[Paparazzi-devel] Connecting Navilock NL-652ETTL

[Andreas Philipp]

Hello,

I have a beginners question concerning the Navilock NL-652ETTL for which 
I couldn't find documentation (probably it's just a problem for bloody 
beginners without any electronics knowledge):

How do I connect the 5 pins of the NL-652ETTL to the TWOG (or APOGEE) 
and to the PC for configuration?

The Navilock has the following 5 pins:
 Pin 1: +5V
 Pin 2: GND
 Pin 3: Shield (whatever it is?)
 Pin 4: 3.3V TTL TX
 Pin 5: 3.3V TTL RX

The TWOG serial port has the 8 pins:
Pin 1: GND
Pin 2: +5V
Pin 3: +3.3V
Pin 4: DIR
Pin 5: CTS
Pin 6: RTS
Pin 7: RXD1
Pin 8: TXD1

So I would connect the Navilock pins to a 8-pin molex connector for the 
TWOG as follows:
Navilock Pin 1 -> TWOG-serial pin 2
Navilock Pin 2 -> TWOG-serial pin 1
Navilock Pin 3 (empty)
Navilock Pin 4 -> TWOG-serial pin 7
Navilock Pin 5 -> TWOG-serial pin 8

Is this right?

If I would like to connect the GPS to a 5-pin molex connector for the 
Apogee UART:
Navilock Pin 1 -> Apogee-UART pin 2
Navilock Pin 2 -> Apogee-UART pin 1
Navilock Pin 3 (empty)
Navilock Pin 4 -> Apogee-UART pin 4
Navilock Pin 5 -> Apogee-UART pin 5

Is this OK?

If I have to configure the GPS, can I do it with the TWOG loading the 
tunnel subsystem?

If I want to configure the GPS with the FTDI utility board, how do I 
connect? Is there a documentation on the FTDI utility board? There is a 
4-pin molex adapter on J3, is this the right one? Do I have to solder 
now a 4-pin connector to the GPS and a 5 or 8-pin connector afterwards 
again?

Thanks for any answer!
Andreas