ST
BSP files for STM32H747I-Discovery Copy from ST Cube delivery
Dependents: DISCO_H747I_LCD_demo DISCO_H747I_AUDIO_demo
STM32H747I-Discovery/stm32h747i_discovery_lcd.c
- Committer:
- Jerome Coutant
- Date:
- 2019-09-25
- Revision:
- 0:146cf26a9bbb
File content as of revision 0:146cf26a9bbb:
/**
******************************************************************************
* @file stm32h747i_discovery_lcd.c
* @author MCD Application Team
* @brief This file includes the driver for Liquid Crystal Display (LCD) module
* mounted on STM32H747I_DISCOVERY board.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* File Info: ------------------------------------------------------------------
User NOTES
1. How To use this driver:
--------------------------
- This driver is used to drive directly in video mode a LCD TFT using the DSI interface.
The following IPs are implied : DSI Host IP block working
in conjunction to the LTDC controller.
- This driver is linked by construction to LCD KoD mounted on board MB1166.
2. Driver description:
---------------------
+ Initialization steps:
o Initialize the LCD using the BSP_LCD_Init() 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 whole 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.
------------------------------------------------------------------------------*/
/* Includes ------------------------------------------------------------------*/
#include "stm32h747i_discovery_lcd.h"
#include "../Utilities/Fonts/fonts.h"
// #include "../Utilities/Fonts/font24.c"
// #include "../Utilities/Fonts/font20.c"
// #include "../Utilities/Fonts/font16.c"
// #include "../Utilities/Fonts/font12.c"
// #include "../Utilities/Fonts/font8.c"
/** @addtogroup BSP
* @{
*/
/** @addtogroup STM32H747I_DISCOVERY
* @{
*/
/** @defgroup STM32H747I_DISCOVERY_LCD STM32H747I_DISCOVERY_LCD
* @{
*/
/** @defgroup STM32H747I_DISCOVERY_LCD_Private_Defines Private Defines
* @{
*/
#if defined(USE_LCD_HDMI)
#define HDMI_ASPECT_RATIO_16_9 ADV7533_ASPECT_RATIO_16_9
#define HDMI_ASPECT_RATIO_4_3 ADV7533_ASPECT_RATIO_4_3
#endif /* USE_LCD_HDMI */
#define LCD_DSI_ID 0x11
#define LCD_DSI_ID_REG 0xA8
/**
* @}
*/
/** @defgroup STM32H747I_DISCOVERY_LCD_Private_Types Private Types
* @{
*/
#if defined(USE_LCD_HDMI)
/**
* @brief DSI timming params used for different HDMI adpater
*/
typedef struct
{
uint16_t HACT;
uint16_t HSYNC;
uint16_t HBP;
uint16_t HFP;
uint16_t VACT;
uint16_t VSYNC;
uint16_t VBP;
uint16_t VFP;
uint8_t ASPECT_RATIO;
uint8_t RGB_CODING;
} HDMI_FormatTypeDef;
/**
* @brief DSI packet params used for different HDMI adpater
*/
typedef struct
{
uint16_t NullPacketSize;
uint16_t NumberOfChunks;
uint16_t PacketSize;
} HDMI_DSIPacketTypeDef;
/**
* @brief LTDC PLL params used for different HDMI adpater
*/
typedef struct
{
uint16_t PLL_LTDC_N;
uint16_t PLL_LTDC_R;
uint32_t PCLK;
uint16_t IDF;
uint16_t NDIV;
uint16_t ODF;
uint16_t LaneByteClock;
uint16_t TXEscapeCkdiv;
} HDMI_PLLConfigTypeDef;
#endif /* USE_LCD_HDMI */
/**
* @}
*/
/** @defgroup STM32H747I_DISCOVERY_LCD_Private_Macros Private Macros
* @{
*/
#define ABS(X) ((X) > 0 ? (X) : -(X))
#define POLY_X(Z) ((int32_t)((Points + (Z))->X))
#define POLY_Y(Z) ((int32_t)((Points + (Z))->Y))
/**
* @}
*/
/** @defgroup STM32H747I_DISCOVERY_LCD_Exported_Variables Exported Variables
* @{
*/
DMA2D_HandleTypeDef hdma2d_discovery;
LTDC_HandleTypeDef hltdc_discovery;
DSI_HandleTypeDef hdsi_discovery;
/**
* @}
*/
/** @defgroup STM32H747I_DISCOVERY_LCD_Private_Variables Private Variables
* @{
*/
static DSI_VidCfgTypeDef hdsivideo_handle;
uint32_t lcd_x_size = OTM8009A_800X480_WIDTH;
uint32_t lcd_y_size = OTM8009A_800X480_HEIGHT;
#if defined(USE_LCD_HDMI)
/**
* @brief DSI timming used for different HDMI resolution (720x480 and 720x576)
*/
HDMI_FormatTypeDef HDMI_Format[2] =
{
/* HA HS HB HF VA VS VB VF ASPECT BPP */
{720, 62, 60, 30, 480, 6, 19, 9, HDMI_ASPECT_RATIO_4_3, LCD_DSI_PIXEL_DATA_FMT_RBG888},
{720, 64, 68, 12, 576, 5, 39, 5, HDMI_ASPECT_RATIO_16_9, LCD_DSI_PIXEL_DATA_FMT_RBG888}
};
/**
* @brief DSI packet size used for different HDMI resolution (720x480 and 720x576)
*/
HDMI_DSIPacketTypeDef HDMI_DSIPacket[2] =
{
/* NP NC VP */
{0, 1, 720},
{0, 1, 720}
};
/**
* @brief LTDC PLL settings used for different HDMI resolution (720x480 and 720x576)
*/
HDMI_PLLConfigTypeDef HDMI_PLLConfig[4] =
{
/* N DIV Pclk IDF NDIV ODF LBClk TXEscapeCkdiv*/
{13, 12, 27083, DSI_PLL_IN_DIV5, 65, DSI_PLL_OUT_DIV1, 40625, 3},
{13, 12, 27083, DSI_PLL_IN_DIV5, 65, DSI_PLL_OUT_DIV1, 40625, 3},
};
#endif /* USE_LCD_HDMI */
/**
* @brief Default Active LTDC Layer in which drawing is made is LTDC Layer Background
*/
static uint32_t ActiveLayer = LTDC_ACTIVE_LAYER_BACKGROUND;
/**
* @brief Current Drawing Layer properties variable
*/
static LCD_DrawPropTypeDef DrawProp[LTDC_MAX_LAYER_NUMBER];
/**
* @}
*/
/** @defgroup STM32H747I_DISCOVERY_LCD_Private_FunctionPrototypes Private FunctionPrototypes
* @{
*/
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);
static uint16_t LCD_IO_GetID(void);
/**
* @}
*/
/** @defgroup STM32H747I_DISCOVERY_LCD_Exported_Functions Exported Functions
* @{
*/
/**
* @brief Initializes the DSI LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_Init(void)
{
return (BSP_LCD_InitEx(LCD_ORIENTATION_LANDSCAPE));
}
/**
* @brief Initializes the DSI LCD.
