用STM32F103ZET6的FSMC驱动正点原子的4.3寸TFT电容屏出现花屏

KarlinTarvile · 发表于 2017-8-31 17:59:17

今天用原子提供的代码尝试了一边FSMC驱动TFT，结果代码走下来之后出现花屏现象。在主函数中初始化之后就一直让它循环蓝屏，但是不知道是什么原因总是花屏，换了颜色还是这样，我不知道是不是清屏函数出现问题，还请各位大神指点

以下是对FSMC的配置代码
  readWriteTiming.FSMC_AddressSetupTime = 0x01;    //μØÖ·½¨á￠ê±¼ä￡¨ADDSET￡©Îa2¸öHCLK 1/36M=27ns
  readWriteTiming.FSMC_AddressHoldTime = 0x00;    //μØÖ·±￡3Öê±¼ä￡¨ADDHLD￡©Ä￡ê½AÎ′óÃμ½
  readWriteTiming.FSMC_DataSetupTime = 0x0f;    // êy¾Y½¨á￠ê±¼äÎa16¸öHCLK,òòÎaòo¾§Çy¶ˉICμÄ¶áêy¾YμÄê±oò￡¬Ëù¶è2»Äüì«¿ì￡¬óèÆä¶Ô1289Õa¸öIC¡￡
  readWriteTiming.FSMC_BusTurnAroundDuration = 0x00;
  readWriteTiming.FSMC_CLKDivision = 0x00;
  readWriteTiming.FSMC_DataLatency = 0x00;
  readWriteTiming.FSMC_AccessMode = FSMC_AccessMode_A;    //Ä￡ê½A

writeTiming.FSMC_AddressSetupTime = 0x00;    //μØÖ·½¨á￠ê±¼ä￡¨ADDSET￡©Îa1¸öHCLK
  writeTiming.FSMC_AddressHoldTime = 0x00;    //μØÖ·±￡3Öê±¼ä￡¨A
  writeTiming.FSMC_DataSetupTime = 0x03;    ////êy¾Y±￡′æê±¼äÎa4¸öHCLK
  writeTiming.FSMC_BusTurnAroundDuration = 0x00;
  writeTiming.FSMC_CLKDivision = 0x00;
  writeTiming.FSMC_DataLatency = 0x00;
  writeTiming.FSMC_AccessMode = FSMC_AccessMode_A;    //Ä￡ê½A

  FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;//  ÕaàïÎòÃÇê1óÃNE4 ￡¬ò2¾í¶Ôó|BTCR[6],[7]¡￡
  FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable; // 2»¸′óÃêy¾YμØÖ·
  FSMC_NORSRAMInitStructure.FSMC_MemoryType =FSMC_MemoryType_SRAM;// FSMC_MemoryType_SRAM;  //SRAM
  FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;//′æ′￠Æ÷êy¾Y¿í¶èÎa16bit
  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; //  ′æ′￠Æ÷D′ê1Äü
  FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
  FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Enable; // ¶áD′ê1óÃ2»í¬μÄê±Dò
  FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
  FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &readWriteTiming; //¶áD′ê±Dò
  FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &writeTiming;  //D′ê±Dò

  FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);  //3õê¼»ˉFSMCÅäÖÃ

FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);  // ê1ÄüBANK1