5X5点阵键盘+1602液晶显示做的计算器+时钟（AVR单片机）

#include "cal_stack.h" #include "cal_number.h" #include "lcd.h" #include "cal_EU.h" #include "math.h" #include <stdbool.h> #define TRUE 1 #define FALSE 0 //bool operation_rank(int t); extern float num_temp; extern bool cal_status; bool do_one_operation(int t); bool factorial(float *f); bool do_special_operation(char t); static int operation_rank(int num){ switch(num){ case add_am: case del_am: return 1; case mul_am: case div_am: return 2; case power_am: //case roots_am: return 3; case equ_am: return 0; default:return 0;//take other num as equ_am } } bool operation_work(char t){ char oper_num; if(button_type(t)==SPECIAL_BTN){ do_special_operation(t); } else{ oper_num = get_oper_top();// if(cal_status == 1 && t!= equ_am){ pop_oper(); pop_data(); } if(t!= equ_am){ for(;operation_rank(oper_num) >= operation_rank(t);oper_num = get_oper_top()){ if(!do_one_operation(oper_num)) return FALSE; pop_oper(); } push_oper(t); //cal_status = 1; } else{ for(;oper_num !=equ_am; oper_num = get_oper_top()){ if(!do_one_operation(oper_num)) return FALSE; pop_oper(); } cal_reset(); } } //num_temp=get_data_top();//get data stack's top value return TRUE; } bool do_one_operation(int t){ float left,right; right=pop_data(); left=pop_data(); switch(t){ case add_am+SECOND_FUN_GAP:// case add_am: num_temp=(left+right); push_data(num_temp); break; case del_am+SECOND_FUN_GAP:// case del_am: num_temp=(left-right); push_data(num_temp); break; case mul_am+SECOND_FUN_GAP:// case mul_am: num_temp=(left*right); push_data(num_temp); break; case div_am+SECOND_FUN_GAP:// case div_am: if(right == 0) return FALSE; else{ num_temp=(left/right); push_data(num_temp); } break; case power_am+SECOND_FUN_GAP://roots_am num_temp=pow(left,1/right); push_data(num_temp); break; case power_am: num_temp=pow(left,right); push_data(num_temp); break; } //cal_status = 1; return TRUE; } bool do_special_operation(char num){ switch(num){// '//'second choice case sin_am+SECOND_FUN_GAP: ////sin-1 num_temp = asin(num_temp)/PI*180; break; case sin_am: //sin num_temp = sin(num_temp/180*PI); break; case cos_am+SECOND_FUN_GAP: ////cos-1 num_temp = acos(num_temp)/PI*180; break; case cos_am: //cos num_temp = cos(num_temp/180*PI); break; case tan_am+SECOND_FUN_GAP: ////tan-1 num_temp = atan(num_temp)/PI*180; break; case tan_am: //tan num_temp = tan(num_temp/180*PI); break; case square_am+SECOND_FUN_GAP: ////sqrt if(num_temp<0) return FALSE; else num_temp = sqrt(num_temp); break; case square_am: //square num_temp *= num_temp; break; case neg_am+SECOND_FUN_GAP: //// case neg_am: //negtive num_temp = -num_temp; break; case factorial_am+SECOND_FUN_GAP: //// case factorial_am: //factorial if(!factorial(&num_temp)) return FALSE; break; case start_am+SECOND_FUN_GAP: //// case start_am: //start cal_reset(); num_temp=0; break; } //cal_status = 0; // change cal_status return TRUE; } bool factorial(float *f){ float ld;int c; ld=(long int)(*f); if(ld-*f !=0 || *f<0 || *f>256) return FALSE; ld=1; for(c=1;c<=*f;++c){ ld *= c; } *f=ld; return TRUE; }