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Hermes Ctrl Outputs

Posted: Sun Jun 23, 2019 12:10 pm
by bobltx
For some unknown reason E1 pins 11,13,15 and 17 are sitting at low on my RP with the SDR application. They were switching the band pass filters quite happily for the last couple of years
now they will not change. Pins 7 and 9 still function with no problem. The pins in question were
driving a CD4028B as part of the switching curcuit.
I have tried another SD card image in case it was a software fault.
Does this mean my RP is now not suitable for purpose and is now to be assigned to the bin :roll: ?

Re: Hermes Ctrl Outputs

Posted: Wed Oct 02, 2019 9:18 am
by redpitaya
Thank you for posting!

Definitely it is not a question about not suitable for purpose. Actually what you are doing is a very nice use case of the IO. It might have been an early release missing functionality.

Re: Hermes Ctrl Outputs

Posted: Wed Oct 02, 2019 11:35 am
by bobltx
Thanks for the reply.

Could you clarify a little more i.e. can "missing functionality" be sorted by a firmware update?
It was working very well and in use most days without problem but the low pass filters now have to be manually switched. :geek: