2025-06-25 16:57:23 +08:00
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# 各种模板
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## 修改后使用
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2025-06-26 02:09:59 +08:00
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### 数码管
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2025-06-25 16:57:23 +08:00
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```c
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2025-06-26 02:32:04 +08:00
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//数码管地址常量量宏定义
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#define SEG_I2C_ADDR (0x60)
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//#define SEG_I2C_ADDR (0x70)
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#define SEG_MEM_ADDR (0x10)
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2025-06-26 02:09:59 +08:00
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//数码管初始化参数
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uint8_t Seg_Pos = 0;
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uint16_t Seg_Slow_Down = 0;
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uint8_t Seg_Point[8] = {0,0,0,0,0,0,0,0};
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uint8_t Seg_Buf[8] = {10,10,10,10,10,10,10,10};
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uint8_t Seg_Char[12] =
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2025-06-25 16:57:23 +08:00
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{
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2025-06-26 02:09:59 +08:00
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0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x00,0x40 //共阴 0-9,全灭 和 -
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//0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0xB0 //共阳 0-9,全灭 和 -
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};
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//数码管处理部分
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void Seg_Disp(uint8_t Wela, uint8_t Dula, uint8_t IsPoint)
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{
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2025-06-26 02:32:04 +08:00
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//小数点设置,需根据实际情况进行更改;以下代码适用于共阴极数码管
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2025-06-26 02:09:59 +08:00
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uint8_t seg_data = Seg_Char[Dula];
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if(IsPoint)
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2025-06-26 02:32:04 +08:00
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seg_data |= 0x80; // 设置小数点
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2025-06-26 02:09:59 +08:00
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else
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2025-06-26 02:32:04 +08:00
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seg_data &= 0x7F; // 清除小数点
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// 共阳极使用以下代码
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// if(IsPoint)
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// seg_data &= 0x7F;
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// else
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// seg_data |= 0x80;
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2025-06-26 02:09:59 +08:00
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2025-06-26 02:32:04 +08:00
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HAL_I2C_Mem_Write(&hi2c1,SEG_I2C_ADDR,SEG_MEM_ADDR+Wela,I2C_MEMADD_SIZE_8BIT,&seg_data,1,100);//用在mp157开发板中
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2025-06-26 02:09:59 +08:00
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}
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//显示修改部分 ,使用主函数调用
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void Seg_Proc()
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{
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if(Seg_Slow_Down) return;
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Seg_Slow_Down = 1;
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//熄灭就是10
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Seg_Buf[0] = changeme;
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Seg_Buf[1] = 10;
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Seg_Buf[2] = 10;
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Seg_Buf[3] = 10;
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Seg_Buf[4] = 10;
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Seg_Buf[5] = 10;
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Seg_Buf[6] = 10;
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Seg_Buf[7] = 10;
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2025-06-25 16:57:23 +08:00
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}
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2025-06-26 02:09:59 +08:00
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//定时器(1ms)中写以下代码
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if(++Seg_Slow_Down == 500) Seg_Slow_Down = 0; // 数码管处理慢速定时器
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Seg_Pos++;
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if(Seg_Pos >= 8) Seg_Pos = 0;
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Seg_Disp(Seg_Pos, Seg_Buf[Seg_Pos], Seg_Point[Seg_Pos]); // 数码管显示处理
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```
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### 按键扫描及消抖
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```c
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2025-06-25 16:57:23 +08:00
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```
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