Naveen Kumar B / Mbed 2 deprecated led_matrix_smily_STM32L476

led matrix based on max7219 connected to nucleo-l476rg

Dependencies:   mbed MAX7219

main.cpp@1:9fa35bcbc634, 2020-10-07 (annotated)

Committer:
NaveenKumarB
Date:
Wed Oct 07 11:23:59 2020 +0000
Revision:
1:9fa35bcbc634
Parent:
0:f11d86c27d4c 
led Smile

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stek542 0:f11d86c27d4c 1 #include "max7219.h"
stek542 0:f11d86c27d4c 2
NaveenKumarB 1:9fa35bcbc634 3 void printNumber(uint16_t number, uint8_t noOfDigits);
NaveenKumarB 1:9fa35bcbc634 4
NaveenKumarB 1:9fa35bcbc634 5 Max7219 max7219(D11, NC, D13, D10);//D11->MOSI - 15(Nucleo), MISO, D13->CLK ->11(Nucleo), D10->CS -17(Nucleo)
NaveenKumarB 1:9fa35bcbc634 6 uint8_t numberOfDevices = 4;
NaveenKumarB 1:9fa35bcbc634 7
stek542 0:f11d86c27d4c 8 //DigitalOut my_sck(D13);
NaveenKumarB 1:9fa35bcbc634 9
NaveenKumarB 1:9fa35bcbc634 10 const unsigned char num1[]= {
NaveenKumarB 1:9fa35bcbc634 11 0x00,0x00,0x00,0x42,0x7F,0x40,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 12 }; //1
NaveenKumarB 1:9fa35bcbc634 13 const unsigned char num2[]= {
NaveenKumarB 1:9fa35bcbc634 14 0x00,0x46,0x61,0x51,0x49,0x46,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 15 }; //2
NaveenKumarB 1:9fa35bcbc634 16 const unsigned char num3[]= {
NaveenKumarB 1:9fa35bcbc634 17 0x00,0x22,0x41,0x49,0x49,0x36,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 18 }; //3
NaveenKumarB 1:9fa35bcbc634 19 const unsigned char num4[]= {
NaveenKumarB 1:9fa35bcbc634 20 0x00,0x0C,0x0A,0x09,0x7F,0x08,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 21 }; //4
NaveenKumarB 1:9fa35bcbc634 22 const unsigned char num5[]= {
NaveenKumarB 1:9fa35bcbc634 23 0x00,0x00,0x4F,0x49,0x49,0x31,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 24 }; //5
NaveenKumarB 1:9fa35bcbc634 25 const unsigned char num6[]= {
NaveenKumarB 1:9fa35bcbc634 26 0x00,0x00,0x3C,0x4A,0x49,0x30,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 27 }; //6
NaveenKumarB 1:9fa35bcbc634 28 const unsigned char num7[]= {
NaveenKumarB 1:9fa35bcbc634 29 0x00,0x00,0x61,0x11,0x09,0x07,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 30 }; //7
NaveenKumarB 1:9fa35bcbc634 31 const unsigned char num8[]= {
NaveenKumarB 1:9fa35bcbc634 32 0x00,0x00,0x36,0x49,0x49,0x36,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 33 }; //8
NaveenKumarB 1:9fa35bcbc634 34 const unsigned char num9[]= {
NaveenKumarB 1:9fa35bcbc634 35 0x00,0x00,0x06,0x49,0x49,0x3E,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 36 }; //9
NaveenKumarB 1:9fa35bcbc634 37 const unsigned char num0[]= {
NaveenKumarB 1:9fa35bcbc634 38 0x00,0x00,0x3E,0x41,0x41,0x3E,0x00,0x00
NaveenKumarB 1:9fa35bcbc634 39 }; //0
NaveenKumarB 1:9fa35bcbc634 40
NaveenKumarB 1:9fa35bcbc634 41 uint8_t smiley[] = {0x3c, 0x42, 0x81,0xA5, 0x81, 0xA5, 0x5A, 0x3C};
