boting ren
STM32746G-Discovery board drivers V1.0.0
Dependents: F746_SD_GraphicEqualizer_ren0620
Fork of
BSP_DISCO_F746NG
by 
ST
Diff: stm32746g_discovery_lcd.c
- Revision:
- 0:c9112f0c67e3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32746g_discovery_lcd.c Mon Sep 28 13:34:16 2015 +0000
@@ -0,0 +1,1553 @@
+/**
+ ******************************************************************************
+ * @file stm32746g_discovery_lcd.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 25-June-2015
+ * @brief This file includes the driver for Liquid Crystal Display (LCD) module
+ * mounted on STM32746G-Discovery board.
+ @verbatim
+ 1. How To use this driver:
+ --------------------------
+ - This driver is used to drive directly an LCD TFT using the LTDC controller.
+ - This driver uses timing and setting for RK043FN48H LCD.
+
+ 2. Driver description:
+ ---------------------
+ + Initialization steps:
+ o Initialize the LCD using the BSP_LCD_Init() function.
+ o Apply the Layer configuration using the BSP_LCD_LayerDefaultInit() function.
+ o Select the LCD layer to be used using the BSP_LCD_SelectLayer() function.
+ o Enable the LCD display using the BSP_LCD_DisplayOn() function.
+
+ + Options
+ o Configure and enable the color keying functionality using the
+ BSP_LCD_SetColorKeying() function.
+ o Modify in the fly the transparency and/or the frame buffer address
+ using the following functions:
+ - BSP_LCD_SetTransparency()
+ - BSP_LCD_SetLayerAddress()
+
+ + Display on LCD
+ o Clear the hole LCD using BSP_LCD_Clear() function or only one specified string
+ line using the BSP_LCD_ClearStringLine() function.
+ o Display a character on the specified line and column using the BSP_LCD_DisplayChar()
+ function or a complete string line using the BSP_LCD_DisplayStringAtLine() function.
+ o Display a string line on the specified position (x,y in pixel) and align mode
+ using the BSP_LCD_DisplayStringAtLine() function.
+ o Draw and fill a basic shapes (dot, line, rectangle, circle, ellipse, .. bitmap)
+ on LCD using the available set of functions.
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32746g_discovery_lcd.h"
+#include "fonts.h"
+/*
+#include "font24.c"
+#include "font20.c"
+#include "font16.c"
+#include "font12.c"
+#include "font8.c"
+*/
+
+/** @addtogroup BSP
+ * @{
+ */
+
+/** @addtogroup STM32746G_DISCOVERY
+ * @{
+ */
+
+/** @addtogroup STM32746G_DISCOVERY_LCD
+ * @{
+ */
+
+/** @defgroup STM32746G_DISCOVERY_LCD_Private_TypesDefinitions STM32746G_DISCOVERY_LCD Private Types Definitions
+ * @{
+ */
+/**
+ * @}
+ */
+
+/** @defgroup STM32746G_DISCOVERY_LCD_Private_Defines STM32746G_DISCOVERY LCD Private Defines
+ * @{
+ */
+#define POLY_X(Z) ((int32_t)((Points + Z)->X))
+#define POLY_Y(Z) ((int32_t)((Points + Z)->Y))
+/**
+ * @}
+ */
+
+/** @defgroup STM32746G_DISCOVERY_LCD_Private_Macros STM32746G_DISCOVERY_LCD Private Macros
+ * @{
+ */
+#define ABS(X) ((X) > 0 ? (X) : -(X))
+/**
+ * @}
+ */
+
+/** @defgroup STM32746G_DISCOVERY_LCD_Private_Variables STM32746G_DISCOVERY_LCD Private Variables
+ * @{
+ */
+static LTDC_HandleTypeDef hLtdcHandler;
+static DMA2D_HandleTypeDef hDma2dHandler;
+
+/* Default LCD configuration with LCD Layer 1 */
+static uint32_t ActiveLayer = 0;
+static LCD_DrawPropTypeDef DrawProp[MAX_LAYER_NUMBER];
+/**
+ * @}
+ */
+
+/** @defgroup STM32746G_DISCOVERY_LCD_Private_FunctionPrototypes STM32746G_DISCOVERY_LCD Private Function Prototypes
+ * @{
+ */
+static void DrawChar(uint16_t Xpos, uint16_t Ypos, const uint8_t *c);
+static void FillTriangle(uint16_t x1, uint16_t x2, uint16_t x3, uint16_t y1, uint16_t y2, uint16_t y3);
+static void LL_FillBuffer(uint32_t LayerIndex, void *pDst, uint32_t xSize, uint32_t ySize, uint32_t OffLine, uint32_t ColorIndex);
+static void LL_ConvertLineToARGB8888(void * pSrc, void *pDst, uint32_t xSize, uint32_t ColorMode);
+/**
+ * @}
+ */
+
+/** @defgroup STM32746G_DISCOVERY_LCD_Exported_Functions STM32746G_DISCOVERY_LCD Exported Functions
+ * @{
+ */
+
+/**
+ * @brief Initializes the LCD.
+ * @retval LCD state
+ */
+uint8_t BSP_LCD_Init(void)
+{
+ /* Select the used LCD */
+
+ /* The RK043FN48H LCD 480x272 is selected */
+ /* Timing Configuration */
+ hLtdcHandler.Init.HorizontalSync = (RK043FN48H_HSYNC - 1);
+ hLtdcHandler.Init.VerticalSync = (RK043FN48H_VSYNC - 1);
+ hLtdcHandler.Init.AccumulatedHBP = (RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
+ hLtdcHandler.Init.AccumulatedVBP = (RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
+ hLtdcHandler.Init.AccumulatedActiveH = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
+ hLtdcHandler.Init.AccumulatedActiveW = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
+ hLtdcHandler.Init.TotalHeigh = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP + RK043FN48H_VFP - 1);
+ hLtdcHandler.Init.TotalWidth = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP + RK043FN48H_HFP - 1);
+
+ /* LCD clock configuration */
+ BSP_LCD_ClockConfig(&hLtdcHandler, NULL);
+
+ /* Initialize the LCD pixel width and pixel height */
+ hLtdcHandler.LayerCfg->ImageWidth = RK043FN48H_WIDTH;
+ hLtdcHandler.LayerCfg->ImageHeight = RK043FN48H_HEIGHT;
+
+ /* Background value */
+ hLtdcHandler.Init.Backcolor.Blue = 0;
+ hLtdcHandler.Init.Backcolor.Green = 0;
+ hLtdcHandler.Init.Backcolor.Red = 0;
+
+ /* Polarity */
+ hLtdcHandler.Init.HSPolarity = LTDC_HSPOLARITY_AL;
+ hLtdcHandler.Init.VSPolarity = LTDC_VSPOLARITY_AL;
+ hLtdcHandler.Init.DEPolarity = LTDC_DEPOLARITY_AL;
+ hLtdcHandler.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
+ hLtdcHandler.Instance = LTDC;
+
+ if(HAL_LTDC_GetState(&hLtdcHandler) == HAL_LTDC_STATE_RESET)
+ {
+ /* Initialize the LCD Msp: this __weak function can be rewritten by the application */
+ BSP_LCD_MspInit(&hLtdcHandler, NULL);
+ }
+ HAL_LTDC_Init(&hLtdcHandler);
+
+ /* Assert display enable LCD_DISP pin */
+ HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_SET);
+
+ /* Assert backlight LCD_BL_CTRL pin */
+ HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_SET);
+
+#if !defined(DATA_IN_ExtSDRAM)
+ /* Initialize the SDRAM */
+ BSP_SDRAM_Init();
+#endif
+
+ /* Initialize the font */
+ BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
+
+ return LCD_OK;
+}
+
+/**
+ * @brief DeInitializes the LCD.
