Cần giúp đỡ về dspic!!!!!!

[phongvan]

em viết chương trình đọc ADC của dspic 4011.debug ầm ầm.nhưng cho chạy thử trên mạch thì ko nhận được gì hết.mình đã sửa chỉ gởi lên "&" mà cũng nhận được gì.mọi người giúp em với.thức máy đêm rồi vẫn ko ra.em cam ơn nhiều ạ.
[code]
#include "p30f4011.h"
#include "dsp.h"
//..........................................
_FOSC(CSW_FSCM_OFF & FRC_PLL16);
_FWDT(WDT_OFF);
_FBORPOR(PBOR_OFF & MCLR_EN);
_FGS(CODE_PROT_OFF);
//..........................................
#define FOSC 7372800
#define PLL 16
#define FCY FOSC*PLL/4 //Tan so thuc thi lenh
#define NUMSAMP 64
#define UART2_BAUD 38400
//..........................................
fractional inputSignal[NUMSAMP];
fractional *iPtr;
unsigned int doFilterFlag;
volatile unsigned int *adcPtr;
unsigned char HexTable[] = "& ";
//..........................................
void InitUART2(void);
void WriteUART2 (unsigned char data);
void Init_ADC(void);
void __attribute__((__interrupt__)) _ADCInterrupt(void);
int main(void);
//.........................................
int main(void)
{
iPtr = &inputSignal[0];
doFilterFlag = 0;
InitUART2(); //Khoi tao module UART2
Init_ADC(); //Khoi tao module ADC
while (1)
{
if (doFilterFlag)
{
int j;
for(j=0;j<NUMSAMP;j++)
{
U2TXREG = HexTable[0];
while(!U2STAbits.TRMT);
}
doFilterFlag = 0;
iPtr = &inputSignal[0];
IEC0bits.ADIE = 1;
}
}
return 0;
}
//.................................................. ..
void InitUART2(void)
{
U2BRG = (FCY/UART2_BAUD)/16 - 1; // baud rate 38400
U2STA&= 0xfffc;
IEC1bits.U2RXIE = 1; // enable RX2 interrupt
U2MODEbits.UARTEN = 1; // UARTEN: UART Enable bit
U2STAbits.UTXEN = 1; // transmition ON
}
//................................................
void WriteUART2 (unsigned char data)
{
U2TXREG = HexTable[0];
while(!U2STAbits.TRMT);
unsigned char *idx =&data;
U2TXREG = idx[0];
while(!U2STAbits.TRMT);
U2TXREG = idx[1];
while(!U2STAbits.TRMT);
U2TXREG = HexTable[1];
while(!U2STAbits.TRMT);
}
//................................................
void Init_ADC(void)
{
//ADCON1 Register
//Set up A/D for Automatic Sampling
//Use Timer3 to provide sampling time
//Set up A/D conversrion results to be read in 1.15 fractional
//number format.
//All other bits to their default state
ADCON1bits.FORM = 3;
ADCON1bits.SSRC = 2;
ADCON1bits.ASAM = 1;

//ADCON2 Register
ADCON2bits.VCFG = 7; //Internal V+ / V-
ADCON2bits.SMPI = 15; //Set up A/D for interrupting after 16 samples get filled in the buffer
ADCON2bits.BUFM=0;
ADCON2bits.ALTS=0;
//ADCON3 Register
//We would like to set up a sampling rate of 7998.6981Hz or 87252.071 Hz
//Total Conversion Time= 1/Sampling Rate = 100 microseconds
//For fosc=117.968MHz, Tcy = 33.91 ns = Instruction Cycle Time
//We will set up Sampling Time using Timer3 & Tad using ADCS<5:0> bits
//All other bits to their default state
//Let's set up ADCS arbitrarily to 38
//So Tad = Tcy*(ADCS+1)/2 = 661.2 nanoseconds
//So, the A/D converter will take 14*Tad periods to convert each sample
ADCON3bits.SAMC=1;
ADCON3bits.ADRC=1;
ADCON3bits.ADCS =11 ;

//Next, we will to set up Timer 3 to time-out every X=125.02 microseconds (for mode 1) or X=11.461 microseconds (for mode 2)
//As a result, the module will stop sampling and trigger a conversion
//on every Timer3 time-out, i.e., 125.02 microseconds or 11.461 microseconds. At that time,
//the conversion process starts and completes 14*Tad periods later.
TMR3 = 0x0000;
PR3 = 0xA17;
IFS0bits.T3IF = 0;
IEC0bits.T3IE = 0;
T3CONbits.TCS = 0;
T3CONbits.TCKPS=0;

//ADCHS Register
//Set up A/D Channel Select Register to convert AN5 on Mux A input
ADCHS = 0x0000;


//ADCSSL Register
//Channel Scanning is disabled. All bits left to their default state
ADCSSL = 0x0000;

//ADPCFG Register
//Set up channels AN9 as analog inputs and configure rest as digital
//Recall that we configured all A/D pins as digital when code execution
//entered main() out of reset
ADPCFG = 0xFFFF;
ADPCFGbits.PCFG0 = 0;

//Clear the A/D interrupt flag bit
IFS0bits.ADIF = 0;

//Set the A/D interrupt enable bit
IEC0bits.ADIE = 1;

//Turn on the A/D converter
//This is typically done after configuring other registers
ADCON1bits.ADON = 1;

//Start Timer 3
T3CONbits.TON = 1;
}

void __attribute__((__interrupt__)) _ADCInterrupt(void)
{
//Clear the Timer3 Interrupt Flag
IFS0bits.T3IF = 0;

int i = 0;

//Clear the A/D Interrupt flag bit or else the CPU will
//keep vectoring back to the ISR
IFS0bits.ADIF = 0;

//Put the A/D conversion results to sigCmpx.real
adcPtr = &ADCBUF0 ;

for (i=0;i<16;i++)
{
*iPtr++ = *adcPtr++;
}

if (iPtr > &inputSignal[NUMSAMP-1])
{
doFilterFlag=1; // Sampling completed
IEC0bits.ADIE = 0; // Disable ADC interrupt
}

}

[/code]