基于430f5529的無線按鍵傳輸

ID:214217 · 發(fā)表于 2017-7-22 09:32

前幾天做了一用433M的無線傳輸，用430單片機發(fā)送和就收數(shù)據(jù)。但是很有很多的不足之處�，F(xiàn)在想繼續(xù)用兩對這樣的模塊來實現(xiàn)雙工通信。
發(fā)送程序

#include "msp430.h"
#include "HAL_UCS.h"
#include "system.h"

#define uchar unsigned char
#define uint unsigned int

#define SET_DATA_PORT P6OUT |= BIT5;
#define CLR_DATA_PORT P6OUT &= ~BIT5;

uchar table[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
uchar i=0,j=0,count=0;
void Port2_Init()
{
  P2DIR &= ~BIT1;
  P2OUT |= BIT1;
  P2REN |= BIT1;//設(shè)置上拉
  P2IES |= BIT1;//P2.1設(shè)置為下降沿觸發(fā)中斷方式
  P2IE |= BIT1;//使能P2.1中斷
  __enable_interrupt();
}

void Send_Start_Code()//引導(dǎo)碼
{
  SET_DATA_PORT;
  __delay_cycles(24000);//delay 5ms
  CLR_DATA_PORT;
  __delay_cycles(16000);
}

void Send_Data_Code(uchar bit)//數(shù)據(jù)碼
{
  if(bit)
  {
SET_DATA_PORT;
__delay_cycles(12000);//3000us high  2000us low 1
CLR_DATA_PORT;
__delay_cycles(8000);
  }
  else
  {
SET_DATA_PORT;
__delay_cycles(8000);
CLR_DATA_PORT;
__delay_cycles(12000);//2000us high 3000us low 0
  }
}

void Send_One_Byte(uchar data)//發(fā)送一個字節(jié)的數(shù)據(jù)
{
  uchar bi;
  for(i=0;i<8;i++)
  {
bi=data&0x80;
data=data<<1;
if(bi)
{
   Send_Data_Code(1);
}
else
{
   Send_Data_Code(0);
}
  }
}

int main( void )
{
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  System_Clock_Init();
  //Port2_Init();

  P4DIR |= BIT7;
  P4OUT |= BIT7;

  P6DIR |= BIT5;
  CLR_DATA_PORT;
  while(1)
  {
Send_Start_Code();
Send_One_Byte(0x3f);
Send_One_Byte(0x06);
Send_One_Byte(0x5b);
Send_One_Byte(0x4f);
Send_One_Byte(0x66);
Send_One_Byte(0x6d);
Send_One_Byte(0x7d);
Send_One_Byte(0x07);
Send_One_Byte(0x7f);
Send_One_Byte(0x67);
__delay_cycles(200000);
  }
}

接收程序

#include "msp430.h"
#include "HAL_UCS.h"
#include "system.h"

#define uchar unsigned char
#define uint unsigned int

#define DATA_INPUT P2IN&BIT0

uchar table[10];
uchar th,tl,i,j;

uchar Get_Start_Line()
{
  uchar i=0;
  while(DATA_INPUT&&i<50)//為1時循環(huán)，但不能超過8ms
  {
i++;
__delay_cycles(400);
  }
  return i;
}

uchar Get_High_Line()
{
  uchar i=0;
  while(DATA_INPUT&&i<80)//為1時循環(huán)，但不能超過8ms
  {
i++;
__delay_cycles(400);
  }
  return i;
}

uchar Get_Low_Line()
{
  uchar i=0;
  while(!DATA_INPUT&&i<60)
  {
i++;
__delay_cycles(400);
  }
  return i;
}

int main( void )
{
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  System_Clock_Init();
  P4DIR |= BIT7;
  P4OUT &= ~BIT7;
  P1DIR |= BIT0;
  P1OUT &= ~BIT0;
  P3DIR = 0xff;
  P3OUT = 0x3f;
  while(1)
  {
restart:while(!DATA_INPUT) P1OUT &= ~BIT0;

th=Get_High_Line();
if(th<55||th>65) goto restart;
tl=Get_Low_Line();
if(tl<35||tl>45) goto restart;//<3.5ms||>4.5ms

P1OUT |= BIT0;
for(j=0;j<10;j++)
{
   for(i=0;i<8;i++)
   {
      th=Get_High_Line();
      //if(th<15||th>35) goto restart;
      tl=Get_Low_Line();
      //if(tl<15||tl>35) goto restart;
      table[j]<<=1;
      if(th>22){table[j] |= 0x01;}
   }
}

P3OUT = table[0];
__delay_cycles(2000000);
P3OUT = table[1];
__delay_cycles(2000000);
P3OUT = table[2];
__delay_cycles(2000000);
P3OUT = table[3];
__delay_cycles(2000000);
P3OUT = table[4];
__delay_cycles(2000000);
P3OUT = table[5];
__delay_cycles(2000000);
P3OUT = table[6];
__delay_cycles(2000000);
P3OUT = table[7];
__delay_cycles(2000000);
P3OUT = table[8];
__delay_cycles(2000000);
P3OUT = table[9];
__delay_cycles(2000000);
  }
}

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基于430f5529的無線按鍵傳輸

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