NaveenKumarB 1:9fa35bcbc634 42 uint8_t numberFont[10][8] = {
NaveenKumarB 1:9fa35bcbc634 43 0x18,0x24,0x24,0x24,0x24,0x24,0x18,0x00,//0
NaveenKumarB 1:9fa35bcbc634 44 0x08,0x18,0x08,0x08,0x08,0x08,0x1C,0x00,//1
NaveenKumarB 1:9fa35bcbc634 45 0x38,0x44,0x44,0x08,0x10,0x20,0x7C,0x00,//2
NaveenKumarB 1:9fa35bcbc634 46 0x38,0x44,0x04,0x18,0x04,0x44,0x38,0x00,//3
NaveenKumarB 1:9fa35bcbc634 47 0x18,0x28,0x48,0x7C,0x08,0x08,0x08,0x00,//4
NaveenKumarB 1:9fa35bcbc634 48 0x3C,0x20,0x20,0x38,0x04,0x04,0x38,0x00,//5
NaveenKumarB 1:9fa35bcbc634 49 0x08,0x10,0x20,0x38,0x24,0x24,0x18,0x00,//6
NaveenKumarB 1:9fa35bcbc634 50
NaveenKumarB 1:9fa35bcbc634 51 0x3C,0x04,0x04,0x08,0x10,0x20,0x20,0x00,//7
NaveenKumarB 1:9fa35bcbc634 52 0x18,0x24,0x24,0x18,0x24,0x24,0x18,0x00,//8
NaveenKumarB 1:9fa35bcbc634 53 0x18,0x24,0x24,0x1C,0x04,0x04,0x18,0x00,//9
NaveenKumarB 1:9fa35bcbc634 54 };
NaveenKumarB 1:9fa35bcbc634 55
stek542 0:f11d86c27d4c 56 int main()
stek542 0:f11d86c27d4c 57 {
NaveenKumarB 1:9fa35bcbc634 58 uint8_t col = 0;
NaveenKumarB 1:9fa35bcbc634 59 uint8_t row = 0;
NaveenKumarB 1:9fa35bcbc634 60
NaveenKumarB 1:9fa35bcbc634 61 max7219.set_num_devices(numberOfDevices);
stek542 0:f11d86c27d4c 62
stek542 0:f11d86c27d4c 63 max7219_configuration_t cfg = {
stek542 0:f11d86c27d4c 64 .device_number = 1,
stek542 0:f11d86c27d4c 65 .decode_mode = 0,
stek542 0:f11d86c27d4c 66 .intensity = Max7219::MAX7219_INTENSITY_3,
stek542 0:f11d86c27d4c 67 .scan_limit = Max7219::MAX7219_SCAN_8
stek542 0:f11d86c27d4c 68 };
NaveenKumarB 1:9fa35bcbc634 69 wait_ms(100);
NaveenKumarB 1:9fa35bcbc634 70 max7219.init_display(cfg);
NaveenKumarB 1:9fa35bcbc634 71 wait_ms(100);
NaveenKumarB 1:9fa35bcbc634 72 // max7219.enable_device(2);
NaveenKumarB 1:9fa35bcbc634 73 // max7219.enable_device(2);
NaveenKumarB 1:9fa35bcbc634 74 max7219.enable_display();
NaveenKumarB 1:9fa35bcbc634 75 // max7219.set_display_test();
NaveenKumarB 1:9fa35bcbc634 76 wait_ms(100);
stek542 0:f11d86c27d4c 77
NaveenKumarB 1:9fa35bcbc634 78 // max7219.write_digit(1,1,0b00111100);
NaveenKumarB 1:9fa35bcbc634 79 // max7219.write_digit(1,2,0b01000010);
NaveenKumarB 1:9fa35bcbc634 80 // max7219.write_digit(1,3,0b10000001);
NaveenKumarB 1:9fa35bcbc634 81 // max7219.write_digit(1,4,0b10100101);
NaveenKumarB 1:9fa35bcbc634 82 // max7219.write_digit(1,5,0b10000001);
NaveenKumarB 1:9fa35bcbc634 83 // max7219.write_digit(1,6,0b10100101);
NaveenKumarB 1:9fa35bcbc634 84 // max7219.write_digit(1,7,0b01011010);
NaveenKumarB 1:9fa35bcbc634 85 // max7219.write_digit(1,8,0b00111100);
stek542 0:f11d86c27d4c 86
NaveenKumarB 1:9fa35bcbc634 87 // max7219.write_digit(2,1,0b00111100);
NaveenKumarB 1:9fa35bcbc634 88 // max7219.write_digit(2,2,0b01000010);
NaveenKumarB 1:9fa35bcbc634 89 // max7219.write_digit(2,3,0b10000001);
NaveenKumarB 1:9fa35bcbc634 90 // max7219.write_digit(2,4,0b10100101);
NaveenKumarB 1:9fa35bcbc634 91 // max7219.write_digit(2,5,0b10000001);
