void RXLCD_ScrollWindow_Prev(unsigned short x1,unsigned short y1 ,unsigned short x2 ,unsigned short y2, u8 Speed)
{
u16 i=0;
Scroll_Window(x1,x2,y1,y2);
if(g_u8LcdLayer==1)
{
Layer1_Visible();
for(i= (x2-x1+2);i>0;i--)
{
Scroll(i-1,0);
Delay2us(Speed*2000);
}
g_u8LcdLayer=0;
}
else if(g_u8LcdLayer==0)
{
Layer2_Visible();
for(i= (x2-x1+2);i>0;i--)
{
Scroll(i-1,0);
Delay2us(Speed*2000);
}
g_u8LcdLayer=1;
}
}
void RXLCD_ScrollWindow_Down(unsigned short x1,unsigned short y1 ,unsigned short x2 ,unsigned short y2,unsigned char Speed)
{
u16 i=0;
Scroll_Window(x1,x2,y1,y2);
if(g_u8LcdLayer==1)
{
Layer1_Visible();
for(i= (y2-y1+2);i>0;i--)
{
Scroll(0,i-1);
Delay2us(Speed*2000);
}
g_u8LcdLayer=0;
}
else if(g_u8LcdLayer==0)
{
Layer2_Visible();
for(i= (y2-y1+2);i>0;i--)
{
Scroll(0,i-1);
Delay2us(Speed*2000);
}
g_u8LcdLayer=1;
}
}
//**************************************
//I2C停止信号
//**************************************
void I2C_Stop()
{
SDA = 0; //拉低数据线
SCL = 1; //拉高时钟线
Delay2us(); //延时
SDA = 1; //产生上升沿
Delay2us(); //延时
}
//**************************************
//I2C接收应答信号
//**************************************
bit I2C_RecvACK()
{
SCL = 1; //拉高时钟线
Delay2us(); //延时
CY = SDA; //读应答信号
SCL = 0; //拉低时钟线
Delay2us(); //延时
return CY;
}
//**************************************
//I2C起始信号
//**************************************
void I2C_Start()
{
SDA = 1; //拉高数据线
SCL = 1; //拉高时钟线
Delay2us(); //延时
SDA = 0; //产生下降沿
Delay2us(); //延时
SCL = 0; //拉低时钟线
}
//**************************************
//向I2C总线发送一个字节数据
//**************************************
void I2C_SendByte(uint8_t dat)
{
uint8_t i;
for (i = 0; i < 8; i++) { //8位计数器
dat <<= 1; //移出数据的最高位
SDA = CY; //送数据口
SCL = 1; //拉高时钟线
Delay2us(); //延时
SCL = 0; //拉低时钟线
Delay2us(); //延时
}
I2C_RecvACK();
}
//**************************************
//从I2C设备读取一个字节数据
//**************************************
uint8_t Single_ReadI2C(uint8_t REG_Address)
{
uint8_t REG_data;
I2C_Start(); //起始信号
I2C_SendByte(SlaveAddress); //发送设备地址+写信号
I2C_SendByte(REG_Address); //发送存储单元地址，从0开始
I2C_Start(); //起始信号
I2C_SendByte(SlaveAddress + 1); //发送设备地址+读信号
REG_data = I2C_RecvByte(); //读出寄存器数据
SDA = 1; //写应答信号
SCL = 1; //拉高时钟线
Delay2us(); //延时
SCL = 0; //拉低时钟线
Delay2us(); //延时
I2C_Stop(); //停止信号
return REG_data;
}
//**************************************
//从I2C总线接收一个字节数据
//**************************************
uint8_t I2C_RecvByte()
{
uint8_t i;
uint8_t dat = 0;
SDA = 1; //使能内部上拉,准备读取数据,
for (i = 0; i < 8; i++) { //8位计数器
dat <<= 1;
SCL = 1; //拉高时钟线
Delay2us(); //延时
dat |= SDA; //读数据
SCL = 0; //拉低时钟线
Delay2us(); //延时
}
return dat;
}
//********************写命令
void Write_Command(unsigned char Cmd) // Command Write
{
CS_L;
RS_H;
DATA_BUS_WR(Cmd);
WR_L;
Delay2us(1);
WR_H;
CS_H;
DATA_BUS_WR(0xffff);
RS_L;
}
//********************写数据
void Write_Data(unsigned short Data)
{
CS_L;
RS_L;
DATA_BUS_WR(Data);
WR_L;
Delay2us(1);
WR_H;
CS_H;
DATA_BUS_WR(0xffff);
RS_H;
}
//*********************读命令
unsigned short Read_Command(void) // Command Read（Read Register）
{
unsigned short Data;
DATA_BUS_INPUT;
CS_L;
RS_H;
WR_H;
RD_L;
Delay2us(5);
Data = DATA_BUS_RD;
RD_H;
CS_H;
DATA_BUS_OUTPUT;
DATA_BUS_WR(0xffff);
RS_L;
return Data;
}
//********************读数据
unsigned short Read_Data(void) // Data Read
{
unsigned short Data;
DATA_BUS_INPUT;
WR_H;
CS_L;
RS_L;
RD_L;
Delay2us(5);
Data = DATA_BUS_RD;
RD_H;
CS_H;
DATA_BUS_OUTPUT;
DATA_BUS_WR(0xffff);
RS_H;
return Data;
}
//********************读状态
unsigned char Read_Status(void) // Read Status Register
{
unsigned short Data;
DATA_BUS_INPUT;
CS_L;
RS_H;
WR_H;
RD_L;
Delay2us(5);
Data = DATA_BUS_RD;
RD_H;
CS_H;
DATA_BUS_OUTPUT;
DATA_BUS_WR(0xffff);
RS_L;
return Data;
}
