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/**
******************************************************************************
* @file ili9325.c
* @author MCD Application Team
* @version V1.2.3
* @date 03-May-2016
* @brief This file includes the LCD driver for ILI9325 LCD.
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "ili9325.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup Components
* @{
*/
/** @addtogroup ili9325
* @brief This file provides a set of functions needed to drive the
* ILI9325 LCD.
* @{
*/
/** @defgroup ILI9325_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup ILI9325_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup ILI9325_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup ILI9325_Private_Variables
* @{
*/
LCD_DrvTypeDef ili9325_drv =
{
ili9325_Init,
ili9325_ReadID,
ili9325_DisplayOn,
ili9325_DisplayOff,
ili9325_SetCursor,
ili9325_WritePixel,
ili9325_ReadPixel,
ili9325_SetDisplayWindow,
ili9325_DrawHLine,
ili9325_DrawVLine,
ili9325_GetLcdPixelWidth,
ili9325_GetLcdPixelHeight,
ili9325_DrawBitmap,
ili9325_DrawRGBImage,
};
static uint16_t ArrayRGB[320] = {0};
/**
* @}
*/
/** @defgroup ILI9325_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @defgroup ILI9325_Private_Functions
* @{
*/
/**
* @brief Initialize the ILI9325 LCD Component.
* @param None
* @retval None
*/
void ili9325_Init(void)
{
/* Initialize ILI9325 low level bus layer ----------------------------------*/
LCD_IO_Init();
/* Start Initial Sequence --------------------------------------------------*/
ili9325_WriteReg(LCD_REG_0, 0x0001); /* Start internal OSC. */
ili9325_WriteReg(LCD_REG_1, 0x0100); /* Set SS and SM bit */
ili9325_WriteReg(LCD_REG_2, 0x0700); /* Set 1 line inversion */
ili9325_WriteReg(LCD_REG_3, 0x1018); /* Set GRAM write direction and BGR=1. */
ili9325_WriteReg(LCD_REG_4, 0x0000); /* Resize register */
ili9325_WriteReg(LCD_REG_8, 0x0202); /* Set the back porch and front porch */
ili9325_WriteReg(LCD_REG_9, 0x0000); /* Set non-display area refresh cycle ISC[3:0] */
ili9325_WriteReg(LCD_REG_10, 0x0000); /* FMARK function */
ili9325_WriteReg(LCD_REG_12, 0x0000); /* RGB interface setting */
ili9325_WriteReg(LCD_REG_13, 0x0000); /* Frame marker Position */
ili9325_WriteReg(LCD_REG_15, 0x0000); /* RGB interface polarity */
/* Power On sequence -------------------------------------------------------*/
ili9325_WriteReg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
ili9325_WriteReg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
ili9325_WriteReg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
ili9325_WriteReg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude */
ili9325_WriteReg(LCD_REG_16, 0x17B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
ili9325_WriteReg(LCD_REG_17, 0x0137); /* DC1[2:0], DC0[2:0], VC[2:0] */
ili9325_WriteReg(LCD_REG_18, 0x0139); /* VREG1OUT voltage */
ili9325_WriteReg(LCD_REG_19, 0x1d00); /* VDV[4:0] for VCOM amplitude */
ili9325_WriteReg(LCD_REG_41, 0x0013); /* VCM[4:0] for VCOMH */
ili9325_WriteReg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */
ili9325_WriteReg(LCD_REG_33, 0x0000); /* GRAM Vertical Address */
/* Adjust the Gamma Curve (ILI9325) ----------------------------------------*/
ili9325_WriteReg(LCD_REG_48, 0x0007);
ili9325_WriteReg(LCD_REG_49, 0x0302);
ili9325_WriteReg(LCD_REG_50, 0x0105);
ili9325_WriteReg(LCD_REG_53, 0x0206);
ili9325_WriteReg(LCD_REG_54, 0x0808);
ili9325_WriteReg(LCD_REG_55, 0x0206);
ili9325_WriteReg(LCD_REG_56, 0x0504);
ili9325_WriteReg(LCD_REG_57, 0x0007);
ili9325_WriteReg(LCD_REG_60, 0x0105);
ili9325_WriteReg(LCD_REG_61, 0x0808);
/* Set GRAM area -----------------------------------------------------------*/
ili9325_WriteReg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */
ili9325_WriteReg(LCD_REG_81, 0x00EF); /* Horizontal GRAM End Address */
ili9325_WriteReg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */
ili9325_WriteReg(LCD_REG_83, 0x013F); /* Vertical GRAM End Address */
ili9325_WriteReg(LCD_REG_96, 0xA700); /* Gate Scan Line(GS=1, scan direction is G320~G1) */
ili9325_WriteReg(LCD_REG_97, 0x0001); /* NDL,VLE, REV */
ili9325_WriteReg(LCD_REG_106, 0x0000); /* set scrolling line */
/* Partial Display Control -------------------------------------------------*/
ili9325_WriteReg(LCD_REG_128, 0x0000);
ili9325_WriteReg(LCD_REG_129, 0x0000);
ili9325_WriteReg(LCD_REG_130, 0x0000);
ili9325_WriteReg(LCD_REG_131, 0x0000);
ili9325_WriteReg(LCD_REG_132, 0x0000);
ili9325_WriteReg(LCD_REG_133, 0x0000);
/* Panel Control -----------------------------------------------------------*/
ili9325_WriteReg(LCD_REG_144, 0x0010);
ili9325_WriteReg(LCD_REG_146, 0x0000);
ili9325_WriteReg(LCD_REG_147, 0x0003);
ili9325_WriteReg(LCD_REG_149, 0x0110);
ili9325_WriteReg(LCD_REG_151, 0x0000);
ili9325_WriteReg(LCD_REG_152, 0x0000);
/* set GRAM write direction and BGR = 1 */
/* I/D=00 (Horizontal : increment, Vertical : decrement) */
/* AM=1 (address is updated in vertical writing direction) */
ili9325_WriteReg(LCD_REG_3, 0x1018);
/* 262K color and display ON */
ili9325_WriteReg(LCD_REG_7, 0x0173);
/* Set the Cursor */
ili9325_SetCursor(0, 0);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
}
/**
* @brief Enables the Display.
