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petar

How to send hex trhough serial?

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Hi all,

about a week now I'm busy with a little project in AutoIt.

It's all working fine for now, loading stuff with XML and send things through mine serial port.

But now the real question: how do I send hex characters?

I'm searched the forum for information about this, but didn;t the right things.

This is the code I'm using for now:

_CommSendstring("{Asc 0x05,0x00,0x18,0x01,0x1C}" & @CR)

I'm using a UDF :

UDF for commg.dll

V1.0 Replaces mgcomm.au3

Can somebody help me out here? Thanks :)

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Hi petar,

1st Welcome to the AutoIt Forums! :idiot:

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Hi all,

about a week now I'm busy with a little project in AutoIt.

It's all working fine for now, loading stuff with XML and send things through mine serial port.

But now the real question: how do I send hex characters?

I'm searched the forum for information about this, but didn;t the right things.

This is the code I'm using for now:

_CommSendstring("{Asc 0x05,0x00,0x18,0x01,0x1C}" & @CR)

I'm using a UDF :

UDF for commg.dll

V1.0 Replaces mgcomm.au3

Can somebody help me out here? Thanks :)

petar

you should post In Martins thread: Serial port (COM port) udf

http://www.autoitscript.com/forum/index.php?showtopic=45842

otherwise your post will be missed by those who know the UDF.

the current version is 2.1

the early version of the Dll did not support binary send/receive.

you need to use _CommSendByteArray() to send binary

pseudocode example

;$Bytes = "0x050018011C
$Bytes = "0x05"
$Numbytes = BinaryLen(Binary($Bytes))
$tStruct = DllStructCreate("byte[" & $NumBytes & "]")
DllStructSetData($tStruct, 1, $Bytes)
$Send = _CommSendByteArray(DllStructGetPtr($tStruct),$NumBytes, 1)
$tStruct = 0 ; clear struct

I see fascists...

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Thanks for your reply... I'm gonna work on it:)

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Thanks for your reply... I'm gonna work on it:)

The dll has always supported binary send and receivebut the earlier versions didn't have the send/receive ByteArray functions.

You can read or send a hex byte using

_CommReadByte

_CommSendByte

but if you have a lot of hex data to send then the ByteArray functions which Rover showed are much faster.

You cannot use string functions to send hex data because a hex value of zero indicates the end of a string.


Serial port communications UDF Includes functions for binary transmission and reception.printing UDF Useful for graphs, forms, labels, reports etc.Add User Call Tips to SciTE for functions in UDFs not included with AutoIt and for your own scripts.Functions with parameters in OnEvent mode and for Hot Keys One function replaces GuiSetOnEvent, GuiCtrlSetOnEvent and HotKeySet.UDF IsConnected2 for notification of status of connected state of many urls or IPs, without slowing the script.

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The dll has always supported binary send and receivebut the earlier versions didn't have the send/receive ByteArray functions.

You can read or send a hex byte using

_CommReadByte

_CommSendByte

but if you have a lot of hex data to send then the ByteArray functions which Rover showed are much faster.

You cannot use string functions to send hex data because a hex value of zero indicates the end of a string.

thanks for the correction Martin.

last used the Dlll/UDF about a year ago.

only looked at a test example I had at hand.


I see fascists...

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