/* Includes ------------------------------------------------------------------*/
#include "hx8347d.h"
#include "stm32_hx8347d_lcd.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup Components
* @{
*/
/** @addtogroup HX8347D
* @brief This file provides a set of functions needed to drive the
* HX8347D LCD.
* @{
*/
/** @defgroup HX8347D_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup HX8347D_Private_Defines
* @{
*/
//#define MAX(a,b) ( ((a)>(b)) ? (a):(b) )
//#define MIN(a,b) ( ((a)>(b)) ? (b):(a) )
/**
* @}
*/
/** @defgroup HX8347D_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup HX8347D_Private_Variables
* @{
*/
LCD_DrvTypeDef hx8347d_drv =
{
hx8347d_Init,
hx8347d_ReadID,
hx8347d_DisplayOn,
hx8347d_DisplayOff,
hx8347d_SetCursor,
hx8347d_SetRotation,
hx8347d_WritePixel,
hx8347d_ReadPixel,
hx8347d_SetDisplayWindow,
hx8347d_FillRect,
hx8347d_DrawHLine,
hx8347d_DrawVLine,
hx8347d_GetLcdPixelWidth,
hx8347d_GetLcdPixelHeight,
hx8347d_DrawBitmap,
};
static uint8_t Is_hx8347d_Initialized = 0;
//static uint16_t ArrayRGB[320] = {0};
uint16_t _width = 240;
uint16_t _height = 320;
uint8_t _rotation = 1;
/**
* @}
*/
/** @defgroup HX8347D_Private_FunctionPrototypes
* @{
*/
void hx8347d_WriteColor(uint16_t color, uint32_t len);
/**
* @}
*/
/** @defgroup HX8347D_Private_Functions
* @{
*/
/**
* @brief Initialise the HX8347D LCD Component.
* @param None
* @retval None
*/
void hx8347d_Init(void)
{
if(Is_hx8347d_Initialized == 0)
{
Is_hx8347d_Initialized = 1;
/* Initialise HX8347D low level bus layer --------------------------------*/
/* Driving ability setting */
hx8347d_WriteReg(LCD_REG_234, 0x00);
hx8347d_WriteReg(LCD_REG_235, 0x20);
hx8347d_WriteReg(LCD_REG_236, 0x0C);
hx8347d_WriteReg(LCD_REG_237, 0xC4);
hx8347d_WriteReg(LCD_REG_232, 0x40);
hx8347d_WriteReg(LCD_REG_233, 0x38);
hx8347d_WriteReg(LCD_REG_241, 0x01);
hx8347d_WriteReg(LCD_REG_242, 0x10);
hx8347d_WriteReg(LCD_REG_39, 0xA3);
/* Adjust the Gamma Curve */
hx8347d_WriteReg(LCD_REG_64, 0x01);
hx8347d_WriteReg(LCD_REG_65, 0x00);
hx8347d_WriteReg(LCD_REG_66, 0x00);
hx8347d_WriteReg(LCD_REG_67, 0x10);
hx8347d_WriteReg(LCD_REG_68, 0x0E);
hx8347d_WriteReg(LCD_REG_69, 0x24);
hx8347d_WriteReg(LCD_REG_70, 0x04);
hx8347d_WriteReg(LCD_REG_71, 0x50);
hx8347d_WriteReg(LCD_REG_72, 0x02);
hx8347d_WriteReg(LCD_REG_73, 0x13);
hx8347d_WriteReg(LCD_REG_74, 0x19);
hx8347d_WriteReg(LCD_REG_75, 0x19);
hx8347d_WriteReg(LCD_REG_76, 0x16);
hx8347d_WriteReg(LCD_REG_80, 0x1B);
hx8347d_WriteReg(LCD_REG_81, 0x31);
hx8347d_WriteReg(LCD_REG_82, 0x2F);
hx8347d_WriteReg(LCD_REG_83, 0x3F);
hx8347d_WriteReg(LCD_REG_84, 0x3F);
hx8347d_WriteReg(LCD_REG_85, 0x3E);
hx8347d_WriteReg(LCD_REG_86, 0x2F);
hx8347d_WriteReg(LCD_REG_87, 0x7B);
