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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:40 am

rpdom wrote:
ric96 wrote:I think that it just might be worthwhile to have a separate 64bit repo due to the huge performance bump.
For the most part you could probably use the Debian arm64 repos for all the apps instead of the Raspbian ones, then the RPF could add their own arm64 for the Pi specific stuff that is held on the raspberrypi.org servers. The main work would be building 64 bit image files. NOOBS could stay as it is, but perhaps detect that it is running on a 64 bit system and give the option of downloading 64 bit versions of the available OSen.
And don't forget the kernel. Also I am guessing we'll have debian Jessie and arch linux 64bit images soon enough like last time (with armv7).
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:42 am

well it seems to double the power consumption of the rpi1, but it has wifi and bt embedded.. it would be nice to see a comparison between a pi2 with wifi and bt dongle and this :)
definitely i want one!

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:42 am

ric96 wrote:
jdb wrote:
0xFF wrote:Is it possible to hack with soldering iron to use external Wifi antena?
Yes. There is an option component and a footprint for a u.FL connector on the underside of the board.
Is it the bit under the hdmi port? Guessing from the fcc images.
No, that's the debugging connector, it won't be present on the production models. Look at your Pi2/Zero and you'll see the location where it would be fitted.

There seem to be some pads in the corner by the mounting hole next to GPIO Pin 2.

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:43 am

ric96 wrote: No, it's squeezed in on the underside between the trace keep-out for the onboard antenna and the GPIO connector.
Rockets are loud.
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:44 am

any HEVC / H.265 software decoding benchmarks? Could be a bit better than this
http://openelec.tv/forum/124-raspberry- ... i-2#156386 :-)

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:48 am

cjan wrote:1g of ram, 64bit cpu, what is point? more ram eating?
Did you miss the bit about 50% more performance?

(And if you cannot write decent software that runs in 1GB RAM, you are not trying hard enough, even in 64bit mode).
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:49 am

jdb wrote:
gregeric wrote:SDIO for WiFi I assume, GPIO's 34-39 alt3? Is it a 150Mbps part? iperf results?
Correct, bcm43438 is connected by SDIO for WiFi and UART for bluetooth. We don't do fat channels - 20MHz = 72mbit/s.
... So it doesn't share the usb bus with the 4 ports and Ethernet?
Also i am guessing the uart pins on the gpio header are untouched and can be used normally.
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:51 am

jamesh wrote:
(And if you cannot write decent software that runs in 1GB RAM, you are not trying hard enough, even in 64bit mode).
People need to realise more of this!
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:52 am

Is there a specific u.FL connector part number that matches that footprint?

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:52 am

ric96 wrote:
jdb wrote:
gregeric wrote:SDIO for WiFi I assume, GPIO's 34-39 alt3? Is it a 150Mbps part? iperf results?
Correct, bcm43438 is connected by SDIO for WiFi and UART for bluetooth. We don't do fat channels - 20MHz = 72mbit/s.
... So it doesn't share the usb bus with the 4 ports and Ethernet?
Also i am guessing the uart pins on the gpio header are untouched and can be used normally.
Did you listen to the Pimoroni Interview linked by Paul Webster ???
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:53 am

fanoush wrote:any HEVC / H.265 software decoding benchmarks? Could be a bit better than this
http://openelec.tv/forum/124-raspberry- ... i-2#156386 :-)
I would expect it to be about 50% better simply through raw CPU performance. I'm not sure how much faster NEON is on the A53 though, that might give even more performance.
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:55 am

Congratulations to the Pi Foundation and all its helpers for this thrilling birthday present. They always manage to amaze us. :-)

cjan wrote:1g of ram, 64bit cpu, what is point? more ram eating?
Well, so far Raspbian will run in 32-Bit mode, so no more RAM eating compared to a 32-Bit Pi2.

Also, it is possible to run light-weight desktop environments like LXDE in 64-Bit mode with only 1 GB of RAM on AMD/Intel PCs, so I think it will do on ARM devices, too... (Some say even GTK based Xubuntu in 64-Bit runs well with 1 GB only, but I don't know.)

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 8:56 am

jamesh wrote:
fanoush wrote:any HEVC / H.265 software decoding benchmarks? Could be a bit better than this
http://openelec.tv/forum/124-raspberry- ... i-2#156386 :-)
I would expect it to be about 50% better simply through raw CPU performance. I'm not sure how much faster NEON is on the A53 though, that might give even more performance.
EU talks about this in the Pimoroni Interview linked by Paul Webster viewtopic.php?f=63&t=137932#p915486
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:01 am

any idea, Windows 10 IoT Core 64bit for RPi3, will it happen?
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:03 am

beta-tester wrote:any idea, Windows 10 IoT Core 64bit for RPi3, will it happen?
You will have to ask Microsoft...

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:08 am

What's the kernel source / config / DT to use?

Thanks

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:09 am

is the onboard wifi able to do those fancy wifi stuff (hotspot, ad-hoc, accessPoint) there some other wifi chip sets has their problems with and may struggle?
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:18 am

Massi wrote:well it seems to double the power consumption of the rpi1, but it has wifi and bt embedded.. it would be nice to see a comparison between a pi2 with wifi and bt dongle and this :)
definitely i want one!
I have an analogue ammeter permanently attached to the power supply for my Raspberry PI 2 in my shed.
The power supply is connected via a regulator to a powered USB hub and from there I take power to my pi2 as well as to a "Digitazz" 300Mbps 802.11 wife dongle and a RTL2832U USB "Digital DVB-T" radio receiver.
When everything is on and the pi2 is busy current jumps up to about 0.4 A

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:20 am

beta-tester wrote:is the onboard wifi able to do those fancy wifi stuff (hotspot, ad-hoc, accessPoint) there some other wifi chip sets has their problems with and may struggle?
https://www.broadcom.com/products/Wirel ... ns/BCM4334
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:41 am

qan wrote:What's the kernel source / config / DT to use?

Thanks
Use the standard Pi kernel, there is a release today with the new drivers for the BT and Wifi.
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:43 am

It is great developing, never stops. However, I hope RPi B+ and RPi 2B will stay for long time for scaling the projects.
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:44 am

Paul Webster wrote:
gregeric wrote:I guess it performs a little better than the ~42Mbps max I'm getting with an esp8266 over SDIO?
I saw a benchmark showing it as a bit under 40Mbps - see Pimoroni blog post http://blog.pimoroni.com/raspberry-pi-3/
I've also benchmarked it - same ~40Mb/sec using iperf. Not stellar but good enough.

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:55 am

Hi,

Do all the Raspberry Pi 2 cases fit the Raspberry Pi 3?

Many thanks

Eddie

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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:56 am

eddberrypi wrote:Hi,

Do all the Raspberry Pi 2 cases fit the Raspberry Pi 3?

Many thanks

Eddie
Should do. A couple of LED's have moved though, in order to fit the Wifi aerial.
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Re: The Raspberry Pi 3 Model B Q&A thread

Mon Feb 29, 2016 9:56 am

[email protected] wrote:
I've also benchmarked it - same ~40Mb/sec using iperf. Not stellar but good enough.

-Gordon
That's completely normal for a 72MBit (raw) connection.
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