FSMC控制LCD，对LCD的寄存器配置，GRAM的读写一头雾水.用的是凌达2.4寸LCD ,控制IC的型号是OTM3225C，都弄了大概3个星期了，没有头绪

wangxing3074

整个程序如下：
int main(void)
{
 RCC_cfg();
 NVIC_Configuration();
 GPIO_cfg();
 FSMC_cfg();
 LCD_cfg();
 while(1)
 {
  LCD_Clear(Blue);
 }
}
void FSMC_cfg(void)
{
 //FSMC_NOR_Init();
 //FSMC_NAND_Init();
 //FSMC_SRAM_Init();
 SystemGpioInit();
 FSMC_LCD_Init_Color(); 
}

void LCD_cfg(void)
{
       //LCD初始化
       LCD_init();
}
void RCC_cfg(void)
{
 //定义错误状态变量
    ErrorStatus HSEStartUpStatus;
     
    //将RCC寄存器重新设置为默认值
    RCC_DeInit();
 
    //打开外部高速时钟晶振
    RCC_HSEConfig(RCC_HSE_ON);
 
    //等待外部高速时钟晶振工作
    HSEStartUpStatus = RCC_WaitForHSEStartUp();
    if(HSEStartUpStatus == SUCCESS)
    {
       //设置AHB时钟(HCLK)为系统时钟
       RCC_HCLKConfig(RCC_SYSCLK_Div1);
 
       //设置高速AHB时钟(APB2)为HCLK时钟
       RCC_PCLK2Config(RCC_HCLK_Div1);
 
       //设置低速AHB时钟(APB1)为HCLK的2分频
       RCC_PCLK1Config(RCC_HCLK_Div2);
            
       //设置FLASH代码延时
       FLASH_SetLatency(FLASH_Latency_2);
 
       //使能预取指缓存
       FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
 
       //设置PLL时钟，为HSE的9倍频 8MHz * 9 = 72MHz
       RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
 
       //使能PLL
       RCC_PLLCmd(ENABLE);
 
       //等待PLL准备就绪
       while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
 
       //设置PLL为系统时钟源
       RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
 
       //判断PLL是否是系统时钟
       while(RCC_GetSYSCLKSource() != 0x08);
    }   
}

void NVIC_Configuration(void)
{

  /* Set the Vector Table base location at 0x08000000 */
  NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);  
}

//GPIO配置
void GPIO_cfg(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
 //打开GPIO时钟，复用功能
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE | RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG, ENABLE);
  //打开FSMC时钟
    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);

     
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

  /*-- GPIO Configuration ------------------------------------------------------*/
  /*  Data lines configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_8 | GPIO_Pin_9 |
                                GPIO_Pin_10 | GPIO_Pin_14 | GPIO_Pin_15;

  GPIO_Init(GPIOD, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = 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);

  /*  Address lines configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 |
                                GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_12 | GPIO_Pin_13 |
                                GPIO_Pin_14 | GPIO_Pin_15;
  GPIO_Init(GPIOF, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 |
                                GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;                           
  GPIO_Init(GPIOG, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin =GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

   /* NE2 NE3 NE4 configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_12;
  //GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;                        //上面配置成GPIO_Mode_AF_PP,用万用表量了没有输出，一直是高电平3.3V,拉不低
  GPIO_Init(GPIOG, &GPIO_InitStructure);
  
    GPIO_ResetBits(GPIOG, GPIO_Pin_9);    
    GPIO_ResetBits(GPIOG, GPIO_Pin_10);
 //GPIO_ResetBits(GPIOG, GPIO_Pin_11);
    GPIO_ResetBits(GPIOG, GPIO_Pin_12);//LCD_CS(1);
        
 GPIO_SetBits(GPIOG, GPIO_Pin_9);
 GPIO_SetBits(GPIOG, GPIO_Pin_10);
 //GPIO_SetBits(GPIOG, GPIO_Pin_11);
 GPIO_SetBits(GPIOG, GPIO_Pin_12);