* The ititialization is done as below:
* - DSI PLL ititialization
* - DSI ititialization
* - LTDC ititialization
* - OTM8009A LCD Display IC Driver ititialization
* @param orientation Display orientation
* @retval LCD state
*/
uint8_t BSP_LCD_InitEx(LCD_OrientationTypeDef orientation)
{
DSI_PLLInitTypeDef dsiPllInit;
DSI_PHY_TimerTypeDef PhyTimings;
static RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
uint32_t LcdClock = 26400; /*!< LcdClk = 26400 kHz */
uint16_t read_id = 0;
uint32_t laneByteClk_kHz = 0;
uint32_t VSA; /*!< Vertical start active time in units of lines */
uint32_t VBP; /*!< Vertical Back Porch time in units of lines */
uint32_t VFP; /*!< Vertical Front Porch time in units of lines */
uint32_t VACT; /*!< Vertical Active time in units of lines = imageSize Y in pixels to display */
uint32_t HSA; /*!< Horizontal start active time in units of lcdClk */
uint32_t HBP; /*!< Horizontal Back Porch time in units of lcdClk */
uint32_t HFP; /*!< Horizontal Front Porch time in units of lcdClk */
uint32_t HACT; /*!< Horizontal Active time in units of lcdClk = imageSize X in pixels to display */
/* Toggle Hardware Reset of the DSI LCD using
* its XRES signal (active low) */
BSP_LCD_Reset();
/* Check the connected monitor */
read_id = LCD_IO_GetID();
#if defined(USE_LCD_HDMI)
if(read_id == ADV7533_ID)
{
return BSP_LCD_HDMIInitEx(HDMI_FORMAT_720_576);
}
else if(read_id != LCD_DSI_ID)
{
return LCD_ERROR;
}
#else
if(read_id != LCD_DSI_ID)
{
return LCD_ERROR;
}
#endif /* USE_LCD_HDMI */
/* Call first MSP Initialize only in case of first initialization
* This will set IP blocks LTDC, DSI and DMA2D
* - out of reset
* - clocked
* - NVIC IRQ related to IP blocks enabled
*/
BSP_LCD_MspInit();
/*************************DSI Initialization***********************************/
/* Base address of DSI Host/Wrapper registers to be set before calling De-Init */
hdsi_discovery.Instance = DSI;
HAL_DSI_DeInit(&(hdsi_discovery));
dsiPllInit.PLLNDIV = 100;
dsiPllInit.PLLIDF = DSI_PLL_IN_DIV5;
dsiPllInit.PLLODF = DSI_PLL_OUT_DIV1;
laneByteClk_kHz = 62500; /* 500 MHz / 8 = 62.5 MHz = 62500 kHz */
/* Set number of Lanes */
hdsi_discovery.Init.NumberOfLanes = DSI_TWO_DATA_LANES;
/* TXEscapeCkdiv = f(LaneByteClk)/15.62 = 4 */
hdsi_discovery.Init.TXEscapeCkdiv = laneByteClk_kHz/15620;
HAL_DSI_Init(&(hdsi_discovery), &(dsiPllInit));
/* Timing parameters for all Video modes
* Set Timing parameters of LTDC depending on its chosen orientation
*/
if(orientation == LCD_ORIENTATION_PORTRAIT)
{
lcd_x_size = OTM8009A_480X800_WIDTH; /* 480 */
lcd_y_size = OTM8009A_480X800_HEIGHT; /* 800 */
}
else
{
/* lcd_orientation == LCD_ORIENTATION_LANDSCAPE */
lcd_x_size = OTM8009A_800X480_WIDTH; /* 800 */
lcd_y_size = OTM8009A_800X480_HEIGHT; /* 480 */
}
HACT = lcd_x_size;
VACT = lcd_y_size;
/* The following values are same for portrait and landscape orientations */
VSA = OTM8009A_480X800_VSYNC; /* 10 */
VBP = OTM8009A_480X800_VBP; /* 15 */
VFP = OTM8009A_480X800_VFP; /* 16 */
HSA = OTM8009A_480X800_HSYNC; /* 2 */
HBP = OTM8009A_480X800_HBP; /* 20 */
HFP = OTM8009A_480X800_HFP; /* 20 */
hdsivideo_handle.VirtualChannelID = LCD_OTM8009A_ID;
hdsivideo_handle.ColorCoding = LCD_DSI_PIXEL_DATA_FMT_RBG888;
hdsivideo_handle.VSPolarity = DSI_VSYNC_ACTIVE_HIGH;
hdsivideo_handle.HSPolarity = DSI_HSYNC_ACTIVE_HIGH;
hdsivideo_handle.DEPolarity = DSI_DATA_ENABLE_ACTIVE_HIGH;
hdsivideo_handle.Mode = DSI_VID_MODE_BURST; /* Mode Video burst ie : one LgP per line */
hdsivideo_handle.NullPacketSize = 0xFFF;
hdsivideo_handle.NumberOfChunks = 0;
hdsivideo_handle.PacketSize = HACT; /* Value depending on display orientation choice portrait/landscape */
hdsivideo_handle.HorizontalSyncActive = (HSA * laneByteClk_kHz)/LcdClock;
hdsivideo_handle.HorizontalBackPorch = (HBP * laneByteClk_kHz)/LcdClock;
hdsivideo_handle.HorizontalLine = ((HACT + HSA + HBP + HFP) * laneByteClk_kHz)/LcdClock; /* Value depending on display orientation choice portrait/landscape */
hdsivideo_handle.VerticalSyncActive = VSA;
hdsivideo_handle.VerticalBackPorch = VBP;
hdsivideo_handle.VerticalFrontPorch = VFP;
hdsivideo_handle.VerticalActive = VACT; /* Value depending on display orientation choice portrait/landscape */
/* Enable or disable sending LP command while streaming is active in video mode */
