Naveen Kumar B
led matrix based on max7219 connected to nucleo-l476rg
Diff: main.cpp
- Revision:
- 1:9fa35bcbc634
- Parent:
- 0:f11d86c27d4c
--- a/main.cpp Tue Jan 21 13:46:13 2020 +0000
+++ b/main.cpp Wed Oct 07 11:23:59 2020 +0000
@@ -1,9 +1,64 @@
#include "max7219.h"
-Max7219 max7219(D11, NC, D13, D10);
+void printNumber(uint16_t number, uint8_t noOfDigits);
+
+Max7219 max7219(D11, NC, D13, D10);//D11->MOSI - 15(Nucleo), MISO, D13->CLK ->11(Nucleo), D10->CS -17(Nucleo)
+uint8_t numberOfDevices = 4;
+
//DigitalOut my_sck(D13);
+
+const unsigned char num1[]= {
+ 0x00,0x00,0x00,0x42,0x7F,0x40,0x00,0x00
+}; //1
+const unsigned char num2[]= {
+ 0x00,0x46,0x61,0x51,0x49,0x46,0x00,0x00
+}; //2
+const unsigned char num3[]= {
+ 0x00,0x22,0x41,0x49,0x49,0x36,0x00,0x00
+}; //3
+const unsigned char num4[]= {
+ 0x00,0x0C,0x0A,0x09,0x7F,0x08,0x00,0x00
+}; //4
+const unsigned char num5[]= {
+ 0x00,0x00,0x4F,0x49,0x49,0x31,0x00,0x00
+}; //5
+const unsigned char num6[]= {
+ 0x00,0x00,0x3C,0x4A,0x49,0x30,0x00,0x00
+}; //6
+const unsigned char num7[]= {
+ 0x00,0x00,0x61,0x11,0x09,0x07,0x00,0x00
+}; //7
+const unsigned char num8[]= {
+ 0x00,0x00,0x36,0x49,0x49,0x36,0x00,0x00
+}; //8
+const unsigned char num9[]= {
+ 0x00,0x00,0x06,0x49,0x49,0x3E,0x00,0x00
+}; //9
+const unsigned char num0[]= {
+ 0x00,0x00,0x3E,0x41,0x41,0x3E,0x00,0x00
+}; //0
+
+uint8_t smiley[] = {0x3c, 0x42, 0x81,0xA5, 0x81, 0xA5, 0x5A, 0x3C};
+uint8_t numberFont[10][8] = {
+ 0x18,0x24,0x24,0x24,0x24,0x24,0x18,0x00,//0
+ 0x08,0x18,0x08,0x08,0x08,0x08,0x1C,0x00,//1
+ 0x38,0x44,0x44,0x08,0x10,0x20,0x7C,0x00,//2
+ 0x38,0x44,0x04,0x18,0x04,0x44,0x38,0x00,//3
+ 0x18,0x28,0x48,0x7C,0x08,0x08,0x08,0x00,//4
+ 0x3C,0x20,0x20,0x38,0x04,0x04,0x38,0x00,//5
+ 0x08,0x10,0x20,0x38,0x24,0x24,0x18,0x00,//6
+
+ 0x3C,0x04,0x04,0x08,0x10,0x20,0x20,0x00,//7
+ 0x18,0x24,0x24,0x18,0x24,0x24,0x18,0x00,//8
+ 0x18,0x24,0x24,0x1C,0x04,0x04,0x18,0x00,//9
+ };
+
int main()
{
+ uint8_t col = 0;
+ uint8_t row = 0;
+
+ max7219.set_num_devices(numberOfDevices);
max7219_configuration_t cfg = {
.device_number = 1,
@@ -11,23 +66,142 @@
.intensity = Max7219::MAX7219_INTENSITY_3,
.scan_limit = Max7219::MAX7219_SCAN_8
};
-
- max7219.init_device(cfg);
- max7219.enable_device(1);
-
-
+ wait_ms(100);
+ max7219.init_display(cfg);
+ wait_ms(100);
+// max7219.enable_device(2);
+// max7219.enable_device(2);
+ max7219.enable_display();
+// max7219.set_display_test();
+ wait_ms(100);
- max7219.write_digit(1,1,0b00111100);
- max7219.write_digit(1,2,0b01000010);
- max7219.write_digit(1,3,0b10000001);
- max7219.write_digit(1,4,0b10100101);
- max7219.write_digit(1,5,0b10000001);
- max7219.write_digit(1,6,0b10100101);
- max7219.write_digit(1,7,0b01011010);
- max7219.write_digit(1,8,0b00111100);
+// max7219.write_digit(1,1,0b00111100);
