SystemVars;
void delay(unsigned int x);
BOOL fWaitToTx(void);
BYTE A;
BYTE B;
//
//  CustomInit() is run after driver and channel instantiation functions, but before the main loop
//
void CustomInit( void )
{
}

//
// CustomPostInputUpdate() is run after input drivers have updated SystemVars, but before transfer
// functions are evaluated.
//
void CustomPostInputUpdate( void )
{
}

//
// CustomPreOutputUpdate() is run after transfer functions have been evaluated, but before the output
// driver are updated with values from SystemVars.
//
void CustomPreOutputUpdate( void )
{
      unsigned char i;
      Counter8_Start();
      TX8_Start(0);
      M8C_EnableGInt;
      A = PRT1DR;
      B = PRT1DR;
      //START
      TX8_SendData(START);
      if (fWaitToTx());
      //X
      if (SystemVars.ReadWriteVars.pse_XAxis < 0)
      A = (-SystemVars.ReadWriteVars.pse_XAxis >> 3) | 0x80;
else
      A = (SystemVars.ReadWriteVars.pse_XAxis >> 3) & 0x7f;
      TX8_SendData(A);
      if (fWaitToTx());
      delay(100);
      //Y
      if (SystemVars.ReadWriteVars.pse_YAxis < 0)
      B = (-SystemVars.ReadWriteVars.pse_YAxis >> 3) | 0x80;
else
      B = (SystemVars.ReadWriteVars.pse_YAxis >> 3) & 0x7f;
      TX8_SendData(B);
      if (fWaitToTx());
      //STOP
      TX8_SendData(STOP);
      if (fWaitToTx());

      delay(1000);

}
BOOL fWaitToTx(void)
{
BYTE bTxStatus;
      while ( !(bTxStatus = TX8_bReadTxStatus() & TX8_TX_COMPLETE));
      return (TRUE);
}

void delay(unsigned int x)
{
unsigned i;
      for(i = 0; i < x; i++);
}

发表于 2019-11-10 16:37

----RX部分----
//----------------------------------------------------------------------------
// C main line
//----------------------------------------------------------------------------

#include <m8c.h>       // part specific constants and macros
#include "PSoCAPI.h" // PSoC API definitions for all User Modules
#include "RX8.h"

#define       START       0xa5
#define       X       0x41
#define Y       0x52
#define       STOP       0x5a
#define RX_OK       0x01
const BYTE data[] ={ START, X, Y, STOP};
BOOL fWaitToRx(void);
BYTE bRxData;
void delay(unsigned int x);
int j=0;
void main(void)
{
unsigned char i;
      //--------RS232_RX---------
      Counter8_Start();
      RX8_DisableInt();
      RX8_Start(0);
      M8C_EnableGInt;
      //--------PWM---------
      DigBuf1_DisableInt();
      DigBuf2_DisableInt();
         PWM8_WritePeriod(120);
      PWM8_DisableInt();
      PWM8_Start();
      DigBuf3_DisableInt();
      DigBuf4_DisableInt();
         PWM81_WritePeriod(120);
      PWM81_DisableInt();
      PWM81_Start();

      while (1)
      {
      if (fWaitToRx())
      {
         if(bRxData)
         {
         if (j == 0)
            {
                  DigBuf1_Start();
                     DigBuf2_Stop();
                     DigBuf4_Start();
                     DigBuf3_Stop();

            for (i = 7; i <= 120; i++)
            {
                     PWM8_WritePulseWidth(i);
                              PWM81_WritePulseWidth(i);
                     delay(2500);
            }
                     for (i = 120; i >= 7; i--)
            {
                     PWM8_WritePulseWidth(i);
                              PWM81_WritePulseWidth(i);
                     delay(2500);
            }

            }
            else
            {
                  DigBuf1_Stop();
                     DigBuf2_Start();
                     DigBuf4_Stop();
                     DigBuf3_Start();
            for (i = 7; i <= 120; i++)
            {
                     PWM8_WritePulseWidth(i);
                              PWM81_WritePulseWidth(i);
                     delay(2500);
            }
                     for (i = 120; i >= 7; i--)
            {
                     PWM8_WritePulseWidth(i);
                              PWM81_WritePulseWidth(i);
                     delay(2500);
            }
            }
            j = 1 - j;
         }
      }

      }
}

BOOL fWaitToRx(void)
{
BYTE bRxStatus;
while ( !(bRxStatus = RX8_bReadRxStatus() & RX8_RX_COMPLETE));
      if ((bRxStatus & RX8_RX_NO_ERROR) == 0)
      {
         bRxData = RX8_bReadRxData();
            return (TRUE);
      }
      else
      {
         bRxData = bRxStatus;
            return (FALSE);
      }
}

void delay(unsigned int x)
{
unsigned i;
for(i = 0; i < x; i++);
}

发表于 2019-11-10 16:39

可以到官网建一个case

发表于 2019-11-10 16:43

楼主是根据接收的内容确定PWM的大小吧

发表于 2019-11-10 16:45

写程序吧，根据斜率进行控制，搞一个公式出来

发表于 2019-11-10 16:49

好的，我明天去单位试一下，多谢各位大侠了哈，结贴了先

接收TX资料进而转换成PWM

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