hdsivideo_handle.LPCommandEnable = DSI_LP_COMMAND_ENABLE; /* Enable sending commands in mode LP (Low Power) */
/* Largest packet size possible to transmit in LP mode in VSA, VBP, VFP regions */
/* Only useful when sending LP packets is allowed while streaming is active in video mode */
hdsivideo_handle.LPLargestPacketSize = 16;
/* Largest packet size possible to transmit in LP mode in HFP region during VACT period */
/* Only useful when sending LP packets is allowed while streaming is active in video mode */
hdsivideo_handle.LPVACTLargestPacketSize = 0;
/* Specify for each region of the video frame, if the transmission of command in LP mode is allowed in this region */
/* while streaming is active in video mode */
hdsivideo_handle.LPHorizontalFrontPorchEnable = DSI_LP_HFP_ENABLE; /* Allow sending LP commands during HFP period */
hdsivideo_handle.LPHorizontalBackPorchEnable = DSI_LP_HBP_ENABLE; /* Allow sending LP commands during HBP period */
hdsivideo_handle.LPVerticalActiveEnable = DSI_LP_VACT_ENABLE; /* Allow sending LP commands during VACT period */
hdsivideo_handle.LPVerticalFrontPorchEnable = DSI_LP_VFP_ENABLE; /* Allow sending LP commands during VFP period */
hdsivideo_handle.LPVerticalBackPorchEnable = DSI_LP_VBP_ENABLE; /* Allow sending LP commands during VBP period */
hdsivideo_handle.LPVerticalSyncActiveEnable = DSI_LP_VSYNC_ENABLE; /* Allow sending LP commands during VSync = VSA period */
/* Configure DSI Video mode timings with settings set above */
HAL_DSI_ConfigVideoMode(&(hdsi_discovery), &(hdsivideo_handle));
/* Configure DSI PHY HS2LP and LP2HS timings */
PhyTimings.ClockLaneHS2LPTime = 35;
PhyTimings.ClockLaneLP2HSTime = 35;
PhyTimings.DataLaneHS2LPTime = 35;
PhyTimings.DataLaneLP2HSTime = 35;
PhyTimings.DataLaneMaxReadTime = 0;
PhyTimings.StopWaitTime = 10;
HAL_DSI_ConfigPhyTimer(&hdsi_discovery, &PhyTimings);
/*************************End DSI Initialization*******************************/
/************************LTDC Initialization***********************************/
/* Timing Configuration */
hltdc_discovery.Init.HorizontalSync = (HSA - 1);
hltdc_discovery.Init.AccumulatedHBP = (HSA + HBP - 1);
hltdc_discovery.Init.AccumulatedActiveW = (lcd_x_size + HSA + HBP - 1);
hltdc_discovery.Init.TotalWidth = (lcd_x_size + HSA + HBP + HFP - 1);
/* Initialize the LCD pixel width and pixel height */
hltdc_discovery.LayerCfg->ImageWidth = lcd_x_size;
hltdc_discovery.LayerCfg->ImageHeight = lcd_y_size;
/* LCD clock configuration */
/* PLL3_VCO Input = HSE_VALUE/PLL3M = 5 Mhz */
/* PLL3_VCO Output = PLL3_VCO Input * PLL3N = 480 Mhz */
/* PLLLCDCLK = PLL3_VCO Output/PLL3R = 480/18 = 26.666 Mhz */
/* LTDC clock frequency = PLLLCDCLK = 26.666 Mhz */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLL3.PLL3M = 5;
PeriphClkInitStruct.PLL3.PLL3N = 96;
PeriphClkInitStruct.PLL3.PLL3P = 2;
PeriphClkInitStruct.PLL3.PLL3Q = 10;
PeriphClkInitStruct.PLL3.PLL3R = 18;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Background value */
hltdc_discovery.Init.Backcolor.Blue = 0;
hltdc_discovery.Init.Backcolor.Green = 0;
hltdc_discovery.Init.Backcolor.Red = 0;
hltdc_discovery.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc_discovery.Instance = LTDC;
/* Get LTDC Configuration from DSI Configuration */
HAL_LTDC_StructInitFromVideoConfig(&(hltdc_discovery), &(hdsivideo_handle));
/* Initialize the LTDC */
HAL_LTDC_Init(&hltdc_discovery);
/* Enable the DSI host and wrapper : after LTDC */
/* To avoid any synchronization issue, the DSI shall be started after enabling the LTDC */
HAL_DSI_Start(&hdsi_discovery);
#if !defined(DATA_IN_ExtSDRAM)
/* Initialize the SDRAM */
BSP_SDRAM_Init();
#endif /* DATA_IN_ExtSDRAM */
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
/************************End LTDC Initialization*******************************/
/***********************OTM8009A Initialization********************************/
/* Initialize the OTM8009A LCD Display IC Driver (KoD LCD IC Driver)
* depending on configuration set in 'hdsivideo_handle'.
*/
OTM8009A_Init(OTM8009A_FORMAT_RGB888, orientation);
/***********************End OTM8009A Initialization****************************/
return LCD_OK;
}
#if defined(USE_LCD_HDMI)
/**
* @brief Initializes the DSI for HDMI monitor.
