ch341dll.bas

CH341评估板

' 获得DLL版本号,返回版本号

Declare Function CH341DriverCommand Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef ioCommand As WIN32_COMMAND) As Long
' 直接传递命令给驱动程序,出错则返回0,否则返回数据长度
' iIndex,  ' 指定CH341设备序号,V1.6以上DLL也可以是设备打开后的句柄
' ioCommand   命令结构的地址
' 该程序在调用后返回数据长度,并且仍然返回命令结构,如果是读操作,则数据返回在命令结构中,
' 返回的数据长度在操作失败时为0,操作成功时为整个命令结构的长度,例如读一个字节,则返回mWIN32_COMMAND_HEAD+1,
' 命令结构在调用前,分别提供:管道号或者命令功能代码,存取数据的长度(可选),数据(可选)
' 命令结构在调用后,分别返回:操作状态代码,后续数据的长度(可选),
'   操作状态代码是由WINDOWS定义的代码,可以参考NTSTATUS.H,
'   后续数据的长度是指读操作返回的数据长度,数据存放在随后的缓冲区中,对于写操作一般为0

Declare Function CH341GetDrvVersion Lib "CH341DLL.DLL" () As Long
' 获得驱动程序版本号,返回版本号,出错则返回0

Declare Function CH341ResetDevice Lib "CH341DLL.DLL" (ByVal iIndex As Long) As Boolean
'复位USB设备
' iIndex  指定CH341设备序号

Declare Function CH341GetDeviceDescr Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
' 读取设备描述符
' iIndex,   指定CH341设备序号
' oBuffer   指向一个足够大的缓冲区,用于保存描述符
' ioLength   指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341GetConfigDescr Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
' 读取配置描述符
'  iIndex,    指定CH341设备序号
'  oBuffer,   指向一个足够大的缓冲区,用于保存描述符
'  ioLength   指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341SetIntRoutine Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByVal iIntRoutine As Long) As Boolean
'设定中断服务程序
' 指定CH341设备序号
'指定中断服务程序,为NULL则取消中断服务,否则在中断时调用该程序
'  sub  mPCH341_INT_ROUTINE  (              中断服务程序
'             ULONG           iStatus )     中断状态数据,见下行
' 位7-位0对应CH341的D7-D0引脚
' 位8对应CH341的ERR#引脚, 位9对应CH341的PEMP引脚, 位10对应CH341的INT#引脚, 位11对应CH341的SLCT引脚

Declare Function CH341ReadInter Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iStatus As Long) As Boolean
' 读取中断数据
' iIndex,  指定CH341设备序号
' iStatus   指向一个双字单元,用于保存读取的中断状态数据,见下行
' 位7-位0对应CH341的D7-D0引脚
'  位8对应CH341的ERR#引脚, 位9对应CH341的PEMP引脚, 位10对应CH341的INT#引脚, 位11对应CH341的SLCT引脚

Declare Function CH341AbortInter Lib "CH341DLL.DLL" (ByVal iIndex As Long) As Boolean
' 放弃中断数据读操作
' iIndex   指定CH341设备序号

Declare Function CH341SetParaMode Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByVal iMode As Long) As Boolean
' 设置并口模式
' iIndex   指定CH341设备序号
' iMode   指定并口模式: 0为EPP模式/EPP模式V1.7, 1为EPP模式V1.9, 2为MEM模式

Declare Function CH341InitParallel Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByVal iMode As Long) As Boolean

' 复位并初始化并口,RST#输出低电平脉冲
' iIndex   指定CH341设备序号
'  iMode   指定并口模式: 0为EPP模式/EPP模式V1.7, 1为EPP模式V1.9, 2为MEM模式, >= 0x00000100 保持当前模式

Declare Function CH341ReadData0 Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
' 从0#端口读取数据块
 ' iIndex     指定CH341设备序号
 ' oBuffer   指向一个足够大的缓冲区,用于保存读取的数据
 ' ioLength   指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341ReadData1 Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
' 从1#端口读取数据块
' iIndex,  指定CH341设备序号
' oBuffer 指向一个足够大的缓冲区,用于保存读取的数据
' ioLength   指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341AbortRead Lib "CH341DLL.DLL" (ByVal iIndex As Long) As Boolean
' 放弃数据块读操作
' iIndex    指定CH341设备序号

