关于stm32f103VE 使用FSMC控制LCD 芯片为ili9488

liuzhekaka · 发表于 2016-11-23 20:09:19

关于stm32f103VEt6 使用FSMC控制LCD  芯片为ili9488 现在能正常读取id  但是没任何显示  实在是找不到问题了  求救大神帮忙分析一下

static void LCD_FSMC_Config ( void )
{
FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef  fsmc_lcd;
FSMC_NORSRAMTimingInitTypeDef  readWriteTiming;
FSMC_NORSRAMTimingInitTypeDef  writeTiming;

/* 使能FSMC时钟*/
RCC_AHBPeriphClockCmd ( RCC_AHBPeriph_FSMC, ENABLE );

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

FSMC_NORSRAMInitStructure.FSMC_Bank                = FSMC_LCD_BACKx;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux       = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType          = FSMC_MemoryType_NOR;
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 = & readWriteTiming;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct    = & writeTiming;

FSMC_NORSRAMInit ( & FSMC_NORSRAMInitStructure );

/* 使能 FSMC_Bank1_NORSRAM4 */
FSMC_NORSRAMCmd ( FSMC_LCD_BACKx, ENABLE );

}