+ * @retval LCD state
+ */
+uint8_t BSP_LCD_DeInit(void)
+{
+ /* Initialize the hLtdcHandler Instance parameter */
+ hLtdcHandler.Instance = LTDC;
+
+ /* Disable LTDC block */
+ __HAL_LTDC_DISABLE(&hLtdcHandler);
+
+ /* DeInit the LTDC */
+ HAL_LTDC_DeInit(&hLtdcHandler);
+
+ /* DeInit the LTDC MSP : this __weak function can be rewritten by the application */
+ BSP_LCD_MspDeInit(&hLtdcHandler, NULL);
+
+ return LCD_OK;
+}
+
+/**
+ * @brief Gets the LCD X size.
+ * @retval Used LCD X size
+ */
+uint32_t BSP_LCD_GetXSize(void)
+{
+ return hLtdcHandler.LayerCfg[ActiveLayer].ImageWidth;
+}
+
+/**
+ * @brief Gets the LCD Y size.
+ * @retval Used LCD Y size
+ */
+uint32_t BSP_LCD_GetYSize(void)
+{
+ return hLtdcHandler.LayerCfg[ActiveLayer].ImageHeight;
+}
+
+/**
+ * @brief Set the LCD X size.
+ * @param imageWidthPixels : image width in pixels unit
+ * @retval None
+ */
+void BSP_LCD_SetXSize(uint32_t imageWidthPixels)
+{
+ hLtdcHandler.LayerCfg[ActiveLayer].ImageWidth = imageWidthPixels;
+}
+
+/**
+ * @brief Set the LCD Y size.
+ * @param imageHeightPixels : image height in lines unit
+ * @retval None
+ */
+void BSP_LCD_SetYSize(uint32_t imageHeightPixels)
+{
+ hLtdcHandler.LayerCfg[ActiveLayer].ImageHeight = imageHeightPixels;
+}
+
+/**
+ * @brief Initializes the LCD layer in ARGB8888 format (32 bits per pixel).
+ * @param LayerIndex: Layer foreground or background
+ * @param FB_Address: Layer frame buffer
+ * @retval None
+ */
+void BSP_LCD_LayerDefaultInit(uint16_t LayerIndex, uint32_t FB_Address)
+{
+ LCD_LayerCfgTypeDef layer_cfg;
+
+ /* Layer Init */
+ layer_cfg.WindowX0 = 0;
+ layer_cfg.WindowX1 = BSP_LCD_GetXSize();
+ layer_cfg.WindowY0 = 0;
+ layer_cfg.WindowY1 = BSP_LCD_GetYSize();
+ layer_cfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
+ layer_cfg.FBStartAdress = FB_Address;
+ layer_cfg.Alpha = 255;
+ layer_cfg.Alpha0 = 0;
+ layer_cfg.Backcolor.Blue = 0;
+ layer_cfg.Backcolor.Green = 0;
+ layer_cfg.Backcolor.Red = 0;
+ layer_cfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
+ layer_cfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
+ layer_cfg.ImageWidth = BSP_LCD_GetXSize();
+ layer_cfg.ImageHeight = BSP_LCD_GetYSize();
+
+ HAL_LTDC_ConfigLayer(&hLtdcHandler, &layer_cfg, LayerIndex);
+
+ DrawProp[LayerIndex].BackColor = LCD_COLOR_WHITE;
+ DrawProp[LayerIndex].pFont = &Font24;
+ DrawProp[LayerIndex].TextColor = LCD_COLOR_BLACK;
+}
+
+/**
+ * @brief Initializes the LCD layer in RGB565 format (16 bits per pixel).
+ * @param LayerIndex: Layer foreground or background
+ * @param FB_Address: Layer frame buffer
+ * @retval None
+ */
+void BSP_LCD_LayerRgb565Init(uint16_t LayerIndex, uint32_t FB_Address)
+{
+ LCD_LayerCfgTypeDef layer_cfg;
+
+ /* Layer Init */
+ layer_cfg.WindowX0 = 0;
+ layer_cfg.WindowX1 = BSP_LCD_GetXSize();
+ layer_cfg.WindowY0 = 0;
+ layer_cfg.WindowY1 = BSP_LCD_GetYSize();
+ layer_cfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
+ layer_cfg.FBStartAdress = FB_Address;
+ layer_cfg.Alpha = 255;
+ layer_cfg.Alpha0 = 0;
+ layer_cfg.Backcolor.Blue = 0;
+ layer_cfg.Backcolor.Green = 0;
+ layer_cfg.Backcolor.Red = 0;
+ layer_cfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
+ layer_cfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
+ layer_cfg.ImageWidth = BSP_LCD_GetXSize();
+ layer_cfg.ImageHeight = BSP_LCD_GetYSize();
+
+ HAL_LTDC_ConfigLayer(&hLtdcHandler, &layer_cfg, LayerIndex);
+
+ DrawProp[LayerIndex].BackColor = LCD_COLOR_WHITE;
+ DrawProp[LayerIndex].pFont = &Font24;
+ DrawProp[LayerIndex].TextColor = LCD_COLOR_BLACK;
+}
+
+/**
+ * @brief Selects the LCD Layer.
+ * @param LayerIndex: Layer foreground or background
+ * @retval None
+ */
+void BSP_LCD_SelectLayer(uint32_t LayerIndex)
+{
+ ActiveLayer = LayerIndex;
+}
+
+/**
+ * @brief Sets an LCD Layer visible
+ * @param LayerIndex: Visible Layer
+ * @param State: New state of the specified layer
+ * This parameter can be one of the following values:
+ * @arg ENABLE
+ * @arg DISABLE
+ * @retval None
+ */
+void BSP_LCD_SetLayerVisible(uint32_t LayerIndex, FunctionalState State)
+{
+ if(State == ENABLE)
+ {
+ __HAL_LTDC_LAYER_ENABLE(&hLtdcHandler, LayerIndex);
+ }
+ else
+ {
+ __HAL_LTDC_LAYER_DISABLE(&hLtdcHandler, LayerIndex);
+ }
+ __HAL_LTDC_RELOAD_CONFIG(&hLtdcHandler);
+}
+
+/**
+ * @brief Configures the transparency.
