charles young / Mbed 2 deprecated GEO_COUNTER_L432KC

Charles Young's development fork. Going forward I only want to push mature code to main repository.

Dependencies:   mbed

Fork of GEO_COUNTER_L432KC by Geo Electronics "Geo Counter"

main.cpp@25:0161bf1adc81, 2018-09-05 (annotated)

Committer:
Charles David Young
Date:
Wed Sep 05 10:15:52 2018 -0700
Revision:
25:0161bf1adc81
Parent:
24:db7494389c03
Child:
28:c81d00ec28a3
Created LED7segDisplay class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
walter76 2:ac0ed3d84d44 1 // GEO COUNTER V1 firmware
walter76 2:ac0ed3d84d44 2 // This FW provides a basic operation of GEO-COUNTER
walter76 2:ac0ed3d84d44 3 //
walter76 2:ac0ed3d84d44 4 // Latest review: August 27, 2018 - Walter Trovo
walter76 1:75827d765e34 5 //
Charles David Young 25:0161bf1adc81 6 // Sep 5, 2018: Charles Young: Created LED7segDisplay class
charlesdavidyoung 24:db7494389c03 7 // Sep 5, 2018: Charles Young: Still developing mode selection. LEDs turn off
charlesdavidyoung 24:db7494389c03 8 // when not in mode selection. Pressing once enters mode selection.
charlesdavidyoung 24:db7494389c03 9 // Pressing again enters submode. Temporarily the rotary switch
charlesdavidyoung 24:db7494389c03 10 // adjusts the display brightness. This is just for testing.
charlesdavidyoung 24:db7494389c03 11 // Sep 4, 2018: Charles Young: Created RotarySwitch class to manage mode selection
walter76 1:75827d765e34 12 // Feb 14, 2018: initial release aimed to test the counters, the serial port
walter76 1:75827d765e34 13 // the PWM output and the MAX7219 operation.
walter76 1:75827d765e34 14 // Feb 15, 2018: Removed MAX7219 libray (replaced with custom routine).
walter76 1:75827d765e34 15 // Added 74HC595 routine. Added beep. Added Gate_write
walter76 1:75827d765e34 16 //
walter76 2:ac0ed3d84d44 17
walter76 1:75827d765e34 18
walter76 1:75827d765e34 19 // this block includes key libraries
walter76 1:75827d765e34 20 #include <string> // strings management
charlesdavidyoung 24:db7494389c03 21 #include "RotarySwitch.hpp"
Charles David Young 25:0161bf1adc81 22 #include "LED7segDisplay.hpp"
charlesdavidyoung 20:fb73eaaf0894 23
charlesdavidyoung 24:db7494389c03 24 // Everything associated with the rotary switch and the associated LEDs
charlesdavidyoung 24:db7494389c03 25 // is hidden in this class.
charlesdavidyoung 20:fb73eaaf0894 26 RotarySwitch ModeSwitch;
Charles David Young 25:0161bf1adc81 27 LED7segDisplay DigitsDisplay;
walter76 1:75827d765e34 28
walter76 1:75827d765e34 29 // definitions of fixed parameters
walter76 0:6d1742703713 30
walter76 1:75827d765e34 31 #define TGATE 10 // gate time (currently fixed for testing purpose)
Charles David Young 21:5640ebc362a0 32
charlesdavidyoung 5:4f90b458dbdf 33 // LED on processor board
charlesdavidyoung 5:4f90b458dbdf 34 DigitalOut led1(LED1);
walter76 1:75827d765e34 35
walter76 1:75827d765e34 36 // definitions of peripherals and devices
Charles David Young 7:9f975e00600c 37
charlesdavidyoung 17:6eed17197004 38 I2C i2c(D4, D5); // I2C port
charlesdavidyoung 17:6eed17197004 39 Ticker SecTenth_Beat; // .1 second ticker
walter76 1:75827d765e34 40 Ticker Sec_Beat; // 1 second ticker
walter76 1:75827d765e34 41 Serial PC(USBTX, USBRX); // Virtual COM via USB (PC connection)
walter76 1:75827d765e34 42 Serial GPS(D1, D0); // Serial port for GPS module
walter76 0:6d1742703713 43
walter76 0:6d1742703713 44 // Global variables
walter76 1:75827d765e34 45 time_t seconds; // Real-Time Clock (RTC) timestamp
walter76 1:75827d765e34 46 unsigned int value = 0; // displayed value on the 6-digits of the display
walter76 1:75827d765e34 47 uint8_t gate = TGATE; // displayed value on the 2-digits display