+// max7219.write_digit(1,2,0b01000010);
+// max7219.write_digit(1,3,0b10000001);
+// max7219.write_digit(1,4,0b10100101);
+// max7219.write_digit(1,5,0b10000001);
+// max7219.write_digit(1,6,0b10100101);
+// max7219.write_digit(1,7,0b01011010);
+// max7219.write_digit(1,8,0b00111100);
+// max7219.write_digit(2,1,0b00111100);
+// max7219.write_digit(2,2,0b01000010);
+// max7219.write_digit(2,3,0b10000001);
+// max7219.write_digit(2,4,0b10100101);
+// max7219.write_digit(2,5,0b10000001);
+// max7219.write_digit(2,6,0b10100101);
+// max7219.write_digit(2,7,0b01011010);
+// max7219.write_digit(2,8,0b00111100);
+
+ max7219.write_digit(3,1,0b00111100);
+ max7219.write_digit(3,2,0b01000010);
+ max7219.write_digit(3,3,0b10000001);
+ max7219.write_digit(3,4,0b10100101);
+ max7219.write_digit(3,5,0b10000001);
+ max7219.write_digit(3,6,0b10100101);
+ max7219.write_digit(3,7,0b01011010);
+ max7219.write_digit(3,8,0b00111100);
+ wait_ms(2000);
+
+ max7219.device_all_on(1);
+
+ wait_ms(2000);
+
+ max7219.device_all_off(1);
+ wait_ms(2000);
+ uint8_t number;
+
+ max7219.display_all_off();
+ uint8_t noOfDigits =2;
+
while (1) {
+// number = 0;
+// for(col = 1; col <= numberOfDevices; col++)
+// {
+// for(row = 1; row < 9; row++)
+// {
+// max7219.write_digit(col,row,numberFont[number][row-1]);
+// }
+// number++;
+// wait_ms(2000);
+// max7219.device_all_off(col);
+// }
+ printNumber(12, noOfDigits);
+ wait_ms(1000);
+ printNumber(345, 3);
+ wait_ms(1000);
+ printNumber(6789, 4);
+ wait_ms(1000);
+ printNumber(78, noOfDigits);
+ wait_ms(1000);
+ printNumber(90, noOfDigits);
+ wait_ms(1000);
}
-}
\ No newline at end of file
+}
+
+void printNumber(uint16_t number, uint8_t noOfDigits)
+{
+ uint8_t right, rMiddle, lMiddle, left, col, row;
+ max7219.display_all_off();
+ if(noOfDigits == 2)
+ {
+ right = number%10;
+ rMiddle = (uint8_t)(number / 10);
+ }
+ else if(noOfDigits == 3)
+ {
+ right = number%10;
+ rMiddle = (uint8_t)((number%100)/10);
+ lMiddle = (uint8_t)(number/100);
+ }
+ else if(noOfDigits == 4)
+ {
+ right = number%10;
+ rMiddle = (uint8_t)((number%100)/10);
+ lMiddle = (uint8_t)((number%1000)/100);
+ left = (uint8_t)(number/1000);
+ }
+ else if(noOfDigits == 1)
+ {
+ right = number;
+ }
+
+ for(col = 1; col <= noOfDigits; col++)
+ {
+ if(col == 1)
+ {
+ for(row = 1; row < 9; row++)
+ {
+ max7219.write_digit(col,row,numberFont[right][row-1]);
+ }
+
+ }
+ if(col == 2)
+ {
+ for(row = 1; row < 9; row++)
+ {
+ max7219.write_digit(col,row,numberFont[rMiddle][row-1]);
+ }
+
+ }
+ if(col == 3)
+ {
+ for(row = 1; row < 9; row++)
+ {
+ max7219.write_digit(col,row,numberFont[lMiddle][row-1]);
+ }
+
+ }
+ if(col == 4)
+ {
+ for(row = 1; row < 9; row++)
+ {
+ max7219.write_digit(col,row,numberFont[left][row-1]);
+ }
+
+ }
+ }
+}
+