Any practical experiences with connecting full 16 bits parallel data bus (yuck!) TFT temporary to Due?
I am planning to use multicolored 40 conductors ribbon cable (F/M single ends) - 20 cm long - as a temporary connection .
The ribbon is pretty stiff, so would it be of any advantage to split ALL of the wires to make it more manageable?
I was just thinking of splitting it at the end only so it is easier to mount on the TFT - upside down.
Actually right angle connector adapter would probably work better on both ends.
Cheers
Vaclav
Vaclav:
The ribbon is pretty stiff, so would it be of any advantage to split ALL of the wires to make it more manageable?
If you mean split the ribbon lengthwise so that it is more flexible - that would depend on what signal each wire in the ribbon carried. If you can arrange things so that every other wire is a ground lead, then split pairs of ground/signal (or arrange it so that for every signal lead - mainly those for data and other 2-way comms - has an associated ground lead) - that might work ok; you'd have to plan it out and try it.
Back in the day of parallel ATA (PATA) IDE hard drives, you could do this kind of splitting to make "rounded" cables; this was sometimes done for greater flexibility, but more often it was done to bunch the individual pairs up so that a sleeve or something could gather the pairs into a single round "tube" - to maximize airflow and minimize obstruction inside the case, for better cooling (especially when overclocking).
Tutorials on how to do this properly can still likely be found on the internet - but would likely apply in your case; but again, it will depend on the signals, and how resilient they are to crosstalk and such. Your length is short enough (likely) to not be a great issue, I think.
Thanks,
you are right - the length is not an issue.
It is the mess I''l end up with connecting 16 plus basic control wires to run the LCD and not break anything in process. Been there done that with one of those ribbons made like flexible circuit boards.
Of course broke the most inaccessible pin.
I wish I payed more attention the the "spec" to find that the data bus is 16 bits wide and not two or four wires!
But it was cheap!