hx8347d_WriteReg(LCD_REG_88, 0x09);
hx8347d_WriteReg(LCD_REG_89, 0x06);
hx8347d_WriteReg(LCD_REG_90, 0x06);
hx8347d_WriteReg(LCD_REG_91, 0x0C);
hx8347d_WriteReg(LCD_REG_92, 0x1D);
hx8347d_WriteReg(LCD_REG_93, 0xCC);
/* Power voltage setting */
hx8347d_WriteReg(LCD_REG_27, 0x1B);
hx8347d_WriteReg(LCD_REG_26, 0x01);
hx8347d_WriteReg(LCD_REG_36, 0x2F);
hx8347d_WriteReg(LCD_REG_37, 0x57);
/*****VCOM offset ****/
hx8347d_WriteReg(LCD_REG_35, 0x86);
/* Power on setting up flow */
hx8347d_WriteReg(LCD_REG_24, 0x36); /* Display frame rate = 70Hz RADJ = '0110' */
hx8347d_WriteReg(LCD_REG_25, 0x01); /* OSC_EN = 1 */
hx8347d_WriteReg(LCD_REG_28, 0x06); /* AP[2:0] = 111 */
hx8347d_WriteReg(LCD_REG_29, 0x06); /* AP[2:0] = 111 */
hx8347d_WriteReg(LCD_REG_31, 0x90); /* GAS=1, VOMG=00, PON=1, DK=0, XDK=0, DVDH_TRI=0, STB=0*/
hx8347d_WriteReg(LCD_REG_39, 1); /* REF = 1 */
LCD_Delay(10);
/* 262k/65k color selection */
hx8347d_WriteReg(LCD_REG_23, 0x05); /* default 0x06 262k color, 0x05 65k color */
/* SET PANEL */
hx8347d_WriteReg(LCD_REG_54, 0x0A); /* SS_PANEL = 1, GS_PANEL = 0,REV_PANEL = 1, BGR_PANEL = 0 */ //color
/* Display ON flow */
hx8347d_WriteReg(LCD_REG_40, 0x38); /* GON=1, DTE=1, D=10 */
LCD_Delay(60);
hx8347d_WriteReg(LCD_REG_40, 0x3C); /* GON=1, DTE=1, D=11 */
/* Set GRAM Area - Partial Display Control */
hx8347d_WriteReg(LCD_REG_1, 0x00); /* DP_STB = 0, DP_STB_S = 0, SCROLL = 0, */
hx8347d_WriteReg(LCD_REG_2, 0x00); /* Column address start 2 */
hx8347d_WriteReg(LCD_REG_3, 0x00); /* Column address start 1 */
hx8347d_WriteReg(LCD_REG_6, 0x00); /* Row address start 2 */
hx8347d_WriteReg(LCD_REG_7, 0x00); /* Row address start 2 */
// hx8347d_WriteReg(LCD_REG_22, 0x60); /* Memory access control: MY = 1, MX = 0, MV = 1, ML = 0 */
}
/* Set the Cursor */
hx8347d_SetCursor(0, 0);
// hx8347d_SetRotation(0);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
}
/**
* @brief Enables the Display.
* @param None
* @retval None
*/
void hx8347d_DisplayOn(void)
{
/* Power On sequence ---------------------------------------------------------*/
hx8347d_WriteReg(LCD_REG_24, 0x36); /* Display frame rate = 70Hz RADJ = '0110' */
hx8347d_WriteReg(LCD_REG_25, 0x01); /* OSC_EN = 1 */
hx8347d_WriteReg(LCD_REG_28, 0x06); /* AP[2:0] = 111 */
hx8347d_WriteReg(LCD_REG_31, 0x90); /* GAS=1, VOMG=00, PON=1, DK=0, XDK=0, DVDH_TRI=0, STB=0*/
LCD_Delay(10);
/* 262k/65k color selection */
hx8347d_WriteReg(LCD_REG_23, 0x05); /* default 0x06 262k color, 0x05 65k color */
/* SET PANEL */
hx8347d_WriteReg(LCD_REG_54, 0x0A); /* SS_PANEL = 1, GS_PANEL = 0,REV_PANEL = 1, BGR_PANEL = 0 */
/* Display On */
hx8347d_WriteReg(LCD_REG_40, 0x38);
LCD_Delay(60);
hx8347d_WriteReg(LCD_REG_40, 0x3C);
LCD_BL_ON();
}
/**
* @brief Disables the Display.
