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 );
}
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