void LcdInit(void)
{
//输出引脚初始化
Init_LCDGpio();
SpiInit(); //SPI初始化
LCD_SCLK_LOW();
LCD_SCLK_HIGH();
LCD_SDIN_LOW();
LCD_SDIN_HIGH();
LCD_DC_LOW();
LCD_DC_HIGH();
LCD_SCE_LOW();
LCD_SCE_HIGH();
LcdReset(); /*液晶复位*/
//LcdFunctionSet(ACTIVE, H_ADDR, EXT_INS); /*扩展指令集*/
LcdBiasSystem(0x03); /*推荐混合率 1:48*/
LcdSetVop(0x32); /*V(6.06) = 3.06 + 0.06*Vop*/
LcdTempCtrl(0x00); /*温度系数 0~3*/
LcdFunctionSet(ACTIVE, H_ADDR, BAS_INS); /*基本指令集*/
LcdDispalyControl((u8)NORMAL_MODE); /*普通模式显示*/
//
LcdWriteDC(LCDCMD , 0x21 ); /*扩展指令*/
LcdWriteDC(LCDCMD , 0xc8 ); /*设置偏压*/
LcdWriteDC(LCDCMD , 0x20 ); /*标准指令*/
LcdWriteDC(LCDCMD , 0x0c );/*标准显示模式*/
LcdClsScr();
}
// 发送数据或指令
// DC : 数据或指令
// info : 发送的信息
void LcdWriteDC(u8 DC, uint8_t info)
{
LcdEnable(TRUE);
if( DC == DATA)
LCD_DC_HIGH();
else
LCD_DC_LOW();
Delaynus(5);
SpiSendByte(info);
LcdEnable(FALSE);
}
/**
* @brief Write register value.
* @param pData Pointer on the register value
* @param Size Size of byte to transmit to the register
* @retval None
*/
void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size)
{
uint32_t counter = 0;
__IO uint32_t data = 0;
/* Reset LCD control line CS */
LCD_CS_LOW();
/* Set LCD data/command line DC to High */
LCD_DC_HIGH();
if (Size == 1)
{
/* Only 1 byte to be sent to LCD - general interface can be used */
/* Send Data */
SPIx_Write(*pData);
}
else
{
/* Several data should be sent in a raw */
/* Direct SPI accesses for optimization */
for (counter = Size; counter != 0; counter--)
{
while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_TXE) != SPI_FLAG_TXE)
{
}
/* Need to invert bytes for LCD*/
*((__IO uint8_t*)&hnucleo_Spi.Instance->DR) = *(pData+1);
while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_TXE) != SPI_FLAG_TXE)
{
}
*((__IO uint8_t*)&hnucleo_Spi.Instance->DR) = *pData;
counter--;
pData += 2;
}
/* Wait until the bus is ready before releasing Chip select */
while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_BSY) != RESET)
{
}
}
/* Empty the Rx fifo */
data = *(&hnucleo_Spi.Instance->DR);
UNUSED(data); /* Remove GNU warning */
/* Deselect : Chip Select high */
LCD_CS_HIGH();
}
/**
* @brief Writes data to select the LCD register.
* This function must be used after st7735_WriteReg() function
* @param Data: data to write to the selected register.
* @retval None
*/
void LCD_IO_WriteData(uint8_t Data)
{
/* Reset LCD control line CS */
LCD_CS_LOW();
/* Set LCD data/command line DC to High */
LCD_DC_HIGH();
/* Send Data */
SPIx_Write(Data);
/* Deselect : Chip Select high */
LCD_CS_HIGH();
}
void LCDSend(unsigned char data, unsigned char cd)
{
LCD_CS_LOW();
if (cd == SEND_CHR)
{
LCD_DC_HIGH();
}
else
{
LCD_DC_LOW();
}
// send data over SPI
SEND_BYTE_SPI();
LCD_CS_HIGH();
}
//void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size)
void LCD_IO_WriteMultipleData(uint16_t *pData, uint32_t Size)
{
uint32_t counter = 0;
/* Reset LCD control line CS */
LCD_CS_LOW();
/* Set LCD data/command line DC to High */
LCD_DC_HIGH();
if (Size == 1)
{
/* Only 1 byte to be sent to LCD - general interface can be used */
/* Send Data */
// SPIx_Write(*pData);
//LCD_RW_LOW();
LCD_PORT_Value((*pData)>>8);
//LCD_RW_HIGH();
Toggle_LCD_RW();
//LCD_RW_LOW();
LCD_PORT_Value(*pData);
//LCD_RW_HIGH();
Toggle_LCD_RW();
}
void LCD_IO_WriteData(uint16_t LCDData)
{
/* Reset LCD control line CS */
LCD_CS_LOW();
/* Set LCD data/command line DC to Low */
LCD_DC_HIGH();
//LCD_RW_LOW();
/* Send Command */
//SPIx_Write(LCDReg);
LCD_PORT_Value(LCDData >> 8);
Toggle_LCD_RW();
//LCD_RW_HIGH();
//LCD_RW_LOW();
/* Send Command */
//SPIx_Write(LCDReg);
LCD_PORT_Value(LCDData);
Toggle_LCD_RW();
//LCD_RW_HIGH();
/* Deselect : Chip Select high */
LCD_CS_HIGH();
}