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Found 4 results

  1. In the moment there are two UDF's for serial communication: >Serial Port / COM Port UDF (needs comMG.dll) >Serial Communication using kernel32.dll The first UDF is very popular, but it has the disadvantage, that an unknown DLL needs to be used. The second UDF use the Windows API, but it has much less features. So, I decided to create an another UDF for my requirements. You can find the result here: http://www.autoitscript.com/wiki/CommAPI It is a further development of the second UDF and has (almost) all functions of the first UDF. Feel free to fix any existing bugs and to extend it with additional functions.
  2. Hi here's another UDF for the serial port. It is very similar to CommAPI using kernel32.dll, but all code is packed into a single file without any dependencies, not even using WinAPI.au3. It differs from existing UDF that it doesn't allow a timeout when reading, instead it always returns immediately, either with the requested amount ob bytes read or with a failure status. And of course there is a function provided to query the amount of available bytes in the receive buffer. The reason behind this design decision: You can do 1000 other things in the main loop while checking from time to time if enough data bytes arrived. There's no point to block the program waiting for the serial port. It is currently a work-in-progress, as I didn't test all functions yet. The code was developed and tested on Windows 7 64 bit. The ComUDF-Tests.au3 shows some tests and basic usage of the UDF. Maybe there's no reason to use this UDF, given the existence of the others UDFs, but I did it to get to know DllCall better - I use structs no only to pass but also to get data back (I don't use the array returned by DllCall to read that data, unless required). You're welcome to test it on older and newer Windows versions. Here's a list of the implemented functions: ; _ComListPorts ; _ComOpenPort ; _ComSetTimeouts ; _ComClosePort ; ; _ComSetBreak ; _ComClearBreak ; _ComGetInputcount ; _ComGetOutputcount ; _ComClearOutputBuffer ; _ComClearInputBuffer ; ; _ComSendByte ; _ComReadByte ; _ComSendBinary ; _ComReadBinary ; ; _ComSendChar ; _ComReadChar ; _ComSendCharArray ; _ComReadCharArray ; _ComSendString ; _ComReadString ; ; __ComClearCommError ; __PurgeComm Maze ComUDF.au3 ComUDF-Tests.au3
  3. Hi all, I got this code and would like to be able to change Baud Rate and instead of sending character by character i would like to be able (if possible) to send whole string. But i don't know how to change it. I am taking input from file and processing whole line (this is done in FilesHandling.au3). To execute this i am just calling SendData("FileName", int) in "main" script. Any help very appreciated. #include <WinAPI.au3> #include <Array.au3> #include "FilesHandling.au3" ;init DLL function, we need handle to call the function $h = DllCall("Kernel32.dll", "hwnd", "CreateFile", "str", "\\.\COM19", "int", BitOR($GENERIC_READ,$GENERIC_WRITE), "int", 0, "ptr", 0, "int", $OPEN_EXISTING, "int", $FILE_ATTRIBUTE_NORMAL, "int", 0) $handle=$h[0] Func SendData($FileName, $LineNumber) ;string to be send $c = readFile($FileName, $LineNumber) $cLenght = StringLen($c) $aArray = StringSplit($c, "") ;_ArrayDisplay($aArray, "", Default, 64) For $i = 1 To $cLenght writeChar($handle, $aArray[$i], $cLenght) Next ;move to next line writeChar($handle, @CR,1) EndFunc ;write a single char func writeChar($handle,$c,) $stString = DLLStructCreate("char str") $lpNumberOfBytesWritten = 0 DllStructSetData($stString, 1, $c) $res = _WinAPI_WriteFile($handle, DllStructGetPtr($stString, "str"), 1,$lpNumberOfBytesWritten) if ($res<>true) then ConsoleWrite ( _WinAPI_GetLastErrorMessage() & @LF) EndIf EndFunc
  4. I'm attempting to call the winapi function EnumSystemFirmwareTables using DllCall "Kernel32.dll" without success. I am a total noob when it comes to this and could use some direction. Based on the documentation "Dealing with Dlls in AutoIt" by Andreas Karlsson, I have tried using the following code to obtain the buffersize of the Firmware Table Buffer. Thanks in advance for any help #include <WinAPI.au3> MsgBox(0, "ESFT BufferSize", "BufferSize = " & _EnumSystemFirmwareTables()) Func _EnumSystemFirmwareTables() $aRet = DllCall ("Kernel32.dll", "UINT", "EnumSystemFirmwareTables", "DWORD", "ACPI", "PVOID" ,Null , "DWORD" ,Null) if @error Then MsgBox (0,"Error","An error ocurred with the DLLCALL, error returned = " & @error &@CRLF & "GetLastError = " & _WinAPI_GetLastError ( ),0) Exit else Return $aRet endif EndFunc
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