stm32 fsmc 配置好后，端口无任何输出变化，求解答

只看该作者 · 2015-3-25 09:17

使用的是stm32f103z，想用它驱动lcd的，lcd是8位数据宽度，主代码：
/* main function ------------------------------------------------------------------*/
int main(void)
{
RCC_Configuration();

//ENABLE PERIPH CLOCK
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB
| RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE
| RCC_APB2Periph_AFIO, ENABLE);
//
RCC_APB2PeriphClockCmd(RCC_AHBPeriph_FSMC,ENABLE);

//CONFIG PERIPH FUNCTION
GPIO_Configuration();
FSMC_cfg();

GPIO_ResetBits(GPIOD, GPIO_Pin_7);
while(1)
{
wait();
*(vu8 *)(0x60000000)=0x00;
GPIO_SetBits(GPIOB, GPIO_Pin_5);
wait();

*(vu8 *)(0x60000000)=0xff;
GPIO_ResetBits(GPIOB, GPIO_Pin_5);

}
}

//FSMC 配置是这样的，用的是bank1 block1：
void FSMC_cfg(void)
{

FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef  FSMC_NORSRAMTimingInitStructure;

   /*-- FSMC Configuration ----------------------------------------------------*/
FSMC_NORSRAMTimingInitStructure.FSMC_AddressSetupTime = 1;
FSMC_NORSRAMTimingInitStructure.FSMC_AddressHoldTime = 2;
FSMC_NORSRAMTimingInitStructure.FSMC_DataSetupTime = 2;
FSMC_NORSRAMTimingInitStructure.FSMC_BusTurnAroundDuration = 1;
FSMC_NORSRAMTimingInitStructure.FSMC_CLKDivision = 0x00;
FSMC_NORSRAMTimingInitStructure.FSMC_DataLatency = 0x02;
FSMC_NORSRAMTimingInitStructure.FSMC_AccessMode = FSMC_AccessMode_B;

FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM1;

FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;

FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;

FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;

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_AsynchronousWait = FSMC_AsynchronousWait_Disable;

FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;

FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &FSMC_NORSRAMTimingInitStructure;

FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &FSMC_NORSRAMTimingInitStructure;

FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);//

/* Enable FSMC Bank1_NOR Bank */
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);//
}

//这样配置后 NE口 NWE口 DB0-7无任何输出变化