walter76 1:75827d765e34 48 uint32_t Count1, Count2; // pulse counters (32-bit)
walter76 1:75827d765e34 49 char Text[40]=""; // used to send messages over the serial port
walter76 1:75827d765e34 50 uint8_t Disp_mode = 0x01, Disp_unit = 0xA0; // status of 1st row and 2nd rows of LEDs
kd5byb 4:b17c6556cf1f 51 bool Stopped = 0; // status of counting activity
charlesdavidyoung 5:4f90b458dbdf 52 bool StartStopPressed = 0;// status of counting activity
walter76 1:75827d765e34 53 double ADC_val; // used to read ADC value
charlesdavidyoung 24:db7494389c03 54 float direction = 0;
walter76 0:6d1742703713 55
walter76 1:75827d765e34 56 // ----- Prototypes of routines (defined below the main) -------------------
Charles David Young 16:b2e77eb76ab4 57 void UpdateInput(void); // periodically called by the ticker
Charles David Young 16:b2e77eb76ab4 58 void UpdateOutput(void); // periodically called by the ticker
walter76 1:75827d765e34 59 void Count1_up(void); // called every time an edge is detected on TRIG1 pin
walter76 1:75827d765e34 60 void Count2_up(void); // called every time an edge is detected on TRIG2 pin
walter76 1:75827d765e34 61 void Beep(void); // used to generate a short beep (buzzer)
walter76 0:6d1742703713 62
walter76 0:6d1742703713 63 //==============================================================================
walter76 0:6d1742703713 64 //==============================================================================
walter76 0:6d1742703713 65
walter76 0:6d1742703713 66 int main()
walter76 0:6d1742703713 67 {
walter76 0:6d1742703713 68
walter76 1:75827d765e34 69 PC.baud(115200); // set baud-rate of virtual COM port (PC connection)
charlesdavidyoung 5:4f90b458dbdf 70 PC.printf("\nGEO COUNTER V1 2108");
walter76 1:75827d765e34 71 PC.printf(__DATE__);
walter76 1:75827d765e34 72 PC.printf(" ");
walter76 1:75827d765e34 73 PC.printf(__TIME__);
walter76 1:75827d765e34 74
walter76 2:ac0ed3d84d44 75 GPS.baud(9600); // set the baud-rate of the serial port dedicated to the GPS
walter76 0:6d1742703713 76
walter76 1:75827d765e34 77 CS1 = 1; // presets CS of MAX7219
walter76 1:75827d765e34 78 CS2 = 1; // preset CS of 74HC595
walter76 1:75827d765e34 79
Charles David Young 25:0161bf1adc81 80 DigitsDisplay.Display_6D_write(0x543210);
Charles David Young 25:0161bf1adc81 81 DigitsDisplay.Display_2D_write(TGATE);
walter76 0:6d1742703713 82
walter76 1:75827d765e34 83 // RTC is supposed to be loose time at power down (no backup battery)
walter76 1:75827d765e34 84 // An initialization is performed anyway
walter76 1:75827d765e34 85 set_time(0); // Set time
charlesdavidyoung 24:db7494389c03 86
walter76 1:75827d765e34 87 PWM.period_ms(3); // set the PWM period
walter76 1:75827d765e34 88 PWM.write(0.8); // set the PWM duty-cycle
walter76 1:75827d765e34 89
walter76 1:75827d765e34 90 Beep(); // initial beep
walter76 1:75827d765e34 91
walter76 1:75827d765e34 92 // set the 1 sec ticker to periodically call the Update() routine
walter76 1:75827d765e34 93 // NOTE: this is also the 1-sec time base for counters. A better approach
walter76 1:75827d765e34 94 // would replace the ticker with an interrupt from the RTC (to be implemented)
charlesdavidyoung 17:6eed17197004 95 SecTenth_Beat.attach_us(&UpdateInput, 100000);
Charles David Young 16:b2e77eb76ab4 96 Sec_Beat.attach_us(&UpdateOutput, 1000000);
walter76 0:6d1742703713 97 //RTC::attach(&Update, RTC::Second);
walter76 1:75827d765e34 98 //RTC::detach(RTC::Second);
walter76 1:75827d765e34 99
walter76 1:75827d765e34 100 // main loop does nothing as all activities are interrupt driven
walter76 0:6d1742703713 101 while(1)