* The ititialization is done as below:
* - DSI PLL ititialization
* - DSI ititialization
* - LTDC ititialization
* - DSI-HDMI ADV7533 adapter device ititialization
* @param format : HDMI format could be HDMI_FORMAT_720_480 or HDMI_FORMAT_720_576
* @retval LCD state
*/
uint8_t BSP_LCD_HDMIInitEx(uint8_t format)
{
/************************ADV7533 Initialization******************************/
/* Initialize the ADV7533 HDMI Bridge
depending on configuration set in 'hdsivideo_handle'. */
adv7533ConfigTypeDef adv7533_config;
adv7533_config.DSI_LANES = 2;
adv7533_config.HACT = HDMI_Format[format].HACT;
adv7533_config.HSYNC = HDMI_Format[format].HSYNC;
adv7533_config.HBP = HDMI_Format[format].HBP;
adv7533_config.HFP = HDMI_Format[format].HFP;
adv7533_config.VACT = HDMI_Format[format].VACT;
adv7533_config.VSYNC = HDMI_Format[format].VSYNC;
adv7533_config.VBP = HDMI_Format[format].VBP;
adv7533_config.VFP = HDMI_Format[format].VFP;
ADV7533_Init();
ADV7533_Configure(&adv7533_config);
ADV7533_PowerOn();
/************************ Update hdmi_x_size and hdmi_y_size *****************/
lcd_x_size = HDMI_Format[format].HACT;
lcd_y_size = HDMI_Format[format].VACT;
/***********************End ADV7533 Initialization****************************/
DSI_PLLInitTypeDef dsiPllInit;
DSI_PHY_TimerTypeDef dsiPhyInit;
static RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/* Call first MSP Initialize only in case of first initialization
* This will set IP blocks LTDC and DSI
* - out of reset
* - clocked
* - NVIC IRQ related to IP blocks enabled
*/
BSP_LCD_MspInit();
/*************************DSI Initialization***********************************/
/* Base address of DSI Host/Wrapper registers to be set before calling De-Init */
hdsi_discovery.Instance = DSI;
HAL_DSI_DeInit(&(hdsi_discovery));
/* Configure the DSI PLL */
dsiPllInit.PLLNDIV = HDMI_PLLConfig[format].NDIV;
dsiPllInit.PLLIDF = HDMI_PLLConfig[format].IDF;
dsiPllInit.PLLODF = HDMI_PLLConfig[format].ODF;
/* Set number of Lanes */
hdsi_discovery.Init.NumberOfLanes = DSI_TWO_DATA_LANES;
/* Set the TX escape clock division ratio */
hdsi_discovery.Init.TXEscapeCkdiv = HDMI_PLLConfig[format].TXEscapeCkdiv;
/* Disable the automatic clock lane control (the ADV7533 must be clocked) */
hdsi_discovery.Init.AutomaticClockLaneControl = DSI_AUTO_CLK_LANE_CTRL_DISABLE;
/* Init the DSI */
HAL_DSI_Init(&hdsi_discovery, &dsiPllInit);
/* Configure the D-PHY Timings */
dsiPhyInit.ClockLaneHS2LPTime = 0x14;
dsiPhyInit.ClockLaneLP2HSTime = 0x14;
dsiPhyInit.DataLaneHS2LPTime = 0x0A;
dsiPhyInit.DataLaneLP2HSTime = 0x0A;
dsiPhyInit.DataLaneMaxReadTime = 0x00;
dsiPhyInit.StopWaitTime = 0x0;
HAL_DSI_ConfigPhyTimer(&hdsi_discovery, &dsiPhyInit);
/* Virutal channel used by the ADV7533 */
hdsivideo_handle.VirtualChannelID = HDMI_ADV7533_ID;
/* Timing parameters for Video modes
Set Timing parameters of DSI depending on its chosen format */
hdsivideo_handle.ColorCoding = HDMI_Format[format].RGB_CODING;
hdsivideo_handle.LooselyPacked = DSI_LOOSELY_PACKED_DISABLE;
hdsivideo_handle.VSPolarity = DSI_VSYNC_ACTIVE_LOW;
hdsivideo_handle.HSPolarity = DSI_HSYNC_ACTIVE_LOW;
hdsivideo_handle.DEPolarity = DSI_DATA_ENABLE_ACTIVE_HIGH;
hdsivideo_handle.Mode = DSI_VID_MODE_NB_PULSES;
hdsivideo_handle.NullPacketSize = HDMI_DSIPacket[format].NullPacketSize;
hdsivideo_handle.NumberOfChunks = HDMI_DSIPacket[format].NumberOfChunks;
hdsivideo_handle.PacketSize = HDMI_DSIPacket[format].PacketSize;
hdsivideo_handle.HorizontalSyncActive = HDMI_Format[format].HSYNC*HDMI_PLLConfig[format].LaneByteClock/HDMI_PLLConfig[format].PCLK;
hdsivideo_handle.HorizontalBackPorch = HDMI_Format[format].HBP*HDMI_PLLConfig[format].LaneByteClock/HDMI_PLLConfig[format].PCLK;
hdsivideo_handle.HorizontalLine = (HDMI_Format[format].HACT + HDMI_Format[format].HSYNC + HDMI_Format[format].HBP + HDMI_Format[format].HFP)*HDMI_PLLConfig[format].LaneByteClock/HDMI_PLLConfig[format].PCLK;
hdsivideo_handle.VerticalSyncActive = HDMI_Format[format].VSYNC;
hdsivideo_handle.VerticalBackPorch = HDMI_Format[format].VBP;
hdsivideo_handle.VerticalFrontPorch = HDMI_Format[format].VFP;
hdsivideo_handle.VerticalActive = HDMI_Format[format].VACT;
/* Enable or disable sending LP command while streaming is active in video mode */
hdsivideo_handle.LPCommandEnable = DSI_LP_COMMAND_DISABLE; /* Enable sending commands in mode LP (Low Power) */
/* Largest packet size possible to transmit in LP mode in VSA, VBP, VFP regions */
/* Only useful when sending LP packets is allowed while streaming is active in video mode */
hdsivideo_handle.LPLargestPacketSize = 4;
/* Largest packet size possible to transmit in LP mode in HFP region during VACT period */
/* Only useful when sending LP packets is allowed while streaming is active in video mode */
hdsivideo_handle.LPVACTLargestPacketSize = 4;
/* Specify for each region, if the going in LP mode is allowed */
