199 lines
4.8 KiB
C
199 lines
4.8 KiB
C
#include "main.h"
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/* LED显示 */
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uchar ucLed[8] = {0, 0, 0, 0, 0, 0, 0, 0};
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/* 数码管显示 */
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uchar Seg_Slow_Down; // 数码管减速
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uchar Seg_Buf[8] = {10, 10, 10, 10, 10, 10, 10, 10}; // 数码管显示的值
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uchar Seg_Pos; // 数码管指示
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uchar Seg_Point[8] = {0, 0, 0, 0, 0, 0, 0, 0}; // 某位是否显示小数点
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/* 键盘方面 */
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uchar Key_Slow_Down;
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/* 显示 */
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uchar Seg_show_mode; // 0 数据显示 1 参数设置
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/* 数据 */
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uchar T_value; // 温度测量
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uchar T_para_max = 30, T_para_min = 20; // 温度参数
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uchar T_para_max_set, T_para_min_set; // 温度参数设置
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/* 判断 */
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bit para_mode; // 0 选择温度下限 1选择温度上限
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bit error_data_set; // 错误数据设置
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#define N 10
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uint data_array[N]; // 窗口大小
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uint sum_temp; // 总和
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uchar index_temp; // 计数
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uchar arr_count; // 数组数据数量
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uint filter(uint new_data)
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{
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sum_temp -= data_array[index_temp];
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data_array[index_temp] = new_data;
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sum_temp += data_array[index_temp];
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index_temp = (++index_temp) % N; // 保证index_temp在0~N-1之间轮转
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arr_count = (++arr_count == N + 1) ? N : arr_count; // 锁定数组中的元素个数
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return sum_temp / arr_count;
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}
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/* 键盘处理函数 */
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void Key_Proc()
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{
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static uchar Key_Val, Key_Down, Key_Up, Key_Old;
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if (Key_Slow_Down)
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return;
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Key_Slow_Down = 1;
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Key_Val = Key_Read();
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Key_Down = Key_Val & (Key_Old ^ Key_Val);
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Key_Up = ~Key_Val & (Key_Old ^ Key_Val);
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Key_Old = Key_Val;
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if (Key_Down == 4)
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{
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Seg_show_mode = (++Seg_show_mode) % 2;
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para_mode = 0;
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if (Seg_show_mode == 1)
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{
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// 将数据值给设置值
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T_para_max_set = T_para_max;
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T_para_min_set = T_para_min;
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}
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if (Seg_show_mode == 0)
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{
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// 进行参数合理判断
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if (T_para_max_set >= T_para_min_set)
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{
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error_data_set = 0;
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T_para_max = T_para_max_set;
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T_para_min = T_para_min_set;
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}
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else
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{
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error_data_set = 1;
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}
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}
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}
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if (Key_Down == 5)
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para_mode ^= 1;
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if (Seg_show_mode == 1)
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{
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if (para_mode == 0)
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{
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// 设置温度下限
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if (Key_Down == 6)
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T_para_min_set = (++T_para_min_set) % 100;
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if (Key_Down == 7)
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T_para_min_set = (T_para_min_set == 0) ? 99 : T_para_min_set - 1;
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}
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else
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{
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// 设置温度上限
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if (Key_Down == 6)
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T_para_max_set = (++T_para_max_set) % 100;
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if (Key_Down == 7)
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T_para_max_set = (T_para_max_set == 0) ? 99 : T_para_max_set - 1;
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}
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}
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}
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/* 数码管处理函数 */
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void Seg_Proc()
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{
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if (Seg_Slow_Down)
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return;
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Seg_Slow_Down = 1;
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T_value = filter(rd_temperature());
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if (T_value > T_para_max)
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Da_Write(4 * 51);
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else if (T_value < T_para_min)
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Da_Write(2 * 51);
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else
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Da_Write(3 * 51);
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switch (Seg_show_mode)
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{
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case 0:
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/* 数据显示 */
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Seg_Buf[0] = 11; // C
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memset(Seg_Buf + 1, 10, 5);
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Seg_Buf[6] = T_value / 10 % 10;
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Seg_Buf[7] = T_value % 10;
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break;
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case 1:
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/* 参数设置 */
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Seg_Buf[0] = 12; // P
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Seg_Buf[1] = Seg_Buf[2] = 10;
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Seg_Buf[3] = T_para_max_set / 10 % 10;
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Seg_Buf[4] = T_para_max_set % 10;
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Seg_Buf[5] = 10;
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Seg_Buf[6] = T_para_min_set / 10 % 10;
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Seg_Buf[7] = T_para_min_set % 10;
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break;
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}
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}
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/* LED处理函数 */
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void Led_Proc()
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{
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ucLed[0] = (T_value > T_para_max);
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ucLed[1] = (T_value < T_para_min);
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ucLed[2] = (T_value < T_para_max && T_value > T_para_min);
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ucLed[3] = error_data_set;
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}
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/* 定时器0中断初始化 */
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void Timer0_Init(void) // 1毫秒@12.000MHz
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{
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AUXR &= 0x7F; // 定时器时钟12T模式
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TMOD &= 0xF0; // 设置定时器模式
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TL0 = 0x18; // 设置定时初始值
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TH0 = 0xFC; // 设置定时初始值
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TF0 = 0; // 清除TF0标志
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TR0 = 1; // 定时器0开始计时
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ET0 = 1;
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EA = 1;
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}
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/* 定时器0中断函数 */
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void Timer0_ISR(void) interrupt 1
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{
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if (++Key_Slow_Down == 10)
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Key_Slow_Down = 0;
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if (++Seg_Slow_Down == 500)
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Seg_Slow_Down = 0;
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if (++Seg_Pos == 8)
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Seg_Pos = 0;
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Seg_Disp(Seg_Pos, Seg_Buf[Seg_Pos], Seg_Point[Seg_Pos]);
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Led_Disp(Seg_Pos, ucLed[Seg_Pos]);
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}
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void Delay750ms(void) //@12.000MHz
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{
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unsigned char data i, j, k;
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_nop_();
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_nop_();
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i = 35;
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j = 51;
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k = 182;
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do
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{
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do
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{
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while (--k)
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;
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} while (--j);
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} while (--i);
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}
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void main()
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{
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System_Init();
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Timer0_Init();
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rd_temperature();
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Delay750ms();
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while (1)
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{
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Key_Proc();
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Seg_Proc();
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Led_Proc();
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}
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} |