NaveenKumarB 1:9fa35bcbc634 92 // max7219.write_digit(2,6,0b10100101);
NaveenKumarB 1:9fa35bcbc634 93 // max7219.write_digit(2,7,0b01011010);
NaveenKumarB 1:9fa35bcbc634 94 // max7219.write_digit(2,8,0b00111100);
NaveenKumarB 1:9fa35bcbc634 95
NaveenKumarB 1:9fa35bcbc634 96 max7219.write_digit(3,1,0b00111100);
NaveenKumarB 1:9fa35bcbc634 97 max7219.write_digit(3,2,0b01000010);
NaveenKumarB 1:9fa35bcbc634 98 max7219.write_digit(3,3,0b10000001);
NaveenKumarB 1:9fa35bcbc634 99 max7219.write_digit(3,4,0b10100101);
NaveenKumarB 1:9fa35bcbc634 100 max7219.write_digit(3,5,0b10000001);
NaveenKumarB 1:9fa35bcbc634 101 max7219.write_digit(3,6,0b10100101);
NaveenKumarB 1:9fa35bcbc634 102 max7219.write_digit(3,7,0b01011010);
NaveenKumarB 1:9fa35bcbc634 103 max7219.write_digit(3,8,0b00111100);
NaveenKumarB 1:9fa35bcbc634 104 wait_ms(2000);
NaveenKumarB 1:9fa35bcbc634 105
NaveenKumarB 1:9fa35bcbc634 106 max7219.device_all_on(1);
NaveenKumarB 1:9fa35bcbc634 107
NaveenKumarB 1:9fa35bcbc634 108 wait_ms(2000);
NaveenKumarB 1:9fa35bcbc634 109
NaveenKumarB 1:9fa35bcbc634 110 max7219.device_all_off(1);
NaveenKumarB 1:9fa35bcbc634 111 wait_ms(2000);
NaveenKumarB 1:9fa35bcbc634 112 uint8_t number;
NaveenKumarB 1:9fa35bcbc634 113
NaveenKumarB 1:9fa35bcbc634 114 max7219.display_all_off();
NaveenKumarB 1:9fa35bcbc634 115 uint8_t noOfDigits =2;
NaveenKumarB 1:9fa35bcbc634 116
stek542 0:f11d86c27d4c 117 while (1) {
stek542 0:f11d86c27d4c 118
NaveenKumarB 1:9fa35bcbc634 119 // number = 0;
NaveenKumarB 1:9fa35bcbc634 120 // for(col = 1; col <= numberOfDevices; col++)
NaveenKumarB 1:9fa35bcbc634 121 // {
NaveenKumarB 1:9fa35bcbc634 122 // for(row = 1; row < 9; row++)
NaveenKumarB 1:9fa35bcbc634 123 // {
NaveenKumarB 1:9fa35bcbc634 124 // max7219.write_digit(col,row,numberFont[number][row-1]);
NaveenKumarB 1:9fa35bcbc634 125 // }
NaveenKumarB 1:9fa35bcbc634 126 // number++;
NaveenKumarB 1:9fa35bcbc634 127 // wait_ms(2000);
NaveenKumarB 1:9fa35bcbc634 128 // max7219.device_all_off(col);
NaveenKumarB 1:9fa35bcbc634 129 // }
NaveenKumarB 1:9fa35bcbc634 130 printNumber(12, noOfDigits);
NaveenKumarB 1:9fa35bcbc634 131 wait_ms(1000);
NaveenKumarB 1:9fa35bcbc634 132 printNumber(345, 3);
NaveenKumarB 1:9fa35bcbc634 133 wait_ms(1000);
NaveenKumarB 1:9fa35bcbc634 134 printNumber(6789, 4);
NaveenKumarB 1:9fa35bcbc634 135 wait_ms(1000);
NaveenKumarB 1:9fa35bcbc634 136 printNumber(78, noOfDigits);
NaveenKumarB 1:9fa35bcbc634 137 wait_ms(1000);
NaveenKumarB 1:9fa35bcbc634 138 printNumber(90, noOfDigits);
NaveenKumarB 1:9fa35bcbc634 139 wait_ms(1000);
stek542 0:f11d86c27d4c 140
stek542 0:f11d86c27d4c 141 }
NaveenKumarB 1:9fa35bcbc634 142 }
NaveenKumarB 1:9fa35bcbc634 143
NaveenKumarB 1:9fa35bcbc634 144 void printNumber(uint16_t number, uint8_t noOfDigits)
NaveenKumarB 1:9fa35bcbc634 145 {
NaveenKumarB 1:9fa35bcbc634 146 uint8_t right, rMiddle, lMiddle, left, col, row;
