src/master/cdm_daq.cpp File Reference

Master-side implementation of simple access functions to DAQ services provided by a ChapDAQ slave. More...

#include <cdm_link.h>
#include <cdm_daq.h>
#include <stdio.h>
#include <string.h>

Go to the source code of this file.

Defines
#define	MSG_BUF_SIZE   100
Functions
cdm_Error	cdm_DAQWriteDigitalLine (uint8_t subdevice, uint8_t line, uint8_t value)
	Writes the digital output of a given line in a given subdevice.
cd_Error	cdm_DAQReadDigitalLine (uint8_t subdevice, uint8_t line, uint8_t *value)
cdm_Error	cdm_DAQReadDigitalFrecuency (int subdevice, double *value)
cdm_Error	cdm_DAQWritePWM (int subdevice, double dutty_cycle)

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Detailed Description

Master-side implementation of simple access functions to DAQ services provided by a ChapDAQ slave.

Bla, bla .... demà serà

Author:

Angel Perles

Date:

5/2010, 4/2011

Definition in file cdm_daq.cpp.

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Function Documentation

cdm_Error cdm_DAQWriteDigitalLine	(	uint8_t	subdevice,
		uint8_t	line,
		uint8_t	value
	)

Writes the digital output of a given line in a given subdevice.

Most digital output systems are organized in groups of lines, (8, 16, 32 ...) and the aim of this function is to handle only one line a given group

Parameters:

	subdevice	target subdevice, an integer between 0 and 255
	line	line to be modifided, in general, a value between 0 and 31, but depends on the target slave
	value	state to be written to thew line, mus be 0 or 1

Returns:

the result of the operation, being cd_Error_NoError if all worked OK

Example:

      cd_Error my_error;

      my_error = cdm_DAQWriteDigitalLine(2,31,1);
      if (my_error != CD_Erro_NoError) {
            printf("Ups, this failed with error %s\n", cd_ErrorStr(my_error);
      }
   

Definition at line 45 of file cdm_daq.cpp.