CuriousMind
- Feb 8, 2017
- 2
- Joined
- Feb 8, 2017
- Messages
- 2
Hello All!
I am trying to read ADCValue in my motorized slide pot.So,I have used a break point before the variable which I want to read the ADCValue.But,unfortunately no ADC value is showing in the variables window(not even the type of the variable).
Can someone tell me what is wrong here?Thanks
PS:using dsPIC33EP512MU810
Below is my code:
BModerators note : used code tags for pieces of code
I am trying to read ADCValue in my motorized slide pot.So,I have used a break point before the variable which I want to read the ADCValue.But,unfortunately no ADC value is showing in the variables window(not even the type of the variable).
Can someone tell me what is wrong here?Thanks
PS:using dsPIC33EP512MU810
Below is my code:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <p33EP512MU810.h>
#include <xc.h>
#include <libpic30.h>
/****************************CONFIGURATION****************************/
_FOSCSEL(FNOSC_FRC);
_FOSC(FCKSM_CSECMD & POSCMD_XT & OSCIOFNC_OFF & IOL1WAY_OFF);
_FWDT(FWDTEN_OFF);_FPOR(FPWRT_PWR128 & BOREN_ON & ALTI2C1_ON & ALTI2C2_ON);
_FICD(ICS_PGD1 & RSTPRI_PF & JTAGEN_OFF);
void initAdc1(void);
void Delay_us(unsigned int);
int ADCValue, i, j;
int main(void)
{
// Configure the device PLL to obtain 60 MIPS operation. The crystal frequency is 8 MHz.// Divide 8 MHz by 2, multiply by 60 and divide by 2. This results in Fosc of 120 MHz.// The CPU clock frequency is Fcy = Fosc/2 = 60 MHz.
PLLFBD = 58;/* M = 60*/
CLKDIVbits.PLLPOST = 0;/* N1 = 2*/
CLKDIVbits.PLLPRE = 0;/* N2 = 2*/
OSCTUN = 0;
/* Initiate Clock Switch to Primary Oscillator with PLL (NOSC = 0x3) */
__builtin_write_OSCCONH(0x03);
__builtin_write_OSCCONL(0x01);
while (OSCCONbits.COSC != 0x3);// Wait for Clock switch to occur
while (_LOCK == 0);/* Wait for PLL lock at 40 MIPS */
initAdc1();
while(1)
{
Delay_us(100);// Sample for 100 us
AD1CON1bits.SAMP = 0;// Start the conversion
while (!AD1CON1bits.DONE);// Wait for the conversion to complete
AD1CON1bits.DONE = 0;// Clear conversion done status bit
ADCValue = ADC1BUF0;// Read the ADC conversion result
}
}
void initAdc1(void)
{
/* Set port configuration */
ANSELA = ANSELB = ANSELC = ANSELD = ANSELE = ANSELG = 0x0000;
ANSELBbits.ANSB5 = 1;// Ensure AN5/RB5 is analog/* Initialize and enable ADC module */
AD1CON1 = 0x0004;
AD1CON2 = 0x0000;
AD1CON3 = 0x000F;
AD1CON4 = 0x0000;
AD1CHS0 = 0x0005;
AD1CHS123 = 0x0000;
AD1CSSH = 0x0000;
AD1CSSL = 0x0000;
AD1CON1bits.ADON = 1;
Delay_us(20);
}
void Delay_us(unsigned int delay)
{
for (i = 0; i < delay; i++)
{__asm__ volatile ("repeat #39");
__asm__ volatile ("nop");
}
}BModerators note : used code tags for pieces of code
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