28035的传感器采集并想上位机发送数据，我想求助大神看看成叙问题到底出在哪？
#include "DSP28x_Project.h" // Device Headerfile and Examples Include File
// Prototype statements for functions found within this file.
interrupt void adc_isr(void);
// Global variables used in this example:
Uint16 ConversionCount;
float TempSensorVoltage;
float adclo=0;
float Dec;
char rec_data[9];
int SampleCount; //采样次数
int SampleCountSCI;
static int AsciiBuff[9];
#define array_size 9
typedef struct array array;
struct array
{
int v[array_size];
};
array a;
void HexToASCII(float data);
array f();
void main()
{
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2803x_SysCtrl.c file.
InitSysCtrl();
// Step 2. Initialize GPIO:
// This example function is found in the DSP2803x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio(); // Skipped for this example
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts
DINT;
// Initialize the PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2803x_PieCtrl.c file.
InitPieCtrl();
// Disable CPU interrupts and clear all CPU interrupt flags:
IER = 0x0000;
IFR = 0x0000;
// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example. This is useful for debug purposes.
// The shell ISR routines are found in DSP2803x_DefaultIsr.c.
// This function is found in DSP2803x_PieVect.c.
InitPieVectTable();
// 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.ADCINT1 = &adc_isr;
EDIS; // This is needed to disable write to EALLOW protected registers
// Step 4. Initialize the ADC:
// This function is found in DSP2803x_Adc.c
InitAdc(); // For this example, init the ADC
// Step 5. Configure ADC to sample the temperature sensor on ADCIN5:
// The output of Piccolo temperature sensor can be internally connected to the ADC through ADCINA5
// via the TEMPCONV bit in the ADCCTL1 register. When this bit is set, any voltage applied to the external
// ADCIN5 pin is ignored.
EALLOW;
AdcRegs.ADCCTL1.bit.TEMPCONV = 1; //Connect internal temp sensor to channel ADCINA5.
EDIS;
// Step 6. Continue configuring ADC to sample the temperature sensor on ADCIN5:
// Since the temperature sensor is connected to ADCIN5, configure the ADC to sample channel ADCIN5
// as well as the ADC SOC trigger and ADCINTs preferred. This example uses EPWM1A to trigger the ADC
// to start a conversion and trips ADCINT1 at the end of the conversion.
EALLOW;
AdcRegs.ADCCTL1.bit.INTPULSEPOS = 1; //ADCINT1 trips after AdcResults latch
AdcRegs.INTSEL1N2.bit.INT1E = 1; //Enabled ADCINT1
AdcRegs.INTSEL1N2.bit.INT1CONT = 0; //Disable ADCINT1 Continuous mode
AdcRegs.INTSEL1N2.bit.INT1SEL = 0; //setup EOC0 to trigger ADCINT1 to fire
AdcRegs.ADCSOC0CTL.bit.CHSEL = 5; //set SOC0 channel select to ADCINA5 (which is internally connected to the temperature sensor)
AdcRegs.ADCSOC0CTL.bit.TRIGSEL = 5; //set SOC0 start trigger on EPWM1A
