Serial Comms in 4.6.4

Dar Scott dsc at swcp.com
Sun May 13 15:17:45 EDT 2012


I'm not sure what you mean.

Are you saying you upgraded to Windows 7 and LiveCode 4.6.4 at the same time?

I have heard that some people have had trouble with Windows 7 and serial ports.  Perhaps modems are especially an issue.

Do you see the port in the device manager?  Can you connect with HyperTerminal?  What error results do you get?  (You might have to create a version of your script that logs those.)

Have the scripts ever worked on this Windows 7 installation?

As you can probably tell, I'm leaning towards eliminating non-LiveCode issues and then looking at the script, but the script errors can give clues to both.

Dar



On May 13, 2012, at 4:23 AM, Camm wrote:

> Dar ,
> 
> Windows 7
> 
> All hardware has been checked okay.
> 
> When using read from driver in scripts loaded into 4.6.4 or standalone from
> 4.6.4 nothing is read ?
> 
> The identical script loaded in pre-windows  7 Livecode releases work.
> 
> Thanks
> Camm
> 
> 
> 
> -----Original Message-----
> From: use-livecode-bounces at lists.runrev.com
> [mailto:use-livecode-bounces at lists.runrev.com] On Behalf Of Dar Scott
> Sent: 13 May 2012 05:43
> To: How to use LiveCode
> Subject: Re: Serial Comms in 4.6.4
> 
> Hi, Camm!
> 
> I don't remember any changes.
> 
> Maybe this can be tracked down.  What OS?  How does it fail?
> 
> However, you might want to rule out other things.  I find the most common
> reason that a serial communications program suddenly fails is a cable issue.
> Usually the handshake lines don't make it trough or something else is wrong
> in the wiring.  Sometimes the USB-to-serial adaptor is an issue.  
> 
> Dar
> 
> On May 12, 2012, at 3:30 PM, Camm wrote:
> 
>> Has something changed in the use of open , close , read , write driver 
>> and/or  SerialControlString string in version 4.6.4.
>> 
>> 
>> 
>> I have a stack for serial comms that works fine if run in older 
>> versions of Livecode , but fails to read in version 4.6.4
>> 
>> Same script ??
>> 
>> 
>> 
>> Regards
>> 
>> Camm
> 
> ---------------------------
> Dar Scott
> dba
> Dar Scott Consulting
> 8637 Horacio Place NE
> Albuquerque, NM 87111
> 
> Lab, home, office phone: +1 505 299 9497 For Skype and fax, please contact.
> dsc at swcp.com
> 
> Computer Programming and tinkering,
> often making LiveCode libraries and
> externals, sometimes writing associated
> microcontroller firmware.  
> ---------------------------
> 
> 
> 
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