[arm-allstar] Boot from Raspberry Pi 3B+ USB Stick

[Kevin Custer]

Jeff,

If you are using the RB RIM (not a lite version - but the full blown RIM 
that's packaged like the URI), because of its design, it takes a good 
bit of DC current.  One reason is because of the onboard DC-DC converter 
(charge pump) to create a higher voltage for the audio amplifiers.  
Obviously - this current has to come from the Raspberry Pi and its power 
supply.  This additional current draw may be taxing your power supply 
making the system unstable.  As has been mentioned previously, powering 
may be the cause of your instability.

If you're using one of the "Lite" versions - then this information 
doesn't apply, because they draw the same as any other radio adapter - 
probably less.

All of AllStar compatible USB radio interface modules that Repeater 
Builder builds use a genuine C-Media CM119A.  IMHO - over time - this 
has been proven to be the best chipset for AllStar utilization, 
regardless of the software or channel driver method chosen to run it.

Disclosure - The RIM is not my product - it's Scott Zimmerman's (RB the 
company) <http://www.repeater-builder.com/rbtip/whoisrb.html>, but I 
helped design it.  The same chipset is used in all of my RA, RL, and DRA 
products.

Kevin - W3KKC


On 1/1/2021 6:16 PM, "Jeff Hochberg via ARM-allstar" wrote:
> For what it's worth - we have a USB audio card from Repeater Builder - IRRC
> (C-Media chipset) that's connected to the svxlink box, then that goes to
> our RLC controller.
>
> I have a USB sound card here (also with a C-Media chipset - I believe the
> exact same chipset), so I'm going through the setup process hoping that
> when I remove the USB sound card I'm using temporarily and replace it with
> the production USB sound card, that all will work well.