Takeuchi Kouichi
/
20160505_V14_LedMatrix
LEDマトリックス 1枚 その4 スクロール文字表示
main.cpp@0:62ea25b8c31d, 2016-05-27 (annotated)
- Committer:
- takeuchi
- Date:
- Fri May 27 06:57:55 2016 +0000
- Revision:
- 0:62ea25b8c31d
LED???????1-4
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
takeuchi | 0:62ea25b8c31d | 1 | // LedMatrix 1mai |
takeuchi | 0:62ea25b8c31d | 2 | |
takeuchi | 0:62ea25b8c31d | 3 | #include "mbed.h" |
takeuchi | 0:62ea25b8c31d | 4 | |
takeuchi | 0:62ea25b8c31d | 5 | DigitalOut led(dp28); |
takeuchi | 0:62ea25b8c31d | 6 | |
takeuchi | 0:62ea25b8c31d | 7 | // spi(mosi,miso,sck) |
takeuchi | 0:62ea25b8c31d | 8 | SPI max72_spi(dp2, NC, dp6); |
takeuchi | 0:62ea25b8c31d | 9 | DigitalOut load(dp14);//spi load |
takeuchi | 0:62ea25b8c31d | 10 | |
takeuchi | 0:62ea25b8c31d | 11 | // CPU MT7219 |
takeuchi | 0:62ea25b8c31d | 12 | // dp1 mosi(Master In Salve Out) => DIN |
takeuchi | 0:62ea25b8c31d | 13 | // dp2 miso(Master OutSlave) => nc |
takeuchi | 0:62ea25b8c31d | 14 | // dp6 sck (Serial Clock) => clk |
takeuchi | 0:62ea25b8c31d | 15 | // dp14 =>(Slave Select) load |
takeuchi | 0:62ea25b8c31d | 16 | |
takeuchi | 0:62ea25b8c31d | 17 | int maxInUse = 1; //change this variable to set how many MAX7219's you'll use |
takeuchi | 0:62ea25b8c31d | 18 | |
takeuchi | 0:62ea25b8c31d | 19 | // define max7219 registers |
takeuchi | 0:62ea25b8c31d | 20 | #define max7219_reg_noop 0x00 |
takeuchi | 0:62ea25b8c31d | 21 | #define max7219_reg_digit0 0x01 |
takeuchi | 0:62ea25b8c31d | 22 | #define max7219_reg_digit1 0x02 |
takeuchi | 0:62ea25b8c31d | 23 | #define max7219_reg_digit2 0x03 |
takeuchi | 0:62ea25b8c31d | 24 | #define max7219_reg_digit3 0x04 |
takeuchi | 0:62ea25b8c31d | 25 | #define max7219_reg_digit4 0x05 |
takeuchi | 0:62ea25b8c31d | 26 | #define max7219_reg_digit5 0x06 |
takeuchi | 0:62ea25b8c31d | 27 | #define max7219_reg_digit6 0x07 |
takeuchi | 0:62ea25b8c31d | 28 | #define max7219_reg_digit7 0x08 |
takeuchi | 0:62ea25b8c31d | 29 | #define max7219_reg_decodeMode 0x09 |
takeuchi | 0:62ea25b8c31d | 30 | #define max7219_reg_intensity 0x0a |
takeuchi | 0:62ea25b8c31d | 31 | #define max7219_reg_scanLimit 0x0b |
takeuchi | 0:62ea25b8c31d | 32 | #define max7219_reg_shutdown 0x0c |
takeuchi | 0:62ea25b8c31d | 33 | #define max7219_reg_displayTest 0x0f |
takeuchi | 0:62ea25b8c31d | 34 | |
takeuchi | 0:62ea25b8c31d | 35 | #define LOW 0 |
takeuchi | 0:62ea25b8c31d | 36 | #define HIGH 1 |
takeuchi | 0:62ea25b8c31d | 37 | #define MHZ 1000000 |
takeuchi | 0:62ea25b8c31d | 38 | #define ON 1 |
