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'[PIC]: Allowable ICD length'
|Hello Anthony & PIC.ers,
My workshop pc is in a more-or-less fixed position, while the 16f877
target is a machine sitting outside under a car-port & weighs 250kg.
Definitely not mobile, that one.
I started by making a twp comms extension cable between the ICD and
16f877 header extension of 10.4 metres, knowing it was much longer
than I really needed. It performed poorly, with many hang-ups, GPFs
etc., and was generally painful.
After halving the length to 5.2m it worked perfectly & I was still
*just* able to string it out to the target.
Hope this helps, as un-scientific as it is....
best regards, John
PS For the SI-challenged, 5.2 metres = 17 foot and a wee bit.
>Date: Wed, 31 May 2000 14:05:31 -0500
>From: Anthony Clay <INTCON.NET> zarthrag
>Subject: Allowable ICD length
>I am about to start experimenting with this ICD Module today, after I'm
>with the documentation. Concerning the "telephone cable" between the ICD
>and header, how long can it be?
e-mail from the desk of John Sanderson, JS Controls.
Snailmail: PO Box 1887, Boksburg 1460, Rep. of South Africa.
Tel/fax: Johannesburg 893 4154
Cellphone no: 082 469 0446
Manufacturer & purveyor of laboratory force testing apparatus, and related
products and services.
Isn«t it better to use long RS232 cable between PC and ICD instead?
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