如何在AD程序中添加串口程序

只看该作者 · 2010-2-7 13:18

想利用利用串口把AD采集的数值发给上位机，但是自己添加了几次都不成功，希望高手指点一下该如何设置程序，不胜感激，AD主程序如下，除了在主程序中需要改动外，想问下还需要改动或者添加哪些文件？现在很是苦恼，希望高手给多多指点啊
#include "DSP281x_Device.h"    // DSP281x Headerfile Include File
#include "DSP281x_Examples.h" // DSP281x Examples Include File

// Prototype statements for functions found within this file.
interrupt void adc_isr(void);

// Global variables used in this example:
Uint16 LoopCount;
Uint16 ConversionCount;
Uint16 Voltage1[1024];
Uint16 Voltage2[1024];

main()
{
InitSysCtrl();//初始化cpu

DINT;//关中断

InitPieCtrl();//初始化pie寄存器

IER = 0x0000;//禁止所有的中断
IFR = 0x0000;

InitPieVectTable();//初始化pie中断向量表

// Interrupts that are used in this example are re-mapped to
// ISR functions found within this file.
EALLOW;  // This is needed to write to EALLOW protected register
PieVectTable.ADCINT = &adc_isr;
EDIS; // This is needed to disable write to EALLOW protected registers
AdcRegs.ADCTRL1.bit.RESET = 1;             // Reset the ADC module
      asm(" RPT #10 || NOP");                               // Must wait 12-cycles (worst-case) for ADC reset to take effect
AdcRegs.ADCTRL3.all = 0x00C8;             // first power-up ref and bandgap circuits

AdcRegs.ADCTRL3.bit.ADCBGRFDN = 0x3;       // Power up bandgap/reference circuitry

AdcRegs.ADCTRL3.bit.ADCPWDN = 1;             // Power up rest of ADC

// Enable ADCINT in PIE
PieCtrlRegs.PIEIER1.bit.INTx6 = 1;
IER |= M_INT1; // Enable CPU Interrupt 1
EINT;       // Enable Global interrupt INTM
ERTM;       // Enable Global realtime interrupt DBGM

LoopCount = 0;
ConversionCount = 0;

// Configure ADC
AdcRegs.ADCMAXCONV.all = 0x0001;    // Setup 2 conv's on SEQ1
AdcRegs.ADCCHSELSEQ1.bit.CONV00 = 0x0; // Setup ADCINA3 as 1st SEQ1 conv.
AdcRegs.ADCCHSELSEQ1.bit.CONV01 = 0x1; // Setup ADCINA2 as 2nd SEQ1 conv.
AdcRegs.ADCTRL2.bit.EVA_SOC_SEQ1 = 1;  // Enable EVASOC to start SEQ1
AdcRegs.ADCTRL2.bit.INT_ENA_SEQ1 = 1;  // Enable SEQ1 interrupt (every EOS)

// Configure EVA
// Assumes EVA Clock is already enabled in InitSysCtrl();
EvaRegs.T1CMPR = 0x0080;             // Setup T1 compare value
EvaRegs.T1PR = 0x10;                // Setup period register
EvaRegs.GPTCONA.bit.T1TOADC = 1;    // Enable EVASOC in EVA
EvaRegs.T1CON.all = 0x1042;          // Enable timer 1 compare (upcount mode)

// Wait for ADC interrupt
while(1)
{
   LoopCount++;
}

}

interrupt void  adc_isr(void)
{

  Voltage1[ConversionCount] = AdcRegs.ADCRESULT0 >>4;
  Voltage2[ConversionCount] = AdcRegs.ADCRESULT1 >>4;

  // If 40 conversions have been logged, start over
  if(ConversionCount == 1023)
  {
   ConversionCount = 0;//breakpoint
  }
  else ConversionCount++;

  // Reinitialize for next ADC sequence
  AdcRegs.ADCTRL2.bit.RST_SEQ1 = 1;       // Reset SEQ1
  AdcRegs.ADCST.bit.INT_SEQ1_CLR = 1;    // Clear INT SEQ1 bit
  PieCtrlRegs.PIEACK.all = PIEACK_GROUP1; // Acknowledge interrupt to PIE

  return;
}