takeuchi | 0:62ea25b8c31d | 39 | #define OFF 0 |
takeuchi | 0:62ea25b8c31d | 40 | |
takeuchi | 0:62ea25b8c31d | 41 | void maxSingle( int reg, int col) { |
takeuchi | 0:62ea25b8c31d | 42 | //maxSingle is the "easy" function to use for a |
takeuchi | 0:62ea25b8c31d | 43 | //single max7219 |
takeuchi | 0:62ea25b8c31d | 44 | load = LOW; // begin |
takeuchi | 0:62ea25b8c31d | 45 | max72_spi.write(reg); // specify register |
takeuchi | 0:62ea25b8c31d | 46 | max72_spi.write(col); // put data |
takeuchi | 0:62ea25b8c31d | 47 | load = HIGH; // make sure data is loaded (on rising edge of LOAD/CS) |
takeuchi | 0:62ea25b8c31d | 48 | } |
takeuchi | 0:62ea25b8c31d | 49 | |
takeuchi | 0:62ea25b8c31d | 50 | void maxAll (int reg, int col) { // initialize all MAX7219's in the system |
takeuchi | 0:62ea25b8c31d | 51 | load = LOW; // begin |
takeuchi | 0:62ea25b8c31d | 52 | for ( int c=1; c<= maxInUse; c++) { |
takeuchi | 0:62ea25b8c31d | 53 | max72_spi.write(reg); // specify register |
takeuchi | 0:62ea25b8c31d | 54 | max72_spi.write(col); // put data |
takeuchi | 0:62ea25b8c31d | 55 | } |
takeuchi | 0:62ea25b8c31d | 56 | load = HIGH; |
takeuchi | 0:62ea25b8c31d | 57 | } |
takeuchi | 0:62ea25b8c31d | 58 | |
takeuchi | 0:62ea25b8c31d | 59 | void maxOne(int maxNr, int reg, int col) { |
takeuchi | 0:62ea25b8c31d | 60 | //maxOne is for adressing different MAX7219's, |
takeuchi | 0:62ea25b8c31d | 61 | //while having a couple of them cascaded |
takeuchi | 0:62ea25b8c31d | 62 | int c = 0; |
takeuchi | 0:62ea25b8c31d | 63 | load = LOW; |
takeuchi | 0:62ea25b8c31d | 64 | |
takeuchi | 0:62ea25b8c31d | 65 | for ( c = maxInUse; c >= maxNr; c--) { |
takeuchi | 0:62ea25b8c31d | 66 | max72_spi.write(0); // no-op |
takeuchi | 0:62ea25b8c31d | 67 | max72_spi.write(0); // no-op |
takeuchi | 0:62ea25b8c31d | 68 | } |
takeuchi | 0:62ea25b8c31d | 69 | |
takeuchi | 0:62ea25b8c31d | 70 | max72_spi.write(reg); // specify register |
takeuchi | 0:62ea25b8c31d | 71 | max72_spi.write(col); // put data |
takeuchi | 0:62ea25b8c31d | 72 | |
takeuchi | 0:62ea25b8c31d | 73 | for ( c=maxNr-1; c >= 1; c--) { |
takeuchi | 0:62ea25b8c31d | 74 | max72_spi.write(0); // no-op |
takeuchi | 0:62ea25b8c31d | 75 | max72_spi.write(0); // no-op |
takeuchi | 0:62ea25b8c31d | 76 | } |
takeuchi | 0:62ea25b8c31d | 77 | load = HIGH; |
takeuchi | 0:62ea25b8c31d | 78 | } |
takeuchi | 0:62ea25b8c31d | 79 | |
takeuchi | 0:62ea25b8c31d | 80 | void setup () { |
takeuchi | 0:62ea25b8c31d | 81 | // initiation of the max 7219 |