/* while streaming is active in video mode */
hdsivideo_handle.LPHorizontalFrontPorchEnable = DSI_LP_HFP_DISABLE;
hdsivideo_handle.LPHorizontalBackPorchEnable = DSI_LP_HBP_DISABLE;
hdsivideo_handle.LPVerticalActiveEnable = DSI_LP_VACT_DISABLE;
hdsivideo_handle.LPVerticalFrontPorchEnable = DSI_LP_VFP_DISABLE;
hdsivideo_handle.LPVerticalBackPorchEnable = DSI_LP_VBP_DISABLE;
hdsivideo_handle.LPVerticalSyncActiveEnable = DSI_LP_VSYNC_DISABLE;
/* No acknoledge at the end of a frame */
hdsivideo_handle.FrameBTAAcknowledgeEnable = DSI_FBTAA_DISABLE;
/* Configure DSI Video mode timings with settings set above */
HAL_DSI_ConfigVideoMode(&hdsi_discovery, &hdsivideo_handle);
/* Enable the DSI host and wrapper : but LTDC is not started yet at this stage */
HAL_DSI_Start(&hdsi_discovery);
/*************************End DSI Initialization*******************************/
/************************LTDC Initialization***********************************/
/* LCD clock configuration */
/* LCD clock configuration */
/* PLL3_VCO Input = HSE_VALUE/PLL3M = 25 Mhz */
/* PLL3_VCO Output = PLL3_VCO Input * PLL3N */
/* PLLLCDCLK = PLL3_VCO Output/PLL3R */
/* LTDC clock frequency = PLLLCDCLK */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLL3.PLL3M = 1;
PeriphClkInitStruct.PLL3.PLL3N = HDMI_PLLConfig[format].PLL_LTDC_N;
PeriphClkInitStruct.PLL3.PLL3P = 2;
PeriphClkInitStruct.PLL3.PLL3Q = 2;
PeriphClkInitStruct.PLL3.PLL3R = HDMI_PLLConfig[format].PLL_LTDC_R;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Base address of LTDC registers to be set before calling De-Init */
hltdc_discovery.Instance = LTDC;
HAL_LTDC_DeInit(&(hltdc_discovery));
/* Timing Configuration */
hltdc_discovery.Init.HorizontalSync = (HDMI_Format[format].HSYNC - 1);
hltdc_discovery.Init.AccumulatedHBP = (HDMI_Format[format].HSYNC + HDMI_Format[format].HBP - 1);
hltdc_discovery.Init.AccumulatedActiveW = (HDMI_Format[format].HACT + HDMI_Format[format].HSYNC + HDMI_Format[format].HBP - 1);
hltdc_discovery.Init.TotalWidth = (HDMI_Format[format].HACT + HDMI_Format[format].HSYNC + HDMI_Format[format].HBP + HDMI_Format[format].HFP - 1);
hltdc_discovery.Init.VerticalSync = (HDMI_Format[format].VSYNC - 1);
hltdc_discovery.Init.AccumulatedVBP = (HDMI_Format[format].VSYNC + HDMI_Format[format].VBP - 1);
hltdc_discovery.Init.AccumulatedActiveH = (HDMI_Format[format].VACT + HDMI_Format[format].VSYNC + HDMI_Format[format].VBP - 1);
hltdc_discovery.Init.TotalHeigh = (HDMI_Format[format].VACT + HDMI_Format[format].VSYNC + HDMI_Format[format].VBP + HDMI_Format[format].VFP - 1);
/* background value */
hltdc_discovery.Init.Backcolor.Blue = 0x00;
hltdc_discovery.Init.Backcolor.Green = 0xFF;
hltdc_discovery.Init.Backcolor.Red = 0xFF;
/* Polarity */
hltdc_discovery.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc_discovery.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc_discovery.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc_discovery.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
/* Initialize & Start the LTDC */
HAL_LTDC_Init(&hltdc_discovery);
#if !defined(DATA_IN_ExtSDRAM)
/* Initialize the SDRAM */
BSP_SDRAM_Init();
#endif /* DATA_IN_ExtSDRAM */
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
/************************End LTDC Initialization*******************************/
return LCD_OK;
}
#endif /* USE_LCD_HDMI */
/**
* @brief BSP LCD Reset
* Hw reset the LCD DSI activating its XRES signal (active low for some time)
* and deactivating it later.
* @retval None
*/
void BSP_LCD_Reset(void)
{
GPIO_InitTypeDef gpio_init_structure;
__HAL_RCC_GPIOG_CLK_ENABLE();
/* Configure the GPIO on PG3 */
gpio_init_structure.Pin = GPIO_PIN_3;
gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
gpio_init_structure.Pull = GPIO_PULLUP;
gpio_init_structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(GPIOG, &gpio_init_structure);
/* Activate XRES active low */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_3, GPIO_PIN_RESET);
HAL_Delay(20); /* wait 20 ms */
/* Desactivate XRES */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_3, GPIO_PIN_SET);
/* Wait for 10ms after releasing XRES before sending commands */
HAL_Delay(10);
}
/**
* @brief Gets the LCD X size.
* @retval Used LCD X size
*/
uint32_t BSP_LCD_GetXSize(void)
{
return (lcd_x_size);
}
/**
* @brief Gets the LCD Y size.
* @retval Used LCD Y size
*/
uint32_t BSP_LCD_GetYSize(void)
{
return (lcd_y_size);
}
/**
* @brief Set the LCD X size.
* @param imageWidthPixels : uint32_t image width in pixels unit
* @retval None
*/
void BSP_LCD_SetXSize(uint32_t imageWidthPixels)
{
hltdc_discovery.LayerCfg[ActiveLayer].ImageWidth = imageWidthPixels;
}
/**
* @brief Set the LCD Y size.
* @param imageHeightPixels : uint32_t image height in lines unit
*/
void BSP_LCD_SetYSize(uint32_t imageHeightPixels)
{
hltdc_discovery.LayerCfg[ActiveLayer].ImageHeight = imageHeightPixels;
}
/**
* @brief Initializes the LCD layers.
