Matt Arceri / uLCD_gauges

Allows for a 90 frame animated gauge to be display on the uLCD

Dependents:   uLCDgaugeTest

uLCD_gauges.cpp@3:eee40e4de1c4, 2015-03-13 (annotated)

Committer:
Striker121
Date:
Fri Mar 13 15:25:56 2015 +0000
Revision:
3:eee40e4de1c4
Parent:
2:38006c26dda5
Child:
4:069b01d563a3
Doxygen comment changes

Who changed what in which revision?

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Striker121 0:9101c0ce36a1 1 #include "uLCD_gauges.h"
Striker121 0:9101c0ce36a1 2 #include "mbed.h"
Striker121 2:38006c26dda5 3
Striker121 2:38006c26dda5 4 /**
Striker121 3:eee40e4de1c4 5 * @file uLCD_gauges.cpp
Striker121 3:eee40e4de1c4 6 * @brief This cpp file defines all the functions for uLCD_gauges.h
Striker121 3:eee40e4de1c4 7 * @author Matthew Arceri and Harsha Nori
Striker121 3:eee40e4de1c4 8 * @date 3/13/2015
Striker121 3:eee40e4de1c4 9 */
Striker121 3:eee40e4de1c4 10
Striker121 3:eee40e4de1c4 11 /**
Striker121 2:38006c26dda5 12 * Constructor for the uLCD_gauges class. Sets up the value mapping assuming the default gauge is used.
Striker121 2:38006c26dda5 13 * @author Matthew Arceri
Striker121 2:38006c26dda5 14 * @param screen The uLCD instance that is going to be used for the gauge
Striker121 2:38006c26dda5 15 * @param min The minimum value the gauge wil be updated with. Used for mapping.
Striker121 2:38006c26dda5 16 * @param max The maximum value the gauge wil be updated with. Used for mapping.
Striker121 2:38006c26dda5 17 * @date 3/13/2015
Striker121 2:38006c26dda5 18 */
Striker121 0:9101c0ce36a1 19 uLCD_gauges::uLCD_gauges(uLCD_4DGL& screen, float min, float max){
Striker121 0:9101c0ce36a1 20 uLCD = &screen;
Striker121 0:9101c0ce36a1 21 minVal = min;
Striker121 0:9101c0ce36a1 22 maxVal = max;
Striker121 0:9101c0ce36a1 23 mapOffset = 1;
Striker121 2:38006c26dda5 24 highFrame = 90;
Striker121 2:38006c26dda5 25 mapSlope = (highFrame - mapOffset) / (maxVal - minVal);
Striker121 1:5666427710f2 26 memHigh = 0;
Striker121 1:5666427710f2 27 memLow = 0;
Striker121 0:9101c0ce36a1 28 }
Striker121 2:38006c26dda5 29 /**
Striker121 2:38006c26dda5 30 * Constructor for the uLCD_gauges class. Sets up the value mapping for custom gauges.
Striker121 2:38006c26dda5 31 * @author Matthew Arceri
Striker121 2:38006c26dda5 32 * @param screen The uLCD instance that is going to be used for the gauge
Striker121 2:38006c26dda5 33 * @param min The minimum value the gauge wil be updated with. Used for mapping.
Striker121 2:38006c26dda5 34 * @param max The maximum value the gauge wil be updated with. Used for mapping.
Striker121 2:38006c26dda5 35 * @param memoryAddressHigh The ending memory address of the animation that will be displayed as a gauge.
Striker121 2:38006c26dda5 36 * @param memoryAddressLow The starting memory address of the animation that will be displayed as a gauge.
Striker121 2:38006c26dda5 37 * @date 3/13/2015
Striker121 2:38006c26dda5 38 */
Striker121 2:38006c26dda5 39 uLCD_gauges::uLCD_gauges(uLCD_4DGL& screen, float min, float max, int lowF, int highF, long memoryAddressHigh, long memoryAddressLow){
Striker121 1:5666427710f2 40 uLCD = &screen;
Striker121 1:5666427710f2 41 minVal = min;
Striker121 1:5666427710f2 42 maxVal = max;
Striker121 2:38006c26dda5 43 highFrame = highF;
Striker121 2:38006c26dda5 44 mapOffset = lowF;
Striker121 2:38006c26dda5 45 mapSlope = (highFrame - mapOffset) / (maxVal - minVal);
Striker121 1:5666427710f2 46 memHigh = memoryAddressHigh;
Striker121 1:5666427710f2 47 memLow = memoryAddressLow;
Striker121 1:5666427710f2 48 }
Striker121 2:38006c26dda5 49
Striker121 2:38006c26dda5 50 /**
Striker121 2:38006c26dda5 51 * This method repares the uLCD for displaying the gauge. Must be called once after object instancing
Striker121 2:38006c26dda5 52 * @author Matthew Arceri
Striker121 2:38006c26dda5 53 * @date 3/13/15
Striker121 2:38006c26dda5 54 */
Striker121 0:9101c0ce36a1 55 void uLCD_gauges::start() {
Striker121 1:5666427710f2 56 uLCD->baudrate(3000000);
Striker121 0:9101c0ce36a1 57 uLCD->cls();
Striker121 0:9101c0ce36a1 58 uLCD->media_init();
Striker121 0:9101c0ce36a1 59 uLCD->set_sector_address(0,0);
Striker121 0:9101c0ce36a1 60 }
Striker121 0:9101c0ce36a1 61
Striker121 2:38006c26dda5 62 /**
Striker121 2:38006c26dda5 63 * This method updates the gauge based on the new input value
Striker121 2:38006c26dda5 64 * @author Harsha Nori
Striker121 2:38006c26dda5 65 * @param value The value to be mapped onto the display
Striker121 2:38006c26dda5 66 * @date 3/13/15
Striker121 2:38006c26dda5 67 */
Striker121 0:9101c0ce36a1 68 void uLCD_gauges::update(float value){
Striker121 0:9101c0ce36a1 69 //Map value in range minVal to maxVal onto 1 to 99
Striker121 0:9101c0ce36a1 70 int mappedValue = int(mapOffset + mapSlope*(value - minVal));
Striker121 0:9101c0ce36a1 71 uLCD->display_frame(0,0, mappedValue);
Striker121 0:9101c0ce36a1 72 }