Longmynd + Linux/Raspberry pi not working

[vu2ow]

Hello Friends,

This topic may have been widely discussed in BATC forums - I am unable to find any posts relating to my specific problem and hence I am opening a new subject. Thank you for your patience.

I assembled the minitiouner kit from BATC and got it working well on a Windows 11 PC with Minitioune software. All signals, locking are perfect. I am nearing 100% on the signal levels. In Windows environment, I am comfortable.

I tried the same in Raspberry Pi and another Linux PC - Installed Phil Crump's Longmynd on both systems and tried ZR6TG client / VLC but I am not successful. Installation is successful but the Video just doesnt play - it is very breaky and lossy. BER is reported as 125% in the 8080 html page. This happens in both raspberry pi and another linux system.

In summary, Minitiouner hardware is perfect and works well in Windows environment but on Linux, I am unable to make it work with Longmynd. I would be grateful if anyone can provide guidance.

Thank you
KC2KBY/VU2OW
Rajesh K
NK03DA

[vu2ow]

Any suggestions for me?

Could it be due to some incompatibility - FTDI Card on minitiouner hardware and Linux ? - slow traffic between minitiouner and Rpi? Things are good on PC/Windows side.....

Is my network bad? - Something in the network ? Everything else runs well....

Thank you!
Rajesh K

[vu2ow]

A resistor between 5.6k and 12k must be fitted between CN2 Pin 19 - This modification on FTDI module has been recommended for Minitioiuine software 8 and above. Is this needed for Raspbery pi - Longmynd?

[g0mjw]

The first thing to try is a different USB cable. Then the drivers. Which distribution?

Mike

[vu2ow]

Thanks for your response, Mike! I have tried different cables. Both cables work well with windows PC. Problem is only with Raspberry Pi.

Regards,
Rajesh

[vu2ow]

Got it working!

Problem was with the 74HC10 ic in the minitiouner.

Cheers, 73
Rajesh K

[g0mjw]

Ah ha. Was it not the correct part?

[vu2ow]

Friends,

I had used a 74F10N in place of 74HC10. This was workign well with windows. Once I placed the ST electronics 74HC10, everything started working. I am able to run Longmynd in Raspberry pi and clients in PC, Android phone and Android Big Screen TV too, without any hitch.

Cheers, 73
Rajesh K
VU2OW

[g0mjw]

That explains it.

It is important to use the right part.

Mike