GPSberry not working on my PI4

[bend94]

Hi

I am back...

i did receive a new GPSberry card.

i try first on a PI3, i plugged it and to configured it. GREAT !!! now it is working (see the image attach)

OK my new GPSberry is operational.

Now i go back to my new PI4 and unfortunatly this is the same issue , with strange characters (with minicom or with cat /dev/serial0).

even if i try to upgrade again the Raspbian , this is the same issue

Do you have any clues ?

Thanks

Attachments:

1. 

   CaptureGPS.png
   

[PeterP]

It may have something to do with the CPU frequency. try this

open config.txt

sudo nano /boot/config.txt
add this
core_freq=250
reboot

Peter --OzzMaker.com --

[bend94]

hi

i added this line and reboot

core_freq=250

 

but minicom display same strange chars

regards

[bend94]

Hi Again

I did a Fresh reinstallation of Raspbian on my PI.

Setup again Serial and GPS daemon

Still strange characters using Minicom or cat /dev/serial0

Need help please, should be great to be able to use my PI4 with BERRYgps

thanks in advance

[Mark Williams]

what Raspbian image file are you using? I will test it here on a Pi 4

Mark --OzzMaker.com --

[bend94]

hi

i used Raspbian GNU/Linux 10 (buster)
i downloaded it from https://www.raspberrypi.org/downloads/raspbian/

thx (let me know)

Attachments:

1. 

   raspbian_ver.png
   

[Mark Williams]

I tested on two Pi 4. This is what i did to get it working.

 

1. burn image 2020-02-13-raspbian-buster-full.img
2. Enable ssh and wireless
3. ran raspi-config and disable console of serial and then enabled serial interface
4. rebooted
5. view serial while BerryGPS-IMU plugged in, using  cat /dev/serial0
6. The GPS was reporting errors
7. I disabled echo with stty -F /dev/serial0
8. viewing serial now works

Mark --OzzMaker.com --

[bend94]

hi Thanks again,
i will do it again following your procedure
one last question ,the image

2020-02-13-raspbian-buster-full.img

has been download from

https://www.raspberrypi.org/downloads/raspbian/

???
did you choose

1/ Raspbian Buster with desktop and recommended software
2/ Raspbian Buster with desktop
or
3/ Raspbian Buster Lite

i will start reinstallation the evening and i will let you know
regards

[Mark Williams]

I chose this
Raspbian Buster with desktop and recommended software

Mark --OzzMaker.com --

[bend94]

hi

YOU ARE A GENIUS ! THX SO MUCH

I really don't know what happened but following your procedure now it is working on PI4

Best regards

[Author]

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