takeuchi | 0:62ea25b8c31d | 82 | // SPI setup: 8 bits, mode 0 |
takeuchi | 0:62ea25b8c31d | 83 | max72_spi.format(8, 0); |
takeuchi | 0:62ea25b8c31d | 84 | |
takeuchi | 0:62ea25b8c31d | 85 | // going by the datasheet, min clk is 100ns so theoretically 10MHz should work... |
takeuchi | 0:62ea25b8c31d | 86 | // max72_spi.frequency(10*MHZ); |
takeuchi | 0:62ea25b8c31d | 87 | |
takeuchi | 0:62ea25b8c31d | 88 | maxAll(max7219_reg_scanLimit, 0x07); |
takeuchi | 0:62ea25b8c31d | 89 | maxAll(max7219_reg_decodeMode, 0x00); // using an led matrix (not digits) |
takeuchi | 0:62ea25b8c31d | 90 | maxAll(max7219_reg_shutdown, 0x01); // not in shutdown mode |
takeuchi | 0:62ea25b8c31d | 91 | maxAll(max7219_reg_displayTest, 0x00); // no display test |
takeuchi | 0:62ea25b8c31d | 92 | for (int e=1; e<=8; e++) { // empty registers, turn all LEDs off |
takeuchi | 0:62ea25b8c31d | 93 | maxAll(e,0); |
takeuchi | 0:62ea25b8c31d | 94 | } |
takeuchi | 0:62ea25b8c31d | 95 | maxAll(max7219_reg_intensity, 0x0f & 0x0f); // the first 0x0f is the value you can set |
takeuchi | 0:62ea25b8c31d | 96 | // range: 0x00 to 0x0f |
takeuchi | 0:62ea25b8c31d | 97 | } |
takeuchi | 0:62ea25b8c31d | 98 | |
takeuchi | 0:62ea25b8c31d | 99 | void led_flash(){ |
takeuchi | 0:62ea25b8c31d | 100 | int i; |
takeuchi | 0:62ea25b8c31d | 101 | for(i=0;i<3;i++){ |
takeuchi | 0:62ea25b8c31d | 102 | led=ON; |
takeuchi | 0:62ea25b8c31d | 103 | wait(0.1); |
takeuchi | 0:62ea25b8c31d | 104 | led=OFF; |
takeuchi | 0:62ea25b8c31d | 105 | wait(0.1); |
takeuchi | 0:62ea25b8c31d | 106 | } |
takeuchi | 0:62ea25b8c31d | 107 | } |
takeuchi | 0:62ea25b8c31d | 108 | |
takeuchi | 0:62ea25b8c31d | 109 | int main(void) { |
takeuchi | 0:62ea25b8c31d | 110 | |
takeuchi | 0:62ea25b8c31d | 111 | const uint64_t moji_font[] = {// bold font , kagami moji font |
takeuchi | 0:62ea25b8c31d | 112 | 0x3c66666e76663c00,//0~9 |
takeuchi | 0:62ea25b8c31d | 113 | 0x7e1818181c181800, |
takeuchi | 0:62ea25b8c31d | 114 | 0x7e060c3060663c00, |
takeuchi | 0:62ea25b8c31d | 115 | 0x3c66603860663c00, |
takeuchi | 0:62ea25b8c31d | 116 | 0x30307e3234383000, |
takeuchi | 0:62ea25b8c31d | 117 | 0x3c6660603e067e00, |
takeuchi | 0:62ea25b8c31d | 118 | 0x3c66663e06663c00, |
takeuchi | 0:62ea25b8c31d | 119 | 0x1818183030667e00, |
takeuchi | 0:62ea25b8c31d | 120 | 0x3c66663c66663c00, |
takeuchi | 0:62ea25b8c31d | 121 | 0x3c66607c66663c00, |
takeuchi | 0:62ea25b8c31d | 122 | }; |
takeuchi | 0:62ea25b8c31d | 123 | |
takeuchi | 0:62ea25b8c31d | 124 | int i,j,k; |
takeuchi | 0:62ea25b8c31d | 125 | uint8_t bitsum[1][8],bit1gyou,bitline[80]; |