+ * @param LayerIndex: Layer foreground or background.
+ * @param Transparency: Transparency
+ * This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFF
+ * @retval None
+ */
+void BSP_LCD_SetTransparency(uint32_t LayerIndex, uint8_t Transparency)
+{
+ HAL_LTDC_SetAlpha(&hLtdcHandler, Transparency, LayerIndex);
+}
+
+/**
+ * @brief Sets an LCD layer frame buffer address.
+ * @param LayerIndex: Layer foreground or background
+ * @param Address: New LCD frame buffer value
+ * @retval None
+ */
+void BSP_LCD_SetLayerAddress(uint32_t LayerIndex, uint32_t Address)
+{
+ HAL_LTDC_SetAddress(&hLtdcHandler, Address, LayerIndex);
+}
+
+/**
+ * @brief Sets display window.
+ * @param LayerIndex: Layer index
+ * @param Xpos: LCD X position
+ * @param Ypos: LCD Y position
+ * @param Width: LCD window width
+ * @param Height: LCD window height
+ * @retval None
+ */
+void BSP_LCD_SetLayerWindow(uint16_t LayerIndex, uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
+{
+ /* Reconfigure the layer size */
+ HAL_LTDC_SetWindowSize(&hLtdcHandler, Width, Height, LayerIndex);
+
+ /* Reconfigure the layer position */
+ HAL_LTDC_SetWindowPosition(&hLtdcHandler, Xpos, Ypos, LayerIndex);
+}
+
+/**
+ * @brief Configures and sets the color keying.
+ * @param LayerIndex: Layer foreground or background
+ * @param RGBValue: Color reference
+ * @retval None
+ */
+void BSP_LCD_SetColorKeying(uint32_t LayerIndex, uint32_t RGBValue)
+{
+ /* Configure and Enable the color Keying for LCD Layer */
+ HAL_LTDC_ConfigColorKeying(&hLtdcHandler, RGBValue, LayerIndex);
+ HAL_LTDC_EnableColorKeying(&hLtdcHandler, LayerIndex);
+}
+
+/**
+ * @brief Disables the color keying.
+ * @param LayerIndex: Layer foreground or background
+ * @retval None
+ */
+void BSP_LCD_ResetColorKeying(uint32_t LayerIndex)
+{
+ /* Disable the color Keying for LCD Layer */
+ HAL_LTDC_DisableColorKeying(&hLtdcHandler, LayerIndex);
+}
+
+/**
+ * @brief Sets the LCD text color.
+ * @param Color: Text color code ARGB(8-8-8-8)
+ * @retval None
+ */
+void BSP_LCD_SetTextColor(uint32_t Color)
+{
+ DrawProp[ActiveLayer].TextColor = Color;
+}
+
+/**
+ * @brief Gets the LCD text color.
+ * @retval Used text color.
+ */
+uint32_t BSP_LCD_GetTextColor(void)
+{
+ return DrawProp[ActiveLayer].TextColor;
+}
+
+/**
+ * @brief Sets the LCD background color.
+ * @param Color: Layer background color code ARGB(8-8-8-8)
+ * @retval None
+ */
+void BSP_LCD_SetBackColor(uint32_t Color)
+{
+ DrawProp[ActiveLayer].BackColor = Color;
+}
+
+/**
+ * @brief Gets the LCD background color.
+ * @retval Used background colour
+ */
+uint32_t BSP_LCD_GetBackColor(void)
+{
+ return DrawProp[ActiveLayer].BackColor;
+}
+
+/**
+ * @brief Sets the LCD text font.
+ * @param fonts: Layer font to be used
+ * @retval None
+ */
+void BSP_LCD_SetFont(sFONT *fonts)
+{
+ DrawProp[ActiveLayer].pFont = fonts;
+}
+
+/**
+ * @brief Gets the LCD text font.
+ * @retval Used layer font
+ */
+sFONT *BSP_LCD_GetFont(void)
+{
+ return DrawProp[ActiveLayer].pFont;
+}
+
+/**
+ * @brief Reads an LCD pixel.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @retval RGB pixel color
+ */
+uint32_t BSP_LCD_ReadPixel(uint16_t Xpos, uint16_t Ypos)
+{
+ uint32_t ret = 0;
+
+ if(hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888)
+ {
+ /* Read data value from SDRAM memory */
+ ret = *(__IO uint32_t*) (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos)));
+ }
+ else if(hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB888)
+ {
+ /* Read data value from SDRAM memory */
+ ret = (*(__IO uint32_t*) (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos))) & 0x00FFFFFF);
+ }
+ else if((hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565) || \
+ (hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \
+ (hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_AL88))
+ {
+ /* Read data value from SDRAM memory */
+ ret = *(__IO uint16_t*) (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos)));
+ }
+ else
+ {
+ /* Read data value from SDRAM memory */
+ ret = *(__IO uint8_t*) (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos)));
+ }
+
+ return ret;
+}
+
+/**
+ * @brief Clears the hole LCD.
+ * @param Color: Color of the background
+ * @retval None
+ */
+void BSP_LCD_Clear(uint32_t Color)
+{
+ /* Clear the LCD */
+ LL_FillBuffer(ActiveLayer, (uint32_t *)(hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress), BSP_LCD_GetXSize(), BSP_LCD_GetYSize(), 0, Color);
+}
+
+/**
+ * @brief Clears the selected line.
+ * @param Line: Line to be cleared
+ * @retval None
+ */
+void BSP_LCD_ClearStringLine(uint32_t Line)
+{
+ uint32_t color_backup = DrawProp[ActiveLayer].TextColor;
+ DrawProp[ActiveLayer].TextColor = DrawProp[ActiveLayer].BackColor;
+
+ /* Draw rectangle with background color */
+ BSP_LCD_FillRect(0, (Line * DrawProp[ActiveLayer].pFont->Height), BSP_LCD_GetXSize(), DrawProp[ActiveLayer].pFont->Height);
+
+ DrawProp[ActiveLayer].TextColor = color_backup;
+ BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor);
+}
+
+/**
+ * @brief Displays one character.
+ * @param Xpos: Start column address
+ * @param Ypos: Line where to display the character shape.
+ * @param Ascii: Character ascii code
+ * This parameter must be a number between Min_Data = 0x20 and Max_Data = 0x7E
+ * @retval None
+ */
+void BSP_LCD_DisplayChar(uint16_t Xpos, uint16_t Ypos, uint8_t Ascii)
+{
+ DrawChar(Xpos, Ypos, &DrawProp[ActiveLayer].pFont->table[(Ascii-' ') *\
+ DrawProp[ActiveLayer].pFont->Height * ((DrawProp[ActiveLayer].pFont->Width + 7) / 8)]);
+}
+
+/**
+ * @brief Displays characters on the LCD.
