207与fpga用fsmc通讯问题

单片机菜鸟

[mw_shl_code=c,true]各位大哥，小弟想用fsmc来实现207与fpga之间的通讯，配置如下，发现有个问题，发现数据的最低位是d8，想问下是否跟配置有关系，请各位大哥帮下忙，谢谢啊。 [/mw_shl_code] [mw_shl_code=c,true][/mw_shl_code] [mw_shl_code=c,true][/mw_shl_code] [mw_shl_code=c,true] 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); /*!< Enable FSMC Bank1_SRAM3 Bank */ FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM3, ENABLE);[/mw_shl_code]

xuande

数据的最低位是d8。。。什么意思？不明白。