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- #ifndef __CH455_H
- #define __CH455_H
- #include "sys.h"
-
- typedef unsigned char UINT8;
- typedef unsigned short UINT16;
-
- #define high 1
- #define low 0
-
- /* 2线接口的连接,与实际电路有关 */
- #define CH455_SCL PBout(10) //SCL
- #define CH455_SDA PBout(11) //SDA
- #define READ_SDA PBin(11) //输入SDA
- #define CH455_INT_N GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1)//读取CH455H INT
- #define KEY3 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_5)//读取按键3
- //#define KEY4 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_6)//读取按键4
-
-
- /* 2线接口的位操作,与单片机有关 */
- #define CH455_SCL_SET {CH455_SCL=1;}
- #define CH455_SCL_CLR {CH455_SCL=0;}
- //#define CH455_SCL_D_OUT {GPIOB->CRH&=0XFFFF0FFF;GPIOB->CRH|=3<<10;} // 设置SCL为输出方向,对于双向I/O需切换为输出
- #define CH455_SCL_D_OUT {CH455H_SCL_D_OUT();}
- #define CH455_SDA_SET {CH455_SDA=1;}
- #define CH455_SDA_CLR {CH455_SDA=0;}
- #define CH455_SDA_IN GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1) // 读取SDA输入电平
- //#define CH455_SDA_D_OUT {GPIOB->CRH&=0XFFFF0FFF;GPIOB->CRH|=3<<11;} // 设置SDA为输出方向,对于双向I/O需切换为输出
- #define CH455_SDA_D_OUT {CH455H_SDA_D_OUT();}
- //#define CH455_SDA_D_IN {GPIOB->CRH&=0XFFFF0FFF;GPIOB->CRH|=8<<11;} // 设置SDA为输入方向,对于双向I/O需切换为输入
- #define CH455_SDA_D_IN {CH455H_SDA_D_IN();}
- /* ********************************************************************************************* */
- // 设置系统参数命令
- #define CH455_BIT_ENABLE 0x01 // 开启/关闭位
- #define CH455_BIT_SLEEP 0x04 // 睡眠控制位
- #define CH455_BIT_7SEG 0x08 // 7段控制位
- #define CH455_BIT_INTENS1 0x10 // 1级亮度
- #define CH455_BIT_INTENS2 0x20 // 2级亮度
- #define CH455_BIT_INTENS3 0x30 // 3级亮度
- #define CH455_BIT_INTENS4 0x40 // 4级亮度
- #define CH455_BIT_INTENS5 0x50 // 5级亮度
- #define CH455_BIT_INTENS6 0x60 // 6级亮度
- #define CH455_BIT_INTENS7 0x70 // 7级亮度
- #define CH455_BIT_INTENS8 0x00 // 8级亮度
- #define CH455_SYSOFF 0x0400 // 关闭显示、关闭键盘
- #define CH455_SYSON ( CH455_SYSOFF | CH455_BIT_ENABLE ) // 开启显示、键盘
- #define CH455_SLEEPOFF CH455_SYSOFF // 关闭睡眠
- #define CH455_SLEEPON ( CH455_SYSOFF | CH455_BIT_SLEEP ) // 开启睡眠
- #define CH455_7SEG_ON ( CH455_SYSON | CH455_BIT_7SEG ) // 开启七段模式
- #define CH455_8SEG_ON ( CH455_SYSON | 0x00 ) // 开启八段模式
- #define CH455_SYSON_4 ( CH455_SYSON | CH455_BIT_INTENS4 ) // 开启显示、键盘、4级亮度
- #define CH455_SYSON_6 ( CH455_SYSON | CH455_BIT_INTENS6 ) // 开启显示、键盘、6级亮度
- #define CH455_SYSON_8 ( CH455_SYSON | CH455_BIT_INTENS8 ) // 开启显示、键盘、8级亮度
- // 加载字数据命令
- #define CH455_DIG0 0x1400 // 数码管位0显示,需另加8位数据
- #define CH455_DIG1 0x1500 // 数码管位1显示,需另加8位数据
- #define CH455_DIG2 0x1600 // 数码管位2显示,需另加8位数据
- #define CH455_DIG3 0x1700 // 数码管位3显示,需另加8位数据
- // 读取按键代码命令
- #define CH455_GET_KEY 0x0700 // 获取按键,返回按键代码
- // CH455接口定义
- #define CH455_I2C_ADDR 0x40 // CH455的地址
- #define CH455_I2C_MASK 0x3E // CH455的高字节命令掩码
- void CH455H_SCL_D_OUT(void);
- void CH455H_SDA_D_OUT(void);
- void CH455H_SDA_D_IN(void);
- // 对外子程序
- extern void CH455_Init(void); //初始化函数
- extern UINT8 CH455_Read( void ); // 从CH455读取按键代码
- extern void CH455_Write( UINT16 cmd ); // 向CH455发出操作命令
- extern volatile UINT8 USER_BUTTON;
- UINT8 CH455_I2c_RdByte( void );
- void CH455_I2c_WrByte(unsigned char IIC_Byte);
- void CH455_I2c_Stop(void);
- void CH455_I2c_Start(void);
- void EXTI_MY_INIT(void);
- extern const UINT8 BCD_decode_tab[0x10];
- extern const UINT8 Letter_tab[38];
- #endif /* CH455_H */
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