PNI / Mbed 2 deprecated BatteryESRTester

First working, tested and calibrated unit

Dependencies:   mbed USBDevice

main.cpp@4:f7cc009aed74, 2017-03-27 (annotated)

Committer:
ruairilong
Date:
Mon Mar 27 21:01:21 2017 +0000
Revision:
4:f7cc009aed74
Parent:
3:a170b248ead8 
Format code and remove unused functions.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ruairilong 2:ddc96642fcdb 1 /* mbed USBJoystick Library Demo
ruairilong 2:ddc96642fcdb 2 * Copyright (c) 2012, v01: Initial version, WH,
ruairilong 2:ddc96642fcdb 3 * Modified USBMouse code ARM Limited.
ruairilong 2:ddc96642fcdb 4 * (c) 2010-2011 mbed.org, MIT License
ruairilong 2:ddc96642fcdb 5 * 2016, v02: Updated USBDevice Lib, Added waitForConnect, Updated 32 bits button
ruairilong 2:ddc96642fcdb 6 *
ruairilong 2:ddc96642fcdb 7 * Permission is hereby granted, free of charge, to any person obtaining a copy
ruairilong 2:ddc96642fcdb 8 * of this software and associated documentation files (the "Software"), to deal
ruairilong 2:ddc96642fcdb 9 * in the Software without restriction, inclumosig without limitation the rights
ruairilong 2:ddc96642fcdb 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ruairilong 2:ddc96642fcdb 11 * copies of the Software, and to permit persons to whom the Software is
ruairilong 2:ddc96642fcdb 12 * furnished to do so, subject to the following conditions:
ruairilong 2:ddc96642fcdb 13 *
ruairilong 2:ddc96642fcdb 14 * The above copyright notice and this permission notice shall be included in
ruairilong 2:ddc96642fcdb 15 * all copies or substantial portions of the Software.
ruairilong 2:ddc96642fcdb 16 *
ruairilong 2:ddc96642fcdb 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ruairilong 2:ddc96642fcdb 18 * IMPLIED, INCLUmosiG BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ruairilong 2:ddc96642fcdb 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ruairilong 2:ddc96642fcdb 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ruairilong 2:ddc96642fcdb 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ruairilong 2:ddc96642fcdb 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ruairilong 2:ddc96642fcdb 23 * THE SOFTWARE.
ruairilong 2:ddc96642fcdb 24 */
JoeMiller 0:197cfa57c3c7 25
ruairilong 2:ddc96642fcdb 26 // Note: you must connect the usb cable to your computer before the program will proceed
JoeMiller 0:197cfa57c3c7 27
ruairilong 2:ddc96642fcdb 28 // USB parts from: https://developer.mbed.org/forum/helloworld/topic/3496/
JoeMiller 0:197cfa57c3c7 29
JoeMiller 0:197cfa57c3c7 30 #include "mbed.h"
ruairilong 2:ddc96642fcdb 31 #include "USBKeyboard.h"
ruairilong 2:ddc96642fcdb 32
ruairilong 2:ddc96642fcdb 33 //USBMouse mouse;
ruairilong 2:ddc96642fcdb 34 USBKeyboard mbedKeyBoard;
ruairilong 2:ddc96642fcdb 35 // Variables for Heartbeat and Status monitoring
ruairilong 2:ddc96642fcdb 36 PwmOut myled1(LED1);
ruairilong 2:ddc96642fcdb 37 PwmOut myled2(LED2);
ruairilong 2:ddc96642fcdb 38 PwmOut myled3(LED3);
ruairilong 2:ddc96642fcdb 39 DigitalOut heartbeatLED(LED4);
JoeMiller 0:197cfa57c3c7 40 Serial pc(SERIAL_TX, SERIAL_RX);
JoeMiller 1:0d88cfafe20e 41 DigitalOut MOSFET(PA_4); // Connected to Gate of MOSFET
JoeMiller 0:197cfa57c3c7 42 AnalogIn VBin(PA_1); // To measure battery Voltage
JoeMiller 0:197cfa57c3c7 43 DigitalOut LED(D4); // Activity indicator
ruairilong 2:ddc96642fcdb 44 DigitalIn enable(PA_5);
ruairilong 2:ddc96642fcdb 45
JoeMiller 1:0d88cfafe20e 46 #define WIRE_LEAD_RES (0.23F)
JoeMiller 0:197cfa57c3c7 47 // BOARD SPECIFIC CALIBRATION CONSTANTS
JoeMiller 0:197cfa57c3c7 48 #define BOARDNUMBER 1
JoeMiller 0:197cfa57c3c7 49 #if BOARDNUMBER == 1
ruairilong 2:ddc96642fcdb 50 #define V_SCALE 3.735935F
JoeMiller 0:197cfa57c3c7 51 #elif BOARDNUMBER == 2
ruairilong 2:ddc96642fcdb 52 #define V_SCALE 3.3F