NaveenKumarB 1:9fa35bcbc634 147 max7219.display_all_off();
NaveenKumarB 1:9fa35bcbc634 148 if(noOfDigits == 2)
NaveenKumarB 1:9fa35bcbc634 149 {
NaveenKumarB 1:9fa35bcbc634 150 right = number%10;
NaveenKumarB 1:9fa35bcbc634 151 rMiddle = (uint8_t)(number / 10);
NaveenKumarB 1:9fa35bcbc634 152 }
NaveenKumarB 1:9fa35bcbc634 153 else if(noOfDigits == 3)
NaveenKumarB 1:9fa35bcbc634 154 {
NaveenKumarB 1:9fa35bcbc634 155 right = number%10;
NaveenKumarB 1:9fa35bcbc634 156 rMiddle = (uint8_t)((number%100)/10);
NaveenKumarB 1:9fa35bcbc634 157 lMiddle = (uint8_t)(number/100);
NaveenKumarB 1:9fa35bcbc634 158 }
NaveenKumarB 1:9fa35bcbc634 159 else if(noOfDigits == 4)
NaveenKumarB 1:9fa35bcbc634 160 {
NaveenKumarB 1:9fa35bcbc634 161 right = number%10;
NaveenKumarB 1:9fa35bcbc634 162 rMiddle = (uint8_t)((number%100)/10);
NaveenKumarB 1:9fa35bcbc634 163 lMiddle = (uint8_t)((number%1000)/100);
NaveenKumarB 1:9fa35bcbc634 164 left = (uint8_t)(number/1000);
NaveenKumarB 1:9fa35bcbc634 165 }
NaveenKumarB 1:9fa35bcbc634 166 else if(noOfDigits == 1)
NaveenKumarB 1:9fa35bcbc634 167 {
NaveenKumarB 1:9fa35bcbc634 168 right = number;
NaveenKumarB 1:9fa35bcbc634 169 }
NaveenKumarB 1:9fa35bcbc634 170
NaveenKumarB 1:9fa35bcbc634 171 for(col = 1; col <= noOfDigits; col++)
NaveenKumarB 1:9fa35bcbc634 172 {
NaveenKumarB 1:9fa35bcbc634 173 if(col == 1)
NaveenKumarB 1:9fa35bcbc634 174 {
NaveenKumarB 1:9fa35bcbc634 175 for(row = 1; row < 9; row++)
NaveenKumarB 1:9fa35bcbc634 176 {
NaveenKumarB 1:9fa35bcbc634 177 max7219.write_digit(col,row,numberFont[right][row-1]);
NaveenKumarB 1:9fa35bcbc634 178 }
NaveenKumarB 1:9fa35bcbc634 179
NaveenKumarB 1:9fa35bcbc634 180 }
NaveenKumarB 1:9fa35bcbc634 181 if(col == 2)
NaveenKumarB 1:9fa35bcbc634 182 {
NaveenKumarB 1:9fa35bcbc634 183 for(row = 1; row < 9; row++)
NaveenKumarB 1:9fa35bcbc634 184 {
NaveenKumarB 1:9fa35bcbc634 185 max7219.write_digit(col,row,numberFont[rMiddle][row-1]);
NaveenKumarB 1:9fa35bcbc634 186 }
NaveenKumarB 1:9fa35bcbc634 187
NaveenKumarB 1:9fa35bcbc634 188 }
NaveenKumarB 1:9fa35bcbc634 189 if(col == 3)
NaveenKumarB 1:9fa35bcbc634 190 {
NaveenKumarB 1:9fa35bcbc634 191 for(row = 1; row < 9; row++)
NaveenKumarB 1:9fa35bcbc634 192 {
NaveenKumarB 1:9fa35bcbc634 193 max7219.write_digit(col,row,numberFont[lMiddle][row-1]);
NaveenKumarB 1:9fa35bcbc634 194 }
NaveenKumarB 1:9fa35bcbc634 195
NaveenKumarB 1:9fa35bcbc634 196 }
NaveenKumarB 1:9fa35bcbc634 197 if(col == 4)
NaveenKumarB 1:9fa35bcbc634 198 {
NaveenKumarB 1:9fa35bcbc634 199 for(row = 1; row < 9; row++)
NaveenKumarB 1:9fa35bcbc634 200 {
NaveenKumarB 1:9fa35bcbc634 201 max7219.write_digit(col,row,numberFont[left][row-1]);
NaveenKumarB 1:9fa35bcbc634 202 }
NaveenKumarB 1:9fa35bcbc634 203
NaveenKumarB 1:9fa35bcbc634 204 }
NaveenKumarB 1:9fa35bcbc634 205 }
NaveenKumarB 1:9fa35bcbc634 206 }
NaveenKumarB 1:9fa35bcbc634 207