  /* NCE2 configuration */
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
 GPIO_Init(GPIOD, &GPIO_InitStructure);

  /* NBL0, NBL1 configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
  GPIO_Init(GPIOE, &GPIO_InitStructure); 

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

 //GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
 //GPIO_Init(GPIOF, &GPIO_InitStructure);

   /* INT2 NAND pin configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;          
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
  GPIO_Init(GPIOG, &GPIO_InitStructure);
 
}
void FSMC_LCD_Init_Color(void)
{
   FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
   FSMC_NORSRAMTimingInitTypeDef  pr;
 //总时间14nS"*(16)=224>lcd周期200
 pr.FSMC_AddressSetupTime = 0;//不能小于5
 pr.FSMC_AddressHoldTime = 0;
 pr.FSMC_DataSetupTime = 3;//不能小于9
 pr.FSMC_BusTurnAroundDuration = 0;
 pr.FSMC_CLKDivision = 0;
 pr.FSMC_DataLatency = 0;
 pr.FSMC_AccessMode = FSMC_AccessMode_C;
 
 
 FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;
 FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Enable;//必须使能该处
 FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;
 FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth =FSMC_MemoryDataWidth_16b; //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_WriteBurst = FSMC_WriteBurst_Disable;
 FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = ≺
 FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = ≺
 
 FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
 
 /* Enable FSMC Bank1_NOR Bank */
 FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
}
void SystemGpioInit(void)
{
 GPIO_InitTypeDef GPIO_InitStructure;
 //KEY_LED,USER_LED,LCD_RESET,USB_CON,USB_LED,POWER_MODE
 GPIO_InitStructure.GPIO_Pin = KEY_LED_Gpin7|USER_LED_Gpin8|LCD_RESET_Gpin11|USB_CON_Gpin13|USB_LED_Gpin14|POWER_MODE_Gpin15;
 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 GPIO_Init(GPIOG, &GPIO_InitStructure);

 //关闭各类灯,断开usb连接,置电源工作模式为固定频率模式
 GPIO_SetBits(GPIOG, KEY_LED_Gpin7|USER_LED_Gpin8|LCD_RESET_Gpin11|USB_CON_Gpin13|USB_LED_Gpin14|POWER_MODE_Gpin15);
 //关闭液晶背光
 GPIO_InitStructure.GPIO_Pin = LCD_LED_Dpin4;
 GPIO_Init(GPIOA, &GPIO_InitStructure);

 GPIO_SetBits(GPIOA,LCD_LED_Dpin4);

 GPIO_ResetBits(GPIOA,LCD_LED_Dpin4);
 //Nor Flash 复位信号
// GPIO_InitStructure.GPIO_Pin = NOR_RESET_Epin6;
// GPIO_Init(GPIOE, &GPIO_InitStructure);

// GPIO_SetBits(GPIOE,NOR_RESET_Epin6);
}

void LCD_init(void)
{       
        GPIO_ResetBits(GPIOG, GPIO_Pin_12);//LCD_CS(0);//
  GPIO_ResetBits(GPIOF, GPIO_Pin_0);//LCD_RS(0);//
  GPIO_ResetBits(GPIOD, GPIO_Pin_5);
  GPIO_ResetBits(GPIOD, GPIO_Pin_4);

     GPIO_SetBits(GPIOG, GPIO_Pin_12);//LCD_CS(1);
        GPIO_SetBits(GPIOF, GPIO_Pin_0);//LCD_RS(1);//
        GPIO_SetBits(GPIOD, GPIO_Pin_5);//LCD_WR(1);  
        GPIO_SetBits(GPIOD, GPIO_Pin_4);//LCD_RD(1);
 

