/* Includes ------------------------------------------------------------------*/
#include "st7789.h"
#include "stm32_hx8347d_lcd.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup Components
* @{
*/
/** @addtogroup st7789v
* @brief This file provides a set of functions needed to drive the
* st7789v LCD.
* @{
*/
/** @defgroup st7789v_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup st7789v_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup st7789v_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup st7789v_Private_Variables
* @{
*/
LCD_DrvTypeDef st7789v_drv =
{
st7789v_Init,
0,
st7789v_DisplayOn,
st7789v_DisplayOff,
st7789v_SetCursor,
st7789_SetRotation,
st7789v_WritePixel,
0,
st7789v_SetDisplayWindow,
st7789v_FillRect,
st7789v_DrawHLine,
st7789v_DrawVLine,
st7789v_GetLcdPixelWidth,
st7789v_GetLcdPixelHeight,
st7789v_DrawBitmap,
0
};
//static uint8_t Is_st7789v_Initialized = 0;
static uint16_t ArrayRGB[280] = {0};
uint16_t st7789v_width = ST7789V_LCD_PIXEL_WIDTH;
uint16_t st7789v_height = ST7789V_LCD_PIXEL_HEIGHT;
uint8_t st7789v_rotation = 0;
/**
* @}
*/
/** @defgroup st7789v_Private_FunctionPrototypes
* @{
*/
void st7789v_WriteColor(uint16_t color, uint32_t len);
/**
* @}
*/
/** @defgroup st7789v_Private_Functions
* @{
*/
/**
* @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 st7789v_WriteRegCmd(uint8_t LCDReg)
{
LCD_DC_LOW();
LCD_IO_WriteReg(LCDReg);
LCD_DC_HIGH();
}
/**
* @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 st7789v_WriteReg(uint8_t LCDReg, uint8_t LCDRegValue)
{
LCD_DC_LOW();
LCD_IO_WriteReg(LCDReg);
LCD_IO_WriteMultipleData(&LCDRegValue, 1);
LCD_DC_HIGH();
}
/**
* @brief Initialize the st7789v LCD Component.
* @param None
* @retval None
*/
void st7789v_Init(void)
{
/* Initialize st7789v low level bus layer -----------------------------------*/
LCD_IO_Init();
//LCD_CS_LOW(); //CHIP SELECT
LCD_RST_LOW(); // CHIP RESET
HAL_Delay(100);
LCD_RST_HIGH();
HAL_Delay(100);
LCD_BL_OFF();
HAL_Delay(100);
LCD_BL_ON();
HAL_Delay(100);
/* Out of sleep mode, 0 args, no delay */
st7789v_WriteRegCmd(0x11);
HAL_Delay(120);
st7789v_WriteRegCmd(0x36);
if (st7789v_rotation ==0) st7789v_WriteRegCmd(0x00);
else if (st7789v_rotation ==1) st7789v_WriteRegCmd(0xC0);
if (st7789v_rotation ==2) st7789v_WriteRegCmd(0x70);
else st7789v_WriteRegCmd(0xA0);
st7789v_WriteReg(0x3A, 0x05); // 16bit color
// porch control
st7789v_WriteReg(0xB2, 0x0C);
st7789v_WriteReg(0xB2, 0x0C);
st7789v_WriteReg(0xB2, 0x00);
st7789v_WriteReg(0xB2, 0x33);
st7789v_WriteReg(0xB2, 0x33);
st7789v_WriteReg(0xB7, 0x35); //VGH=13.26V, VGL=-10.43V
st7789v_WriteReg(0xBB, 0x32); //VCOM
st7789v_WriteReg(0xC2, 0x01); //VDV VRH enable
st7789v_WriteReg(0xC3, 0x15); //VAP //5V
