第十二届蓝桥杯单片机程序（完整工程文件）

#include "main.h" uchar LED[] = {0,0,0,0,0,0,0,0}; uchar SMG[] = {16,16,16,16,16,16,16,16}; uchar dot[] = {0,0,0,0,0,0,0,0}; uchar key; uint temp = 0; uchar da_num = 0; uchar temp_set = 25; uint V_dac = 0; uchar display_state; uchar mode = 0; void da_read() { da_num = pcf8591_read(0x40); SMG[1] = da_num%1000/100; SMG[2] = da_num%100/10; SMG[3] = da_num%10; } void data_pro() { if(display_state != 1) { if(mode == 0) { if(temp*0.01 < temp_set) { pcf8591_write(0x40,0x00); V_dac = 0; } else { pcf8591_write(0x40,0xff); V_dac = 500; } } else { if(temp*0.01 < 20) { pcf8591_write(0x40,0x33); V_dac = 100; } else if(temp*0.01 > 40) { pcf8591_write(0x40,0xcc); V_dac = 400; } else { V_dac = (int)((3/20.0*temp*0.01 - 2.0)*100); pcf8591_write(0x40,V_dac*0.01*51); } } } } void temp_display() { temp = ds18b20_read(2); SMG[0] = 12; SMG[1] = 16; SMG[2] = 16; SMG[3] = 16; SMG[4] = temp/1000; SMG[5] = temp%1000/100; SMG[6] = temp%100/10; SMG[7] = temp%10; dot[5] = 1; da_read(); } void parameter_display() { SMG[0] = 18; SMG[1] = 16; SMG[2] = 16; SMG[3] = 16; SMG[4] = 16; SMG[5] = 16; SMG[6] = temp_set/10; SMG[7] = temp_set%10; dot[5] = 0; da_read(); } void dac_display() { SMG[0] = 10; SMG[1] = 16; SMG[2] = 16; SMG[3] = 16; SMG[4] = 16; SMG[5] = V_dac/100; SMG[6] = V_dac%100/10; SMG[7] = V_dac%10; dot[5] = 1; da_read(); } void led_pro() { (mode == 0)?(LED[0] = 1):(LED[0] = 0); (display_state == 0)?(LED[1] = 1):(LED[1] = 0); (display_state == 1)?(LED[2] = 1):(LED[2] = 0); (display_state == 2)?(LED[3] = 1):(LED[3] = 0); led(LED); } void smg_pro() { switch(display_state) { case 0:temp_display(); break; case 1:parameter_display(); break; case 2:dac_display(); break; } display(SMG,dot); } void key_pro() { key = key_scan(); switch(key) { case 1:mode = (++mode)%2; break; case 2: { if(display_state == 1) { temp_set++; if(temp_set == 100) temp_set = 0; } } break; case 3:display_state = (++display_state)%3; break; case 4: { if(display_state == 1) { temp_set--; if(temp_set == 255) temp_set = 99; } } break; } } void main() { init_all(); temp = ds18b20_read(2); delayus(750); temp = 0; while(1) { led_pro(); smg_pro(); key_pro(); data_pro(); } }