* @param None
* @retval None
*/
void hx8347d_DisplayOff(void)
{
/* Power Off sequence ---------------------------------------------------------*/
hx8347d_WriteReg(LCD_REG_23, 0x0000); /* default 0x06 262k color, 0x05 65k color */
hx8347d_WriteReg(LCD_REG_24, 0x0000); /* Display frame rate = 70Hz RADJ = '0110' */
hx8347d_WriteReg(LCD_REG_25, 0x0000); /* OSC_EN = 1 */
hx8347d_WriteReg(LCD_REG_28, 0x0000); /* AP[2:0] = 111 */
hx8347d_WriteReg(LCD_REG_31, 0x0000); /* GAS=1, VOMG=00, PON=1, DK=0, XDK=0, DVDH_TRI=0, STB=0*/
hx8347d_WriteReg(LCD_REG_54, 0x0000); /* SS_PANEL = 1, GS_PANEL = 0,REV_PANEL = 0, BGR_PANEL = 1 */
/* Display Off */
hx8347d_WriteReg(LCD_REG_40, 0x38);
LCD_Delay(60);
hx8347d_WriteReg(LCD_REG_40, 0x04);
LCD_BL_OFF();
}
/**
* @brief Get the LCD pixel Width.
* @param None
* @retval The Lcd Pixel Width
*/
uint16_t hx8347d_GetLcdPixelWidth(void)
{
return (uint16_t)_width;
}
/**
* @brief Get the LCD pixel Height.
* @param None
* @retval The Lcd Pixel Height
*/
uint16_t hx8347d_GetLcdPixelHeight(void)
{
return (uint16_t)_height;
}
/**
* @brief Get the HX8347D ID.
* @param None
* @retval The HX8347D ID
*/
uint16_t hx8347d_ReadID(void)
{
if(Is_hx8347d_Initialized == 0)
{
hx8347d_Init();
Is_hx8347d_Initialized = 1;
}
return (hx8347d_ReadReg(0x00));
}
/**
* @brief Set Cursor position.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @retval None
*/
void hx8347d_SetCursor(uint16_t Xpos, uint16_t Ypos)
{
switch(_rotation){
case 0:
hx8347d_WriteReg(LCD_REG_6, Ypos >> 8);
hx8347d_WriteReg(LCD_REG_7, Ypos & 0xFF);
hx8347d_WriteReg(LCD_REG_2, Xpos >> 8);
hx8347d_WriteReg(LCD_REG_3, Xpos & 0xFF);
break;
case 1:
hx8347d_WriteReg(LCD_REG_6, Xpos >> 8);
hx8347d_WriteReg(LCD_REG_7, Xpos & 0xFF);
hx8347d_WriteReg(LCD_REG_2, Ypos >> 8);
hx8347d_WriteReg(LCD_REG_3, Ypos & 0xFF);
break;
case 2:
hx8347d_WriteReg(LCD_REG_6, Ypos >> 8);
hx8347d_WriteReg(LCD_REG_7, Ypos & 0xFF);
hx8347d_WriteReg(LCD_REG_2, Xpos >> 8);
hx8347d_WriteReg(LCD_REG_3, Xpos & 0xFF);
break;
case 3:
hx8347d_WriteReg(LCD_REG_6, Xpos >> 8);
hx8347d_WriteReg(LCD_REG_7, Xpos & 0xFF);
hx8347d_WriteReg(LCD_REG_2, Ypos >> 8);
hx8347d_WriteReg(LCD_REG_3, Ypos & 0xFF);
break;
}
}
/**
* @brief Write pixel.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param RGBCode: the RGB pixel color
* @retval None
*/
void hx8347d_WritePixel(uint16_t Xpos, uint16_t Ypos, uint16_t RGBCode)
{
/* Set Cursor */
hx8347d_SetCursor(Xpos, Ypos);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
/* Write 16-bit GRAM Reg */
LCD_IO_WriteMultipleData((uint8_t*)&RGBCode, 2);
}
/**
* @brief Read pixel.
* @param None
* @retval the RGB pixel color
*/
uint16_t hx8347d_ReadPixel(uint16_t Xpos, uint16_t Ypos)
{
/* Set Cursor */
hx8347d_SetCursor(Xpos, Ypos);
/* Dummy read */
LCD_IO_ReadData(LCD_REG_34);
/* Read 16-bit Reg */
return (LCD_IO_ReadData(LCD_REG_34));
}
/**
* @brief Writes to the selected LCD register.
* @param LCDReg: address of the selected register.
* @param LCDRegValue: value to write to the selected register.
