ili9320.c

OV7670模组带转接板资料

#include "stm32f10x_lib.h"
#include "ili9320.h"
#include "ili9320_font.h"

u16 DeviceCode;

/* Private typedef -----------------------------------------------------------*/
typedef struct
{
  vu16 LCD_REG;
  vu16 LCD_RAM;
} LCD_TypeDef;

/* LCD is connected to the FSMC_Bank1_NOR/SRAM4 and NE4 is used as ship select signal */
#define LCD_BASE    ((u32)(0x60000000 | 0x0C000000))
#define LCD         ((LCD_TypeDef *) LCD_BASE)
////////////////////////////////////////////////////////////////////////////////////////
/*******************************************************************************
* Function Name  : LCD_CtrlLinesConfig
* Description    : Configures LCD Control lines (FSMC Pins) in alternate function
                   Push-Pull mode.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_CtrlLinesConfig(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Enable FSMC, GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |
                         RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG |
                         RCC_APB2Periph_AFIO, ENABLE);

  /* Set PD.00(D2), PD.01(D3), PD.04(NOE), PD.05(NWE), PD.08(D13), PD.09(D14),
     PD.10(D15), PD.14(D0), PD.15(D1) as alternate 
     function push pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |
                                GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_14 | 
                                GPIO_Pin_15;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  /* Set PE.07(D4), PE.08(D5), PE.09(D6), PE.10(D7), PE.11(D8), PE.12(D9), PE.13(D10),
     PE.14(D11), PE.15(D12) as alternate function push pull */
  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | 
                                GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | 
                                GPIO_Pin_15;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

  GPIO_WriteBit(GPIOE, GPIO_Pin_6, Bit_SET);
  /* Set PF.00(A0 (RS)) as alternate function push pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
  GPIO_Init(GPIOF, &GPIO_InitStructure);

  /* Set PG.12(NE4 (LCD/CS)) as alternate function push pull - CE3(LCD /CS) */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
  GPIO_Init(GPIOG, &GPIO_InitStructure);
}

/*******************************************************************************
* Function Name  : LCD_FSMCConfig
* Description    : Configures the Parallel interface (FSMC) for LCD(Parallel mode)
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_FSMCConfig(void)
{
  FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
  FSMC_NORSRAMTimingInitTypeDef  p;

/*-- FSMC Configuration ------------------------------------------------------*/
/*----------------------- SRAM Bank 4 ----------------------------------------*/
  /* FSMC_Bank1_NORSRAM4 configuration */
  p.FSMC_AddressSetupTime = 0;
  p.FSMC_AddressHoldTime = 0;
  p.FSMC_DataSetupTime = 2;
  p.FSMC_BusTurnAroundDuration = 0;
  p.FSMC_CLKDivision = 0;
  p.FSMC_DataLatency = 0;
  p.FSMC_AccessMode = FSMC_AccessMode_A;

  /* Color LCD configuration ------------------------------------
     LCD configured as follow:
        - Data/Address MUX = Disable
        - Memory Type = SRAM
        - Data Width = 16bit
        - Write Operation = Enable
        - Extended Mode = Enable
        - Asynchronous Wait = Disable */
  FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;
  FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
  FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;
  FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
  FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
  FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
  FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
  FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
  FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
  FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
  FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
  FSMC_NORSRAMInitStructure.FSMC_AsyncWait = FSMC_AsyncWait_Disable;
  FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
  FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
  FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;

  FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);  

  /* BANK 4 (of NOR/SRAM Bank 1~4) is enabled */
  FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
}


void LCD_X_Init(void)
{
 /* Configure the LCD Control pins --------------------------------------------*/
  LCD_CtrlLinesConfig();

/* Configure the FSMC Parallel interface -------------------------------------*/
  LCD_FSMCConfig();
}


/*******************************************************************************
* Function Name  : LCD_WriteReg
* Description    : Writes to the selected LCD register.
* Input          : - LCD_Reg: address of the selected register.
*                  - LCD_RegValue: value to write to the selected register.
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_WriteReg(u8 LCD_Reg,u16 LCD_RegValue)
{
  /* Write 16-bit Index, then Write Reg */
  LCD->LCD_REG = LCD_Reg;
  /* Write 16-bit Reg */
  LCD->LCD_RAM = LCD_RegValue;
}

/*******************************************************************************
* Function Name  : LCD_ReadReg
* Description    : Reads the selected LCD Register.
* Input          : None
* Output         : None
* Return         : LCD Register Value.
*******************************************************************************/
u16 LCD_ReadReg(u8 LCD_Reg)
{
  /* Write 16-bit Index (then Read Reg) */
  LCD->LCD_REG = LCD_Reg;
  /* Read 16-bit Reg */
  return (LCD->LCD_RAM);
}

/*******************************************************************************
* Function Name  : LCD_WriteRAM_Prepare
* Description    : Prepare to write to the LCD RAM.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_WriteRAM_Prepare(void)
{
  LCD->LCD_REG = R34;
}

/*******************************************************************************
* Function Name  : LCD_WriteRAM
* Description    : Writes to the LCD RAM.
* Input          : - RGB_Code: the pixel color in RGB mode (5-6-5).
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_WriteRAM(u16 RGB_Code)					 
{
  /* Write 16-bit GRAM Reg */
  LCD->LCD_RAM = RGB_Code;
}