+ * @param Xpos: X position (in pixel)
+ * @param Ypos: Y position (in pixel)
+ * @param Text: Pointer to string to display on LCD
+ * @param Mode: Display mode
+ * This parameter can be one of the following values:
+ * @arg CENTER_MODE
+ * @arg RIGHT_MODE
+ * @arg LEFT_MODE
+ * @retval None
+ */
+void BSP_LCD_DisplayStringAt(uint16_t Xpos, uint16_t Ypos, uint8_t *Text, Text_AlignModeTypdef Mode)
+{
+ uint16_t ref_column = 1, i = 0;
+ uint32_t size = 0, xsize = 0;
+ uint8_t *ptr = Text;
+
+ /* Get the text size */
+ while (*ptr++) size ++ ;
+
+ /* Characters number per line */
+ xsize = (BSP_LCD_GetXSize()/DrawProp[ActiveLayer].pFont->Width);
+
+ switch (Mode)
+ {
+ case CENTER_MODE:
+ {
+ ref_column = Xpos + ((xsize - size)* DrawProp[ActiveLayer].pFont->Width) / 2;
+ break;
+ }
+ case LEFT_MODE:
+ {
+ ref_column = Xpos;
+ break;
+ }
+ case RIGHT_MODE:
+ {
+ ref_column = - Xpos + ((xsize - size)*DrawProp[ActiveLayer].pFont->Width);
+ break;
+ }
+ default:
+ {
+ ref_column = Xpos;
+ break;
+ }
+ }
+
+ /* Check that the Start column is located in the screen */
+ if ((ref_column < 1) || (ref_column >= 0x8000))
+ {
+ ref_column = 1;
+ }
+
+ /* Send the string character by character on LCD */
+ while ((*Text != 0) & (((BSP_LCD_GetXSize() - (i*DrawProp[ActiveLayer].pFont->Width)) & 0xFFFF) >= DrawProp[ActiveLayer].pFont->Width))
+ {
+ /* Display one character on LCD */
+ BSP_LCD_DisplayChar(ref_column, Ypos, *Text);
+ /* Decrement the column position by 16 */
+ ref_column += DrawProp[ActiveLayer].pFont->Width;
+ /* Point on the next character */
+ Text++;
+ i++;
+ }
+}
+
+/**
+ * @brief Displays a maximum of 60 characters on the LCD.
+ * @param Line: Line where to display the character shape
+ * @param ptr: Pointer to string to display on LCD
+ * @retval None
+ */
+void BSP_LCD_DisplayStringAtLine(uint16_t Line, uint8_t *ptr)
+{
+ BSP_LCD_DisplayStringAt(0, LINE(Line), ptr, LEFT_MODE);
+}
+
+/**
+ * @brief Draws an horizontal line.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param Length: Line length
+ * @retval None
+ */
+void BSP_LCD_DrawHLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length)
+{
+ uint32_t Xaddress = 0;
+
+ /* Get the line address */
+ if(hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565)
+ { /* RGB565 format */
+ Xaddress = (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress) + 2*(BSP_LCD_GetXSize()*Ypos + Xpos);
+ }
+ else
+ { /* ARGB8888 format */
+ Xaddress = (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos);
+ }
+
+ /* Write line */
+ LL_FillBuffer(ActiveLayer, (uint32_t *)Xaddress, Length, 1, 0, DrawProp[ActiveLayer].TextColor);
+}
+
+/**
+ * @brief Draws a vertical line.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param Length: Line length
+ * @retval None
+ */
+void BSP_LCD_DrawVLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length)
+{
+ uint32_t Xaddress = 0;
+
+ /* Get the line address */
+ if(hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565)
+ { /* RGB565 format */
+ Xaddress = (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress) + 2*(BSP_LCD_GetXSize()*Ypos + Xpos);
+ }
+ else
+ { /* ARGB8888 format */
+ Xaddress = (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos);
+ }
+
+ /* Write line */
+ LL_FillBuffer(ActiveLayer, (uint32_t *)Xaddress, 1, Length, (BSP_LCD_GetXSize() - 1), DrawProp[ActiveLayer].TextColor);
+}
+
+/**
+ * @brief Draws an uni-line (between two points).
+ * @param x1: Point 1 X position
+ * @param y1: Point 1 Y position
+ * @param x2: Point 2 X position
+ * @param y2: Point 2 Y position
+ * @retval None
+ */
+void BSP_LCD_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
+{
+ int16_t deltax = 0, deltay = 0, x = 0, y = 0, xinc1 = 0, xinc2 = 0,
+ yinc1 = 0, yinc2 = 0, den = 0, num = 0, num_add = 0, num_pixels = 0,
+ curpixel = 0;
+
+ deltax = ABS(x2 - x1); /* The difference between the x's */
+ deltay = ABS(y2 - y1); /* The difference between the y's */
+ x = x1; /* Start x off at the first pixel */
+ y = y1; /* Start y off at the first pixel */
+
+ if (x2 >= x1) /* The x-values are increasing */
+ {
+ xinc1 = 1;
+ xinc2 = 1;
+ }
+ else /* The x-values are decreasing */
+ {
+ xinc1 = -1;
+ xinc2 = -1;
+ }
+
+ if (y2 >= y1) /* The y-values are increasing */
+ {
+ yinc1 = 1;
+ yinc2 = 1;
+ }
+ else /* The y-values are decreasing */
+ {
+ yinc1 = -1;
+ yinc2 = -1;
+ }
+
+ if (deltax >= deltay) /* There is at least one x-value for every y-value */
+ {
+ xinc1 = 0; /* Don't change the x when numerator >= denominator */
+ yinc2 = 0; /* Don't change the y for every iteration */
+ den = deltax;
+ num = deltax / 2;
+ num_add = deltay;
+ num_pixels = deltax; /* There are more x-values than y-values */
+ }
+ else /* There is at least one y-value for every x-value */
+ {
+ xinc2 = 0; /* Don't change the x for every iteration */
