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NGC6543
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What i/o is used by the TV HAT ?

Wed Mar 06, 2019 2:09 pm

I'm awaiting arrival of my TV HAT today, and I can't find any information about what bits of the interface it uses. I would have thought this would be readily available; perhaps I'm missing it somewhere.

Does anyone know what pins are used? I want to add a few other bits (like a DIY battery-UPS with auto shutdown, etc) and need to know if there will be conflicts.

I found the pinout.xyz site but the TV HAT isn't on there.

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DougieLawson
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Re: What i/o is used by the TV HAT ?

Wed Mar 06, 2019 2:25 pm

It's SPI.
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NGC6543
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Re: What i/o is used by the TV HAT ?

Wed Mar 06, 2019 2:37 pm

Thank you!

My TV HAT has arrived just now, so it's time to play.

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DougieLawson
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Re: What i/o is used by the TV HAT ?

Wed Mar 06, 2019 2:43 pm

https://github.com/raspberrypi/linux/bl ... verlay.dts tells us it's using CE0 so that's GPIO10 (pin#19), GPIO09 (pin#21), GPIO11 (pin#23) & GPIO08 (pin#24)

Sorry, I don't know whether it's using 5V (pin#2 or #4) or 3V3 (pin#1 or #17) and which of the 8 GND pins it's using. You'll have to discover that for yourself.
Note: Any requirement to use a crystal ball or mind reading will result in me ignoring your question.

Criticising any questions is banned on this forum.

Any DMs sent on Twitter will be answered next month.
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poleg
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Joined: Fri Jun 21, 2019 12:06 pm

Re: What i/o is used by the TV HAT ?

Fri Jun 21, 2019 12:21 pm

5V - pin#2, pin#4;
3V3 - pin#1, pin#17 (not connected);
GND - pin#6, pin#9, pin#14, pin#20, pin#25, pin#30, pin#34 pin,#39;
SPI MOSI - pin#19;
SPI MISO - pin#21;
SPI SCLK - pin#23;
SPI SC0 - pin#24;
ID_SD - pin#27;
ID_SC - pin#28.

Caesar23
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Joined: Tue Aug 06, 2019 2:59 am

Re: What i/o is used by the TV HAT ?

Mon Aug 12, 2019 9:51 pm

How could I measure the decibels of each TdT channel and save them in a variable?

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