fsmc总线驱动RA8806LCD屏异常

只看该作者 · 2015-9-21 10:25

新调试RA8806 LCD显示屏，分辨率320*240，单纯用IO模拟可以正常驱动，但是采用fsmc总线模式就没有任何反应，哪位大神帮看看我的配置有啥问题？？谢谢？？RS线接的是A0

#define Bank1_LCD_C ((uint32_t)0x6C000001) //disp Data ADDR RS=1
#define Bank1_LCD_D ((uint32_t)0x6C000000)    //disp Reg ADDR RS=0

void FSMC_lcd_Init(void)
{
  FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
  FSMC_NORSRAMTimingInitTypeDef  p;
  GPIO_InitTypeDef GPIO_InitStructure;

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

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_14 | GPIO_Pin_15;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

  /* NOE and NWE configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 |GPIO_Pin_5;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  /*NWAIT*/
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;

   GPIO_Init(GPIOD, &GPIO_InitStructure);

  //RST引脚
  GPIO_InitStructure.GPIO_Pin =GPIO_Pin_11;
  GPIO_InitStructure.GPIO_Mode =GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed =GPIO_Speed_50MHz;
  GPIO_Init(GPIOG,&GPIO_InitStructure);

  // 设置PF.00(A0 (RS))  为复用推挽输出
  GPIO_InitStructure.GPIO_Pin =GPIO_Pin_0;
  GPIO_InitStructure.GPIO_Mode =GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed =GPIO_Speed_50MHz;
  GPIO_Init(GPIOF,&GPIO_InitStructure);

  // NE4 configuration
  // 设置PG.12(NE4 (LCD/CS)) 为复用推挽输出 - CE3(LCD /CS)
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
  GPIO_InitStructure.GPIO_Mode =GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed =GPIO_Speed_50MHz;
  GPIO_Init(GPIOG, &GPIO_InitStructure);

  LCD_RST_RESET;
  LCD_RD_SET;
  LCD_WD_SET;

  LCD_CS_SET;

/*-- FSMC Configuration ------------------------------------------------------*/
  p.FSMC_AddressSetupTime =5; //地址建立时间(ADDSET)为1个HCLK 1/72M=13.5ns
  p.FSMC_AddressHoldTime =0; //地址保持时间(ADDHLD)模式A未用到
  p.FSMC_DataSetupTime =50;    //数据保持时间(DATAST)
  p.FSMC_BusTurnAroundDuration = 0;  //总线恢复时间
  p.FSMC_CLKDivision = 0;  //始终分频银子
  p.FSMC_DataLatency = 0; //数据产生时间
  p.FSMC_AccessMode = FSMC_AccessMode_A; //模式A

  FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;
  FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;  //禁止地址数据线服用
  FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM; //存储器类型为SRAM
  FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;  //存储器数据宽度为8位
  FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable; //关闭突发模式访问
  FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low; //等待模式优先级，只有在是能突发访问模式有效
  FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;  //关闭Wrapped burst access mode，只有在使能突发访问模式才有效
  FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState; //等待信号设置，只有在使能突发访问模式才有效
  FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable; //使能这个BANK的写操作
  FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable; //使能/关闭等待信息设置，只在使能突发访问模式才有效
  FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable; //关闭Extend Mode
  FSMC_NORSRAMInitStructure.FSMC_AsyncWait = FSMC_AsyncWait_Disable;
  FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;  //关闭Write Burst Mode
  FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
  FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;

  FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);

  // Enable FSMC Bank1_SRAM Bank
  FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
}

//软复位
void LCD_SOFTRST()
{
mDelaymS(2);
LCD_RST_RESET;
mDelaymS(10);
LCD_RST_SET;
mDelaymS(5);
}

//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
void LCD_CmdWrite(unsigned char index)//8080
{
*(__IO uint8_t *) (Bank1_LCD_C)= index;

}

//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

void LCD_DataWrite(unsigned char val)
{
while(BUSY==0);
*(__IO uint8_t *) (Bank1_LCD_D)= val;

}

//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
unsigned char LCD_CmdRead(unsigned char index)
{
unsigned char Data;

*(__IO uint8_t *) (Bank1_LCD_C)= index;
*(__IO uint8_t *) (Bank1_LCD_D)= 0xFF;

Data = *(__IO uint8_t *) (Bank1_LCD_D);
return Data;
}