本文介绍使用74HC595在LED阵列上，显示数字“0-9”的方法。
一、数字字模0-9
1、0的字模：0x80、0xB6、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 0
|
2
| 0
| 1
| 0
|
3
| 0
| 1
| 0
|
4
| 0
| 1
| 0
|
5
| 0
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
2、1的字模0xFF、0x80、0xFF
行 列
| 2
| 1
| 0
|
0
| 1
| 0
| 1
|
1
| 1
| 0
| 1
|
2
| 1
| 0
| 1
|
3
| 1
| 0
| 1
|
4
| 1
| 0
| 1
|
5
| 1
| 0
| 1
|
6
| 1
| 0
| 1
|
7
| 1
| 1
| 1
|
3、2的字模0x86、0xB6、0xB0
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 1
| 1
| 0
|
2
| 1
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 0
| 1
| 1
|
5
| 0
| 1
| 1
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
4、3的字模0xB6、0xB6、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 1
| 1
| 0
|
2
| 1
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
5、4的字模0xF0、0xF7、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 1
| 0
|
1
| 0
| 1
| 0
|
2
| 0
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 1
| 1
| 0
|
7
| 1
| 1
| 1
|
6、5的字模0xB0、0xB6、0x86
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 1
|
2
| 0
| 1
| 1
|
3
| 0
| 0
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
7、6的字模0x80、0xB6、0x86
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 1
|
2
| 0
| 1
| 1
|
3
| 0
| 0
| 0
|
4
| 0
| 1
| 0
|
5
| 0
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
8、7的字模0xFE、0xFE、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 1
| 1
| 0
|
2
| 1
| 1
| 0
|
3
| 1
| 1
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 1
| 1
| 0
|
7
| 1
| 1
| 1
|
9、8的字模0x80、0xB6、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 0
|
2
| 0
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 0
| 1
| 0
|
5
| 0
| 1
| 0
|
6
| 1
| 0
| 0
|
7
| 1
| 1
| 1
|
10、9的字模0xB0、0xB6、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 0
|
2
| 0
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
二、编程实现倒计时
int main(void)
{
//定义局部变量
//目标板初始化，该函数会自动初始化相应的外设文件
TARGET_Init();
//初始化全局变量
//在上电时，执行的相应操作
//后台主循环
while(1)
{
/*
**********************************
在这里完成自己的项目逻辑
**********************************
*/
HC595_WriteByte(0xB0); //9
HC595_WriteByte(0xB6);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0x80); //8
HC595_WriteByte(0xB6);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xFE); //7
HC595_WriteByte(0xFE);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0x80); //6
HC595_WriteByte(0xB6);
HC595_WriteByte(0x86);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xB0); //5
HC595_WriteByte(0xB6);
HC595_WriteByte(0x86);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xF0); //4
HC595_WriteByte(0xF7);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xB6); //3
HC595_WriteByte(0xB6);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0x86); //2
HC595_WriteByte(0xB6);
HC595_WriteByte(0xB0);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xFF); //1
HC595_WriteByte(0x80);
HC595_WriteByte(0xFF);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0x80); //0
HC595_WriteByte(0xBE);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
/*
**********************************
喂狗语句，大部分工程项目都不应去除
**********************************
*/
#if INTERNAL_PERIPHERAL_WDT_MODE != 0
TARGET_WatchDogReset();
#endif
}
return 0; //永不执行
}
三、程序的优化
#ifndef HAL_H_
#define HAL_H_
//引脚定义
//PortB
#define IO_PB_DIR 0b00000000
#define IO_PB_OUT 0b00000000
//PortC
#define IO_PC_DIR 0b00000000
#define IO_PC_OUT 0b00000000
//PortD
#define IO_PD_DIR 0b00000000
#define IO_PD_OUT 0b00000000
//函数原型声明
void ShowNumber(uint8 u8_Number);
#endif /* HAL_H_ */
任何问题，只需在此文章的评论处留言即可，我将尽力解答，不要试图采用其它的联系方式，我一概不理会。
本文介绍使用74HC595在LED阵列上，显示数字“0-9”的方法。
