CH395L是带并口的版本，支持串口、SPI、并口三种模式，网卡类似于内置TCP协议的W5500，用户只需读取一些参数设置socket就可以完成网络通信。CH395具有并口模式，这是个特色，在对速度要求高的场合，并口比SPI等串行方式快很多，在使用stm32f103以fsmc硬件并口驱动ch395时参考秉火和战舰的驱动LCD的例程，因为都是8080时序的设备，方法相似。
在配置过程中，发现在以杜邦线连接ch395模块的情况下，
readWriteTiming.FSMC_AddressSetupTime = 0x03;
readWriteTiming.FSMC_DataSetupTime = 0x08; 这两个值不能再小于此数值，整个读写周期达到 （3+1 +8+1）*1/72MHz = 182ns,没达到手册的写模式极限值41ns
值改小的话读出的数据会重复 出错，只能调大，原因可能是杜邦线的稳定性问题，波形奇丑：
与LCD配置不同的是，需要加上以下：FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
同步等待需要关闭，之前测试失败是因为读写周期不一致，示波器观察 写周期太短，周期与写不一致，FSMC_AccessMode_B下，写周期的参数似乎不受控制，周期过短，切换为FSMC_AccessMode_A ，读写分别配置，示波器查看 读写周期一致，驱动成功。没有再深入研究，具体配置如下：
readWriteTiming.FSMC_AddressSetupTime = 0x03;
readWriteTiming.FSMC_DataSetupTime = 0x08;
readWriteTiming.FSMC_AccessMode = FSMC_AccessMode_A;
readWriteTiming.FSMC_AddressHoldTime = 0x00;
readWriteTiming.FSMC_BusTurnAroundDuration = 0x00;
readWriteTiming.FSMC_CLKDivision = 0x00;
readWriteTiming.FSMC_DataLatency = 0x00;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAMx;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = 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;
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 = &readWriteTiming; 此外参考ch395官方demo--exam0，移植了stm32平台下串口、硬件SPI、模拟并口、硬件FSMC并口的驱动程序，4个Socket分别工作在TCP 客户端、服务器、UDP、IPRAW模式。资源下载: