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2019-07-17 18:15发布

//------------------------------------------------------------------------------------
// F02x_Blinky.c
//------------------------------------------------------------------------------------
// Copyright (C) 2007 Silicon Laboratories, Inc.
//
// AUTH: BW
// DATE: 4 SEP 01
//
// This program flashes the green LED on the C8051F020 target board about five times
// a second using the interrupt handler for Timer3.
// Target: C8051F02x
//
// Tool chain: KEIL Eval 'c'
//

//------------------------------------------------------------------------------------
// Includes
//------------------------------------------------------------------------------------
#include <c8051f020.h>                   // SFR declarations
#include <math.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <intrins.h>

//------------------------------------------------------------------------------------
// 16-bit SFR Definitions for 'F02x
//------------------------------------------------------------------------------------

sfr16 DP    = 0x82;                   // data pointer
sfr16 TMR3RL = 0x92;                   // Timer3 reload value
sfr16 TMR3    = 0x94;                   // Timer3 counter
sfr16 ADC0    = 0xbe;                   // ADC0 data
sfr16 ADC0GT = 0xc4;                   // ADC0 greater than window
sfr16 ADC0LT = 0xc6;                   // ADC0 less than window
sfr16 RCAP2 = 0xca;                   // Timer2 capture/reload
sfr16 T2    = 0xcc;                   // Timer2
sfr16 RCAP4 = 0xe4;                   // Timer4 capture/reload
sfr16 T4    = 0xf4;                   // Timer4
sfr16 DAC0    = 0xd2;                   // DAC0 data
sfr16 DAC1    = 0xd5;                   // DAC1 data

//------------------------------------------------------------------------------------
// Global CONSTANTS
//------------------------------------------------------------------------------------
#define BAUDRATE    9600          // Baud rate of UART in bps
                  // 波特率必须是：9600 19200 38400 57600 115200
   // 22118400频率太高，无法设置4800以下的波特率
// SYSTEMCLOCK = System clock frequency in Hz

#define SYSTEMCLOCK    22118400

#define SYSCLK 2000000                   // approximate SYSCLK frequency in Hz
unsigned char xdata h[4096];
unsigned char a,b,a1,b1,d2;
float c,d,d1,f,f1,g[10];
                     // green LED: '1' = ON; '0' = OFF
sbit  RS = P1^0;
sbit  Q2 = P1^1;
sbit  Q1 = P1^2;
sbit  SH = P1^3;

unsigned long int i,j,k,m;
unsigned char xdata high[2048];
unsigned char xdata low[2048];

//------------------------------------------------------------------------------------
// Function PROTOTYPES
//------------------------------------------------------------------------------------
void CCD_PORT_Init (void);
void OSCILLATOR_Init (void);
void ADC0_Init (void);
void delay (unsigned long int time);
void UART0_Init (void);
void PORT1_Init (void);

//------------------------------------------------------------------------------------
// MAIN Routine
//------------------------------------------------------------------------------------
void main (void)
{

// disable watchdog timer
WDTCN = 0xde;
WDTCN = 0xad;

OSCILLATOR_Init ();                // Initialize oscillator
CCD_PORT_Init ();
PORT1_Init ();
ADC0_Init ();
UART0_Init ();

P1 = 0x0d;
delay (15);
RS=0;
delay (15);
RS=1;
delay (15);
P1=0x0b;
//Q1=0;
// Q2=1;
delay (15);
RS=0;
delay (15);
RS=1;
delay (15);
m = 0;

while(1)
{

   // for(m = 0; m < 10; m++)
   // {
   for(k = 0;k < 10; k++)
   {

         SH=0;
   delay (1);
   RS=0;
         delay (1);
   RS=1;
   delay (1);
   RS=0;
         delay (1);
   RS=1;
         delay (1);
   SH=1;

   delay (1);
   RS=0;
         delay (1);
   RS=1;
   delay (1);