walter76 0:6d1742703713 102 {
walter76 2:ac0ed3d84d44 103 // dance (or drink a beer)
walter76 0:6d1742703713 104 }
walter76 0:6d1742703713 105 }
walter76 0:6d1742703713 106
walter76 0:6d1742703713 107
walter76 1:75827d765e34 108 //-------- END OF MAIN --------------
walter76 0:6d1742703713 109 //==============================================================================
walter76 0:6d1742703713 110
walter76 1:75827d765e34 111 // Definition of routines
walter76 1:75827d765e34 112
walter76 1:75827d765e34 113 //---------------------------------------------------------------------------
walter76 1:75827d765e34 114 // Update values to be displayed
Charles David Young 10:f48cc6be5ae8 115 void logToPC()
Charles David Young 10:f48cc6be5ae8 116 {
Charles David Young 10:f48cc6be5ae8 117 PC.printf("\nADC: %.02f", ADC_val);
Charles David Young 10:f48cc6be5ae8 118 PC.printf(Stopped ? " stopped" : " started");
Charles David Young 10:f48cc6be5ae8 119 // Timestamp to PC (debug)
Charles David Young 10:f48cc6be5ae8 120 seconds = time(NULL); // get current time
Charles David Young 10:f48cc6be5ae8 121 strftime(Text, 50, "%H:%M:%S", localtime(&seconds));
Charles David Young 10:f48cc6be5ae8 122 PC.printf(" RTC: %s, CNT1: %7d CNT2: %7d",Text, Count1, Count2);
charlesdavidyoung 24:db7494389c03 123 PC.printf(" wheel %f", direction);
Charles David Young 10:f48cc6be5ae8 124 }
walter76 1:75827d765e34 125
Charles David Young 16:b2e77eb76ab4 126 void UpdateOutput()
charlesdavidyoung 18:ef5678ab1889 127 {
charlesdavidyoung 24:db7494389c03 128 // This must be called periodically to update the LEDs
charlesdavidyoung 24:db7494389c03 129 ModeSwitch.UpdateOutput();
charlesdavidyoung 24:db7494389c03 130
Charles David Young 16:b2e77eb76ab4 131 if(Stopped)
Charles David Young 16:b2e77eb76ab4 132 {
Charles David Young 16:b2e77eb76ab4 133 // disable interrupts on TRIG1 and TRIG2
Charles David Young 16:b2e77eb76ab4 134
Charles David Young 16:b2e77eb76ab4 135 TRIG1.rise(NULL);
Charles David Young 16:b2e77eb76ab4 136 TRIG2.rise(NULL);
Charles David Young 16:b2e77eb76ab4 137
Charles David Young 16:b2e77eb76ab4 138 // show zero gate time
Charles David Young 16:b2e77eb76ab4 139 gate = 0;
Charles David Young 25:0161bf1adc81 140 DigitsDisplay.Display_2D_write(gate);
Charles David Young 16:b2e77eb76ab4 141
Charles David Young 16:b2e77eb76ab4 142 // show selected content on main display
Charles David Young 25:0161bf1adc81 143 DigitsDisplay.Display_6D_write(Count1); // refresh the main display
Charles David Young 16:b2e77eb76ab4 144 }
Charles David Young 16:b2e77eb76ab4 145
Charles David Young 16:b2e77eb76ab4 146 else
Charles David Young 16:b2e77eb76ab4 147 {
Charles David Young 16:b2e77eb76ab4 148 // Enable interrupts on rising edge of digital inputs TRIG1 & TRIG2
Charles David Young 16:b2e77eb76ab4 149 TRIG1.rise(&Count1_up);
Charles David Young 16:b2e77eb76ab4 150 TRIG2.rise(&Count2_up);
Charles David Young 16:b2e77eb76ab4 151
Charles David Young 16:b2e77eb76ab4 152 if(gate==0) // show the counter value at the end of the gate time
Charles David Young 16:b2e77eb76ab4 153 {
Charles David Young 25:0161bf1adc81 154 DigitsDisplay.Display_6D_write(Count1); // refresh the main display
Charles David Young 7:9f975e00600c 155
Charles David Young 16:b2e77eb76ab4 156 Count1 = 0; // clear both counters
Charles David Young 16:b2e77eb76ab4 157 Count2 = 0;
Charles David Young 16:b2e77eb76ab4 158 gate = TGATE;// and reload the gate time
Charles David Young 16:b2e77eb76ab4 159 }
Charles David Young 16:b2e77eb76ab4 160
Charles David Young 25:0161bf1adc81 161 DigitsDisplay.Display_2D_write(gate); // show gate time countdown
Charles David Young 16:b2e77eb76ab4 162 gate--;
