ABS/abscontrol Files · trunk/absroot/source/absc/Control_Module/at91sysclock.c

First beam is loaded by default after sending the beam file to the control modules.

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             at91sysclock.c
        
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      /*

       *  This programmer uses AT91' System clock

       *

       *  2010 by Ricardo V. Rojas Quispe

       */

      #include <stdint.h>

      #include <stdlib.h>

      #include <stdio.h>

      #include <unistd.h>

      #include <sys/types.h>

      #include <sys/stat.h>

      #include <sys/mman.h>

      #include <fcntl.h>

      #include "./Librerias/at91sysclock.h"

      //Mapeando los registro en memoria:

      AT91S_PMC *clock_map(unsigned int clockbase){

          int fd;

          void *base;

          AT91S_PMC *clock;

          off_t addr = clockbase;

          if ((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1) {

              fprintf(stderr, "Cannot open /dev/mem.\n");

              exit(EXIT_FAILURE);

          }

          //fprintf(stderr, "/dev/mem opened.\n");

          base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, addr & ~MAP_MASK);

          if (base == (void *) -1) {

              fprintf(stderr, "Cannot open /dev/mem.\n");

              exit(EXIT_FAILURE);

          }

          //fprintf(stderr, "Memory mapped at address %p.\n", base);

          clock = base + (addr & MAP_MASK);

          return clock;

      }

      //Habilitamos el clock de ADC

      void enable_clock_adc(AT91S_PMC * clock){

          clock->PMC_PCER=0x20;

      }

      //Leemos el registro de estado de clock para perifericos

      unsigned int status_clock_adc(AT91S_PMC * clock){

          return (clock->PMC_PCSR);

      }

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				/*
				* This programmer uses AT91' System clock
				*
				* 2010 by Ricardo V. Rojas Quispe
				*/

				#include <stdint.h>
				#include <stdlib.h>
				#include <stdio.h>
				#include <unistd.h>

				#include <sys/types.h>
				#include <sys/stat.h>
				#include <sys/mman.h>
				#include <fcntl.h>

				#include "./Librerias/at91sysclock.h"

				//Mapeando los registro en memoria:
				AT91S_PMC *clock_map(unsigned int clockbase){
				int fd;
				void *base;

				AT91S_PMC *clock;

				off_t addr = clockbase;

				if ((fd = open("/dev/mem", O_RDWR \| O_SYNC)) == -1) {
				fprintf(stderr, "Cannot open /dev/mem.\n");
				exit(EXIT_FAILURE);
				}

				//fprintf(stderr, "/dev/mem opened.\n");

				base = mmap(0, MAP_SIZE, PROT_READ \| PROT_WRITE, MAP_SHARED, fd, addr & ~MAP_MASK);

				if (base == (void *) -1) {
				fprintf(stderr, "Cannot open /dev/mem.\n");
				exit(EXIT_FAILURE);
				}

				//fprintf(stderr, "Memory mapped at address %p.\n", base);

				clock = base + (addr & MAP_MASK);

				return clock;
				}
				//Habilitamos el clock de ADC
				void enable_clock_adc(AT91S_PMC * clock){
				clock->PMC_PCER=0x20;
				}
				//Leemos el registro de estado de clock para perifericos
				unsigned int status_clock_adc(AT91S_PMC * clock){
				return (clock->PMC_PCSR);
				}