* @retval None
*/
void hx8347d_WriteReg(uint8_t LCDReg, uint16_t LCDRegValue)
{
LCD_IO_WriteReg(LCDReg);
/* Write 16-bit GRAM Reg */
LCD_IO_WriteMultipleData((uint8_t*)&LCDRegValue, 2);
}
/**
* @brief Reads the selected LCD Register.
* @param LCDReg: address of the selected register.
* @retval LCD Register Value.
*/
uint16_t hx8347d_ReadReg(uint8_t LCDReg)
{
/* Read 16-bit Reg */
return (LCD_IO_ReadData(LCDReg));
}
/**
* @brief Sets a display window
* @param Xpos: specifies the X bottom left position.
* @param Ypos: specifies the Y bottom left position.
* @param Height: display window height.
* @param Width: display window width.
* @retval None
*/
void hx8347d_SetDisplayWindow(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
/* Horizontal GRAM Start Address */
hx8347d_WriteReg(LCD_REG_6, (Xpos) >> 8); /* SP */
hx8347d_WriteReg(LCD_REG_7, (Xpos) & 0xFF); /* SP */
/* Horizontal GRAM End Address */
hx8347d_WriteReg(LCD_REG_8, (Xpos + Height - 1) >> 8); /* EP */
hx8347d_WriteReg(LCD_REG_9, (Xpos + Height - 1) & 0xFF); /* EP */
/* Vertical GRAM Start Address */
hx8347d_WriteReg(LCD_REG_2, (Ypos) >> 8); /* SC */
hx8347d_WriteReg(LCD_REG_3, (Ypos) & 0xFF); /* SC */
/* Vertical GRAM End Address */
hx8347d_WriteReg(LCD_REG_4, (Ypos + Width - 1) >> 8); /* EC */
hx8347d_WriteReg(LCD_REG_5, (Ypos + Width - 1) & 0xFF); /* EC */
}
void hx8347d_FillRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height, uint16_t RGBCode){
if ((Xpos >= _width) || (Ypos >= _height)) return;
int16_t x2 = Xpos + Width - 1, y2 = Ypos + Height - 1;
if ((x2 < 0) || (y2 < 0)) return;
// // Clip left/top
// if (Xpos < 0) {
// Xpos = 0;
// Width = x2 + 1;
// }
// if (Ypos < 0) {
// Ypos = 0;
// Height = y2 + 1;
// }
// Clip right/bottom
if (x2 >= _width) Width = _width - Xpos;
if (y2 >= _height) Height = _height - Ypos;
int32_t len = (int32_t)Width * Height;
hx8347d_SetDisplayWindow(Xpos, Ypos, Width, Height);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
hx8347d_WriteColor(RGBCode,len);
}
void hx8347d_WriteColor(uint16_t color, uint32_t len){
uint16_t temp[TFT_MAX_PIXELS_AT_ONCE] ;
size_t blen = (len > TFT_MAX_PIXELS_AT_ONCE) ? TFT_MAX_PIXELS_AT_ONCE : len;
uint16_t tlen = 0;
for(uint32_t t = 0; t < blen; t ++){
temp[t] = color;
}
while (len) {
tlen = (len > blen) ? blen : len;
LCD_IO_WriteMultipleData((uint8_t*)temp, tlen*2);
len -= tlen;
}
}
/**
* @brief Set the Rotation.
