max5487: added new sensor with example (TESTED AND WORKING)

Signed-off-by: Kiveisha Yevgeniy <yevgeniy.kiveisha@intel.com>
This commit is contained in:
Kiveisha Yevgeniy 2014-08-05 20:16:05 +00:00
parent 45f85e9944
commit 1747fbbe19
7 changed files with 301 additions and 0 deletions

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@ -23,6 +23,7 @@ add_executable (mic-example mic-example.cxx)
add_executable (mpu9150-example mpu9150-example.cxx)
add_executable (maxds3231m-example maxds3231m.cxx)
add_executable (max31723-example max31723.cxx)
add_executable (max5487-example max5487.cxx)
include_directories (${PROJECT_SOURCE_DIR}/src/hmc5883l)
include_directories (${PROJECT_SOURCE_DIR}/src/grove)
@ -44,6 +45,7 @@ include_directories (${PROJECT_SOURCE_DIR}/src/mic)
include_directories (${PROJECT_SOURCE_DIR}/src/mpu9150)
include_directories (${PROJECT_SOURCE_DIR}/src/maxds3231m)
include_directories (${PROJECT_SOURCE_DIR}/src/max31723)
include_directories (${PROJECT_SOURCE_DIR}/src/max5487)
target_link_libraries (compass hmc5883l ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (groveled grove ${CMAKE_THREAD_LIBS_INIT})
@ -70,3 +72,4 @@ target_link_libraries (mic-example mic ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (mpu9150-example mpu9150 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (maxds3231m-example maxds3231m ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (max31723-example max31723 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (max5487-example max5487 ${CMAKE_THREAD_LIBS_INIT})

66
examples/max5487.cxx Normal file
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@ -0,0 +1,66 @@
/*
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include "max5487.h"
#include <signal.h>
upm::MAX5487 *sensor = NULL;
void
sig_handler(int signo)
{
printf("got signal\n");
if (signo == SIGINT) {
printf("exiting application\n");
}
}
int
main(int argc, char **argv)
{
//! [Interesting]
sensor = new upm::MAX5487(7);
// Power LED UP
for (int i = 0; i < 255; i++) {
sensor->setWiperA(i);
usleep (5000);
}
// Power LED DOWN
for (int i = 0; i < 255; i++) {
sensor->setWiperA(255 - i);
usleep (5000);
}
//! [Interesting]
std::cout << "exiting application" << std::endl;
delete sensor;
return 0;
}

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@ -0,0 +1,5 @@
set (libname "max5487")
set (libdescription "Digital potentiometer")
set (module_src ${libname}.cxx)
set (module_h ${libname}.h)
upm_module_init()

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@ -0,0 +1,8 @@
%module jsupm_max5487
%include "../upm.i"
%{
#include "max5487.h"
%}
%include "max5487.h"

117
src/max5487/max5487.cxx Normal file
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@ -0,0 +1,117 @@
/*
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <iostream>
#include <unistd.h>
#include <stdlib.h>
#include "max5487.h"
using namespace upm;
struct MAX5487Exception : public std::exception {
std::string message;
MAX5487Exception (std::string msg) : message (msg) { }
~MAX5487Exception () throw () { }
const char* what() const throw () { return message.c_str(); }
};
MAX5487::MAX5487 (int csn) {
mraa_result_t error = MRAA_SUCCESS;
m_name = "MAX5487";
m_csnPinCtx = mraa_gpio_init (csn);
if (m_csnPinCtx == NULL) {
throw MAX5487Exception ("GPIO failed to initilize");
}
error = mraa_gpio_dir (m_csnPinCtx, MRAA_GPIO_OUT);
if (error != MRAA_SUCCESS) {
throw MAX5487Exception ("GPIO failed to initilize");
}
m_spi = mraa_spi_init (0);
if (m_spi == NULL) {
throw MAX5487Exception ("SPI failed to initilize");
}
CSOff ();
}
MAX5487::~MAX5487() {
mraa_result_t error = MRAA_SUCCESS;
error = mraa_spi_stop(m_spi);
if (error != MRAA_SUCCESS) {
mraa_result_print(error);
}
error = mraa_gpio_close (m_csnPinCtx);
if (error != MRAA_SUCCESS) {
mraa_result_print(error);
}
}
void
MAX5487::setWiperA (uint8_t wiper) {
uint8_t data[2] = { 0x00, 0x00};
CSOn ();
data[0] = R_WR_WIPER_A;
data[1] = wiper;
uint8_t* retData = mraa_spi_write_buf(m_spi, data, 2);
CSOff ();
}
void
MAX5487::setWiperB (uint8_t wiper) {
uint8_t data[2] = { 0x00, 0x00};
CSOn ();
data[0] = R_WR_WIPER_B;
data[1] = wiper;
uint8_t* retData = mraa_spi_write_buf(m_spi, data, 2);
CSOff ();
}
/*
* **************
* private area
* **************
*/
mraa_result_t
MAX5487::CSOn () {
return mraa_gpio_write (m_csnPinCtx, LOW);
}
mraa_result_t
MAX5487::CSOff () {
return mraa_gpio_write (m_csnPinCtx, HIGH);
}

93
src/max5487/max5487.h Normal file
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@ -0,0 +1,93 @@
/*
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include <string>
#include <mraa/aio.h>
#include <mraa/gpio.h>
#include <mraa/spi.h>
#define HIGH 1
#define LOW 0
namespace upm {
/**
* @brief C++ API for MAX5487 chip (Temperature sensor)
*
* This file defines the MAX5487 C++ interface for libmax5487
*
*/
class MAX5487 {
public:
static const uint8_t R_WR_WIPER_A = 0x01;
static const uint8_t R_WR_WIPER_B = 0x02;
/**
* Instanciates a MAX5487 object
*
* @param bus number of used bus
* @param devAddr addres of used i2c device
*/
MAX5487 (int csn);
/**
* MAX5487 object destructor, basicaly it close SPI connection and GPIO.
*/
~MAX5487 ();
/**
* Set wiper for port A.
*/
void setWiperA (uint8_t wiper);
/**
* Set wiper for port B.
*/
void setWiperB (uint8_t wiper);
/**
* Return name of the component
*/
std::string name()
{
return m_name;
}
private:
std::string m_name;
mraa_spi_context m_spi;
mraa_gpio_context m_csnPinCtx;
/**
* Set chip select pin LOW
*/
mraa_result_t CSOn ();
/**
* Set chip select pin HIGH
*/
mraa_result_t CSOff ();
};
}

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@ -0,0 +1,9 @@
%module pyupm_max5487
%include "../upm.i"
%feature("autodoc", "3");
%include "max5487.h"
%{
#include "max5487.h"
%}