How to flash frsky Sensor hub with ftdi modul

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acerquax
Posts: 36
Joined: Sun Jun 21, 2015 9:49 am
Country: Germany
Location: Südl von Ulm

How to flash frsky Sensor hub with ftdi modul

Post by acerquax » Thu Jul 16, 2015 8:35 am

Hello,
I am not yet able to flash my old frsky sensor hub with an ordinary ftdi USB/rs232 modul.
Maybe there is a "strange" protocol that you should have to use/buy the original frsky flash Modul???!!!
:( :lol:
I see no UID number in the frsky flash program,
the configuration of the ftdi modul with WIN XP is OK!!!!!
Thanks in advance.


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Kilrah
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Country: Switzerland

Re: How to flash frsky Sensor hub with ftdi modul

Post by Kilrah » Thu Jul 16, 2015 9:03 am

You need an adapter that uses RS232 levels, not TTL ones. Or a TTL one that has both signals inverted.

acerquax
Posts: 36
Joined: Sun Jun 21, 2015 9:49 am
Country: Germany
Location: Südl von Ulm

Re: How to flash frsky Sensor hub with ftdi modul

Post by acerquax » Thu Jul 16, 2015 9:24 am

THX Kilrah,

ehm...
RS232 level is around zero +3-15V to -3 - -15V..
ftdi goes from 5V to 0V and vv.

acerquax
Posts: 36
Joined: Sun Jun 21, 2015 9:49 am
Country: Germany
Location: Südl von Ulm

Re: How to flash frsky Sensor hub with ftdi modul

Post by acerquax » Thu Jul 16, 2015 9:28 am

..uups..to fast on the send button!!
Anyway..to invert TTL means only to do 5V>>>OV...OV >>>5V...
I did some 7404 Inverter to the output of the ftdi232...successless... :shock: :(

acerquax
Posts: 36
Joined: Sun Jun 21, 2015 9:49 am
Country: Germany
Location: Südl von Ulm

Re: How to flash frsky Sensor hub with ftdi modul

Post by acerquax » Thu Jul 16, 2015 2:22 pm

I could fix this problem not with a 7404 inverter but with a RS 2323 level converter. THX anyway! :D 8-)


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