* @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 Layercfg;
/* Layer Init */
Layercfg.WindowX0 = 0;
Layercfg.WindowX1 = BSP_LCD_GetXSize();
Layercfg.WindowY0 = 0;
Layercfg.WindowY1 = BSP_LCD_GetYSize();
Layercfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
Layercfg.FBStartAdress = FB_Address;
Layercfg.Alpha = 255;
Layercfg.Alpha0 = 0;
Layercfg.Backcolor.Blue = 0;
Layercfg.Backcolor.Green = 0;
Layercfg.Backcolor.Red = 0;
Layercfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
Layercfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
Layercfg.ImageWidth = BSP_LCD_GetXSize();
Layercfg.ImageHeight = BSP_LCD_GetYSize();
HAL_LTDC_ConfigLayer(&hltdc_discovery, &Layercfg, 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
*/
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
*/
void BSP_LCD_SetLayerVisible(uint32_t LayerIndex, FunctionalState State)
{
if(State == ENABLE)
{
__HAL_LTDC_LAYER_ENABLE(&(hltdc_discovery), LayerIndex);
}
else
{
__HAL_LTDC_LAYER_DISABLE(&(hltdc_discovery), LayerIndex);
}
__HAL_LTDC_RELOAD_CONFIG(&(hltdc_discovery));
}
/**
* @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
*/
void BSP_LCD_SetTransparency(uint32_t LayerIndex, uint8_t Transparency)
{
HAL_LTDC_SetAlpha(&(hltdc_discovery), Transparency, LayerIndex);
}
/**
* @brief Sets an LCD layer frame buffer address.
* @param LayerIndex: Layer foreground or background
* @param Address: New LCD frame buffer value
*/
void BSP_LCD_SetLayerAddress(uint32_t LayerIndex, uint32_t Address)
{
HAL_LTDC_SetAddress(&(hltdc_discovery), 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
*/
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(&(hltdc_discovery), Width, Height, LayerIndex);
/* Reconfigure the layer position */
HAL_LTDC_SetWindowPosition(&(hltdc_discovery), Xpos, Ypos, LayerIndex);
}
/**
* @brief Configures and sets the color keying.
* @param LayerIndex: Layer foreground or background
* @param RGBValue: Color reference
*/
void BSP_LCD_SetColorKeying(uint32_t LayerIndex, uint32_t RGBValue)
{
/* Configure and Enable the color Keying for LCD Layer */
HAL_LTDC_ConfigColorKeying(&(hltdc_discovery), RGBValue, LayerIndex);
HAL_LTDC_EnableColorKeying(&(hltdc_discovery), LayerIndex);
}
/**
* @brief Disables the color keying.
* @param LayerIndex: Layer foreground or background
*/
void BSP_LCD_ResetColorKeying(uint32_t LayerIndex)
{
/* Disable the color Keying for LCD Layer */
HAL_LTDC_DisableColorKeying(&(hltdc_discovery), LayerIndex);
}
/**
* @brief Sets the LCD text color.
* @param Color: Text color code ARGB(8-8-8-8)
*/
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)
*/
void BSP_LCD_SetBackColor(uint32_t Color)
{
DrawProp[ActiveLayer].BackColor = Color;
}
/**
* @brief Gets the LCD background color.
* @retval Used background color
*/
uint32_t BSP_LCD_GetBackColor(void)
{
return DrawProp[ActiveLayer].BackColor;
}
/**
* @brief Sets the LCD text font.
* @param fonts: Layer font to be used
*/
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(hltdc_discovery.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888)
{
/* Read data value from SDRAM memory */
ret = *(__IO uint32_t*) (hltdc_discovery.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos)));
}
else if(hltdc_discovery.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB888)
{
/* Read data value from SDRAM memory */
ret = (*(__IO uint32_t*) (hltdc_discovery.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos))) & 0x00FFFFFF);
}
else if((hltdc_discovery.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565) || \
(hltdc_discovery.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \
(hltdc_discovery.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_AL88))
{
/* Read data value from SDRAM memory */
ret = *(__IO uint16_t*) (hltdc_discovery.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos)));
}
else
{
/* Read data value from SDRAM memory */
ret = *(__IO uint8_t*) (hltdc_discovery.LayerCfg[ActiveLayer].FBStartAdress + (2*(Ypos*BSP_LCD_GetXSize() + Xpos)));
}
return ret;
}
/**
* @brief Clears the whole currently active layer of LTDC.
* @param Color: Color of the background
* @retval None
*/
void BSP_LCD_Clear(uint32_t Color)
{
/* Clear the LCD */
LL_FillBuffer(ActiveLayer, (uint32_t *)(hltdc_discovery.LayerCfg[ActiveLayer].FBStartAdress), BSP_LCD_GetXSize(), BSP_LCD_GetYSize(), 0, Color);
}
/**
* @brief Clears the selected line in currently active layer.
* @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 in currently active layer.
* @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 in currently active layer.
* @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 refcolumn = 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:
{
refcolumn = Xpos + ((xsize - size)* DrawProp[ActiveLayer].pFont->Width) / 2;
break;
}
case LEFT_MODE:
{
refcolumn = Xpos;
break;
}
case RIGHT_MODE:
{
refcolumn = - Xpos + ((xsize - size)*DrawProp[ActiveLayer].pFont->Width);
break;
}
default:
{
refcolumn = Xpos;
break;
}
}
/* Check that the Start column is located in the screen */
if ((refcolumn < 1) || (refcolumn >= 0x8000))
{
refcolumn = 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(refcolumn, Ypos, *Text);
/* Decrement the column position by 16 */
refcolumn += 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 in currently active layer.
* @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 */
Xaddress = (hltdc_discovery.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 in currently active layer.
* @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 */
Xaddress = (hltdc_discovery.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) in currently active layer.
* @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, numadd = 0, numpixels = 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;
numadd = deltay;
numpixels = 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;
numadd = deltax;
numpixels = deltay; /* There are more y-values than x-values */
}
for (curpixel = 0; curpixel <= numpixels; curpixel++)
{
BSP_LCD_DrawPixel(x, y, DrawProp[ActiveLayer].TextColor); /* Draw the current pixel */
num += numadd; /* 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 in currently active layer.
* @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 in currently active layer.