Declare Function CH341WriteData0 Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iBuffer As Any, ByRef ioLength As Long) As Boolean
' 向0#端口写出数据块
' iIndex,    指定CH341设备序号
' iBuffer     指向一个缓冲区,放置准备写出的数据
' ioLength  指向长度单元,输入时为准备写出的长度,返回后为实际写出的长度

Declare Function CH341WriteData1 Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iBuffer As Any, ByRef ioLength As Long) As Boolean
' 向1#端口写出数据块
' iIndex,    指定CH341设备序号
' iBuffer,    指向一个缓冲区,放置准备写出的数据
' ioLength   指向长度单元,输入时为准备写出的长度,返回后为实际写出的长度

Declare Function CH341AbortWrite Lib "CH341DLL.DLL" (ByVal iIndex As Long) As Boolean
' 放弃数据块写操作
' iIndex   指定CH341设备序号

Declare Function CH341GetStatus Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iStatus As Long) As Boolean
'  通过CH341直接输入数据和状态
'  iIndex,   指定CH341设备序号
'  iStatus  指向一个双字单元,用于保存状态数据,见下行
'  位7-位0对应CH341的D7-D0引脚
'  位8对应CH341的ERR#引脚, 位9对应CH341的PEMP引脚, 位10对应CH341的INT#引脚, 位11对应CH341的SLCT引脚, 位23对应CH341的SDA引脚
'  位13对应CH341的BUSY/WAIT#引脚, 位14对应CH341的AUTOFD#/DATAS#引脚,位15对应CH341的SLCTIN#/ADDRS#引脚

Declare Function CH341ReadI2C Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByVal iDevice As Byte, ByVal iAddr As Byte, ByRef oByte As Byte) As Boolean

'  从I2C接口读取一个字节数据
'  iIndex,   指定CH341设备序号
'  iDevice,    低7位指定I2C设备地址
'  iAddr,    指定数据单元的地址
'  oByte    指向一个字节单元,用于保存读取的字节数据

Declare Function CH341WriteI2C Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByVal iDevice As Byte, ByVal iAddr As Byte, ByVal iByte As Byte) As Boolean

'    向I2C接口写入一个字节数据
'    iIndex,   指定CH341设备序号
'    iDevice,   低7位指定I2C设备地址
'    iAddr,  指定数据单元的地址
'    iByte  待写入的字节数据

Declare Function CH341EppReadData Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
'  EPP方式读数据: WR#=1, DS#=0, AS#=1, D0-D7=input
'  iIndex,    指定CH341设备序号
'  oBuffer,    指向一个足够大的缓冲区,用于保存读取的数据
'  ioLength    指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341EppReadAddr Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
'  EPP方式读地址: WR#=1, DS#=1, AS#=0, D0-D7=input
'  iIndex,    指定CH341设备序号
'  oBuffer,    指向一个足够大的缓冲区,用于保存读取的地址数据
'  ioLength   指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341EppWriteData Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iBuffer As Any, ByRef ioLength As Long) As Boolean
'   EPP方式写数据: WR#=0, DS#=0, AS#=1, D0-D7=output
'   iIndex,     指定CH341设备序号
'   iBuffer,    指向一个缓冲区,放置准备写出的数据
'   ioLength     指向长度单元,输入时为准备写出的长度,返回后为实际写出的长度

Declare Function CH341EppWriteAddr Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iBuffer As Any, ByRef ioLength As Long) As Boolean
'   EPP方式写地址: WR#=0, DS#=1, AS#=0, D0-D7=output
'   iIndex,    指定CH341设备序号
'   iBuffer,    指向一个缓冲区,放置准备写出的地址数据
'   ioLength   指向长度单元,输入时为准备写出的长度,返回后为实际写出的长度

