开启UART中断，使用FSMC驱动LCD后，程序进入HardFault_Handle

GPIO_InitTypeDef  GPIO_InitStructure;

        USART_InitTypeDef USART_InitStructure;

        NVIC_InitTypeDef NVIC_InitStructure;

        

        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1 | RCC_APB2Periph_AFIO, ENABLE);



        /*Enable the USART1 Interrupt(使能USART1中断)*/

        NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0); 



        /* Configure the NVIC Preemption Priority Bits */  

  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);

        

        NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;   

        NVIC_InitStructure.NVIC_IRQChannelSubPriority =0;                 

        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

        NVIC_Init(&NVIC_InitStructure);

  

        /* RXD */

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;

  GPIO_Init(GPIOA, &GPIO_InitStructure);   



        /* TXD */

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;

  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

  GPIO_Init(GPIOA, &GPIO_InitStructure);



        USART_InitStructure.USART_BaudRate = BAUD;

        USART_InitStructure.USART_WordLength = USART_WordLength_8b;

        USART_InitStructure.USART_StopBits = USART_StopBits_1;

        USART_InitStructure.USART_Parity = USART_Parity_No;

        USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;

        USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;

        USART_Init(USART1, &USART_InitStructure); 

        

        USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);                                                //接收到数据中断

        USART_ITConfig(USART1, USART_IT_TC, ENABLE);                                                        //传输完成中断

        

        USART_Cmd(USART1, ENABLE);                                                                                                                                //UART1使能

GPIO_InitTypeDef GPIO_InitStructure;



  /* Enable FSMC, GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */

  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);



  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |

                         RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG |

                         RCC_APB2Periph_AFIO, 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_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |

                                GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_14 | 

                                GPIO_Pin_15;

  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

  GPIO_Init(GPIOD, &GPIO_InitStructure);



  /* Set PE.07(D4), PE.08(D5), PE.09(D6), PE.10(D7), PE.11(D8), PE.12(D9), PE.13(D10),

     PE.14(D11), PE.15(D12) as alternate function push pull */

  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);



  /* Set PF.00(A0 (RS)) as alternate function push pull */

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;

  GPIO_Init(GPIOF, &GPIO_InitStructure);



  /* Set PG.12(NE4 (LCD/CS)) as alternate function push pull - CE3(LCD /CS) */

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;

  GPIO_Init(GPIOG, &GPIO_InitStructure);



FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;

  FSMC_NORSRAMTimingInitTypeDef  p;



/*-- FSMC Configuration ------------------------------------------------------*/

/*----------------------- SRAM Bank 4 ----------------------------------------*/

  /* FSMC_Bank1_NORSRAM4 configuration */

  p.FSMC_AddressSetupTime = 0;

  p.FSMC_AddressHoldTime = 0;

  p.FSMC_DataSetupTime = 1;

  p.FSMC_BusTurnAroundDuration = 0;

  p.FSMC_CLKDivision = 0;

  p.FSMC_DataLatency = 0;

  p.FSMC_AccessMode = FSMC_AccessMode_A;



  /* 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_NORSRAM4;

  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_WriteBurst = FSMC_WriteBurst_Disable;

  FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;

  FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;



  FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);  



  /* BANK 4 (of NOR/SRAM Bank 1~4) is enabled */

  FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);

Delay_10ms(5);                                                         /* delay 50 ms */

/* Start Initial Sequence ----------------------------------------------------*/

  LCD_WriteReg(R229,0x8000); /* Set the internal vcore voltage */

  LCD_WriteReg(R0,  0x0001); /* Start internal OSC. */

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