st7789v_WriteReg(0xC4, 0x20); //VDV
st7789v_WriteReg(0xC6, 0x0F); //Frame rate, 60hz
st7789v_WriteReg(0xD0, 0xA4); //power control
st7789v_WriteReg(0xD0, 0xA1);
st7789v_WriteReg(0xE0, 0xD0);
st7789v_WriteReg(0xE0, 0x08);
st7789v_WriteReg(0xE0, 0x0E);
st7789v_WriteReg(0xE0, 0x09);
st7789v_WriteReg(0xE0, 0x09);
st7789v_WriteReg(0xE0, 0x05);
st7789v_WriteReg(0xE0, 0x31);
st7789v_WriteReg(0xE0, 0x33);
st7789v_WriteReg(0xE0, 0x48);
st7789v_WriteReg(0xE0, 0x17);
st7789v_WriteReg(0xE0, 0x14);
st7789v_WriteReg(0xE0, 0x15);
st7789v_WriteReg(0xE0, 0x31);
st7789v_WriteReg(0xE0, 0x34);
st7789v_WriteReg(0xE1, 0xD0);
st7789v_WriteReg(0xE1, 0x08);
st7789v_WriteReg(0xE1, 0x0E);
st7789v_WriteReg(0xE1, 0x09);
st7789v_WriteReg(0xE1, 0x09);
st7789v_WriteReg(0xE1, 0x15);
st7789v_WriteReg(0xE1, 0x31);
st7789v_WriteReg(0xE1, 0x33);
st7789v_WriteReg(0xE1, 0x48);
st7789v_WriteReg(0xE1, 0x17);
st7789v_WriteReg(0xE1, 0x14);
st7789v_WriteReg(0xE1, 0x15);
st7789v_WriteReg(0xE1, 0x31);
st7789v_WriteReg(0xE1, 0x34);
st7789v_WriteRegCmd(0x21);
st7789v_WriteRegCmd(0x29);
}
/**
* @brief Enables the Display.
* @param None
* @retval None
*/
void st7789v_DisplayOn(void)
{
//uint8_t data = 0;
LCD_IO_WriteReg(0x13);/* Partial off (Normal): NORON */
LCD_Delay(10);
LCD_IO_WriteReg(0x29);/* Display on: DISPON */
LCD_Delay(10);
// LCD_IO_WriteReg(0x36);/* Memory data access control: MADCTL */
// data = 0xC0;
// LCD_IO_WriteMultipleData(&data, 1);
}
/**
* @brief Disables the Display.
* @param None
* @retval None
*/
void st7789v_DisplayOff(void)
{
//uint8_t data = 0;
LCD_IO_WriteReg(0x13);/* Partial off (Normal): NORON */
LCD_Delay(10);
LCD_IO_WriteReg(0x28);/* Display off: DISPOFF */
LCD_Delay(10);
//LCD_IO_WriteReg(0x36);/* Memory data access control: MADCTL */
//data = 0xC0;
//LCD_IO_WriteMultipleData(&data, 1);
}
/**
* @brief Sets Cursor position.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @retval None
*/
void st7789v_SetCursor(uint16_t Xpos, uint16_t Ypos)
{
uint8_t data = 0;
LCD_IO_WriteReg(0x2A);/* Column address set: CASET */
data = (Xpos) >> 8;
LCD_IO_WriteMultipleData(&data, 1);
data = (Xpos) & 0xFF;
LCD_IO_WriteMultipleData(&data, 1);
LCD_IO_WriteReg(0x2B);/* Row address set: RASET */
data = (Ypos+20) >> 8;
LCD_IO_WriteMultipleData(&data, 1);
data = (Ypos+20) & 0xFF;
LCD_IO_WriteMultipleData(&data, 1);
LCD_IO_WriteReg(0x2C);/* Memory write: RAMWR */
}
/**
* @brief Writes pixel.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param RGBCode: the RGB pixel color
* @retval None
*/
void st7789v_WritePixel(uint16_t Xpos, uint16_t Ypos, uint16_t RGBCode)
{
uint8_t data = 0;
if((Xpos > ST7789V_LCD_PIXEL_WIDTH) || (Ypos > ST7789V_LCD_PIXEL_HEIGHT))
{
return;
}
/* Set Cursor */
st7789v_SetCursor(Xpos, Ypos);
