STM32F407ZET6系统（168M AHB 时钟）非复用方式扩展一片IS62WV51216BLL-55，不能完全正确读写操作，找原因过程中，错误开启了异步等待模式
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable; //该语句被改为Enable,
下载运行后，死了，重新上电软件也不再执行，也不能重新下载代码，已经找不到器件
- void FSMC_Config(void)
- {
- FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
- FSMC_NORSRAMtimingInitTypeDef p;
- RCC_AHB3PeriphClockCmd(RCC_AHB3Periph_FSMC, ENABLE);
- p.FSMC_AddressSetupTime = 5;
- p.FSMC_AddressHoldTime = 0;
- p.FSMC_DataSetupTime = 12;
- p.FSMC_BusTurnAroundDuration = 0;
- p.FSMC_CLKDivision = 0;
- p.FSMC_DataLatency = 0;
- p.FSMC_AccessMode = FSMC_AccessMode_A;
- FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM3;
- FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
- FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;
- FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
- FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
- FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_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 = &p;
- FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
- FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
- FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM3, ENABLE);
- }
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