[TriEmbed] Raspberry Pi perspectives

[Carl Nobile]

Rodney, good point.

On Fri, Jan 15, 2021 at 11:23 AM Rodney Radford via TriEmbed <
triembed at triembed.org> wrote:

> Personally I think the closed GPU on the Raspberry Pi gets a bad rap. Yes,
> the GPU is closed source (nothing the Raspberry Pi guys can do about that
> as it is not their choice),.
>
> It is true that it is responsible for mounting the SD card and starting up
> Linux, but the way I look at is that it takes the place of the BIOS and
> bootloader on a standard PC system. Like the BIOS, it opens up the boot
> device (SD card), loads the bootloader. The main difference is the
> bootloader is also part of the GPU code so it does make it more difficult
> porting other systems to it, but not impossible.
>
> After that, the code runs on the Linux side of things with it being in
> control with the GPU handling graphics, as expected, and monitoring
> voltages and temperatures, with the ability to directly write to the
> display for battery and heat issues.
>
> You can modify the Linux code and you can create custom device drivers for
> it, so I don't see it as a closed system any more than a PC is running
> Linux with a 'closed' BIOS.
>
>
>
> On Fri, Jan 15, 2021 at 11:12 AM jonathan hunsberger via TriEmbed <
> triembed at triembed.org> wrote:
>
>> Maybe not a lot of fully open options in the "sbc running Linux" category
>> yet, but..
>> BeagleV recently released on RISC-V.  At $150 it's not really a RPi
>> replacement, but could lead to proliferation of similar solutions at lower
>> cost.
>>
>>
>> On Thu, Jan 14, 2021 at 1:10 AM Mauricio Tavares via TriEmbed <
>> triembed at triembed.org> wrote:
>>
>>> On Sun, Dec 27, 2020 at 10:17 AM Pete Soper via TriEmbed
>>> <triembed at triembed.org> wrote:
>>> >
>>> >
>>> > Here are some criticisms of RPI that this list will hopefully take as
>>> constructive. Some good tech details that many of us may have been unaware
>>> of.
>>> >
>>> > https://ownyourbits.com/2019/02/02/whats-wrong-with-the-raspberry-pi/
>>> >
>>>       I was not aware of the everything-goes-through-gpu-blob aspect
>>> of the Rpi4. What are the alternatives? I was looking at the Rock Pi,
>>> especially the N10 for some applications, and then started wondering
>>> if it has as much closed source stuff as the Rbpi.
>>>
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-- 
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Carl J. Nobile (Software Engineer)
carl.nobile at gmail.com
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