Re: List of 787 MS products

On Fri, 1 Nov 2024 06:23:32 -0000 (UTC), RonB wrote:

I don't know what a GPIO is, but I'm guessing it has something to do
with input and output(?) — maybe for a camera? My WYSE 5070 has seven
standard USB ports (five 3.x and two 2.x) plus a USB-C port that doubles
as a Display Port. A speaker jack, a headphone jack, a 9-pin serial
port, two standard Display Ports, an add-on VGA port and an Ethernet
port. WiFi is optional. I do have a WiFi card on another WYSE 5070 but
not on the one I use. I normally use Ethernet cables for my computers.

https://pinout.xyz/

General Purpose I/O.  The Pi breaks out most of the processor pins to a 40
pin header. Some of them have alternate uses. For example the SPI can be
used with accelerometers, temperature/humidity sensors, and other
peripherals. The strictly general purpose ones can be used however you
want. You can read inputs like buttons or use the outputs to activate
LEDS, servos, and so forth.

In addition to the processor pins there are 4 regular USB-A ports and HDMI
so you can use it as a general purpose Linux box without going near to
pins.

The Pico, being a microcontroller has a similar layout but more of the
GPIO pins have specific uses. Only GPIO 22 doesn't have an alternate use.

https://datasheets.raspberrypi.com/pico/Pico-R3-A4-Pinout.pdf


The Pico uses the RP2040 Arm Cortex M0+ processor.  The Pi 5 uses the
Broadcom BCM2712 SOC based on the Arm Cortex-A76.  On the Arm world, 'M'
parts are the microcontroller profile, and 'A' are general purpose
application profile. There is also the 'R' realtime profile.

There are extensions but the base ISA is uniform across all Arm designs.
x86 tended to be the wild west and it's only very recently that Intel and
AMD decided to work together against the shared threat. It's a late
starter but the RISC-V people are doing the same.

Anyway that's what GPIO means. More detailed:

https://s-o-c.org/how-many-gpio-registers-are-in-arm-processor/

https://www.hackster.io/raspberry-pi/projects

The Pi blurs the distinction between a microcontroller and microprocessor.
That's why the argument that the Intel NUC was aimed at the Raspberry Pi
market completely missed the point.

Windows on Arm as implemented by Microsoft isn't going to look any
different than Windows on x86. It would be interesting to see what you
could do with Windows on a Pi.