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发表于 2016-6-13 16:37:30
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GPIO_InitTypeDef GPIO_InitStructure;
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef readWriteTiming;
FSMC_NORSRAMTimingInitTypeDef writeTiming;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC,ENABLE); //使能FSMC时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOD|RCC_APB2Periph_GPIOE|RCC_APB2Periph_GPIOG,ENABLE);//使能PORTB,D,E,G以及AFIO复用功能时钟 RCC_APB2Periph_AFIO
GPIO_InitStructure.GPIO_Pin = LCDBackLightPortBit; //PB0 推挽输出 背光
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(LCDBackLightPort, &GPIO_InitStructure);
//PORTD复用推挽输出
GPIO_InitStructure.GPIO_Pin = FSMC_D1_PortBit;//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; // //PORTD复用推挽输出
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(FSMC_D1_Port, &GPIO_InitStructure);
// //PORTD复用推挽输出
// 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; // //PORTD复用推挽输出
// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
// GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
// GPIO_Init(GPIOD, &GPIO_InitStructure);
//PORTE复用推挽输出 FE7-FE15
GPIO_InitStructure.GPIO_Pin = FSMC_D2_PortBit;//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; // //PORTD复用推挽输出
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOE, &GPIO_InitStructure);
// //PORTG12复用推挽输出 A0
GPIO_InitStructure.GPIO_Pin =FSMC_RSCS_PortBit;// GPIO_Pin_0|GPIO_Pin_12; // //PORTD复用推挽输出
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(FSMC_RSCS_Port, &GPIO_InitStructure);
//reset port retorration
GPIO_InitStructure.GPIO_Pin =FSMC_Reset_PortBit;// GPIO_Pin_0|GPIO_Pin_12; // //PORTD复用推挽输出
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(FSMC_Reset_Port, &GPIO_InitStructure);
LCD_Reset=0;
delay_ms(100);
LCD_Reset=0;
readWriteTiming.FSMC_AddressSetupTime = 0x01; //地址建立时间（ADDSET）为2个HCLK 1/36M=27ns
readWriteTiming.FSMC_AddressHoldTime = 0x00; //地址保持时间（ADDHLD）模式A未用到
readWriteTiming.FSMC_DataSetupTime = 0x0f; // 数据保存时间为16个HCLK,因为液晶驱动IC的读数据的时候，速度不能太快，尤其对1289这个IC。
readWriteTiming.FSMC_BusTurnAroundDuration = 0x00;
readWriteTiming.FSMC_CLKDivision = 0x00;
readWriteTiming.FSMC_DataLatency = 0x00;
readWriteTiming.FSMC_AccessMode = FSMC_AccessMode_A; //模式A
writeTiming.FSMC_AddressSetupTime = 0x00; //地址建立时间（ADDSET）为1个HCLK
writeTiming.FSMC_AddressHoldTime = 0x00; //地址保持时间（A
writeTiming.FSMC_DataSetupTime = 0x03; ////数据保存时间为4个HCLK
writeTiming.FSMC_BusTurnAroundDuration = 0x00;
writeTiming.FSMC_CLKDivision = 0x00;
writeTiming.FSMC_DataLatency = 0x00;
writeTiming.FSMC_AccessMode = FSMC_AccessMode_A; //模式A
LCD_LED=0;//关背光灯
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;// 这里我们使用NE4 ，也就对应BTCR[6],[7]。
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable; // 不复用数据地址
FSMC_NORSRAMInitStructure.FSMC_MemoryType =FSMC_MemoryType_SRAM;// FSMC_MemoryType_SRAM; //SRAM
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;//存储器数据宽度为16bit
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode =FSMC_BurstAccessMode_Disable;// FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait=FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable; // 存储器写使能
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Enable; // 读写使用不同的时序
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &readWriteTiming; //读写时序
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &writeTiming; //写时序
FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure); //初始化FSMC配置
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE); // 使能BANK1
GPIO_ResetBits(GPIOE, GPIO_Pin_1);
delay_ms(500);
GPIO_SetBits(GPIOE, GPIO_Pin_1 );
delay_ms(800);
delay_ms(50); // delay 50 ms
LCD_WriteReg(0x0000,0x0001);
delay_ms(50); // delay 50 ms
lcddev.id = LCD_ReadReg(0x0000);
if(lcddev.id<0XFF||lcddev.id==0XFFFF||lcddev.id==0X9300)//读到ID不正确,新增lcddev.id==0X9300判断，因为9341在未被复位的情况下会被读成9300
{
//尝试9341 ID的读取
LCD_WR_REG(0XD3);
LCD_RD_DATA(); //dummy read
LCD_RD_DATA(); //读到0X00
lcddev.id=LCD_RD_DATA(); //读取93
lcddev.id<<=8;
lcddev.id|=LCD_RD_DATA(); //读取41
if(lcddev.id!=0X9341) //非9341,尝试是不是6804
{
LCD_WR_REG(0XBF);
LCD_RD_DATA(); //dummy read
LCD_RD_DATA(); //读回0X01
LCD_RD_DATA(); //读回0XD0
lcddev.id=LCD_RD_DATA();//这里读回0X68
lcddev.id<<=8;
lcddev.id|=LCD_RD_DATA();//这里读回0X04
if(lcddev.id!=0X6804) //也不是6804,尝试看看是不是NT35310
{
LCD_WR_REG(0XD4);
LCD_RD_DATA(); //dummy read
LCD_RD_DATA(); //读回0X01
lcddev.id=LCD_RD_DATA(); //读回0X53
lcddev.id<<=8;
lcddev.id|=LCD_RD_DATA(); //这里读回0X10
if(lcddev.id!=0X5310) //也不是NT35310,尝试看看是不是NT35510
{
LCD_WR_REG(0XDA00);
LCD_RD_DATA(); //读回0X00
LCD_WR_REG(0XDB00);
lcddev.id=LCD_RD_DATA();//读回0X80
lcddev.id<<=8;
LCD_WR_REG(0XDC00);
lcddev.id|=LCD_RD_DATA();//读回0X00
if(lcddev.id==0x8000)lcddev.id=0x5510;//NT35510读回的ID是8000H,为方便区分,我们强制设置为5510
}
}
}
} |
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发表于 2016-6-13 15:42:01
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