Freeplay CM4
#36
See the attached screenshot from the CM4 datasheet.  

   

First, note that it DOES have a GPIO 44&45.  It's odd to me that the makers of the adapter board didn't route those to pins 82&84.  That's an oversight, in my opinion.  They really should have routed those 2 pins.

Next, note that the CM4 has several other i2c busses.

UNFORTUNATELY, our Freeplay CM3 does not route GPIO0, GPIO1, GPIO2, or GPIO3 (which all would be top choice alternatives for i2c-0 or i2c-1).

So, now, you have to find another pair and repurpose it, I guess, and things could get complex.

Here's a screenshot of the Freeplay CM3 connector.  Note that, even though things like GPIO0 and GPIO1 are labeled, that's from the CM3 perspective, not the Freeplay perspective.  

   

MAYBE you could find a spot on the adapter board where GPIO0&1 _or_ GPIO2&3 were somehow easy to tack wires to.  Those can be set to i2c.

If they actually route pins 80/82 from the CM4, it would be good to find where they go.  This would be the best option (GPIO44/45).
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Messages In This Thread
Freeplay CM4 - by smoscar01 - 07-12-2022, 02:38 PM
RE: Freeplay CM4 - by Flavor - 07-13-2022, 12:42 AM
RE: Freeplay CM4 - by smoscar01 - 07-13-2022, 11:46 PM
RE: Freeplay CM4 - by Flavor - 07-14-2022, 12:50 AM
RE: Freeplay CM4 - by smoscar01 - 07-14-2022, 04:35 PM
RE: Freeplay CM4 - by Flavor - 07-14-2022, 11:47 PM
RE: Freeplay CM4 - by smoscar01 - 07-15-2022, 12:39 AM
RE: Freeplay CM4 - by Flavor - 07-15-2022, 01:16 AM
RE: Freeplay CM4 - by smoscar01 - 07-15-2022, 11:33 AM
RE: Freeplay CM4 - by smoscar01 - 07-15-2022, 02:02 PM
RE: Freeplay CM4 - by Flavor - 07-16-2022, 12:31 AM
RE: Freeplay CM4 - by Flavor - 07-16-2022, 12:37 AM
RE: Freeplay CM4 - by smoscar01 - 07-16-2022, 01:53 AM
RE: Freeplay CM4 - by Flavor - 07-16-2022, 02:00 AM
RE: Freeplay CM4 - by Flavor - 07-16-2022, 02:03 AM
RE: Freeplay CM4 - by Flavor - 07-16-2022, 02:11 AM
RE: Freeplay CM4 - by Flavor - 07-16-2022, 02:24 AM
RE: Freeplay CM4 - by Flavor - 07-16-2022, 02:26 AM
RE: Freeplay CM4 - by smoscar01 - 07-16-2022, 09:06 AM
RE: Freeplay CM4 - by Flavor - 07-16-2022, 09:18 AM
RE: Freeplay CM4 - by smoscar01 - 07-16-2022, 10:24 AM
RE: Freeplay CM4 - by smoscar01 - 07-16-2022, 11:14 AM
RE: Freeplay CM4 - by smoscar01 - 07-17-2022, 06:38 AM
RE: Freeplay CM4 - by Flavor - 07-17-2022, 06:42 AM
RE: Freeplay CM4 - by smoscar01 - 07-17-2022, 09:23 AM
RE: Freeplay CM4 - by Flavor - 07-17-2022, 09:41 AM
RE: Freeplay CM4 - by smoscar01 - 07-17-2022, 10:50 AM
RE: Freeplay CM4 - by smoscar01 - 07-17-2022, 12:34 PM
RE: Freeplay CM4 - by Flavor - 07-17-2022, 12:37 PM
RE: Freeplay CM4 - by Flavor - 07-17-2022, 12:38 PM
RE: Freeplay CM4 - by Flavor - 07-17-2022, 12:45 PM
RE: Freeplay CM4 - by smoscar01 - 07-17-2022, 01:01 PM
RE: Freeplay CM4 - by Flavor - 07-17-2022, 01:30 PM
RE: Freeplay CM4 - by smoscar01 - 07-17-2022, 02:40 PM
RE: Freeplay CM4 - by smoscar01 - 07-18-2022, 06:24 AM
RE: Freeplay CM4 - by Flavor - 07-19-2022, 04:45 AM
RE: Freeplay CM4 - by smoscar01 - 07-19-2022, 06:07 AM
RE: Freeplay CM4 - by Flavor - 07-19-2022, 07:02 AM
RE: Freeplay CM4 - by Flavor - 07-19-2022, 07:10 AM
RE: Freeplay CM4 - by Flavor - 07-19-2022, 07:13 AM
RE: Freeplay CM4 - by smoscar01 - 07-19-2022, 01:10 PM
RE: Freeplay CM4 - by Flavor - 07-19-2022, 01:38 PM
RE: Freeplay CM4 - by smoscar01 - 07-19-2022, 02:26 PM
RE: Freeplay CM4 - by smoscar01 - 07-21-2022, 01:39 PM
RE: Freeplay CM4 - by Flavor - 07-21-2022, 01:48 PM
RE: Freeplay CM4 - by Flavor - 07-21-2022, 01:57 PM
RE: Freeplay CM4 - by smoscar01 - 07-21-2022, 03:44 PM
RE: Freeplay CM4 - by Flavor - 07-22-2022, 03:55 AM
RE: Freeplay CM4 - by smoscar01 - 07-22-2022, 12:55 PM
RE: Freeplay CM4 - by Flavor - 07-22-2022, 02:25 PM
RE: Freeplay CM4 - by smoscar01 - 07-22-2022, 03:05 PM
RE: Freeplay CM4 - by Flavor - 07-23-2022, 12:45 AM
RE: Freeplay CM4 - by smoscar01 - 07-24-2022, 08:52 AM
RE: Freeplay CM4 - by Flavor - 07-24-2022, 09:09 AM
RE: Freeplay CM4 - by smoscar01 - 07-24-2022, 10:53 AM
RE: Freeplay CM4 - by smoscar01 - 07-27-2022, 01:41 AM
RE: Freeplay CM4 - by Flavor - 07-27-2022, 02:14 AM
RE: Freeplay CM4 - by smoscar01 - 07-27-2022, 03:16 PM
RE: Freeplay CM4 - by Flavor - 07-28-2022, 02:13 AM
RE: Freeplay CM4 - by smoscar01 - 07-29-2022, 10:16 PM
RE: Freeplay CM4 - by smoscar01 - 08-01-2022, 06:48 AM

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