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MCP3201 12-bit SPI ADC Driver

 
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sshahryiar



Joined: 05 May 2010
Posts: 92
Location: Dhaka, Bangladesh

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MCP3201 12-bit SPI ADC Driver
PostPosted: Mon Apr 08, 2013 11:15 pm     Reply with quote

Code:

#include <16F87.h>

#device *= 16
                 
#fuses NOWDT, INTRC, PROTECT, CPD, PUT, NOWRT
#fuses NOMCLR, BROWNOUT,  FCMEN, NOIESO, NOLVP
             
#use delay (clock = 4MHz)                             
#use SPI(MASTER, DI = PIN_A1, CLK = PIN_A2, BITS = 16, MODE = 0)
                           
#define CS        pin_A0                           
                                       
#include <lcd420.c>             
           
void setup();         
                                                                                   
                                     
void main()             
{                                   
    register float v = 0.0; 
    register unsigned long adc_value = 0;
    setup();           
    while(TRUE)         
    {                                                       
        output_low(CS);               
        adc_value = spi_xfer(0);
        output_high(CS);           
        adc_value &= 0x1FFE;
        adc_value >>= 1;
        v = (adc_value * 5.0);       
        v /= 4095.0;                                                       
        lcd_gotoxy(1,1);
        printf(lcd_putc, "V: %1.3f Volt ", v);       
        lcd_gotoxy(1,2);           
        printf(lcd_putc, "ADC: %4lu ", adc_value); 
        delay_ms(100);                       
    };
}                                       

                                                 
void setup()                           
{
    setup_oscillator(OSC_4MHZ);
    disable_interrupts(global);
    setup_WDT(WDT_off);
    setup_comparator(NC_NC_NC_NC);
    setup_CCP1(CCP_off);
    setup_SPI(SPI_disabled);           
    setup_timer_0(0 | 0 | 0);
    setup_timer_1(T1_disabled);
    setup_timer_2(T2_disabled, 255, 1);
    set_timer0(0);           
    set_timer1(0);                   
    set_timer2(0);
    output_high(CS);
    lcd_init();   
    lcd_putc("\f");
    delay_ms(100);   
}       

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SShahryiar
ihsanbu



Joined: 14 Oct 2006
Posts: 27
Location: islamabad,pakistan

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Can we use this driver for MCP3909
PostPosted: Fri Nov 08, 2013 5:03 am     Reply with quote

Can we use this driver for MCP3909
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ihsan ullah khan
Embedded Designer Since 2003
sshahryiar



Joined: 05 May 2010
Posts: 92
Location: Dhaka, Bangladesh

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PostPosted: Fri Nov 08, 2013 9:07 am     Reply with quote

May be not because both chips are not same....
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