DominusDRR
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Getting Started with the Compute Module

Wed Mar 01, 2017 6:14 pm

Hi.

I have decided to learn everything related to Raspberry Pi.

I bought a Computer Module with the development kit.

Are useful books about Raspberry PI?

Is there a guide or book that focuses only on the computer module?

Thanks

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DougieLawson
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Re: Getting Started with the Compute Module

Wed Mar 01, 2017 8:39 pm

You made the wrong choice. You should start with a RPi3B with an SDCard loaded with NOOBS 2.2 or Raspbian 2017-02-16.

The CM, CM3 and CM3L are specialist equipment not intended for the raw beginner.
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DominusDRR
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Re: Getting Started with the Compute Module

Wed Mar 01, 2017 9:11 pm

Why can it be so difficult or different?

fruitoftheloom
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Re: Getting Started with the Compute Module

Wed Mar 01, 2017 9:38 pm

DominusDRR wrote:Why can it be so difficult or different?
I hope you bought the CM3L kit so you can boot an Operating System from a SD Card

https://www.element14.com/community/doc ... e-module-3

It has no network interfaces built in, only one USB Host Port and considerably more expensive than a RPi 3B.
Rather than negativity think outside the box !
RPi 4B 4GB (SSD Boot) RaspiOS64 ARM64
Asus ChromeBox 3 Celeron is my other computer...

DominusDRR
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Re: Getting Started with the Compute Module

Wed Mar 01, 2017 9:43 pm

fruitoftheloom wrote:
DominusDRR wrote:Why can it be so difficult or different?
I hope you bought the CM3L kit so you can boot an Operating System from a SD Card

https://www.element14.com/community/doc ... e-module-3

It has no network interfaces built in, only one USB Host Port and considerably more expensive than a RPi 3B.
Hi,

Thank you very much for answering.

I'm aware that it doesn't have some 'peripherals'.

At the same time I'm interested in learning to configure the OS correctly.

Then I will design my hardware to add connectivity functions to the module.

Thanks again.

fruitoftheloom
Posts: 23548
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Getting Started with the Compute Module

Wed Mar 01, 2017 10:00 pm

Rather than negativity think outside the box !
RPi 4B 4GB (SSD Boot) RaspiOS64 ARM64
Asus ChromeBox 3 Celeron is my other computer...

W. H. Heydt
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Joined: Fri Mar 09, 2012 7:36 pm
Location: Vallejo, CA (US)

Re: Getting Started with the Compute Module

Wed Mar 01, 2017 10:08 pm

DominusDRR wrote: Hi,

Thank you very much for answering.

I'm aware that it doesn't have some 'peripherals'.

At the same time I'm interested in learning to configure the OS correctly.

Then I will design my hardware to add connectivity functions to the module.

Thanks again.
You can learn to configure an OS on any Pi, and the advice to start with a Pi3B is sound. Learn the configuration on a Pi3B with an SD card so your mistakes can be quickly and easily corrected. Take and keep good notes. They will stand you in good stead when you move on the the CM boards.

The CM currently comes in three versions. The oringial CM, the CM3, and CM3L. The CM and CM3 have 4GB of eMMC on the board. You load an OS into the eMMC though a special boot process. The process is described in the RPF documentation and, at least in terms of what you have to do, is fairly straightforward using a Pi as the master device. Note that the 4GB of eMMC is *not* enough to load a standard, full Raspbian image. It will hold Raspbian Lite, though. So if you want to use the GUI version of Raspbian, you will have to come up with a non-standard way to do it. I suggest using a CM3L and a WD Labs SATA Adapter together with a 2.5" HDD or SSD. And that brings me to the CM3L. It has no on-board eMMC flash memory, but boots from a SD card or eMMC flash on a carrier board. (This is getting into what I *want* to do, but have not done...yet.) If you set the OTP bit to boot over USB, you should be able to boot a CM3L from an attached SSD or HDD. See the sticky thread in the General Forum on how to set the OTP bit by booting with an SD card. Note that you can achieve the same results with a Pi3B or Pi2B2 and it takes rather less hardware to do so.

The CM really isn't an amateur device, even though it does have some amateur uses. If you want to know "all about the Pi", start with standard Pis and then work your way into the more exotic corners.

DominusDRR
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Joined: Mon Jan 04, 2016 1:10 pm

Re: Getting Started with the Compute Module

Thu Mar 02, 2017 9:19 pm

Ok.

Many thanks to all for your suggestions and comments

Fabián

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