Charles David Young 16:b2e77eb76ab4 163 }
Charles David Young 16:b2e77eb76ab4 164 }
Charles David Young 16:b2e77eb76ab4 165
Charles David Young 16:b2e77eb76ab4 166 void UpdateInput()
charlesdavidyoung 24:db7494389c03 167 {
charlesdavidyoung 24:db7494389c03 168 // This must be called periodically to monitor switch input
charlesdavidyoung 24:db7494389c03 169 direction = ModeSwitch.UpdateInput();
Charles David Young 25:0161bf1adc81 170 if (direction > 0)
charlesdavidyoung 24:db7494389c03 171 {
Charles David Young 25:0161bf1adc81 172 DigitsDisplay.Display_brightness_up();
charlesdavidyoung 24:db7494389c03 173 }
charlesdavidyoung 24:db7494389c03 174 else
Charles David Young 25:0161bf1adc81 175 if (direction < 0)
charlesdavidyoung 24:db7494389c03 176 {
Charles David Young 25:0161bf1adc81 177 DigitsDisplay.Display_brightness_down();
charlesdavidyoung 24:db7494389c03 178 }
charlesdavidyoung 24:db7494389c03 179
Charles David Young 16:b2e77eb76ab4 180 ADC_val = KEYB.read(); // read voltage from keyboard
Charles David Young 16:b2e77eb76ab4 181 if ( (ADC_val<0.1) // START/STOP pushbutton pressed
Charles David Young 16:b2e77eb76ab4 182 && (!StartStopPressed))
Charles David Young 16:b2e77eb76ab4 183 {
Charles David Young 16:b2e77eb76ab4 184 StartStopPressed = true;
Charles David Young 16:b2e77eb76ab4 185 Stopped=!Stopped; // toggle status
Charles David Young 16:b2e77eb76ab4 186 }
Charles David Young 16:b2e77eb76ab4 187 else
Charles David Young 16:b2e77eb76ab4 188 StartStopPressed = false;
charlesdavidyoung 5:4f90b458dbdf 189
Charles David Young 16:b2e77eb76ab4 190 if((ADC_val>0.6)&&(ADC_val<0.7)) // CLEAR pushbutton pressed
Charles David Young 16:b2e77eb76ab4 191 {
Charles David Young 16:b2e77eb76ab4 192 Count1 = 0; // clear counters
Charles David Young 16:b2e77eb76ab4 193 Count2 = 0;
charlesdavidyoung 5:4f90b458dbdf 194 }
Charles David Young 16:b2e77eb76ab4 195 logToPC();
Charles David Young 16:b2e77eb76ab4 196 return;
Charles David Young 16:b2e77eb76ab4 197 }
walter76 1:75827d765e34 198
walter76 0:6d1742703713 199 //---------------------------------------------------------------------------
walter76 1:75827d765e34 200 // Increment CNT1 every time a rising edge is detected on TRIG1 (interrupt)
walter76 1:75827d765e34 201
walter76 1:75827d765e34 202 void Count1_up(void)
walter76 1:75827d765e34 203 {
walter76 1:75827d765e34 204 Count1++;
walter76 1:75827d765e34 205 return;
walter76 1:75827d765e34 206 }
walter76 1:75827d765e34 207
walter76 1:75827d765e34 208 //---------------------------------------------------------------------------
walter76 1:75827d765e34 209 // Increment CNT1 every time a rising edge is detected on TRIG2 (interrupt)
walter76 1:75827d765e34 210
walter76 1:75827d765e34 211 void Count2_up(void)
walter76 1:75827d765e34 212 {
walter76 1:75827d765e34 213 Count2++;
walter76 1:75827d765e34 214 return;
walter76 1:75827d765e34 215 }
walter76 1:75827d765e34 216
walter76 1:75827d765e34 217
walter76 1:75827d765e34 218 //---------------------------------------------------------------------------
walter76 1:75827d765e34 219 //Generates a short beep via BUZZ
walter76 1:75827d765e34 220
walter76 1:75827d765e34 221 void Beep(void)
walter76 1:75827d765e34 222 {
walter76 1:75827d765e34 223 BUZZ = 1; // turn-on the buzzer
walter76 1:75827d765e34 224 wait(0.3); // wait
walter76 1:75827d765e34 225 BUZZ = 0; // turn-off the buzzer
walter76 0:6d1742703713 226 return;
walter76 0:6d1742703713 227 }
walter76 0:6d1742703713 228
walter76 1:75827d765e34 229 //-------- END OF FILE --------------
walter76 1:75827d765e34 230 //==============================================================================