Since there’s no online (web) archive of these email notices from Connect Systems about the CS 7000 M17 and M17 PLUS radios, and this being the m17-users community, in the future I will be forwarding these to this email list, which does generate a “web page” that can be linked to.
Thanks,
Steve Stroh N8GNJ
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Steve Stroh N8GNJ (he / him / his)EditorZero Retries Newsletter -?
Radios are Computers - With Antennas!
---------- Forwarded message ---------
From: Connect Systems Inc. <
jerry-connectsystems.com@...>
Date: Nov 22, 2024 at 13:17:19
Subject: CS7000 M17 PLUS Firmware Status
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Summary of Status of Firmware
The CS7000 M17 PLUS is now properly transmitting. Receive is intermittent and needs to be fixed.
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CS7000 M17 PLUS Firmware Status as of November 22
From developer (Silvano) (November 22)
Hi Jerry,
everything is up and running except for the M17 demodulation. For some reason I'm not fully understanding, the demodulator fails to lock on the incoming signal very often; however, once it locks, the demodulation is stable, you can hear the audio and the screen shows the correct stream information. The hardware part is good, I did both an eye diagram of the incoming baseband signal and demodulated it using a Module17: this worked immediately, the problem seems to be somewhere between the STM32H7 ADC and the code. The interesting fact is that the Module17 is running the same exact demodulator code of the CS7000-M17 Plus and it works.
I'll keep you updated.
Bye,
Silvano.
From developer (Silvano) (November 19)
Hi Jerry,
today I found and fixed the bug causing the missing M17 transmission on the CS7000-Plus. I'm still working to find the issue causing the missing RX: the baseband signal coming from the RF stage looks good, the problem seems to be in the firmware; tomorrow I'll make an eye diagram to see if everything is really ok.
Bye,
Silvano.
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