keniti akiba
/
i2c_lcd_adc_010_1
stm32l010f4p6 adc 1
main.cpp@0:452bfcde2612, 2021-04-27 (annotated)
- Committer:
- caa45040
- Date:
- Tue Apr 27 11:13:23 2021 +0000
- Revision:
- 0:452bfcde2612
stm32l101f4p6 adc i2c_lcd 1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
caa45040 | 0:452bfcde2612 | 1 | #include "mbed.h" |
caa45040 | 0:452bfcde2612 | 2 | |
caa45040 | 0:452bfcde2612 | 3 | //10の割り算 0から1028までは、正しい。主に0から999 |
caa45040 | 0:452bfcde2612 | 4 | #define DVI10(n) ((n*205)>>11) |
caa45040 | 0:452bfcde2612 | 5 | |
caa45040 | 0:452bfcde2612 | 6 | AnalogIn adc_vbat(A3); //PA_4 |
caa45040 | 0:452bfcde2612 | 7 | |
caa45040 | 0:452bfcde2612 | 8 | #define ADDR (0xD0) // address |
caa45040 | 0:452bfcde2612 | 9 | #define ADDR_LCD (0x7C) // address |
caa45040 | 0:452bfcde2612 | 10 | |
caa45040 | 0:452bfcde2612 | 11 | //I2C i2c(I2C_SDA, I2C_SCL); //767 |
caa45040 | 0:452bfcde2612 | 12 | //I2C i2c(dp5, dp27); //1114 |
caa45040 | 0:452bfcde2612 | 13 | I2C i2c(PA_10, PA_9); //010 |
caa45040 | 0:452bfcde2612 | 14 | |
caa45040 | 0:452bfcde2612 | 15 | char data_read[8]; //i2cバッファー |
caa45040 | 0:452bfcde2612 | 16 | |
caa45040 | 0:452bfcde2612 | 17 | char INIT_com[]={0x0,0x38, |
caa45040 | 0:452bfcde2612 | 18 | 0x0,0x39, |
caa45040 | 0:452bfcde2612 | 19 | 0x0,0x4, |
caa45040 | 0:452bfcde2612 | 20 | 0x0,0x14, |
caa45040 | 0:452bfcde2612 | 21 | 0x0,0x70, |
caa45040 | 0:452bfcde2612 | 22 | 0x0,0x56, |
caa45040 | 0:452bfcde2612 | 23 | 0x0,0x6C, |
caa45040 | 0:452bfcde2612 | 24 | 0x0,0x38, |
caa45040 | 0:452bfcde2612 | 25 | 0x0,0xC, |
caa45040 | 0:452bfcde2612 | 26 | 0x0,0x1, |
caa45040 | 0:452bfcde2612 | 27 | 0x40,0x41}; |
caa45040 | 0:452bfcde2612 | 28 | |
caa45040 | 0:452bfcde2612 | 29 | char INIT_cls[]={0x0,0x1}; |
caa45040 | 0:452bfcde2612 | 30 | |
caa45040 | 0:452bfcde2612 | 31 | char ch_hex_a_b[5]; |
caa45040 | 0:452bfcde2612 | 32 | char *ch_hex_a(int l_num) |
caa45040 | 0:452bfcde2612 | 33 | { |
caa45040 | 0:452bfcde2612 | 34 | int a,b,c; |
caa45040 | 0:452bfcde2612 | 35 | |
caa45040 | 0:452bfcde2612 | 36 | b=DVI10(l_num); |
caa45040 | 0:452bfcde2612 | 37 | c=l_num-(b*10); |
caa45040 | 0:452bfcde2612 | 38 | l_num=b; |
caa45040 | 0:452bfcde2612 | 39 | a=DVI10(l_num); |
caa45040 | 0:452bfcde2612 | 40 | b=l_num-(a*10); |
caa45040 | 0:452bfcde2612 | 41 | |
caa45040 | 0:452bfcde2612 | 42 | ch_hex_a_b[0] = '@'; |
caa45040 | 0:452bfcde2612 | 43 | ch_hex_a_b[1] = '0' + a; |
caa45040 | 0:452bfcde2612 | 44 | ch_hex_a_b[2] = '0' + b; |
caa45040 | 0:452bfcde2612 | 45 | ch_hex_a_b[3] = '0' + c; |