* @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 D; /* Decision Variable */
uint32_t CurX; /* Current X Value */
uint32_t CurY; /* Current Y Value */
D = 3 - (Radius << 1);
CurX = 0;
CurY = Radius;
while (CurX <= CurY)
{
BSP_LCD_DrawPixel((Xpos + CurX), (Ypos - CurY), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos - CurX), (Ypos - CurY), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos + CurY), (Ypos - CurX), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos - CurY), (Ypos - CurX), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos + CurX), (Ypos + CurY), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos - CurX), (Ypos + CurY), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos + CurY), (Ypos + CurX), DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawPixel((Xpos - CurY), (Ypos + CurX), DrawProp[ActiveLayer].TextColor);
if (D < 0)
{
D += (CurX << 2) + 6;
}
else
{
D += ((CurX - CurY) << 2) + 10;
CurY--;
}
CurX++;
}
}
/**
* @brief Draws an poly-line (between many points) in currently active layer.
* @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 in currently active layer.
* @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 bitmap picture loaded in the internal Flash (32 bpp) in currently active layer.
* @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 InputColorMode = 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 = hltdc_discovery.LayerCfg[ActiveLayer].FBStartAdress + (((BSP_LCD_GetXSize()*Ypos) + Xpos)*(4));
/* Get the layer pixel format */
if ((bit_pixel/8) == 4)
{
InputColorMode = DMA2D_INPUT_ARGB8888;
}
else if ((bit_pixel/8) == 2)
{
InputColorMode = DMA2D_INPUT_RGB565;
}
else
{
InputColorMode = DMA2D_INPUT_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, InputColorMode);
/* Increment the source and destination buffers */
Address+= (BSP_LCD_GetXSize()*4);
pbmp -= width*(bit_pixel/8);
}
}
/**
* @brief Draws a full rectangle in currently active layer.
* @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 Xaddress = 0;
/* Set the text color */
BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor);
/* Get the rectangle start address */
Xaddress = (hltdc_discovery.LayerCfg[ActiveLayer].FBStartAdress) + 4*(BSP_LCD_GetXSize()*Ypos + Xpos);
/* Fill the rectangle */
LL_FillBuffer(ActiveLayer, (uint32_t *)Xaddress, Width, Height, (BSP_LCD_GetXSize() - Width), DrawProp[ActiveLayer].TextColor);
}
/**
* @brief Draws a full circle in currently active layer.
* @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 D; /* Decision Variable */
uint32_t CurX; /* Current X Value */
uint32_t CurY; /* Current Y Value */
D = 3 - (Radius << 1);
CurX = 0;
CurY = Radius;
BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor);
while (CurX <= CurY)
{
if(CurY > 0)
{
BSP_LCD_DrawHLine(Xpos - CurY, Ypos + CurX, 2*CurY);
BSP_LCD_DrawHLine(Xpos - CurY, Ypos - CurX, 2*CurY);
}
if(CurX > 0)
{
BSP_LCD_DrawHLine(Xpos - CurX, Ypos - CurY, 2*CurX);
BSP_LCD_DrawHLine(Xpos - CurX, Ypos + CurY, 2*CurX);
}
if (D < 0)
{
D += (CurX << 2) + 6;
}
else
{
D += ((CurX - CurY) << 2) + 10;
CurY--;
}
CurX++;
}
BSP_LCD_SetTextColor(DrawProp[ActiveLayer].TextColor);
BSP_LCD_DrawCircle(Xpos, Ypos, Radius);
}
/**
* @brief Draws a full poly-line (between many points) in currently active layer.
* @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 in currently active layer.
* @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 Switch back on the display if was switched off by previous call of BSP_LCD_DisplayOff().
* Exit DSI ULPM mode if was allowed and configured in Dsi Configuration.
* @retval None
*/
void BSP_LCD_DisplayOn(void)
{
#if defined(USE_LCD_HDMI)
if(ADV7533_ID == adv7533_drv.ReadID(ADV7533_CEC_DSI_I2C_ADDR))
{
return ; /* Not supported for HDMI display */
}
else
#endif /* USE_LCD_HDMI */
{
/* Send Display on DCS command to display */
HAL_DSI_ShortWrite(&(hdsi_discovery),
hdsivideo_handle.VirtualChannelID,
DSI_DCS_SHORT_PKT_WRITE_P1,
OTM8009A_CMD_DISPON,
0x00);
}
}
/**
* @brief Switch Off the display.
* Enter DSI ULPM mode if was allowed and configured in Dsi Configuration.
* @retval None
*/
void BSP_LCD_DisplayOff(void)
{
#if defined(USE_LCD_HDMI)
if(ADV7533_ID == adv7533_drv.ReadID(ADV7533_CEC_DSI_I2C_ADDR))
{
return ; /* Not supported for HDMI yet */
}
else
#endif /* USE_LCD_HDMI */
{
/* Send Display off DCS Command to display */
HAL_DSI_ShortWrite(&(hdsi_discovery),
hdsivideo_handle.VirtualChannelID,
DSI_DCS_SHORT_PKT_WRITE_P1,
OTM8009A_CMD_DISPOFF,
0x00);
}
}
/**
* @brief Set the brightness value
* @param BrightnessValue: [00: Min (black), 100 Max]
* @retval None
*/
void BSP_LCD_SetBrightness(uint8_t BrightnessValue)
{
#if defined(USE_LCD_HDMI)
if(ADV7533_ID == adv7533_drv.ReadID(ADV7533_CEC_DSI_I2C_ADDR))
{
return ; /* Not supported for HDMI display */
}
else
#endif /* USE_LCD_HDMI */
{
/* Send Display on DCS command to display */
HAL_DSI_ShortWrite(&hdsi_discovery,
LCD_OTM8009A_ID,
DSI_DCS_SHORT_PKT_WRITE_P1,
OTM8009A_CMD_WRDISBV, (uint16_t)(BrightnessValue * 255)/100);
}
}
/**
* @brief DCS or Generic short/long write command
* @param NbrParams: Number of parameters. It indicates the write command mode:
* If inferior to 2, a long write command is performed else short.
* @param pParams: Pointer to parameter values table.
* @retval None
*/
void DSI_IO_WriteCmd(uint32_t NbrParams, uint8_t *pParams)
{
if(NbrParams <= 1)
{
HAL_DSI_ShortWrite(&hdsi_discovery, LCD_OTM8009A_ID, DSI_DCS_SHORT_PKT_WRITE_P1, pParams[0], pParams[1]);
}
else
{
HAL_DSI_LongWrite(&hdsi_discovery, LCD_OTM8009A_ID, DSI_DCS_LONG_PKT_WRITE, NbrParams, pParams[NbrParams], pParams);
}
}
/**
* @brief Returns the ID of connected screen by checking the HDMI
* (adv7533 component) ID or LCD DSI (via TS ID) ID.