        GPIO_SetBits(GPIOG, GPIO_Pin_11);//LCD_RST(1) ;
        _delay_(2);//Delay(2);        
        GPIO_ResetBits(GPIOG, GPIO_Pin_11);//LCD_RST(0);
        _delay_(2);          
        GPIO_SetBits(GPIOG, GPIO_Pin_11);//LCD_RST(1);
        _delay_(2);
          {

                W_COM1(0XE3,0X3008);                            //以下所有行是厂家给的初始化代码，但不知道是什么原理，也是我的问题所在，都弄了大概3个星期了，没有头绪  
              W_COM1(0XE7,0X0012);
                W_COM1(0XEF,0X1231);

                W_COM1(0x01, 0x0000); // set SS and SM bit            0000
                W_COM1(0x02, 0x0700); // set 1 line inversion            0700
                W_COM1(0x03, 0x1080); // set GRAM write direction and BGR=1.
                W_COM1(0x04, 0x0000); // Resize register
                W_COM1(0x08, 0x0207); // set the back porch and front porch
                W_COM1(0x09, 0x0000); // set non-display area refresh cycle ISC[3:0]
                W_COM1(0x0A, 0x0000); // FMARK function
                W_COM1(0x0C, 0x0000); // RGB interface setting
                W_COM1(0x0D, 0x0000); // Frame marker Position
                W_COM1(0x0F, 0x0000); // RGB interface polarity
                //--------------Power On sequence ---------//
                W_COM1(0x10, 0x0000); // SAP, BT[3:0], AP, DSTB, SLP, STB
                W_COM1(0x11, 0x0007); // DC1[2:0], DC0[2:0], VC[2:0]
                W_COM1(0x12, 0x0000); // VREG1OUT voltage
                W_COM1(0x13, 0x0000); // VDV[4:0] for VCOM amplitude
                _delay_(2);//Delay(2); // Dis-charge capacitor power voltage
                W_COM1(0x10, 0x1290); // SAP, BT[3:0], AP, DSTB, SLP, STB
                W_COM1(0x11, 0x0227); // DC1[2:0], DC0[2:0], VC[2:0]
                _delay_(1);//Delay(1); // Delay 50ms
                W_COM1(0x12, 0x001A); // Internal reference voltage= Vci;
                Delay(1); // Delay 50ms
                W_COM1(0x13, 0x1800); // Set VDV[4:0] for VCOM amplitude
                W_COM1(0x29, 0x0028); // Set VCM[5:0] for VCOMH
                W_COM1(0x2B, 0x000C); // Set Frame Rate
                _delay_(1);//Delay(1); // Delay 50ms

                // ----------- Adjust the Gamma Curve ----------//
                W_COM1(0x30, 0x0000);
                W_COM1(0x31, 0x0305);
                W_COM1(0x32, 0x0003);
                W_COM1(0x35, 0x0304);
                W_COM1(0x36, 0x000F);
                W_COM1(0x37, 0x0407);
                W_COM1(0x38, 0x0204);
                W_COM1(0x39, 0x0707);
                W_COM1(0x3C, 0x0403);
                W_COM1(0x3D, 0x1604);

                //------------------ Set GRAM area ---------------//
                W_COM1(0x50, 0x0000); // Horizontal GRAM Start Address
                W_COM1(0x51, 0x00EF); // Horizontal GRAM End Address
                W_COM1(0x52, 0x0000); // Vertical GRAM Start Address
                W_COM1(0x53, 0x013F); // Vertical GRAM Start Address
                W_COM1(0x20, 0x0000); // GRAM horizontal Address
                W_COM1(0x21, 0x0000); // GRAM Vertical Address

                W_COM1(0x60, 0x2700); // Gate Scan Line
                W_COM1(0x61, 0x0001); // NDL,VLE, REV
               
