E-SKY 0404 - wejście sygnału PPM

[sebi]

Witam!

 

Czy ktoś z Was orientuje się gdzie w E-SKY 0404 jest wejście sygnału PPM? Wiem z którego pinu PPM wychodzi, a na który pin należy podać PPM aby zrobić kabel trener – uczeń?

[gładkilot]

http://www.pitlab.pl/interfejs_fms_pl.html na dole jest rozrysowane (może się przyda)

[sebi]

Dzięki, ale tam jest tylko zaznaczone wyjście PPM.

[AndrzejNowak]

FMS

4 Channel eSky FM-PPM TX with Trainer output

Trainer to DB9 Serial SIM Cable

 

The Cable is wired as follows:

 

Trainer side (mini Din) -----------DB9-----------Signal Type

Pin 1--Black---------------------Pin 7-----------RTS

Pin 2--White--------------------Pin 2------------RX Data

Pin 3--Orange-------------------Pin 3------------TX Data

Pin 4--Green--------------------Pin 5------------Signal Ground

 

I found the signal is caried on Pin 1 and ground on Pin 2 of the mini-din connector.

 

Trainer Jack Wiring:

 

Pin 1-----------No Connection

Pin 2-----------3.6V to 4V depending on stick position (Data?)

Pin 3---------- 1.51 to 1.54V depending on stick position (Data?)

Pin 4---------- 9.46 VDC (Battery Voltage? Power to Trainer?)

Shell-----------Ground

 

Since the cable had it's ground wired to one of the pins, there would be no ground reference using it with a trainer jack that has ground on the shell only.

 

I bridged the shell connection and the unused Pin 1 connection together on the trainer PCB in the TX. Then I wired the DB9 to accept data on Pin 2 and Ground on Pin 5. The other 2 wires were insulated with heatshrink tubing and not used.

 

At this point, I could read data using PPCOM, but no valid sync byte.

 

Am I getting close?