166 lines
3.7 KiB
C
166 lines
3.7 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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/* 时间方面 */
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uint time_all_1s;
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uchar time_200ms;
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/* 数据 */
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uchar Dis_value;
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uchar Dis_para = 30;
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/* 显示 */
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uchar Seg_show_mode; // 0 距离显示 1 参数显示
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/* 判断 */
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bit Send_data_flag;
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bit Wring_flag;
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bit Led_blink;
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/* 数据处理函数 */
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void Data_Proc()
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{
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if (time_all_1s % 100 == 0)
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{
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// 超声波读取
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Dis_value = Ut_Wave_Data();
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if (Dis_value > Dis_para)
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Wring_flag = 1;
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else
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Wring_flag = 0;
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}
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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 (time_all_1s % 10)
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return;
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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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Seg_show_mode = (++Seg_show_mode) % 2;
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if (Seg_show_mode == 0)
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if (Key_Down == 8)
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Dis_para = Dis_value;
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if (Seg_show_mode == 1)
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{
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if (Key_Down == 12)
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Dis_para = (Dis_para >= 245) ? 255
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: Dis_para + 10;
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else if (Key_Down == 16)
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Dis_para = (Dis_para <= 10) ? 0
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: Dis_para - 10;
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}
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if (Key_Down == 9)
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Send_data_flag = 1;
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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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uchar i;
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if (time_all_1s % 100)
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return;
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Seg_Buf[0] = 11; // U
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Seg_Buf[1] = Seg_show_mode + 1;
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Seg_Buf[2] = Seg_Buf[3] = Seg_Buf[4] = 10;
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Seg_Buf[5] = (Seg_show_mode == 0) ? Dis_value / 100 % 10
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: Dis_para / 100 % 10;
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Seg_Buf[6] = (Seg_show_mode == 0) ? Dis_value / 10 % 10
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: Dis_para / 10 % 10;
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Seg_Buf[7] = (Seg_show_mode == 0) ? Dis_value % 10
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: Dis_para % 10;
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i = 5;
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while (i < 7)
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{
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if (Seg_Buf[i] == 0 && Seg_Buf[i - 1] == 10)
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Seg_Buf[i] = 10;
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else
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break;
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i++;
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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] = (Seg_show_mode == 0);
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ucLed[1] = (Seg_show_mode == 1);
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ucLed[2] = Led_blink;
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}
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/* 串口处理函数 */
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void Uart_Proc()
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{
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if (time_all_1s % 200)
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return;
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if (Send_data_flag)
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{
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Send_data_flag = 0;
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printf("Distance:%bucm", Dis_value);
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}
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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 (++time_all_1s == 1000)
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time_all_1s = 0;
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if (++Seg_Pos == 8)
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Seg_Pos = 0;
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if (Wring_flag)
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{
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if (++time_200ms == 200)
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{
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time_200ms = 0;
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Led_blink ^= 1;
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}
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}
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else
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{
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time_200ms = 0;
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Led_blink = 0;
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}
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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 Uart1_Isr(void) interrupt 4
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{
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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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Uart1_Init();
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while (1)
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{
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Key_Proc();
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Data_Proc();
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Seg_Proc();
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Uart_Proc();
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Led_Proc();
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}
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} |