Declare Function CH341EppSetAddr Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByVal iAddr As Byte) As Boolean
' EPP方式设置地址: WR#=0, DS#=1, AS#=0, D0-D7=output
' iIndex,  指定CH341设备序号
' iAddr   指定EPP地址

Declare Function CH341MemReadAddr0 Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
' MEM方式读地址0: WR#=1, DS#/RD#=0, AS#/ADDR=0, D0-D7=input
' iIndex,    指定CH341设备序号
' oBuffer,     指向一个足够大的缓冲区,用于保存从地址0读取的数据
' ioLength   指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341MemReadAddr1 Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
' MEM方式读地址1: WR#=1, DS#/RD#=0, AS#/ADDR=1, D0-D7=input
' iIndex,    指定CH341设备序号
' oBuffer,    指向一个足够大的缓冲区,用于保存从地址1读取的数据
' ioLength    指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341MemWriteAddr0 Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iBuffer As Any, ByRef ioLength As Long) As Boolean
' MEM方式写地址0: WR#=0, DS#/RD#=1, AS#/ADDR=0, D0-D7=output
' iIndex,    指定CH341设备序号
' iBuffer,    指向一个缓冲区,放置准备向地址0写出的数据
' ioLength    指向长度单元,输入时为准备写出的长度,返回后为实际写出的长度

Declare Function CH341MemWriteAddr1 Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iBuffer As Any, ByRef ioLength As Long) As Boolean
'  MEM方式写地址1: WR#=0, DS#/RD#=1, AS#/ADDR=1, D0-D7=output
'  iIndex,   指定CH341设备序号
'  iBuffer,    指向一个缓冲区,放置准备向地址1写出的数据
'  ioLength      指向长度单元,输入时为准备写出的长度,返回后为实际写出的长度

Declare Function CH341SetExclusive Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByVal iExclusive As Long) As Boolean
' 设置独占使用当前CH341设备
' iIndex,    指定CH341设备序号
' iExclusive  为0则设备可以共享使用,非0则独占使用

Declare Function CH341SetTimeout Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByVal iWriteTimeout As Long, ByVal iReadTimeout As Long) As Boolean
'  设置USB数据读写的超时
'  iIndex,  // 指定CH341设备序号
'  iWriteTimeout  指定USB写出数据块的超时时间,以毫秒mS为单位,0xFFFFFFFF指定不超时(默认值)
'  iReadTimeout  指定USB读取数据块的超时时间,以毫秒mS为单位,0xFFFFFFFF指定不超时(默认值)

Declare Function CH341ReadData Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef oBuffer As Any, ByRef ioLength As Long) As Boolean
' 读取数据块
' iIndex,    指定CH341设备序号
' oBuffer,    指向一个足够大的缓冲区,用于保存读取的数据
' ioLength      指向长度单元,输入时为准备读取的长度,返回后为实际读取的长度

Declare Function CH341WriteData Lib "CH341DLL.DLL" (ByVal iIndex As Long, ByRef iBuffer As Any, ByRef ioLength As Long) As Boolean
'  写出数据块
'  iIndex,    指定CH341设备序号
'  iBuffer,    指向一个缓冲区,放置准备写出的数据
'  ioLength   指向长度单元,输入时为准备写出的长度,返回后为实际写出的长度

Declare Function CH341GetDeviceName Lib "CH341DLL.DLL" (ByVal iIndex As Long) As Long           ''''
' 返回指向CH341设备名称的缓冲区,出错则返回NULL
' iIndex   指定CH341设备序号,0对应第一个设备

Declare Function CH341GetVerIC Lib "CH341DLL.DLL" (ByVal iIndex As Long) As Long
' 获取CH341芯片的版本,返回:0=设备无效,0x10=CH341,0x20=CH341A
' iIndex  指定CH341设备序号

Declare Function CH341FlushBuffer Lib "CH341DLL.DLL" (ByVal iIndex As Long) As Boolean
' 清空CH341的缓冲区
' iIndex   指定CH341设备序号