                W_COM1(0x6A, 0x0000); // set scrolling line
                //-------------- Partial Display Control ---------//
                W_COM1(0x80, 0x0000);
                W_COM1(0x81, 0x0000);
                W_COM1(0x82, 0x0000);
                W_COM1(0x83, 0x0000);
                W_COM1(0x84, 0x0000);
                W_COM1(0x85, 0x0000);
                //-------------- Panel Control -------------------//
                W_COM1(0x90, 0x0010);
                W_COM1(0x92, 0x0600);

                W_COM1(0x07, 0x0133); // 262K color and display ON  
                _delay_(1);//Delay(1); // Delay 50ms
         }
}
void W_COM1(u8 cmd,u16 sdata) //根据厂家给的原代码改了一下，不知道这是什么意思，稀里糊涂
{       
 u16 temp;
    temp=sdata;
    GPIO_ResetBits(GPIOF, GPIO_Pin_0);//LCD_RS(0);//下指令
    GPIO_ResetBits(GPIOG, GPIO_Pin_12);//LCD_CS(0);
    *(__IO uint16_t *) (Bank1_LCD_C)= cmd;//DATAOUT(cmd);
    GPIO_ResetBits(GPIOD, GPIO_Pin_5);//LCD_WR(0);
    GPIO_SetBits(GPIOD, GPIO_Pin_5);//LCD_WR(1);        

    GPIO_SetBits(GPIOF, GPIO_Pin_0);//LCD_RS(1);//下參數
 *(__IO uint16_t *) (Bank1_LCD_D)= sdata;              //#define Bank1_LCD_D    ((uint32_t)0x6c000002) //#define Bank1_LCD_C    ((uint32_t)0x6c000000)
    //DATAOUT(sdata);
 //DATAOUT(temp);  
 //DATAOUT(temp);  
    GPIO_ResetBits(GPIOD, GPIO_Pin_5);//LCD_WR(0);
 GPIO_ResetBits(GPIOD, GPIO_Pin_5);//LCD_WR(0);        
 GPIO_ResetBits(GPIOD, GPIO_Pin_5);//LCD_WR(0);
 GPIO_ResetBits(GPIOD, GPIO_Pin_5);//LCD_WR(0);       
 GPIO_ResetBits(GPIOD, GPIO_Pin_5);//LCD_WR(0);
 GPIO_ResetBits(GPIOD, GPIO_Pin_5);//LCD_WR(0);
    GPIO_SetBits(GPIOD, GPIO_Pin_5);//LCD_WR(1);         
 GPIO_SetBits(GPIOD, GPIO_Pin_5);//LCD_WR(1); 
 GPIO_SetBits(GPIOD, GPIO_Pin_5);//LCD_WR(1);         
 GPIO_SetBits(GPIOD, GPIO_Pin_5);//LCD_WR(1);
    GPIO_SetBits(GPIOF, GPIO_Pin_0);//LCD_CS(1);
}

还有那个什么RS=0,=1的问题
我将LCD 映射到Bank1的NE4上
#define Bank1_LCD_D    ((uint32_t)0x6c000002)
#define Bank1_LCD_C    ((uint32_t)0x6c000000)
接下来就是W_COM1();这个函数的具体实现了
这个是真心不懂，到现在都不知道LCD有没有初始化好，更不要说显示图片，字符之类的了
求高手指点，万分感激，请吃饭、K歌……，QQ70499619,电话15502121063

wangxing3074

回复【楼主位】wangxing3074:
---------------------------------
QQ错了
是704993619

wangxing3074

 

正点原子

不用库的，论坛有参考。

wangxing3074

当LCD的这些脚CS/RS/WR/RD与FSMC的相应管脚连接好以后
就不需要人为的控制了？
比如在写的时候：
void W_COM1(uint8_t LCD_Reg, uint16_t LCD_RegValue)
{  
  *(__IO uint16_t *) (Bank1_LCD_C)= LCD_Reg; 
  _delay_(2); 
  *(__IO uint16_t *) (Bank1_LCD_D)= LCD_RegValue;
}
 W_COM1(0x01, 0x0000);
FSMC会自动设置相应管脚的电平？

maninman1981

回复【5楼】wangxing3074:
---------------------------------
似乎没看到你将IO口映射到FSMC功能。
*(__IO uint16_t *) (Bank1_LCD_C)= LCD_Reg;  
  _delay_(2);  
  *(__IO uint16_t *) (Bank1_LCD_D)= LCD_RegValue; 
这个delay应该取消。