      // Q1=1;
   //Q2=0;

            for(j = 0;j<20;j++)
         {
   P1=0x0d;
   delay (1);
   AD0BUSY = 1;
            while(AD0INT == 0);
      AD0BUSY = 0;
      AD0INT  = 0;
//    high[m] = ADC0>>8;
//    low[m] = ADC0&0xff;
            RS=0;
   delay (1);
      RS=1;
   delay (1);
//    m++;
   P1=0x0b;
   delay (1);
   AD0BUSY = 1;
            while(AD0INT == 0);
      AD0BUSY = 0;
      AD0INT  = 0;
//    high[m] = ADC0>>8;
//    low[m] = ADC0&0xff;
   RS=0;
   delay (1);
      RS=1;
   delay (1);
//    m++;
         }

   for(j = 0;j<1024;j++)
         {
   P1=0x0d;
   delay (1);
   AD0BUSY = 1;
            while(AD0INT == 0);
      AD0BUSY = 0;
      AD0INT  = 0;
   high[m] = ADC0>>8;
   low[m] = ADC0&0x00ff;
            RS=0;
   delay (1);
      RS=1;
   delay (1);
   m++;
   P1=0x0b;
   delay (1);
   AD0BUSY = 1;
            while(AD0INT == 0);
      AD0BUSY = 0;
      AD0INT  = 0;
   high[m] = ADC0>>8;
   low[m] = ADC0&0x00ff;
   RS=0;
   delay (1);
      RS=1;
   delay (1);
   m++;
         }

            for(j = 0;j<266;j++)
         {
   P1=0x0d;
   delay (1);
   AD0BUSY = 1;
            while(AD0INT == 0);
      AD0BUSY = 0;
      AD0INT  = 0;
//    high[m] = ADC0>>8;
//    low[m] = ADC0&0xff;
            RS=0;
   delay (1);
      RS=1;
   delay (1);
//    m++;
   P1=0x0b;
   delay (1);
   AD0BUSY = 1;
            while(AD0INT == 0);
      AD0BUSY = 0;
      AD0INT  = 0;
//    high[m] = ADC0>>8;
//    low[m] = ADC0&0xff;
   RS=0;
   delay (1);
      RS=1;
   delay (1);
//    m++;
         }

      SH = 0;
   m = 0;

}


   for (i = 0; i<2048; i++)
   {
   SBUF0 = high[i];
   while(TI0 == 0);
   TI0 = 0;
   SBUF0 = low[i];
   while(TI0 == 0);
   TI0 = 0;
   }
   TI0 = 0;

}

}

//------------------------------------------------------------------------------------
// PORT_Init
//------------------------------------------------------------------------------------
//
// Configure the Crossbar and GPIO ports
//
void CCD_PORT_Init (void)
{
XBR2 = 0x40;                   // Enable crossbar and weak pull-ups
P1MDOUT = 0x0f;                   // enable P1.6 (LED) as push-pull output

}

//------------------------------------------------------------------------------------
// Timer3_Init
//------------------------------------------------------------------------------------
//
// Configure Timer3 to auto-reload and generate an interrupt at interval
// specified by <counts> using SYSCLK/12 as its time base.
//
void delay(unsigned long int time)
{
      unsigned long int i;

for(i = 0;i < time;i++)
{

   _nop_();

      }
}

void OSCILLATOR_Init (void)
{
int i;                            // delay counter

OSCXCN = 0x67;                   // start external oscillator with
                                    // 22.1184MHz crystal

for (i=0; i < 256; i++) ;          // wait for oscillator to start

while (!(OSCXCN & 0x80)) ;       // Wait for crystal osc. to settle

OSCICN = 0x88;                   // select external oscillator as SYSCLK
                                    // source and enable missing clock
                                    // detector

}

//-----------------------------------------------------------------------------
void ADC0_Init (void)
{

REF0CN = 0x03;                   // Enable temp sensor, on-chip VREF,
ADC0CF = 0xF8;                   // PGA gain = 1 (default) // and VREF output buffer
AMX0CF = 0x00;                   // AIN inputs are single-ended (default)
AMX0SL = 0x00;                   // Select AIN0.1 pin as ADC mux input

  // ADC0CF = 0x00;    // ADC conversion clock = 2.5MHz

ADC0CN = 0x80;                   // ADC0 disabled; normal tracking
                                    // mode; ADC0 conversions are initiated
                  // right-justified// on overflow of Timer3; ADC0 data is
}

void UART0_Init (void)
{

long int value;
value = 256 - (SYSTEMCLOCK/BAUDRATE)/16;
SCON0 = 0x50;
TMOD  = 0x20;
TH1 = value;
//  TH1 = 0x70;
TR1 = 1;
CKCON  |= 0x10;

PCON |= 0x80;

}

void PORT1_Init (void)
{
XBR0    = 0x04;
XBR1    = 0x00;
XBR2    = 0x40;                   // Enable crossbar and weak pull-up
                                    // Enable UART1

P0MDOUT |= 0x01;                   // Set TX pin to push-pull
}

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