一、数字字模0-9
1、0的字模：0x80、0xB6、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 0
|
2
| 0
| 1
| 0
|
3
| 0
| 1
| 0
|
4
| 0
| 1
| 0
|
5
| 0
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
2、1的字模0xFF、0x80、0xFF
行 列
| 2
| 1
| 0
|
0
| 1
| 0
| 1
|
1
| 1
| 0
| 1
|
2
| 1
| 0
| 1
|
3
| 1
| 0
| 1
|
4
| 1
| 0
| 1
|
5
| 1
| 0
| 1
|
6
| 1
| 0
| 1
|
7
| 1
| 1
| 1
|
3、2的字模0x86、0xB6、0xB0
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 1
| 1
| 0
|
2
| 1
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 0
| 1
| 1
|
5
| 0
| 1
| 1
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
4、3的字模0xB6、0xB6、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 1
| 1
| 0
|
2
| 1
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
5、4的字模0xF0、0xF7、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 1
| 0
|
1
| 0
| 1
| 0
|
2
| 0
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 1
| 1
| 0
|
7
| 1
| 1
| 1
|
6、5的字模0xB0、0xB6、0x86
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 1
|
2
| 0
| 1
| 1
|
3
| 0
| 0
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
7、6的字模0x80、0xB6、0x86
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 1
|
2
| 0
| 1
| 1
|
3
| 0
| 0
| 0
|
4
| 0
| 1
| 0
|
5
| 0
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
8、7的字模0xFE、0xFE、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 1
| 1
| 0
|
2
| 1
| 1
| 0
|
3
| 1
| 1
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 1
| 1
| 0
|
7
| 1
| 1
| 1
|
9、8的字模0x80、0xB6、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 0
|
2
| 0
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 0
| 1
| 0
|
5
| 0
| 1
| 0
|
6
| 1
| 0
| 0
|
7
| 1
| 1
| 1
|
10、9的字模0xB0、0xB6、0x80
行 列
| 2
| 1
| 0
|
0
| 0
| 0
| 0
|
1
| 0
| 1
| 0
|
2
| 0
| 1
| 0
|
3
| 0
| 0
| 0
|
4
| 1
| 1
| 0
|
5
| 1
| 1
| 0
|
6
| 0
| 0
| 0
|
7
| 1
| 1
| 1
|
二、编程实现倒计时
int main(void)
{
//定义局部变量
//目标板初始化，该函数会自动初始化相应的外设文件
TARGET_Init();
//初始化全局变量
//在上电时，执行的相应操作
//后台主循环
while(1)
{
/*
**********************************
在这里完成自己的项目逻辑
**********************************
*/
HC595_WriteByte(0xB0); //9
HC595_WriteByte(0xB6);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0x80); //8
HC595_WriteByte(0xB6);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xFE); //7
HC595_WriteByte(0xFE);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0x80); //6
HC595_WriteByte(0xB6);
HC595_WriteByte(0x86);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xB0); //5
HC595_WriteByte(0xB6);
HC595_WriteByte(0x86);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xF0); //4
HC595_WriteByte(0xF7);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xB6); //3
HC595_WriteByte(0xB6);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0x86); //2
HC595_WriteByte(0xB6);
HC595_WriteByte(0xB0);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0xFF); //1
HC595_WriteByte(0x80);
HC595_WriteByte(0xFF);
HC595_SELECT;
TARGET_Delayms(1000, 1);
HC595_WriteByte(0x80); //0
HC595_WriteByte(0xBE);
HC595_WriteByte(0x80);
HC595_SELECT;
TARGET_Delayms(1000, 1);
/*
**********************************
喂狗语句，大部分工程项目都不应去除
**********************************
*/
#if INTERNAL_PERIPHERAL_WDT_MODE != 0
TARGET_WatchDogReset();
#endif
}
return 0; //永不执行
}
三、程序的优化
#ifndef HAL_H_
#define HAL_H_
//引脚定义
//PortB
#define IO_PB_DIR 0b00000000
#define IO_PB_OUT 0b00000000
//PortC
#define IO_PC_DIR 0b00000000
#define IO_PC_OUT 0b00000000
//PortD
#define IO_PD_DIR 0b00000000
#define IO_PD_OUT 0b00000000
//函数原型声明
void ShowNumber(uint8 u8_Number);
#endif /* HAL_H_ */
任何问题，只需在此文章的评论处留言即可，我将尽力解答，不要试图采用其它的联系方式，我一概不理会。
举报