JoeMiller 0:197cfa57c3c7 53 #elif BOARDNUMBER == 3
ruairilong 2:ddc96642fcdb 54 #define V_SCALE 3.3F
ruairilong 2:ddc96642fcdb 55 #else
ruairilong 2:ddc96642fcdb 56 #define V_SCALE 3.3F
JoeMiller 0:197cfa57c3c7 57 #endif
JoeMiller 0:197cfa57c3c7 58 // Parameters
JoeMiller 1:0d88cfafe20e 59 #define PULSEWIDTH 1.0f // seconds
JoeMiller 0:197cfa57c3c7 60 char serial_inchar,waiting;
JoeMiller 0:197cfa57c3c7 61
JoeMiller 0:197cfa57c3c7 62 void OnSerial(void) // serial port interrupt used in calibration mode
JoeMiller 0:197cfa57c3c7 63 {
JoeMiller 0:197cfa57c3c7 64 serial_inchar = pc.getc();
JoeMiller 0:197cfa57c3c7 65 waiting = 0;
JoeMiller 0:197cfa57c3c7 66 }
JoeMiller 0:197cfa57c3c7 67
ruairilong 2:ddc96642fcdb 68 int main()
ruairilong 2:ddc96642fcdb 69 {
ruairilong 2:ddc96642fcdb 70
ruairilong 2:ddc96642fcdb 71 float OpenVoltage, LoadVoltage, Esr;
ruairilong 2:ddc96642fcdb 72 pc.baud(115200);
JoeMiller 1:0d88cfafe20e 73 printf("Battery ESR Tester\n\r");
JoeMiller 0:197cfa57c3c7 74 pc.attach(&OnSerial);
JoeMiller 1:0d88cfafe20e 75 MOSFET = 0;
JoeMiller 0:197cfa57c3c7 76 LED = 0;
ruairilong 4:f7cc009aed74 77
JoeMiller 0:197cfa57c3c7 78 #if 1 // 0 = Calibration Mode, 1= Discharge test mode
JoeMiller 0:197cfa57c3c7 79
JoeMiller 1:0d88cfafe20e 80 printf("Test Mode\n\r");
ruairilong 2:ddc96642fcdb 81
JoeMiller 1:0d88cfafe20e 82 while(1) {
ruairilong 2:ddc96642fcdb 83
JoeMiller 1:0d88cfafe20e 84 waiting = 1;
ruairilong 2:ddc96642fcdb 85
ruairilong 2:ddc96642fcdb 86 while(enable) {
JoeMiller 1:0d88cfafe20e 87 wait(0.1);
ruairilong 2:ddc96642fcdb 88 }
ruairilong 2:ddc96642fcdb 89 mbedKeyBoard.printf("Test running: ");
ruairilong 2:ddc96642fcdb 90 printf("Test running: ");
ruairilong 2:ddc96642fcdb 91 wait(3); //debounce and force a minimum time between tests to ensure the battery has time to recovery.
JoeMiller 1:0d88cfafe20e 92 OpenVoltage = VBin.read()* V_SCALE;
JoeMiller 1:0d88cfafe20e 93 LED = 1;
JoeMiller 1:0d88cfafe20e 94 MOSFET = 1;
JoeMiller 1:0d88cfafe20e 95 wait(PULSEWIDTH);
JoeMiller 1:0d88cfafe20e 96 LoadVoltage = VBin.read()* V_SCALE;
JoeMiller 0:197cfa57c3c7 97 LED = 0;
JoeMiller 1:0d88cfafe20e 98 MOSFET = 0;
ruairilong 2:ddc96642fcdb 99 Esr = (OpenVoltage-LoadVoltage)/(LoadVoltage / 3.0f)- WIRE_LEAD_RES;
ruairilong 2:ddc96642fcdb 100 mbedKeyBoard.printf("Open Voltage = %1.3f, Loaded Voltage = %1.3f, ESR = %1.3f\n\r",
ruairilong 2:ddc96642fcdb 101 OpenVoltage, LoadVoltage, Esr);
JoeMiller 1:0d88cfafe20e 102 printf("Open Voltage = %1.3f, Loaded Voltage = %1.3f, ESR = %1.3f\n\r",
ruairilong 3:a170b248ead8 103 OpenVoltage, LoadVoltage, Esr);
JoeMiller 1:0d88cfafe20e 104 }
JoeMiller 0:197cfa57c3c7 105
JoeMiller 0:197cfa57c3c7 106 #else
JoeMiller 1:0d88cfafe20e 107
JoeMiller 0:197cfa57c3c7 108 //Perform Board Calibration
JoeMiller 0:197cfa57c3c7 109 printf("\n\rCalibration Mode\n\r");
JoeMiller 0:197cfa57c3c7 110 waiting = 1;
ruairilong 3:a170b248ead8 111
JoeMiller 0:197cfa57c3c7 112 while (pc.readable()) { // flush buffer
ruairilong 2:ddc96642fcdb 113 serial_inchar = pc.getc();
ruairilong 2:ddc96642fcdb 114 }
ruairilong 3:a170b248ead8 115
JoeMiller 1:0d88cfafe20e 116 printf("Set Vin to 3.600V then [press any key]\n\r");
ruairilong 3:a170b248ead8 117
ruairilong 2:ddc96642fcdb 118 while(waiting == 1) {
JoeMiller 0:197cfa57c3c7 119 wait(0.05);
ruairilong 2:ddc96642fcdb 120 }
ruairilong 3:a170b248ead8 121
JoeMiller 1:0d88cfafe20e 122 printf("Reading...\n\r");
JoeMiller 0:197cfa57c3c7 123 wait(0.5);
JoeMiller 1:0d88cfafe20e 124 OpenVoltage = VBin.read();
JoeMiller 1:0d88cfafe20e 125 printf("Cut/paste this calibration into the calibration section...\n\r\n\r");
JoeMiller 1:0d88cfafe20e 126 printf("#define V_SCALE %fF\n\r",3.6/OpenVoltage);
ruairilong 2:ddc96642fcdb 127
ruairilong 3:a170b248ead8 128 #endif
ruairilong 2:ddc96642fcdb 129
JoeMiller 0:197cfa57c3c7 130 }