How to send hex trhough serial?

[petar]

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

[Community On Patrol]

Hi petar,

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[rover]

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

[petar]

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

[martin]

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.

[rover]

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.