Newbie challanges with 3dr radios

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Hawhoo May 7, 2012 at 12:43am

Fred ,

Thanks for your answer. I have the com port set to 57600 8N1N (as well as the Ardu Planner ( which I believe may be irrelevant for a software upload)

At this I am looking for some instructions on how to "manually" talk to the boot loader and get the new firmware uploaded.

Or figure out why I have a communication mismatch...

Can anybody help me please?
Hawhoo May 6, 2012 at 2:14pm

Update - no success :(
FTDI cable from Sparkfun arrived yesterday.

Double checked pins and connected to my laptop.

The Modem fired up and the APM planned saw it as a local radio wit the old 1.3 software.

I pressed the upload firmware button. It connected erased the firmware and ended with

"Update Failed SYNC LOST"

Fail: lost Synchronization with Boot loader.

The red LED stays on indicating boot loader mode.

I tried 9600 baud as well as the 57600 with the same results.

Suggestion welcome

Matthias
Hawhoo May 2, 2012 at 12:43pm

TTL cable was ordered yesterday from Sparkfun I assume once I have the radios on the same rev my issues will go away.

Thanks you for everybody's help.

I'll keep you posted!

Matthias
Hawhoo April 30, 2012 at 8:30pm

+++ that will be helpful l! Thanks! I'll try that when I get home ...
Hawhoo April 30, 2012 at 2:35am

Trige,

OK so I reread the documentation and some other posts. and I conclude that both radios need to be at the same rev level.

I received an unmatched pair.of Radios :( and in order to fix that I need an "FTDI" cable.

(Or I could make my own can make my own Serial Cable).

Will This cable work:

https://store.diydrones.com/Remzibi_OSD_cable_p/ttl-4pinftdi.htm

Or Can You recommend a better cable?

To Clarify assuming you have a matched pair, The upgrade option in the mission planner does not help until ONE HAS A FTDI CABLE that will allow the upgrade of the remote radio as well.?!?
Or can you Upgrade over the air if the radios talk properly?

2nd Challenge

I can issue AT commands to the Radio all day long but I am not getting an answer. ( echo)

Its' been quite a while that I messed with At commands but ATE1 I believe should turn on echo mode.

I am getting absolutely nothing back from the radio.

Thanks for you help...

Matthias
Hawhoo April 30, 2012 at 1:09am

My Terminal Output Looks like this ( see below) the command do not appear to be accepted

I am using Putty

BTW the my win 7 ultimate did not recognize the modem/ radio So I installed the FT232R Drivers

The mission Planner was receiving data after that but It behaves different from using a USB Cable.

I do not seem to be able to send commands to the APM with the radios.

Hmmmm ....If I go to the Setup screen for the 3DR radio and click on "Load Settings" the local radio reports Rev 1.5 the Remote is at 1.3 Is that normal ?

                                      w"È'`èQ
Uxx
   KUy*øÃU%z O'C F<(ÝU{>ÀÆ¸R½®U|I(þèU}%ZÛ
                                         ¬U~#ê[ÛÛÛÛê&UO3X½Û-<È¯!?(6»r£»½z;;ÂÎ;(<<ÓÐ5:ºUËU»½tj;;Çë;(2Ê<Ã ï;Qê\ÛÛÛÛ¡U TcÌ½yÂ<Ç6«?;¾H¢ºv¦ºA¦-»UJ@Æ¸RÜeU
          "ú'`è(~UxU~U*³`U% YÈC F<k±U>ÀÆ¸RÈI(ËU%ZÛÌþU#ê\ÛÛÚÛ(
                                                             U YD½ÅÚ<È>Ò?"7»MU£»½P;;Ý,;(^Ù<Ò $;¹ôkÂýU7UïU
                         ",'`è)UxÄU*:]U% ^¸@C F<ä/U >ÀÃ×
                                                         fU¡I(_EU¢%ZÛ\U£#ê\ÛÛÚÛáSU ¤^Ä½ì<ÉÈ»
            k·;
Developer

Andrew Tridgell April 29, 2012 at 4:26pm

Hi Matthias,

It shouldn't lose the link easily. What parameters do you have set?

If you use a terminal, try AT&T=RSSI and look at what is happening with the signal and noise levels. You could also do AT&T=TDM if you want to see low level debug information on the TDM synchronisation.

Cheers, Tridge

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Newbie challanges with 3dr radios

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