Elio,
I've contacted with the guy who dissected his FE-5680A in YouTube. I
offered to pay the shipping and he agrees to send the board to you, so
he needs your address. Please contact directly with me.
Regards,
Ignacio, RB4APL
El 15/02/2012 2:31, Elio Corbolante escribió:
at the following address:
<
http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_schematics_v0.1.pdf
you will find the 0.1 release of the FE-5680A schematics.
New additions:
- pinout of the unpopulated (24 pin) connector (J9) behind the DB9
- connections between CPU/MAX3232 and the *TWO* serial ports!!!
- component values of the 10MHz filter + option on PCB to output a square
10MHz wave on DB9
- connections between CPU and MAX1246 (A/D converter)
- connections between XC9572 and MAX392 (quad analog switch)
- unknown pins marked as '?'
As you can see, it seems FE-5680A fully supports 2 serial ports:
one on DB9 and the other one on the unpopulated connector (J9) behind DB9.
Any comments/suggestions are welcome.
. ciao
_ Elio.
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