* @param rotation: 0(0��), 1(90��), 2(180��), 3(270��)
* @retval None
*/
void hx8347d_SetRotation(uint8_t rotation)
{
_rotation = rotation%4;
switch(_rotation){
case 0:
/* Memory access control: MY = 0, MX = 0, MV = 0, ML = 0 */
hx8347d_WriteReg(LCD_REG_22, 0x08);
hx8347d_WriteReg(LCD_REG_4, 0x00);
hx8347d_WriteReg(LCD_REG_5, 0xEF);
hx8347d_WriteReg(LCD_REG_8, 0x01);
hx8347d_WriteReg(LCD_REG_9, 0x3F);
_height = HX8347D_LCD_PIXEL_WIDTH + 2;
_width = HX8347D_LCD_PIXEL_HEIGHT + 2;
break;
case 1:
/* Memory access control: MY = 1, MX = 1, MV = 0, ML = 1 */
hx8347d_WriteReg(LCD_REG_22, 0x68);
hx8347d_WriteReg(LCD_REG_4, 0x01);
hx8347d_WriteReg(LCD_REG_5, 0x3F);
hx8347d_WriteReg(LCD_REG_8, 0x00);
hx8347d_WriteReg(LCD_REG_9, 0xEF);
_height = HX8347D_LCD_PIXEL_HEIGHT;
_width = HX8347D_LCD_PIXEL_WIDTH;
break;
case 2:
/* Memory access control: MY = 1, MX = 1, MV = 0, ML = 0 */
hx8347d_WriteReg(LCD_REG_22, 0xC8);
hx8347d_WriteReg(LCD_REG_4, 0x00);
hx8347d_WriteReg(LCD_REG_5, 0xEF);
hx8347d_WriteReg(LCD_REG_8, 0x01);
hx8347d_WriteReg(LCD_REG_9, 0x3F);
_height = HX8347D_LCD_PIXEL_WIDTH;
_width = HX8347D_LCD_PIXEL_HEIGHT;
break;
case 3:
/* Memory access control: MY = 1, MX = 0, MV = 1, ML = 0 */
hx8347d_WriteReg(LCD_REG_22, 0xA8);
hx8347d_WriteReg(LCD_REG_4, 0x01);
hx8347d_WriteReg(LCD_REG_5, 0x3F);
hx8347d_WriteReg(LCD_REG_8, 0x00);
hx8347d_WriteReg(LCD_REG_9, 0xEF);
_height = HX8347D_LCD_PIXEL_HEIGHT;
_width = HX8347D_LCD_PIXEL_WIDTH;
break;
}
}
/**
* @brief Draw vertical line.
* @param RGBCode: Specifies the RGB color
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param Length: specifies the Line length.
* @retval None
*/
void hx8347d_DrawHLine(uint16_t RGBCode, uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint16_t i,x1 = MIN((Xpos + Length),(_width - 1));
if(Xpos >= _width || Ypos >= _height){
return;
}
if((_rotation == 0) || (_rotation == 2)){
for(i = Xpos; i <= x1; i++){
hx8347d_WritePixel(Ypos,i,RGBCode);
}
}else{
for(i = Xpos; i <= x1; i++){
hx8347d_WritePixel(i,Ypos,RGBCode);
}
}
}
/**
* @brief Draw vertical line.
* @param RGBCode: Specifies the RGB color
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param Length: specifies the Line length.
* @retval None
*/
void hx8347d_DrawVLine(uint16_t RGBCode, uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint16_t i,y1 = MIN((Ypos + Length),(_height - 1));
if(Xpos >= _width || Ypos >= _height){
return;
}
if((_rotation == 0) || (_rotation == 2)){
for(i = Ypos; i <= y1; i++){
hx8347d_WritePixel(i,Xpos,RGBCode);
}
}else{
for(i = Ypos; i <= y1; i++){
hx8347d_WritePixel(Xpos,i,RGBCode);
}
}
}
/**
* @brief Displays a bitmap picture loaded in the internal Flash.
* @param BmpAddress: Bmp picture address in the internal Flash.
* @retval None
*/
void hx8347d_DrawBitmap(uint16_t Xpos, uint16_t Ypos, uint8_t *pbmp)
{
uint32_t index = 0, size = 0;
/* Read bitmap size */
size = *(volatile uint16_t *) (pbmp + 2);
size |= (*(volatile uint16_t *) (pbmp + 4)) << 16;
/* Get bitmap data address offset */
index = *(volatile uint16_t *) (pbmp + 10);
index |= (*(volatile uint16_t *) (pbmp + 12)) << 16;
size = (size - index)/2;
pbmp += index;
/* Set GRAM write direction and BGR = 0 */
/* Memory access control: MY = 1, MX = 0, MV = 1, ML = 0 */
hx8347d_WriteReg(LCD_REG_22, 0xC0);
/* Set Cursor */
hx8347d_SetCursor(Xpos, Ypos);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
LCD_IO_WriteMultipleData((uint8_t*)pbmp, size*2);
/* Set GRAM write direction and BGR = 0 */
/* Memory access control: MY = 1, MX = 1, MV = 1, ML = 0 */
switch(_rotation){
case 0:
hx8347d_WriteReg(LCD_REG_22, 0x08);
break;
case 1:
hx8347d_WriteReg(LCD_REG_22, 0x68);
break;
case 2:
hx8347d_WriteReg(LCD_REG_22, 0xC8);
break;
case 3:
hx8347d_WriteReg(LCD_REG_22, 0xA8);
break;
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/