caa45040 | 0:452bfcde2612 | 46 | ch_hex_a_b[4] = 0; |
caa45040 | 0:452bfcde2612 | 47 | |
caa45040 | 0:452bfcde2612 | 48 | return(ch_hex_a_b); |
caa45040 | 0:452bfcde2612 | 49 | } |
caa45040 | 0:452bfcde2612 | 50 | |
caa45040 | 0:452bfcde2612 | 51 | int ii; //ループカウンタ |
caa45040 | 0:452bfcde2612 | 52 | |
caa45040 | 0:452bfcde2612 | 53 | int main() |
caa45040 | 0:452bfcde2612 | 54 | { |
caa45040 | 0:452bfcde2612 | 55 | //液晶の初期化 |
caa45040 | 0:452bfcde2612 | 56 | for(ii=0;ii<11;ii++){ |
caa45040 | 0:452bfcde2612 | 57 | i2c.write(ADDR_LCD, &INIT_com[ii*2], 2);wait_ms(2); |
caa45040 | 0:452bfcde2612 | 58 | } //for |
caa45040 | 0:452bfcde2612 | 59 | |
caa45040 | 0:452bfcde2612 | 60 | // i2c.write(ADDR, "\230", 1); //16bit 15sps PGA x1 |
caa45040 | 0:452bfcde2612 | 61 | |
caa45040 | 0:452bfcde2612 | 62 | int p,s; |
caa45040 | 0:452bfcde2612 | 63 | while (1) { |
caa45040 | 0:452bfcde2612 | 64 | //液晶のクリア |
caa45040 | 0:452bfcde2612 | 65 | i2c.write(ADDR_LCD,INIT_cls,2);wait_ms(2); |
caa45040 | 0:452bfcde2612 | 66 | |
caa45040 | 0:452bfcde2612 | 67 | //adcの読み込み |
caa45040 | 0:452bfcde2612 | 68 | s = (adc_vbat.read_u16()>>4); |
caa45040 | 0:452bfcde2612 | 69 | |
caa45040 | 0:452bfcde2612 | 70 | // (4096*165)/2048=330 電圧の100倍に変換 |
caa45040 | 0:452bfcde2612 | 71 | //s = 13; |
caa45040 | 0:452bfcde2612 | 72 | p = (s*165) >> 11; |
caa45040 | 0:452bfcde2612 | 73 | |
caa45040 | 0:452bfcde2612 | 74 | // //データの読み込み |
caa45040 | 0:452bfcde2612 | 75 | // i2c.read(ADDR | 1, data_read, 2); |
caa45040 | 0:452bfcde2612 | 76 | // |
caa45040 | 0:452bfcde2612 | 77 | // s = (data_read[0] * 256 ) + data_read[1]; |
caa45040 | 0:452bfcde2612 | 78 | // //s = 32767; |
caa45040 | 0:452bfcde2612 | 79 | // //printf("-s=%d\r\n",s); //767 |
caa45040 | 0:452bfcde2612 | 80 | // //printf(" h=%d\r\n",data_read[0] * 256 ); |
caa45040 | 0:452bfcde2612 | 81 | // //printf(" l=%d\r\n",data_read[1]); |
caa45040 | 0:452bfcde2612 | 82 | // |
caa45040 | 0:452bfcde2612 | 83 | // // 32768/(163.84/2)=400 luxに変換 |
caa45040 | 0:452bfcde2612 | 84 | // p=( ((s>>5)*6) + (s>>7) ) >> 4; |
caa45040 | 0:452bfcde2612 | 85 | // //printf(" p=%d\r\n",p); //767 |
caa45040 | 0:452bfcde2612 | 86 | |
caa45040 | 0:452bfcde2612 | 87 | i2c.write(ADDR_LCD, ch_hex_a( p ) ,4); |
caa45040 | 0:452bfcde2612 | 88 | |
caa45040 | 0:452bfcde2612 | 89 | wait_ms(1000); |
caa45040 | 0:452bfcde2612 | 90 | }//while |
caa45040 | 0:452bfcde2612 | 91 | |
caa45040 | 0:452bfcde2612 | 92 | }//main |
caa45040 | 0:452bfcde2612 | 93 | |
caa45040 | 0:452bfcde2612 | 94 | void error(const char* format, ...){} |