* @param None
* @retval None
*/
void ili9325_DisplayOn(void)
{
/* Power On sequence -------------------------------------------------------*/
ili9325_WriteReg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
ili9325_WriteReg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
ili9325_WriteReg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
ili9325_WriteReg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude*/
ili9325_WriteReg(LCD_REG_16, 0x17B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
ili9325_WriteReg(LCD_REG_17, 0x0137); /* DC1[2:0], DC0[2:0], VC[2:0] */
ili9325_WriteReg(LCD_REG_18, 0x0139); /* VREG1OUT voltage */
ili9325_WriteReg(LCD_REG_19, 0x1d00); /* VDV[4:0] for VCOM amplitude */
ili9325_WriteReg(LCD_REG_41, 0x0013); /* VCM[4:0] for VCOMH */
/* Display On */
ili9325_WriteReg(LCD_REG_7, 0x0173); /* 262K color and display ON */
}
/**
* @brief Disables the Display.
* @param None
* @retval None
*/
void ili9325_DisplayOff(void)
{
/* Power Off sequence ------------------------------------------------------*/
ili9325_WriteReg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
ili9325_WriteReg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
ili9325_WriteReg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
ili9325_WriteReg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude*/
ili9325_WriteReg(LCD_REG_41, 0x0000); /* VCM[4:0] for VCOMH */
/* Display Off */
ili9325_WriteReg(LCD_REG_7, 0x0);
}
/**
* @brief Get the LCD pixel Width.
* @param None
* @retval The Lcd Pixel Width
*/
uint16_t ili9325_GetLcdPixelWidth(void)
{
return (uint16_t)320;
}
/**
* @brief Get the LCD pixel Height.
* @param None
* @retval The Lcd Pixel Height
*/
uint16_t ili9325_GetLcdPixelHeight(void)
{
return (uint16_t)240;
}
/**
* @brief Get the ILI9325 ID.
* @param None
* @retval The ILI9325 ID
*/
uint16_t ili9325_ReadID(void)
{
LCD_IO_Init();
return (ili9325_ReadReg(0x00));
}
/**
* @brief Set Cursor position.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @retval None
*/
void ili9325_SetCursor(uint16_t Xpos, uint16_t Ypos)
{
ili9325_WriteReg(LCD_REG_32, Ypos);
ili9325_WriteReg(LCD_REG_33, (ILI9325_LCD_PIXEL_WIDTH - 1 - Xpos));
}
/**
* @brief Write pixel.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param RGBCode: the RGB pixel color
* @retval None
*/
void ili9325_WritePixel(uint16_t Xpos, uint16_t Ypos, uint16_t RGBCode)
{
/* Set Cursor */
ili9325_SetCursor(Xpos, Ypos);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
/* Write 16-bit GRAM Reg */
LCD_IO_WriteMultipleData((uint8_t*)&RGBCode, 2);
}
/**
* @brief Read pixel.
* @param None
* @retval The RGB pixel color
*/
uint16_t ili9325_ReadPixel(uint16_t Xpos, uint16_t Ypos)
{
/* Set Cursor */
ili9325_SetCursor(Xpos, Ypos);
/* Read 16-bit Reg */
return (LCD_IO_ReadData(LCD_REG_34));
}
/**
* @brief Writes to the selected LCD register.
* @param LCDReg: Address of the selected register.
* @param LCDRegValue: Value to write to the selected register.
* @retval None
*/
void ili9325_WriteReg(uint8_t LCDReg, uint16_t LCDRegValue)
{
LCD_IO_WriteReg(LCDReg);
/* Write 16-bit GRAM Reg */
LCD_IO_WriteMultipleData((uint8_t*)&LCDRegValue, 2);
}
/**
* @brief Reads the selected LCD Register.