+ yinc1 = 0; /* Don't change the y when numerator >= denominator */
+ den = deltay;
+ num = deltay / 2;
+ num_add = deltax;
+ num_pixels = deltay; /* There are more y-values than x-values */
+ }
+
+ for (curpixel = 0; curpixel <= num_pixels; curpixel++)
+ {
+ BSP_LCD_DrawPixel(x, y, DrawProp[ActiveLayer].TextColor); /* Draw the current pixel */
+ num += num_add; /* Increase the numerator by the top of the fraction */
+ if (num >= den) /* Check if numerator >= denominator */
+ {
+ num -= den; /* Calculate the new numerator value */
+ x += xinc1; /* Change the x as appropriate */
+ y += yinc1; /* Change the y as appropriate */
+ }
+ x += xinc2; /* Change the x as appropriate */
+ y += yinc2; /* Change the y as appropriate */
+ }
+}
+
+/**
+ * @brief Draws a rectangle.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param Width: Rectangle width
+ * @param Height: Rectangle height
+ * @retval None
+ */
+void BSP_LCD_DrawRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
+{
+ /* Draw horizontal lines */
+ BSP_LCD_DrawHLine(Xpos, Ypos, Width);
+ BSP_LCD_DrawHLine(Xpos, (Ypos+ Height), Width);
+
+ /* Draw vertical lines */
+ BSP_LCD_DrawVLine(Xpos, Ypos, Height);
+ BSP_LCD_DrawVLine((Xpos + Width), Ypos, Height);
+}
+
+/**
+ * @brief Draws a circle.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param Radius: Circle radius
+ * @retval None
+ */
+void BSP_LCD_DrawCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius)
+{
+ int32_t decision; /* Decision Variable */
+ uint32_t current_x; /* Current X Value */
+ uint32_t current_y; /* Current Y Value */
+
+ decision = 3 - (Radius << 1);
+ current_x = 0;
+ current_y = Radius;
+
+ while (current_x <= current_y)
+ {
+ BSP_LCD_DrawPixel((Xpos + current_x), (Ypos - current_y), DrawProp[ActiveLayer].TextColor);
+
+ BSP_LCD_DrawPixel((Xpos - current_x), (Ypos - current_y), DrawProp[ActiveLayer].TextColor);
+
+ BSP_LCD_DrawPixel((Xpos + current_y), (Ypos - current_x), DrawProp[ActiveLayer].TextColor);
+
+ BSP_LCD_DrawPixel((Xpos - current_y), (Ypos - current_x), DrawProp[ActiveLayer].TextColor);
+
+ BSP_LCD_DrawPixel((Xpos + current_x), (Ypos + current_y), DrawProp[ActiveLayer].TextColor);
+
+ BSP_LCD_DrawPixel((Xpos - current_x), (Ypos + current_y), DrawProp[ActiveLayer].TextColor);
+
+ BSP_LCD_DrawPixel((Xpos + current_y), (Ypos + current_x), DrawProp[ActiveLayer].TextColor);
+
+ BSP_LCD_DrawPixel((Xpos - current_y), (Ypos + current_x), DrawProp[ActiveLayer].TextColor);
+
+ if (decision < 0)
+ {
+ decision += (current_x << 2) + 6;
+ }
+ else
+ {
+ decision += ((current_x - current_y) << 2) + 10;
+ current_y--;
+ }
+ current_x++;
+ }
+}
+
+/**
+ * @brief Draws an poly-line (between many points).
+ * @param Points: Pointer to the points array
+ * @param PointCount: Number of points
+ * @retval None
+ */
+void BSP_LCD_DrawPolygon(pPoint Points, uint16_t PointCount)
+{
+ int16_t x = 0, y = 0;
+
+ if(PointCount < 2)
+ {
+ return;
+ }
+
+ BSP_LCD_DrawLine(Points->X, Points->Y, (Points+PointCount-1)->X, (Points+PointCount-1)->Y);
+
+ while(--PointCount)
+ {
+ x = Points->X;
+ y = Points->Y;
+ Points++;
+ BSP_LCD_DrawLine(x, y, Points->X, Points->Y);
+ }
+}
+
+/**
+ * @brief Draws an ellipse on LCD.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param XRadius: Ellipse X radius
+ * @param YRadius: Ellipse Y radius
+ * @retval None
+ */
+void BSP_LCD_DrawEllipse(int Xpos, int Ypos, int XRadius, int YRadius)
+{
+ int x = 0, y = -YRadius, err = 2-2*XRadius, e2;
+ float k = 0, rad1 = 0, rad2 = 0;
+
+ rad1 = XRadius;
+ rad2 = YRadius;
+
+ k = (float)(rad2/rad1);
+
+ do {
+ BSP_LCD_DrawPixel((Xpos-(uint16_t)(x/k)), (Ypos+y), DrawProp[ActiveLayer].TextColor);
+ BSP_LCD_DrawPixel((Xpos+(uint16_t)(x/k)), (Ypos+y), DrawProp[ActiveLayer].TextColor);
+ BSP_LCD_DrawPixel((Xpos+(uint16_t)(x/k)), (Ypos-y), DrawProp[ActiveLayer].TextColor);
+ BSP_LCD_DrawPixel((Xpos-(uint16_t)(x/k)), (Ypos-y), DrawProp[ActiveLayer].TextColor);
+
+ e2 = err;
+ if (e2 <= x) {
+ err += ++x*2+1;
+ if (-y == x && e2 <= y) e2 = 0;
+ }
+ if (e2 > y) err += ++y*2+1;
+ }
+ while (y <= 0);
+}
+
+/**
+ * @brief Draws a pixel on LCD.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param RGB_Code: Pixel color in ARGB mode (8-8-8-8)
+ * @retval None
+ */
+void BSP_LCD_DrawPixel(uint16_t Xpos, uint16_t Ypos, uint32_t RGB_Code)
+{
+ /* Write data value to all SDRAM memory */
+ if(hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565)
+ { /* RGB565 format */
+ *(__IO uint16_t*) (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos))) = (uint16_t)RGB_Code;
+ }
+ else
+ { /* ARGB8888 format */
+ *(__IO uint32_t*) (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos))) = RGB_Code;
+ }
+}
+
+/**
+ * @brief Draws a bitmap picture loaded in the internal Flash in ARGB888 format (32 bits per pixel).
