Re: LF: Ublox 8 question

[Riccardo Zoli <riccardozoli80@gmail.com>]

Hi Chris,

Well, only the NEO-M8T version has the TP2 functionality (readly available by default settings).

-pin 3 (TIMEPULSE) of the Ublox module is often connected to a SMD green LED (in series with a 1k0 resistor)

-pin 1 (TP2/SAFEBOOT_N) is disconnected in my breakout board then I soldered a wire directly on the GPS module's pin.

Try to revert to default configuration (UBX - CFG page) and restore again TIMEPULSE and TIMEPULSE2 settings (UBX - TP5 page).

73 de Riccardo IW4DXW

Il giorno Dom 6 Gen 2019, 12:10 Chris Wilson <dead.fets@gmail.com> ha scritto:

Hello Riccardo,

Thanks to you and Stefan for the replies. I saw a silly error where I
had "Other setting in GNSS Time Locked Mode" ticked but the default
1Hz set in that menu. I can now order frequencies and duration on TP0
and all seems well. However I have totally failed to get any output AT
ALL from TP2. I have checked continuity from the Ublox pins to the
break out board and also tried probing direct on TP2 pin. I am aware
thet TP2 must not be held low on boot up so have booted with nothing
connected to TP0 or TP2 to make sure the probe could not be holding
TP2 low and going into "safe boot" mode with no TP2 output.

Is it a lot of trouble to post a screen shot of the settings you are
using to get output from TP2 either with TP0 or alone please? I have
taken screen shots of my settings and put them here:

http://www.chriswilson.tv/ublox/TP0.jpg


http://www.chriswilson.tv/ublox/TP2.jpg


Thanks :)


Friday, January 4, 2019, 8:27:11 PM, you wrote:





> Ok, Chris, it's correct to connect the ground probe as near as
> possible to the module's GND. Please, could you post some pics of your NEO's breakout board?




> 73 de Riccardo IW4DXW



> Il giorno Ven 4 Gen 2019, 20:09 Chris Wilson <dead.fets@gmail.com> ha scritto:


> 
>  Hello Riccardo,
> 
>  Thanks, a typo on my phone, I am always doing it, sorry, I was setting
>  1  MHz  (mega)  :)  I'll try again but that sounds like I was doing it
>  correctly. Where should the probe ground be taken from please?
> 
>  Friday, January 4, 2019, 6:21:37 PM, you wrote:
> 
> 
> 
 >> Hi Chris, LF
> 
> 
 >> 1 mHz? Maybe 1 MHz: TP frequency must be in the range 0.25 Hz..10 MHz.
 >> In TP5 settings, toggle frequency and duty cycle flags then set
 >> 1000000 Hz and 50% d.c. in the f. locked fields. Press "send" button
 >> (in the lower part of cfg window).
> 
> 
> 
> 
 >> 73 de Riccardo IW4DXW
> 
> 
> 
> 
> 
 >> Il giorno Ven 4 Gen 2019, 18:59 Chris Wilson <dead.fets@gmail.com> ha scritto:
> 
> 
 >> 
 >>  Hello  LF'ers,
 >> 
 >>  My newly arrived Ublox 8 and breakout board has landed and I have had
 >>  a very quick play with it and the Ublox UCentre software. I have set
 >>  Time0 to give say a 1 mHz output in UBX / CFG / TP5 but scoping that
 >>  through hole on the breakout board shows no output. I did instruct it
 >>  to write to the device, and it sticks. What I am unsure about is where
 >>  I should be taking the scope ground to, I used the shell of the USB
 >>  connector socket. i am hoping it's not a fake or knackered... It came
 >>  from the same place Stefan suggested and is the same model and same
 >>  break out board he posted. Any idea if it's me being stupid again, and
 >>  I have overlooked the obvious? Thanks.
 >> 
 >> 
 >> 
 >>  --
 >>  Best regards,
 >>   Chris                          mailto:dead.fets@gmail.com
 >> 
 >> 
 >> 
> 
> 
> 
>  --
>  Best regards,
>   Chris                            mailto:dead.fets@gmail.com
> 
> 
> 



--
Best regards,
 Chris                            mailto:dead.fets@gmail.com

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