关于STM32F4DISCOVERY板子中FSMC应用的问题

kingheimer · 发表于 2012-3-15 15:23:33

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);
}