+ * @param Xpos: Bmp X position in the LCD
+ * @param Ypos: Bmp Y position in the LCD
+ * @param pbmp: Pointer to Bmp picture address in the internal Flash
+ * @retval None
+ */
+void BSP_LCD_DrawBitmap(uint32_t Xpos, uint32_t Ypos, uint8_t *pbmp)
+{
+ uint32_t index = 0, width = 0, height = 0, bit_pixel = 0;
+ uint32_t address;
+ uint32_t input_color_mode = 0;
+
+ /* Get bitmap data address offset */
+ index = *(__IO uint16_t *) (pbmp + 10);
+ index |= (*(__IO uint16_t *) (pbmp + 12)) << 16;
+
+ /* Read bitmap width */
+ width = *(uint16_t *) (pbmp + 18);
+ width |= (*(uint16_t *) (pbmp + 20)) << 16;
+
+ /* Read bitmap height */
+ height = *(uint16_t *) (pbmp + 22);
+ height |= (*(uint16_t *) (pbmp + 24)) << 16;
+
+ /* Read bit/pixel */
+ bit_pixel = *(uint16_t *) (pbmp + 28);
+
+ /* Set the address */
+ address = hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (((BSP_LCD_GetXSize()*Ypos) + Xpos)*(4));
+
+ /* Get the layer pixel format */
+ if ((bit_pixel/8) == 4)
+ {
+ input_color_mode = CM_ARGB8888;
+ }
+ else if ((bit_pixel/8) == 2)
+ {
+ input_color_mode = CM_RGB565;
+ }
+ else
+ {
+ input_color_mode = CM_RGB888;
+ }
+
+ /* Bypass the bitmap header */
+ pbmp += (index + (width * (height - 1) * (bit_pixel/8)));
+
+ /* Convert picture to ARGB8888 pixel format */
+ for(index=0; index < height; index++)
+ {
+ /* Pixel format conversion */
+ LL_ConvertLineToARGB8888((uint32_t *)pbmp, (uint32_t *)address, width, input_color_mode);
+
+ /* Increment the source and destination buffers */
+ address+= (BSP_LCD_GetXSize()*4);
+ pbmp -= width*(bit_pixel/8);
+ }
+}
+
+/**
+ * @brief Draws a full rectangle.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param Width: Rectangle width
+ * @param Height: Rectangle height
+ * @retval None
+ */
+void BSP_LCD_FillRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
+{
+ uint32_t x_address = 0;
+
+ /* Set the text color */
+ BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor);
+
+ /* Get the rectangle start address */
+ if(hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565)
+ { /* RGB565 format */
+ x_address = (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress) + 2*(BSP_LCD_GetXSize()*Ypos + Xpos);
+ }
+ else
+ { /* ARGB8888 format */
+ x_address = (hLtdcHandler.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos);
+ }
+ /* Fill the rectangle */
+ LL_FillBuffer(ActiveLayer, (uint32_t *)x_address, Width, Height, (BSP_LCD_GetXSize() - Width), DrawProp[ActiveLayer].TextColor);
+}
+
+/**
+ * @brief Draws a full circle.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param Radius: Circle radius
+ * @retval None
+ */
+void BSP_LCD_FillCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius)
+{
+ int32_t decision; /* Decision Variable */
+ uint32_t current_x; /* Current X Value */
+ uint32_t current_y; /* Current Y Value */
+
+ decision = 3 - (Radius << 1);
+
+ current_x = 0;
+ current_y = Radius;
+
+ BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor);
+
+ while (current_x <= current_y)
+ {
+ if(current_y > 0)
+ {
+ BSP_LCD_DrawHLine(Xpos - current_y, Ypos + current_x, 2*current_y);
+ BSP_LCD_DrawHLine(Xpos - current_y, Ypos - current_x, 2*current_y);
+ }
+
+ if(current_x > 0)
+ {
+ BSP_LCD_DrawHLine(Xpos - current_x, Ypos - current_y, 2*current_x);
+ BSP_LCD_DrawHLine(Xpos - current_x, Ypos + current_y, 2*current_x);
+ }
+ if (decision < 0)
+ {
+ decision += (current_x << 2) + 6;
+ }
+ else
+ {
+ decision += ((current_x - current_y) << 2) + 10;
+ current_y--;
+ }
+ current_x++;
+ }
+
+ BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor);
+ BSP_LCD_DrawCircle(Xpos, Ypos, Radius);
+}
+
+/**
+ * @brief Draws a full poly-line (between many points).
+ * @param Points: Pointer to the points array
+ * @param PointCount: Number of points
+ * @retval None
+ */
+void BSP_LCD_FillPolygon(pPoint Points, uint16_t PointCount)
+{
+ int16_t X = 0, Y = 0, X2 = 0, Y2 = 0, X_center = 0, Y_center = 0, X_first = 0, Y_first = 0, pixelX = 0, pixelY = 0, counter = 0;
+ uint16_t image_left = 0, image_right = 0, image_top = 0, image_bottom = 0;
+
+ image_left = image_right = Points->X;
+ image_top= image_bottom = Points->Y;
+
+ for(counter = 1; counter < PointCount; counter++)
+ {
+ pixelX = POLY_X(counter);
+ if(pixelX < image_left)
+ {
+ image_left = pixelX;
+ }
+ if(pixelX > image_right)
+ {
+ image_right = pixelX;
+ }
+
+ pixelY = POLY_Y(counter);
+ if(pixelY < image_top)
+ {
+ image_top = pixelY;
+ }
+ if(pixelY > image_bottom)
+ {
+ image_bottom = pixelY;
+ }
+ }
+
+ if(PointCount < 2)
+ {
+ return;
+ }
+
+ X_center = (image_left + image_right)/2;
+ Y_center = (image_bottom + image_top)/2;
+
+ X_first = Points->X;
+ Y_first = Points->Y;
+
+ while(--PointCount)
+ {
+ X = Points->X;
+ Y = Points->Y;
+ Points++;
+ X2 = Points->X;
+ Y2 = Points->Y;
+
+ FillTriangle(X, X2, X_center, Y, Y2, Y_center);
+ FillTriangle(X, X_center, X2, Y, Y_center, Y2);
+ FillTriangle(X_center, X2, X, Y_center, Y2, Y);
+ }
+
+ FillTriangle(X_first, X2, X_center, Y_first, Y2, Y_center);
+ FillTriangle(X_first, X_center, X2, Y_first, Y_center, Y2);
+ FillTriangle(X_center, X2, X_first, Y_center, Y2, Y_first);
+}
+
+/**
+ * @brief Draws a full ellipse.
+ * @param Xpos: X position
+ * @param Ypos: Y position
+ * @param XRadius: Ellipse X radius
+ * @param YRadius: Ellipse Y radius
+ * @retval None
+ */
+void BSP_LCD_FillEllipse(int Xpos, int Ypos, int XRadius, int YRadius)
+{
+ int x = 0, y = -YRadius, err = 2-2*XRadius, e2;
+ float k = 0, rad1 = 0, rad2 = 0;
+
+ rad1 = XRadius;
+ rad2 = YRadius;
+
+ k = (float)(rad2/rad1);
+
+ do
+ {
+ BSP_LCD_DrawHLine((Xpos-(uint16_t)(x/k)), (Ypos+y), (2*(uint16_t)(x/k) + 1));
+ BSP_LCD_DrawHLine((Xpos-(uint16_t)(x/k)), (Ypos-y), (2*(uint16_t)(x/k) + 1));
+
+ e2 = err;
+ if (e2 <= x)
+ {
+ err += ++x*2+1;
+ if (-y == x && e2 <= y) e2 = 0;
+ }
+ if (e2 > y) err += ++y*2+1;
+ }
+ while (y <= 0);
+}
+
+/**
+ * @brief Enables the display.
+ * @retval None
+ */
+void BSP_LCD_DisplayOn(void)
+{
+ /* Display On */
+ __HAL_LTDC_ENABLE(&hLtdcHandler);
+ HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_SET); /* Assert LCD_DISP pin */
+ HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_SET); /* Assert LCD_BL_CTRL pin */
+}
+
+/**
+ * @brief Disables the display.
+ * @retval None
+ */
+void BSP_LCD_DisplayOff(void)
+{
+ /* Display Off */
+ __HAL_LTDC_DISABLE(&hLtdcHandler);
+ HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_RESET); /* De-assert LCD_DISP pin */
+ HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_RESET);/* De-assert LCD_BL_CTRL pin */
+}
+
+/**
+ * @brief Initializes the LTDC MSP.