takeuchi | 0:62ea25b8c31d | 126 | uint64_t moji1; |
takeuchi | 0:62ea25b8c31d | 127 | |
takeuchi | 0:62ea25b8c31d | 128 | setup(); |
takeuchi | 0:62ea25b8c31d | 129 | led_flash(); |
takeuchi | 0:62ea25b8c31d | 130 | wait(0.1); |
takeuchi | 0:62ea25b8c31d | 131 | |
takeuchi | 0:62ea25b8c31d | 132 | while(1){ |
takeuchi | 0:62ea25b8c31d | 133 | |
takeuchi | 0:62ea25b8c31d | 134 | for(i=0;i<10;i++){ |
takeuchi | 0:62ea25b8c31d | 135 | moji1=moji_font[i];// 0~9 |
takeuchi | 0:62ea25b8c31d | 136 | for(j=0;j<8;j++){ |
takeuchi | 0:62ea25b8c31d | 137 | bitsum[i][j]=0; |
takeuchi | 0:62ea25b8c31d | 138 | } |
takeuchi | 0:62ea25b8c31d | 139 | for(j=0;j<8;j++){ |
takeuchi | 0:62ea25b8c31d | 140 | bit1gyou=moji1 & 0xff; |
takeuchi | 0:62ea25b8c31d | 141 | for(k=0;k<8;k++){// kagamimoji no font |
takeuchi | 0:62ea25b8c31d | 142 | //for(k=8;k>=1;k--){ // futuu no font |
takeuchi | 0:62ea25b8c31d | 143 | bitsum[i][k]=bitsum[i][k]+(bit1gyou & 0x01)*pow((double)2,(double)(j)); |
takeuchi | 0:62ea25b8c31d | 144 | bit1gyou=bit1gyou >> 1; |
takeuchi | 0:62ea25b8c31d | 145 | }//i |
takeuchi | 0:62ea25b8c31d | 146 | moji1=moji1 >> 8; |
takeuchi | 0:62ea25b8c31d | 147 | }//j |
takeuchi | 0:62ea25b8c31d | 148 | } |
takeuchi | 0:62ea25b8c31d | 149 | |
takeuchi | 0:62ea25b8c31d | 150 | k=0; |
takeuchi | 0:62ea25b8c31d | 151 | for(i=0;i<10;i++){// scroll data henkan |
takeuchi | 0:62ea25b8c31d | 152 | for(j=0;j<8;j++){ |
takeuchi | 0:62ea25b8c31d | 153 | bitline[k]=bitsum[i][j]; |
takeuchi | 0:62ea25b8c31d | 154 | k++; |
takeuchi | 0:62ea25b8c31d | 155 | } |
takeuchi | 0:62ea25b8c31d | 156 | } |
takeuchi | 0:62ea25b8c31d | 157 | |
takeuchi | 0:62ea25b8c31d | 158 | for(i=0;i<80-8;i++){ //scroll hyouji |
takeuchi | 0:62ea25b8c31d | 159 | maxSingle(1,bitline[i+0]); |
takeuchi | 0:62ea25b8c31d | 160 | maxSingle(2,bitline[i+1]); |
takeuchi | 0:62ea25b8c31d | 161 | maxSingle(3,bitline[i+2]); |
takeuchi | 0:62ea25b8c31d | 162 | maxSingle(4,bitline[i+3]); |
takeuchi | 0:62ea25b8c31d | 163 | maxSingle(5,bitline[i+4]); |
takeuchi | 0:62ea25b8c31d | 164 | maxSingle(6,bitline[i+5]); |
takeuchi | 0:62ea25b8c31d | 165 | maxSingle(7,bitline[i+6]); |
takeuchi | 0:62ea25b8c31d | 166 | maxSingle(8,bitline[i+7]); |
takeuchi | 0:62ea25b8c31d | 167 | wait(0.1); |
takeuchi | 0:62ea25b8c31d | 168 | } |
takeuchi | 0:62ea25b8c31d | 169 | |
takeuchi | 0:62ea25b8c31d | 170 | }//while |
takeuchi | 0:62ea25b8c31d | 171 | }//main |
takeuchi | 0:62ea25b8c31d | 172 | |
takeuchi | 0:62ea25b8c31d | 173 |