/*******************************************************************************
* Function Name  : LCD_ReadRAM
* Description    : Reads the LCD RAM.
* Input          : None
* Output         : None
* Return         : LCD RAM Value.
*******************************************************************************/
u16 LCD_ReadRAM(void)
{
  u16 dummy;
  /* Write 16-bit Index (then Read Reg) */
  LCD->LCD_REG = R34; /* Select GRAM Reg */
  /* Read 16-bit Reg */
  dummy = LCD->LCD_RAM; 
  return LCD->LCD_RAM;
}

/*******************************************************************************
* Function Name  : LCD_SetCursor
* Description    : Sets the cursor position.
* Input          : - Xpos: specifies the X position.
*                  - Ypos: specifies the Y position. 
* Output         : None
* Return         : None
*******************************************************************************/


void LCD_SetCursor(u16 Xpos, u16 Ypos)
{
  LCD_WriteReg(0x06,Ypos>>8);
  LCD_WriteReg(0x07,Ypos);
  
  LCD_WriteReg(0x02,Xpos>>8);
  LCD_WriteReg(0x03,Xpos);  
}			 


void Delay(u32 nCount)
{
 u32 TimingDelay; 
 while(nCount--)
   {
    for(TimingDelay=0;TimingDelay<10000;TimingDelay++);
   }
}

/****************************************************************************
* 名    称：void ili9320_Initializtion()
* 功    能：初始化 ILI9320 控制器
* 入口参数：无
* 出口参数：无
* 说    明：
* 调用方法：ili9320_Initializtion();
****************************************************************************/
void ili9320_Initializtion()
{
  /*****************************
  **    硬件连接说明          **
  ** STM32         ili9320    **
  ** PE0~15 <----> DB0~15     **
  ** PD15   <----> nRD        **
  ** PD14   <----> RS         **
  ** PD13   <----> nWR        **
  ** PD12   <----> nCS        **
  ** PD11   <----> nReset     **
  ** PC0    <----> BK_LED     **
  ******************************/
  u16 i;
  LCD_X_Init();
  Delay(5); /* delay 50 ms */
//  LCD_WriteReg(0x0000,0x0001);  
  Delay(5); /* delay 50 ms */			//start internal osc
  DeviceCode = LCD_ReadReg(0x0000);
//  DeviceCode = 0x9320;
//	DeviceCode = 0x9325;
	if(DeviceCode==0x9325||DeviceCode==0x9328)
	{
  		LCD_WriteReg(0x00e7,0x0010);      
        LCD_WriteReg(0x0000,0x0001);  			//start internal osc
        LCD_WriteReg(0x0001,0x0100);     
        LCD_WriteReg(0x0002,0x0700); 				//power on sequence                     
        LCD_WriteReg(0x0003,(1<<12)|(1<<5)|(1<<4) ); 	//65K 
        LCD_WriteReg(0x0004,0x0000);                                   
        LCD_WriteReg(0x0008,0x0207);	           
        LCD_WriteReg(0x0009,0x0000);         
        LCD_WriteReg(0x000a,0x0000); 				//display setting         
        LCD_WriteReg(0x000c,0x0001);				//display setting          
        LCD_WriteReg(0x000d,0x0000); 				//0f3c          
        LCD_WriteReg(0x000f,0x0000);
//Power On sequence //
        LCD_WriteReg(0x0010,0x0000);   
        LCD_WriteReg(0x0011,0x0007);
        LCD_WriteReg(0x0012,0x0000);                                                                 
        LCD_WriteReg(0x0013,0x0000);                 
        for(i=50000;i>0;i--);
		for(i=50000;i>0;i--);
        LCD_WriteReg(0x0010,0x1590);   
        LCD_WriteReg(0x0011,0x0227);
        for(i=50000;i>0;i--);
		for(i=50000;i>0;i--);
        LCD_WriteReg(0x0012,0x009c);                  
        for(i=50000;i>0;i--);
		for(i=50000;i>0;i--);
        LCD_WriteReg(0x0013,0x1900);   
        LCD_WriteReg(0x0029,0x0023);
        LCD_WriteReg(0x002b,0x000e);
        for(i=50000;i>0;i--);
		for(i=50000;i>0;i--);
        LCD_WriteReg(0x0020,0x0000);                                                            
        LCD_WriteReg(0x0021,0x0000);           
///////////////////////////////////////////////////////      
        for(i=50000;i>0;i--);
		for(i=50000;i>0;i--);
        LCD_WriteReg(0x0030,0x0007); 
        LCD_WriteReg(0x0031,0x0707);   
        LCD_WriteReg(0x0032,0x0006);
        LCD_WriteReg(0x0035,0x0704);
        LCD_WriteReg(0x0036,0x1f04); 
        LCD_WriteReg(0x0037,0x0004);
        LCD_WriteReg(0x0038,0x0000);        
        LCD_WriteReg(0x0039,0x0706);     
        LCD_WriteReg(0x003c,0x0701);
        LCD_WriteReg(0x003d,0x000f);
        for(i=50000;i>0;i--);
		for(i=50000;i>0;i--);
        LCD_WriteReg(0x0050,0x0000);