GPIO_ResetBits(GPIOG, GPIO_Pin_12);//LCD_CS(0);//
  GPIO_ResetBits(GPIOF, GPIO_Pin_0);//LCD_RS(0);//
  GPIO_ResetBits(GPIOD, GPIO_Pin_5);
  GPIO_ResetBits(GPIOD, GPIO_Pin_4);

     GPIO_SetBits(GPIOG, GPIO_Pin_12);//LCD_CS(1);
        GPIO_SetBits(GPIOF, GPIO_Pin_0);//LCD_RS(1);// 
        GPIO_SetBits(GPIOD, GPIO_Pin_5);//LCD_WR(1);   
        GPIO_SetBits(GPIOD, GPIO_Pin_4);//LCD_RD(1);
 CS、RS、WR、RD因该是FSMC自动完成的。
你应该再去领悟下FSMC的说明文档。

wangxing3074

回复【6楼】maninman1981:
---------------------------------
void W_COM1(uint8_t LCD_Reg, uint16_t LCD_RegValue)
{  
  *(__IO uint16_t *) (Bank1_LCD_C)= LCD_Reg; 
  //_delay_(2); 
  *(__IO uint16_t *) (Bank1_LCD_D)= LCD_RegValue;
}

  //_delay_(2); 是我自己测试加的，本来没有
现在的感觉FSMC没有向LCD的寄存器写成功
写的时候CS的电平一直为高，就是说还没有选中LCD
不知道是什么原因？难道要手动设置CS的电平？

wangxing3074

回复【7楼】wangxing3074:
---------------------------------
额~~~~~，辛苦大家了
液晶坏了，不好意思

正点原子

倒....

wangxing3074

回复【9楼】正点原子:
---------------------------------
原子哥，还有个小问题
就是程序烧写好以后，仿真器还没有断开的情况下 并且设置成Reset and run，
屏幕可以正常显示
但是重新上电后，就一直处于白屏状态，
是不FSMC的那些设置有问题：
pr.FSMC_AddressSetupTime = 0x02;
pr.FSMC_AddressHoldTime = 0x03;
pr.FSMC_DataSetupTime = 0x05;
pr.FSMC_BusTurnAroundDuration = 0;
pr.FSMC_CLKDivision = 0;
pr.FSMC_DataLatency = 0;

是不是太快了？LCD的速度跟不上？

正点原子

103最快就那样了。
你是不是没复位？把JTAG拔了，重新按复位试试。

wangxing3074

回复【11楼】正点原子:
---------------------------------
就是拔了之后，重新上电就一直处于白屏状态

正点原子

ID读取正常么？

结束亦是开始

回复【10楼】wangxing3074:
---------------------------------
你搞定了么，我也碰到这问题了，好几天了还没解决 ，HELP

结束亦是开始

回复【13楼】正点原子:
---------------------------------
原子哥，看到论坛里好几个上电白屏的 复位后就能正常工作的帖子了，最后都没有合适的解决方法。我也遇到了 求助

正点原子

回复【15楼】结束亦是开始:
---------------------------------
是不是外接了其他东西？

结束亦是开始

回复【16楼】正点原子:
---------------------------------
同样的程序，原子的板子上不会有这种现象，我自己的板子就有，硬件的问题，但我也不知道问题出在哪里。。。。。接了个语音模块，接了个继电器，还有一个射频接收模块（串口一和32通信）

正点原子

回复【17楼】结束亦是开始:
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检查焊接吧。