Character Display MAX7219 features

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alkargr
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Character Display MAX7219 features

#1 Post by alkargr » Mon Jun 21, 2021 6:05 pm

It would be useful if you could include a function for Display Test and Shutdown operations for the MAX7219 as described in the datasheet. It is similar to the brightness function but with an other address part. Please have a look at it!! :)

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Ralph
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Re: Character Display MAX7219 features

#2 Post by Ralph » Mon Jun 21, 2021 6:54 pm

I don't see the added value of this. If you want to test it then you can write to the display whatever you want.

alkargr
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Re: Character Display MAX7219 features

#3 Post by alkargr » Mon Jun 21, 2021 7:01 pm

If you write 88888888 to test a display, then you should find the previous values to write them back, when the test is over. And writing on 3 daisy chained MAX7219 simoultaneously (6 displays) doesn't always work properly on AM.

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Ralph
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Re: Character Display MAX7219 features

#4 Post by Ralph » Mon Jun 21, 2021 7:18 pm

That's because we're working on an update for these displays (and more). It's not really a vital piece of hardware, so I rather invest valuable development time into something more useful.

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Keith Baxter
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Re: Character Display MAX7219 features

#5 Post by Keith Baxter » Mon Jun 21, 2021 7:44 pm

Ralph wrote:
Mon Jun 21, 2021 7:18 pm
It's not really a vital piece of hardware, so I rather invest valuable development time into something more useful.
Ngalungile Ralph.

Used on all Radio pedestals and MCP instruments.


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Ralph
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Re: Character Display MAX7219 features

#6 Post by Ralph » Mon Jun 21, 2021 7:50 pm

I understand, but it's not like they're build in to a real aircraft or such. There's a lot of stuff that's nice to have, but we have to choose what we put time into, then I rather put into something like navigational features.

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