AdcRegs.ADCSOC0CTL.bit.ACQPS = 6; //set SOC0 S/H Window to 7 ADC Clock Cycles, (6 ACQPS plus 1)
EDIS;
// Step 7. User specific code, enable interrupts:
// Enable ADCINT1 in PIE
PieCtrlRegs.PIECTRL.bit.ENPIE = 1;
PieCtrlRegs.PIEIER1.bit.INTx1 = 1; // Enable INT 1.1 in the PIE
PieCtrlRegs.PIEIER9.bit.INTx1 = 1;
PieCtrlRegs.PIEIER9.bit.INTx2 = 1;
IER |= M_INT1;
IER |= M_INT9; // Enable CPU Interrupt 1
EINT; // Enable Global interrupt INTM
ERTM; // Enable Global realtime interrupt DBGM
ConversionCount = 0;
// Assumes ePWM1 clock is already enabled in InitSysCtrl();
EPwm1Regs.ETSEL.bit.SOCAEN = 1; // Enable SOC on A group
EPwm1Regs.ETSEL.bit.SOCASEL = 4; // Select SOC from from CPMA on upcount
EPwm1Regs.ETPS.bit.SOCAPRD = 1; // Generate pulse on 1st event
EPwm1Regs.CMPA.half.CMPA = 0x0080; // Set compare A value
EPwm1Regs.TBPRD = 0xFFFF; // Set period for ePWM1
EPwm1Regs.TBCTL.bit.CTRMODE = 0; // count up and start
// Wait for ADC interrupt
for(;;)
{
}
}
interrupt void adc_isr(void)
{
IER = 0x0000;
IFR = 0x0000;
ConversionCount++;
TempSensorVoltage = ((float)AdcResult.ADCRESULT0)*3.0/65520.0+adclo;;
// If 20 conversions have been logged, start over
/*if(ConversionCount == 9)
{
ConversionCount = 0;
}
else ConversionCount++;*/
HexToASCII(TempSensorVoltage);
a=f();
SciaRegs.SCIFFTX.bit.TXFFINTCLR=1; //清除TXFFINT标志位
AdcRegs.ADCINT**CLR.bit.ADCINT1 = 1; //Clear ADCINT1 flag reinitialize for next SOC
PieCtrlRegs.PIEACK.all = PIEACK_GROUP1; // Acknowledge interrupt to PIE
return;
}
interrupt void SCITXINTA_ISR(void) //SCIA发送中断函数
{
int i;
for(i=0;i<9;i++)
{
SciaRegs.SCITXBUF=a.v[i]; //发送数据
}
PieCtrlRegs.PIEACK.all=0x0100; //使同组其他中断能够得到响应
EINT; // 开全局中断
}
interrupt void SCIRXINTA_ISR(void) //SCIA接收中断函数
{
int i;
SampleCountSCI++;
for(i=0;i<9;i++)
{
rec_data[i]=SciaRegs.SCIRXBUF.all; //接收数据
}
Dec=(int)(rec_data[0]-0x30)*100.0+(int)(rec_data[1]-0x30)*10.0+(int)(rec_data[2]-0x30)*1.0
+(int)(rec_data[4]-0x30)/10.0+(int)(rec_data[5]-0x30)/100.0+(int)(rec_data[6]-0x30)/1000.0;
SciaRegs.SCIFFRX.bit.RXFIFORESET=0; //复位FIFO指针
SciaRegs.SCIFFRX.bit.RXFIFORESET=1; //重新使能接收FIFO
SciaRegs.SCIFFRX.bit.RXFFINTCLR=1; //清除RXFFINT标志位
PieCtrlRegs.PIEACK.all=0x0100; //使同组其他中断能够得到响应
EINT; // 开全局中断
}
void HexToASCII(float data)
{
AsciiBuff[0]=(Uint16)(data/100)%10+0x30; //Chr(48) 0
AsciiBuff[1]=(Uint16)(data/10)%10+0x30;
AsciiBuff[2]=(Uint16)((int)(data)%10)+0x30;
AsciiBuff[3]=46; //chr(46) .小数点
AsciiBuff[4]=((int)(data*10))%10+0x30;
AsciiBuff[5]=((int)(data*100))%10+0x30;
AsciiBuff[6]=((int)(data*1000))%10+0x30;
AsciiBuff[7]=9; //chr(9) 空格
AsciiBuff[8]=(Uint16)'\0'; //字符串的结尾有一个空符作为结束,不显示
if(AsciiBuff[0]==48&&AsciiBuff[1]==48)
{
AsciiBuff[0]=32;
AsciiBuff[1]=32;
}
if(AsciiBuff[0]==48)
{
AsciiBuff[0]=32;
}
}
array f()
{
array z;
int i;
for(i=0;i<9;i++)
z.v[i] = AsciiBuff[i];
return z;
}
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