PropPlug on QS

MacTuxLin

I had to de-solder pin 3 & 12 on the quad-buffer to get this to work. Are there any simpler way than this?

MagIO2

I don't understand why you want to replace the buildin FTDI with a propeller plug?!

But a better solution would be to add a switch/pulldown to the pins 1,4,10,13. This way you can set the whole quad-driver to tristate when you wan to use the propeller plug and set it back to normal operation if you don't have the prop-plug in place. So, in fact it is not simpler, but more usefull.

MacTuxLin

Thanks. Yes, when reading its datasheet, it did crossed my mind but I was just thinking of a simpler process for now.

The main purpose for this will be better understood when a new thread on a new project is publish by msrobot.

MagIO2

I'd do it like this:

The 2 red lines (1 close to the via, one close to the cap) mean cut the line. Then de-solder pin 14. The green line is a wire which connects the de-soldered pin 14, the cap and the via.
Pin 1 can then be connected with the switch/pullup.

This will fix your QS ;o)

MacTuxLin

Ah, I see it & this a clever alternative! Thanks!

Will link to this thread later.