* @retval LCD ID
*/
static uint16_t LCD_IO_GetID(void)
{
#if defined(USE_LCD_HDMI)
HDMI_IO_Init();
HDMI_IO_Delay(120);
if(ADV7533_ID == adv7533_drv.ReadID(ADV7533_CEC_DSI_I2C_ADDR))
{
return ADV7533_ID;
}
else if(((HDMI_IO_Read(LCD_DSI_ADDRESS, LCD_DSI_ID_REG) == LCD_DSI_ID)) || \
(HDMI_IO_Read(LCD_DSI_ADDRESS_A02, LCD_DSI_ID_REG) == LCD_DSI_ID))
{
return LCD_DSI_ID;
}
else
{
return 0;
}
#else
return LCD_DSI_ID;
#endif /* USE_LCD_HDMI */
}
/*******************************************************************************
LTDC, DMA2D and DSI BSP Routines
*******************************************************************************/
/**
* @brief De-Initializes the BSP LCD Msp
* Application can surcharge if needed this function implementation.
* @retval None
*/
__weak void BSP_LCD_MspDeInit(void)
{
/** @brief Disable IRQ of LTDC IP */
HAL_NVIC_DisableIRQ(LTDC_IRQn);
/** @brief Disable IRQ of DMA2D IP */
HAL_NVIC_DisableIRQ(DMA2D_IRQn);
/** @brief Disable IRQ of DSI IP */
HAL_NVIC_DisableIRQ(DSI_IRQn);
/** @brief Force and let in reset state LTDC, DMA2D and DSI Host + Wrapper IPs */
__HAL_RCC_LTDC_FORCE_RESET();
__HAL_RCC_DMA2D_FORCE_RESET();
__HAL_RCC_DSI_FORCE_RESET();
/** @brief Disable the LTDC, DMA2D and DSI Host and Wrapper clocks */
__HAL_RCC_LTDC_CLK_DISABLE();
__HAL_RCC_DMA2D_CLK_DISABLE();
__HAL_RCC_DSI_CLK_DISABLE();
}
/**
* @brief Initialize the BSP LCD Msp.
* Application can surcharge if needed this function implementation
* @retval None
*/
__weak void BSP_LCD_MspInit(void)
{
/** @brief Enable the LTDC clock */
__HAL_RCC_LTDC_CLK_ENABLE();
/** @brief Toggle Sw reset of LTDC IP */
__HAL_RCC_LTDC_FORCE_RESET();
__HAL_RCC_LTDC_RELEASE_RESET();
/** @brief Enable the DMA2D clock */
__HAL_RCC_DMA2D_CLK_ENABLE();
/** @brief Toggle Sw reset of DMA2D IP */
__HAL_RCC_DMA2D_FORCE_RESET();
__HAL_RCC_DMA2D_RELEASE_RESET();
/** @brief Enable DSI Host and wrapper clocks */
__HAL_RCC_DSI_CLK_ENABLE();
/** @brief Soft Reset the DSI Host and wrapper */
__HAL_RCC_DSI_FORCE_RESET();
__HAL_RCC_DSI_RELEASE_RESET();
/** @brief NVIC configuration for LTDC interrupt that is now enabled */
HAL_NVIC_SetPriority(LTDC_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(LTDC_IRQn);
/** @brief NVIC configuration for DMA2D interrupt that is now enabled */
HAL_NVIC_SetPriority(DMA2D_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(DMA2D_IRQn);
/** @brief NVIC configuration for DSI interrupt that is now enabled */
HAL_NVIC_SetPriority(DSI_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(DSI_IRQn);
}
/**
* @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 */
*(__IO uint32_t*) (hltdc_discovery.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*BSP_LCD_GetXSize() + Xpos))) = RGB_Code;
}
/**
* @}
*/
/** @defgroup STM32H747I_DISCOVERY_LCD_Private_Functions Private 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, numadd = 0, numpixels = 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;
numadd = deltay;
numpixels = 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;
numadd = deltax;
numpixels = deltay; /* There are more y-values than x-values */
}
for (curpixel = 0; curpixel <= numpixels; curpixel++)
{
BSP_LCD_DrawLine(x, y, x3, y3);
num += numadd; /* 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 */
hdma2d_discovery.Init.Mode = DMA2D_R2M;
hdma2d_discovery.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d_discovery.Init.OutputOffset = OffLine;
hdma2d_discovery.Instance = DMA2D;
/* DMA2D Initialization */
if(HAL_DMA2D_Init(&hdma2d_discovery) == HAL_OK)
{
if(HAL_DMA2D_ConfigLayer(&hdma2d_discovery, 1) == HAL_OK)
{
if (HAL_DMA2D_Start(&hdma2d_discovery, ColorIndex, (uint32_t)pDst, xSize, ySize) == HAL_OK)
{
/* Polling For DMA transfer */
HAL_DMA2D_PollForTransfer(&hdma2d_discovery, 25);
}
}
}
}
/**
* @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 */
hdma2d_discovery.Init.Mode = DMA2D_M2M_PFC;
hdma2d_discovery.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
hdma2d_discovery.Init.OutputOffset = 0;
/* Foreground Configuration */
hdma2d_discovery.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d_discovery.LayerCfg[1].InputAlpha = 0xFF;
hdma2d_discovery.LayerCfg[1].InputColorMode = ColorMode;
hdma2d_discovery.LayerCfg[1].InputOffset = 0;
hdma2d_discovery.Instance = DMA2D;
/* DMA2D Initialization */
if(HAL_DMA2D_Init(&hdma2d_discovery) == HAL_OK)
{
if(HAL_DMA2D_ConfigLayer(&hdma2d_discovery, 1) == HAL_OK)
{
if (HAL_DMA2D_Start(&hdma2d_discovery, (uint32_t)pSrc, (uint32_t)pDst, xSize, 1) == HAL_OK)
{
/* Polling For DMA transfer */
HAL_DMA2D_PollForTransfer(&hdma2d_discovery, 25);
}
}
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/