data = RGBCode >> 8;
LCD_IO_WriteMultipleData(&data, 1);
data = RGBCode;
LCD_IO_WriteMultipleData(&data, 1);
}
/**
* @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 st7789v_SetDisplayWindow(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
uint8_t data = 0;
/* Column addr set, 4 args, no delay: XSTART = Xpos, XEND = (Xpos + Width - 1) */
LCD_IO_WriteReg(0x2A);/* Column address set: CASET */
data = (Xpos) >> 8;
LCD_IO_WriteMultipleData(&data, 1);
data = (Xpos) & 0xFF;
LCD_IO_WriteMultipleData(&data, 1);
data = (Xpos + Width - 1) >> 8;
LCD_IO_WriteMultipleData(&data, 1);
data = (Xpos + Width - 1) & 0xFF;
LCD_IO_WriteMultipleData(&data, 1);
/* Row addr set, 4 args, no delay: YSTART = Ypos, YEND = (Ypos + Height - 1) */
LCD_IO_WriteReg(0x2B);/* Row address set: RASET */
data = (Ypos) >> 8;
LCD_IO_WriteMultipleData(&data, 1);
data = (Ypos) & 0xFF;
LCD_IO_WriteMultipleData(&data, 1);
data = (Ypos + Height - 1) >> 8;
LCD_IO_WriteMultipleData(&data, 1);
data = (Ypos + Height - 1) & 0xFF;
LCD_IO_WriteMultipleData(&data, 1);
}
/**
* @brief Draws horizontal 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 st7789v_DrawHLine(uint16_t RGBCode, uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint8_t counter = 0;
if(0 == st7789v_rotation || 2 == st7789v_rotation){
if(Xpos + Length > ST7789V_LCD_PIXEL_WIDTH) return;
/* Set Cursor */
st7789v_SetCursor(Xpos, Ypos);
for(counter = 0; counter < Length; counter++)
{
ArrayRGB[counter] = RGBCode;
}
LCD_IO_WriteMultipleData((uint8_t*)&ArrayRGB[0], Length * 2);
}
else{
if(Xpos + Length > ST7789V_LCD_PIXEL_HEIGHT) return;
/* Set Cursor */
st7789v_SetCursor(Xpos, Ypos);
for(counter = 0; counter < Length; counter++)
{
ArrayRGB[counter] = RGBCode;
}
LCD_IO_WriteMultipleData((uint8_t*)&ArrayRGB[0], Length * 2);
}
}
/**
* @brief Draws 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 st7789v_DrawVLine(uint16_t RGBCode, uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint8_t counter = 0;
if(0 == st7789v_rotation || 2 == st7789v_rotation){
if(Ypos + Length > ST7789V_LCD_PIXEL_HEIGHT) return;
for(counter = 0; counter < Length; counter++)
{
st7789v_WritePixel(Xpos, Ypos, RGBCode);
}
} else {
if(Ypos + Length > ST7789V_LCD_PIXEL_WIDTH) return;
for(counter = 0; counter < Length; counter++)
{
st7789v_WritePixel(Xpos, Ypos, RGBCode);
}
}
}
/**
* @brief Gets the LCD pixel Width.
* @param None
* @retval The Lcd Pixel Width
*/
uint16_t st7789v_GetLcdPixelWidth(void)
{
return ST7789V_LCD_PIXEL_WIDTH;
}
/**
* @brief Gets the LCD pixel Height.
* @param None
* @retval The Lcd Pixel Height
*/
uint16_t st7789v_GetLcdPixelHeight(void)
{
return ST7789V_LCD_PIXEL_HEIGHT;
}
/**
* @brief Displays a bitmap picture loaded in the internal Flash.
* @param BmpAddress: Bmp picture address in the internal Flash.
* @retval None
*/
void st7789v_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 = 0, MX = 1, MV = 0, ML = 0 */
st7789v_WriteReg(0x36, 0x40);// LCD_REG_54 0x36 /* Memory data access control: MADCTL */
/* Set Cursor */
st7789v_SetCursor(Xpos, Ypos);
LCD_IO_WriteMultipleData((uint8_t*)pbmp, size*2);
/* Set GRAM write direction and BGR = 0 */
/* Memory access control: MY = 1, MX = 1, MV = 0, ML = 0 */
st7789v_WriteReg(0x36, 0xC0);/* Memory data access control: MADCTL */
}
/**
* @}
*/
void st7789v_FillRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height, uint16_t RGBCode)
{
if ((Xpos >= st7789v_width) || (Ypos >= st7789v_height)) return;
int16_t x2 = Xpos + Width - 1, y2 = Ypos + Height - 1;
if ((x2 < 0) || (y2 < 0)) return;
// Clip right/bottom
if (x2 >= st7789v_width) Width = st7789v_width - Xpos;
if (y2 >= st7789v_height) Height = st7789v_height - Ypos;
int32_t len = (int32_t)Width * Height;
st7789v_SetDisplayWindow(Xpos, Ypos, Width, Height);
/* Prepare to write GRAM */
LCD_IO_WriteReg(0x2C);
st7789v_WriteColor(RGBCode,len);
}
void st7789v_WriteColor(uint16_t color, uint32_t len){
//#define TFT_MAX_PIXELS_AT_ONCE 32
uint16_t temp[32] ;
size_t blen = (len > 32) ? 32 : 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 st7789_SetRotation(uint8_t rotation)
{
st7789v_rotation = rotation%4;
switch(st7789v_rotation){
case 0:
/* Memory access control: MY = 0, MX = 0, MV = 0, ML = 0 */
/* */
st7789v_WriteReg(0X2A, 0x01);
st7789v_WriteReg(0X2A, 0x02);
st7789v_WriteReg(0X2B, 0x01);
#if 0
st7789v_WriteReg(0X36, 0x08);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0xEF);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0x01);
st7789v_WriteReg(0x2B, 0x3F);
#endif
st7789v_height = ST7789V_LCD_PIXEL_HEIGHT;
st7789v_width = ST7789V_LCD_PIXEL_WIDTH;
break;
case 1:
/* Memory access control: MY = 0, MX = 1, MV = 1, ML = 0 */
#if 1
st7789v_WriteReg(0X36, 0x68);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0x01);
st7789v_WriteReg(0x2A, 0x3F);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0xEF);
#endif
st7789v_height = ST7789V_LCD_PIXEL_WIDTH;
st7789v_width = ST7789V_LCD_PIXEL_HEIGHT;
break;
case 2:
/* Memory access control: MY = 1, MX = 1, MV = 0, ML = 0 */
#if 1
st7789v_WriteReg(0X36, 0xC8);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0xEF);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0x01);
st7789v_WriteReg(0x2B, 0x3F);
#endif
st7789v_height = ST7789V_LCD_PIXEL_HEIGHT;
st7789v_width = ST7789V_LCD_PIXEL_WIDTH;
break;
case 3:
/* Memory access control: MY = 1, MX = 0, MV = 1, ML = 0 */
#if 1
st7789v_WriteReg(0X36, 0xA8);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0x00);
st7789v_WriteReg(0x2A, 0x01);
st7789v_WriteReg(0x2A, 0x3F);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0x00);
st7789v_WriteReg(0x2B, 0xEF);
#endif
st7789v_height = ST7789V_LCD_PIXEL_WIDTH;
st7789v_width = ST7789V_LCD_PIXEL_HEIGHT;
break;
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/