* @param LCDReg: address of the selected register.
* @retval LCD Register Value.
*/
uint16_t ili9325_ReadReg(uint8_t LCDReg)
{
/* Read 16-bit Reg */
return (LCD_IO_ReadData(LCDReg));
}
/**
* @brief Sets a display window
* @param Xpos: specifies the X bottom left position.
* @param Ypos: specifies the Y bottom left position.
* @param Height: display window height.
* @param Width: display window width.
* @retval None
*/
void ili9325_SetDisplayWindow(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
/* Horizontal GRAM Start Address */
ili9325_WriteReg(LCD_REG_80, (Ypos));
/* Horizontal GRAM End Address */
ili9325_WriteReg(LCD_REG_81, (Ypos + Height - 1));
/* Vertical GRAM Start Address */
ili9325_WriteReg(LCD_REG_82, ILI9325_LCD_PIXEL_WIDTH - Xpos - Width);
/* Vertical GRAM End Address */
ili9325_WriteReg(LCD_REG_83, ILI9325_LCD_PIXEL_WIDTH - Xpos - 1);
}
/**
* @brief Draw vertical line.
* @param RGBCode: Specifies the RGB color
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param Length: specifies the Line length.
* @retval None
*/
void ili9325_DrawHLine(uint16_t RGBCode, uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint16_t counter = 0;
/* Set Cursor */
ili9325_SetCursor(Xpos, Ypos);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
/* Sent a complete line */
for(counter = 0; counter < Length; counter++)
{
ArrayRGB[counter] = RGBCode;
}
LCD_IO_WriteMultipleData((uint8_t*)&ArrayRGB[0], Length * 2);
}
/**
* @brief Draw vertical line.
* @param RGBCode: Specifies the RGB color
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param Length: specifies the Line length.
* @retval None
*/
void ili9325_DrawVLine(uint16_t RGBCode, uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint16_t counter = 0;
/* set GRAM write direction and BGR = 1 */
/* I/D=00 (Horizontal : increment, Vertical : decrement) */
/* AM=1 (address is updated in vertical writing direction) */
ili9325_WriteReg(LCD_REG_3, 0x1010);
/* Set Cursor */
ili9325_SetCursor(Xpos, Ypos);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
/* Fill a complete vertical line */
for(counter = 0; counter < Length; counter++)
{
ArrayRGB[counter] = RGBCode;
}
/* Write 16-bit GRAM Reg */
LCD_IO_WriteMultipleData((uint8_t*)&ArrayRGB[0], Length * 2);
/* set GRAM write direction and BGR = 1 */
/* I/D=00 (Horizontal : increment, Vertical : decrement) */
/* AM=1 (address is updated in vertical writing direction) */
ili9325_WriteReg(LCD_REG_3, 0x1018);
}
/**
* @brief Displays a bitmap picture.
* @param BmpAddress: Bmp picture address.
* @param Xpos: Bmp X position in the LCD
* @param Ypos: Bmp Y position in the LCD
* @retval None
*/
void ili9325_DrawBitmap(uint16_t Xpos, uint16_t Ypos, uint8_t *pbmp)
{
uint32_t index = 0, size = 0;
/* Read bitmap size */
size = *(volatile uint16_t *) (pbmp + 2);
size |= (*(volatile uint16_t *) (pbmp + 4)) << 16;
/* Get bitmap data address offset */
index = *(volatile uint16_t *) (pbmp + 10);
index |= (*(volatile uint16_t *) (pbmp + 12)) << 16;
size = (size - index)/2;
pbmp += index;
/* Set GRAM write direction and BGR = 1 */
/* I/D=00 (Horizontal : decrement, Vertical : decrement) */
/* AM=1 (address is updated in vertical writing direction) */
ili9325_WriteReg(LCD_REG_3, 0x1008);
/* Set Cursor */
ili9325_SetCursor(Xpos, Ypos);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
LCD_IO_WriteMultipleData((uint8_t*)pbmp, size*2);
/* Set GRAM write direction and BGR = 1 */
/* I/D = 01 (Horizontal : increment, Vertical : decrement) */
/* AM = 1 (address is updated in vertical writing direction) */
ili9325_WriteReg(LCD_REG_3, 0x1018);
}
/**
* @brief Displays picture.
* @param pdata: picture address.
* @param Xpos: Image X position in the LCD
* @param Ypos: Image Y position in the LCD
* @param Xsize: Image X size in the LCD
* @param Ysize: Image Y size in the LCD
* @retval None
*/
void ili9325_DrawRGBImage(uint16_t Xpos, uint16_t Ypos, uint16_t Xsize, uint16_t Ysize, uint8_t *pdata)
{
uint32_t size = 0;
size = (Xsize * Ysize);
/* Set Cursor */
ili9325_SetCursor(Xpos, Ypos);
/* Prepare to write GRAM */
LCD_IO_WriteReg(LCD_REG_34);
LCD_IO_WriteMultipleData((uint8_t*)pdata, size*2);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/