FSMC移植的困惑

龙胜阳子 · 发表于 2013-10-3 19:37:10

在FSMC移植过程中一直无法显示，无意中碰到PD6，TFT可以显示了，但是屏幕一直在闪。程序里面根本没有用到PD6啊。求解
void LCD_GPIO_Init(void)                //LCD控制IO口初始化
{
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC |
                         RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE , ENABLE);

///////////////////////LCD_Bus IO口//////////////////////////////////
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_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOE, &GPIO_InitStructure);

///////////////////////LCD复位IO口//////////////////////////////////
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 ;  //PE1->LCD_RESET
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOE, &GPIO_InitStructure);

///////////////////////控制IO口//////////////////////////////////
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; //背光PD13->Light
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 |GPIO_Pin_5 | GPIO_Pin_7 | GPIO_Pin_11; //PD4-> OE,PD5->WE,PD7->CS,PD11->RS
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
}

void LCD_FSMC_Init(void) //LCD FSMC初始化
{

FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef WriteTiming;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);

WriteTiming.FSMC_AddressSetupTime = 0x02;                                                 //地址建立时间
WriteTiming.FSMC_AddressHoldTime = 0x00;                                                 //地址保持时间
WriteTiming.FSMC_DataSetupTime = 0x05;                                                 //数据建立时间
WriteTiming.FSMC_BusTurnAroundDuration = 0x00;                                            //总线恢复时间
WriteTiming.FSMC_CLKDivision = 0x00;                                                      //时钟分频
WriteTiming.FSMC_DataLatency = 0x00;                                                      //数据保持时间
WriteTiming.FSMC_AccessMode = FSMC_AccessMode_B;                                          //在地址\数据线不复用的情况下，ABCD模式的区别不大

FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM1;                                //NOR FLASH的BANK1
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;              //数据与地址总线不复用
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;                          //存储器类型NOR FLASH
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;                //数据宽度为16位
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;            //使用异步写模式，禁止突发模式
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;          //只在突发模式下有效，等待信号极性为低
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;                          //禁止非对齐性突发模式
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState; //仅在突发模式下有效，NWAIT信号在什么周期产生
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;               //写使能
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;                      //仅在突发模式下有效，禁用NWAIT信号
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;                  //禁止扩展模式，扩展模式可以使用独立的读、写模式
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;                      //禁止突发写操作
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &WriteTiming;                  //配置读写时序
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &WriteTiming;                         //配置写时序

FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);            //初始化FSMC配置
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);                                             //使能FSMC Bank1_SRAM Bank

}