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Ttelmah
Joined: 11 Mar 2010
Posts: 19536
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 Posted: Mon Mar 11, 2019 2:57 am |
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As I said right early on in this thread:
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However this is not a multi-core processor in the normal sense, but just dual chips, in one package, with a communication/sync system (a multi-core would be sharing the resources, the description implies these don't).
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It is effectively just like current programming for a pair of independant
processors. Except for needing a library added to handle allocation of
the peripherals, and the communication link between the cores. |
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avatarengineer
Joined: 13 May 2013
Posts: 51
Location: Arizona
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| dsPIC33CH looks like fun, but... |
| Posted: Wed Apr 10, 2019 11:58 am |
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Most of my applications might benefit from a separate engine handling live communications while another is busy with work.
Protocol parsing can use up too much time while a control loop is active. In power conversion, my speciality, I can't afford a mS burned within a control sequence so communications must be very short or handled in special ways.
Curious about programming complexity;
If the CH parts had separate programming ICSP pins, that might be easy for CCS to handle, but it might be an issue with programming hardware (U64) if they are shared.
My dislike of the dsPIC parts are the analog peripherals.
OpAmps with +/- 20mV offset with 2.8-3.6Vdd is awful if not unusable.
That means only 7bits of analog is available which is a very low limit for accuracy. I try to avoid adding external peripherals unless size and budget are wide open. |
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bkamen
Joined: 07 Jan 2004
Posts: 1615
Location: Central Illinois, USA
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| Re: dsPIC33CH looks like fun, but... |
| Posted: Wed Apr 10, 2019 1:20 pm |
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| avatarengineer wrote: | Most of my applications might benefit from a separate engine handling live communications while another is busy with work.
Protocol parsing can use up too much time while a control loop is active. In power conversion, my speciality, I can't afford a mS burned within a control sequence so communications must be very short or handled in special ways.
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It does open up some interesting ideas for sure...
I'm about to work on a dual-pic design that's using an 18F and 24F.
Possibly both could be combined into one.
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D |
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