+ * @param hltdc: LTDC handle
+ * @param Params
+ * @retval None
+ */
+__weak void BSP_LCD_MspInit(LTDC_HandleTypeDef *hltdc, void *Params)
+{
+ GPIO_InitTypeDef gpio_init_structure;
+
+ /* Enable the LTDC and DMA2D clocks */
+ __HAL_RCC_LTDC_CLK_ENABLE();
+ __HAL_RCC_DMA2D_CLK_ENABLE();
+
+ /* Enable GPIOs clock */
+ __HAL_RCC_GPIOE_CLK_ENABLE();
+ __HAL_RCC_GPIOG_CLK_ENABLE();
+ __HAL_RCC_GPIOI_CLK_ENABLE();
+ __HAL_RCC_GPIOJ_CLK_ENABLE();
+ __HAL_RCC_GPIOK_CLK_ENABLE();
+ LCD_DISP_GPIO_CLK_ENABLE();
+ LCD_BL_CTRL_GPIO_CLK_ENABLE();
+
+ /*** LTDC Pins configuration ***/
+ /* GPIOE configuration */
+ gpio_init_structure.Pin = GPIO_PIN_4;
+ gpio_init_structure.Mode = GPIO_MODE_AF_PP;
+ gpio_init_structure.Pull = GPIO_NOPULL;
+ gpio_init_structure.Speed = GPIO_SPEED_FAST;
+ gpio_init_structure.Alternate = GPIO_AF14_LTDC;
+ HAL_GPIO_Init(GPIOE, &gpio_init_structure);
+
+ /* GPIOG configuration */
+ gpio_init_structure.Pin = GPIO_PIN_12;
+ gpio_init_structure.Mode = GPIO_MODE_AF_PP;
+ gpio_init_structure.Alternate = GPIO_AF9_LTDC;
+ HAL_GPIO_Init(GPIOG, &gpio_init_structure);
+
+ /* GPIOI LTDC alternate configuration */
+ gpio_init_structure.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | \
+ GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
+ gpio_init_structure.Mode = GPIO_MODE_AF_PP;
+ gpio_init_structure.Alternate = GPIO_AF14_LTDC;
+ HAL_GPIO_Init(GPIOI, &gpio_init_structure);
+
+ /* GPIOJ configuration */
+ gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | \
+ GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7 | \
+ GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | \
+ GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
+ gpio_init_structure.Mode = GPIO_MODE_AF_PP;
+ gpio_init_structure.Alternate = GPIO_AF14_LTDC;
+ HAL_GPIO_Init(GPIOJ, &gpio_init_structure);
+
+ /* GPIOK configuration */
+ gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_4 | \
+ GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
+ gpio_init_structure.Mode = GPIO_MODE_AF_PP;
+ gpio_init_structure.Alternate = GPIO_AF14_LTDC;
+ HAL_GPIO_Init(GPIOK, &gpio_init_structure);
+
+ /* LCD_DISP GPIO configuration */
+ gpio_init_structure.Pin = LCD_DISP_PIN; /* LCD_DISP pin has to be manually controlled */
+ gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
+ HAL_GPIO_Init(LCD_DISP_GPIO_PORT, &gpio_init_structure);
+
+ /* LCD_BL_CTRL GPIO configuration */
+ gpio_init_structure.Pin = LCD_BL_CTRL_PIN; /* LCD_BL_CTRL pin has to be manually controlled */
+ gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
+ HAL_GPIO_Init(LCD_BL_CTRL_GPIO_PORT, &gpio_init_structure);
+}
+
+/**
+ * @brief DeInitializes BSP_LCD MSP.
+ * @param hltdc: LTDC handle
+ * @param Params
+ * @retval None
+ */
+__weak void BSP_LCD_MspDeInit(LTDC_HandleTypeDef *hltdc, void *Params)
+{
+ GPIO_InitTypeDef gpio_init_structure;
+
+ /* Disable LTDC block */
+ __HAL_LTDC_DISABLE(hltdc);
+
+ /* LTDC Pins deactivation */
+
+ /* GPIOE deactivation */
+ gpio_init_structure.Pin = GPIO_PIN_4;
+ HAL_GPIO_DeInit(GPIOE, gpio_init_structure.Pin);
+
+ /* GPIOG deactivation */
+ gpio_init_structure.Pin = GPIO_PIN_12;
+ HAL_GPIO_DeInit(GPIOG, gpio_init_structure.Pin);
+
+ /* GPIOI deactivation */
+ gpio_init_structure.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_12 | \
+ GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
+ HAL_GPIO_DeInit(GPIOI, gpio_init_structure.Pin);
+
+ /* GPIOJ deactivation */
+ gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | \
+ GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7 | \
+ GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | \
+ GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
+ HAL_GPIO_DeInit(GPIOJ, gpio_init_structure.Pin);
+
+ /* GPIOK deactivation */
+ gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_4 | \
+ GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
+ HAL_GPIO_DeInit(GPIOK, gpio_init_structure.Pin);
+
+ /* Disable LTDC clock */
+ __HAL_RCC_LTDC_CLK_DISABLE();
+
+ /* GPIO pins clock can be shut down in the application
+ by surcharging this __weak function */
+}
+
+/**
+ * @brief Clock Config.
+ * @param hltdc: LTDC handle
+ * @param Params
+ * @note This API is called by BSP_LCD_Init()
+ * Being __weak it can be overwritten by the application
+ * @retval None
+ */
+__weak void BSP_LCD_ClockConfig(LTDC_HandleTypeDef *hltdc, void *Params)
+{
+ static RCC_PeriphCLKInitTypeDef periph_clk_init_struct;
+
+ /* RK043FN48H LCD clock configuration */
+ /* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
+ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 192 Mhz */
+ /* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 192/5 = 38.4 Mhz */
+ /* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_4 = 38.4/4 = 9.6Mhz */
+ periph_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
+ periph_clk_init_struct.PLLSAI.PLLSAIN = 192;
+ periph_clk_init_struct.PLLSAI.PLLSAIR = RK043FN48H_FREQUENCY_DIVIDER;
+ periph_clk_init_struct.PLLSAIDivR = RCC_PLLSAIDIVR_4;
+ HAL_RCCEx_PeriphCLKConfig(&periph_clk_init_struct);
+}
+
+
+/*******************************************************************************
+ Static Functions
+*******************************************************************************/
+
+/**
+ * @brief Draws a character on LCD.
+ * @param Xpos: Line where to display the character shape
+ * @param Ypos: Start column address
+ * @param c: Pointer to the character data
+ * @retval None
+ */
+static void DrawChar(uint16_t Xpos, uint16_t Ypos, const uint8_t *c)
+{
+ uint32_t i = 0, j = 0;
+ uint16_t height, width;
+ uint8_t offset;
+ uint8_t *pchar;
+ uint32_t line;
+
+ height = DrawProp[ActiveLayer].pFont->Height;
+ width = DrawProp[ActiveLayer].pFont->Width;
+
+ offset = 8 *((width + 7)/8) - width ;
+
+ for(i = 0; i < height; i++)
+ {
+ pchar = ((uint8_t *)c + (width + 7)/8 * i);
+
+ switch(((width + 7)/8))
+ {
+
+ case 1:
+ line = pchar[0];
+ break;
+
+ case 2:
+ line = (pchar[0]<< 8) | pchar[1];
+ break;
+
+ case 3:
+ default:
+ line = (pchar[0]<< 16) | (pchar[1]<< 8) | pchar[2];
+ break;
+ }
+
+ for (j = 0; j < width; j++)
+ {
+ if(line & (1 << (width- j + offset- 1)))
+ {
+ BSP_LCD_DrawPixel((Xpos + j), Ypos, DrawProp[ActiveLayer].TextColor);
+ }
+ else
+ {
+ BSP_LCD_DrawPixel((Xpos + j), Ypos, DrawProp[ActiveLayer].BackColor);
+ }
+ }
+ Ypos++;
+ }
+}
+
+/**
+ * @brief Fills a triangle (between 3 points).
