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关于STM32F4DISCOVERY板子中FSMC应用的问题

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考哥|  楼主 | 2018-7-30 14:10 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
我硬件接法是D0-D15用做数据线16位,NOE接RD,NWE接WR,A23接RS,NE1接CS,配置文件如下,不知道哪里有问题,程序写进去就会让MCU不能仿真了,只能重新擦过才能用

typedef struct
{
  vu16 LCD_REG;
  vu16 LCD_RAM;
} LCD_TypeDef;
/* LCD is connected to the FSMC_Bank1_NOR/SRAM1 and NE1 is used as ship select signal */
#define LCD_BASE   ((u32)(0x60000000 | 0x00000000))
#define LCD         ((LCD_TypeDef *) LCD_BASE)

void LCDWriteREG(u16 LCDREG,u16 Value)
{
  LCD->LCD_REG  = LCDREG;   //写寄存器
  LCD->LCD_RAM  = Value;    //写值
}
void FSMCLCDConfig(void)
{
  FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
  FSMC_NORSRAMTimingInitTypeDef  p;
/*-- FSMC Configuration ------------------------------------------------------*/
/*----------------------- SRAM Bank 1 ----------------------------------------*/
  /* FSMC_Bank1_NORSRAM4 configuration */
  p.FSMC_AddressSetupTime = 1;
  p.FSMC_AddressHoldTime = 2;
  p.FSMC_DataSetupTime = 2;
  p.FSMC_BusTurnAroundDuration = 2;
  p.FSMC_CLKDivision = 2;
  p.FSMC_DataLatency = 2;
  p.FSMC_AccessMode = FSMC_AccessMode_B;
  /* 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_NORSRAM1;//选择块1-1
  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 1 (of NOR/SRAM Bank 1~1) is enabled */
  FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);
     
}
void LCD_CtrlLinesConfig(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  /* Enable FSMC, GPIOD, GPIOE  clocks */
  RCC_AHB3PeriphClockCmd(RCC_AHB3Periph_FSMC, ENABLE);
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_GPIOE
                         , 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_4 | GPIO_Pin_5 | GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  //GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
  /* Set PE.02(A23 (RS)) as alternate function push pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
  GPIO_Init(GPIOE, &GPIO_InitStructure);
  /* Set PD.7(NE1 (LCD/CS)) as alternate function push pull - CE3(LCD /CS) */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
}

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