+ * @param x1: Point 1 X position
+ * @param y1: Point 1 Y position
+ * @param x2: Point 2 X position
+ * @param y2: Point 2 Y position
+ * @param x3: Point 3 X position
+ * @param y3: Point 3 Y position
+ * @retval None
+ */
+static void FillTriangle(uint16_t x1, uint16_t x2, uint16_t x3, uint16_t y1, uint16_t y2, uint16_t y3)
+{
+ int16_t deltax = 0, deltay = 0, x = 0, y = 0, xinc1 = 0, xinc2 = 0,
+ yinc1 = 0, yinc2 = 0, den = 0, num = 0, num_add = 0, num_pixels = 0,
+ curpixel = 0;
+
+ deltax = ABS(x2 - x1); /* The difference between the x's */
+ deltay = ABS(y2 - y1); /* The difference between the y's */
+ x = x1; /* Start x off at the first pixel */
+ y = y1; /* Start y off at the first pixel */
+
+ if (x2 >= x1) /* The x-values are increasing */
+ {
+ xinc1 = 1;
+ xinc2 = 1;
+ }
+ else /* The x-values are decreasing */
+ {
+ xinc1 = -1;
+ xinc2 = -1;
+ }
+
+ if (y2 >= y1) /* The y-values are increasing */
+ {
+ yinc1 = 1;
+ yinc2 = 1;
+ }
+ else /* The y-values are decreasing */
+ {
+ yinc1 = -1;
+ yinc2 = -1;
+ }
+
+ if (deltax >= deltay) /* There is at least one x-value for every y-value */
+ {
+ xinc1 = 0; /* Don't change the x when numerator >= denominator */
+ yinc2 = 0; /* Don't change the y for every iteration */
+ den = deltax;
+ num = deltax / 2;
+ num_add = deltay;
+ num_pixels = deltax; /* There are more x-values than y-values */
+ }
+ else /* There is at least one y-value for every x-value */
+ {
+ xinc2 = 0; /* Don't change the x for every iteration */
+ yinc1 = 0; /* Don't change the y when numerator >= denominator */
+ den = deltay;
+ num = deltay / 2;
+ num_add = deltax;
+ num_pixels = deltay; /* There are more y-values than x-values */
+ }
+
+ for (curpixel = 0; curpixel <= num_pixels; curpixel++)
+ {
+ BSP_LCD_DrawLine(x, y, x3, y3);
+
+ num += num_add; /* Increase the numerator by the top of the fraction */
+ if (num >= den) /* Check if numerator >= denominator */
+ {
+ num -= den; /* Calculate the new numerator value */
+ x += xinc1; /* Change the x as appropriate */
+ y += yinc1; /* Change the y as appropriate */
+ }
+ x += xinc2; /* Change the x as appropriate */
+ y += yinc2; /* Change the y as appropriate */
+ }
+}
+
+/**
+ * @brief Fills a buffer.
+ * @param LayerIndex: Layer index
+ * @param pDst: Pointer to destination buffer
+ * @param xSize: Buffer width
+ * @param ySize: Buffer height
+ * @param OffLine: Offset
+ * @param ColorIndex: Color index
+ * @retval None
+ */
+static void LL_FillBuffer(uint32_t LayerIndex, void *pDst, uint32_t xSize, uint32_t ySize, uint32_t OffLine, uint32_t ColorIndex)
+{
+ /* Register to memory mode with ARGB8888 as color Mode */
+ hDma2dHandler.Init.Mode = DMA2D_R2M;
+ if(hLtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565)
+ { /* RGB565 format */
+ hDma2dHandler.Init.ColorMode = DMA2D_RGB565;
+ }
+ else
+ { /* ARGB8888 format */
+ hDma2dHandler.Init.ColorMode = DMA2D_ARGB8888;
+ }
+ hDma2dHandler.Init.OutputOffset = OffLine;
+
+ hDma2dHandler.Instance = DMA2D;
+
+ /* DMA2D Initialization */
+ if(HAL_DMA2D_Init(&hDma2dHandler) == HAL_OK)
+ {
+ if(HAL_DMA2D_ConfigLayer(&hDma2dHandler, LayerIndex) == HAL_OK)
+ {
+ if (HAL_DMA2D_Start(&hDma2dHandler, ColorIndex, (uint32_t)pDst, xSize, ySize) == HAL_OK)
+ {
+ /* Polling For DMA transfer */
+ HAL_DMA2D_PollForTransfer(&hDma2dHandler, 10);
+ }
+ }
+ }
+}
+
+/**
+ * @brief Converts a line to an ARGB8888 pixel format.
+ * @param pSrc: Pointer to source buffer
+ * @param pDst: Output color
+ * @param xSize: Buffer width
+ * @param ColorMode: Input color mode
+ * @retval None
+ */
+static void LL_ConvertLineToARGB8888(void *pSrc, void *pDst, uint32_t xSize, uint32_t ColorMode)
+{
+ /* Configure the DMA2D Mode, Color Mode and output offset */
+ hDma2dHandler.Init.Mode = DMA2D_M2M_PFC;
+ hDma2dHandler.Init.ColorMode = DMA2D_ARGB8888;
+ hDma2dHandler.Init.OutputOffset = 0;
+
+ /* Foreground Configuration */
+ hDma2dHandler.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
+ hDma2dHandler.LayerCfg[1].InputAlpha = 0xFF;
+ hDma2dHandler.LayerCfg[1].InputColorMode = ColorMode;
+ hDma2dHandler.LayerCfg[1].InputOffset = 0;
+
+ hDma2dHandler.Instance = DMA2D;
+
+ /* DMA2D Initialization */
+ if(HAL_DMA2D_Init(&hDma2dHandler) == HAL_OK)
+ {
+ if(HAL_DMA2D_ConfigLayer(&hDma2dHandler, 1) == HAL_OK)
+ {
+ if (HAL_DMA2D_Start(&hDma2dHandler, (uint32_t)pSrc, (uint32_t)pDst, xSize, 1) == HAL_OK)
+ {
+ /* Polling For DMA transfer */
+ HAL_DMA2D_PollForTransfer(&hDma2dHandler, 10);
+ }
+ }
+ }
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/