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by mic_s
Sat Jun 09, 2018 2:45 pm
Forum: Off topic discussion
Topic: GPU Hardware and/or Software Suggestion
Replies: 4
Views: 1463

Re: GPU Hardware and/or Software Suggestion

Lot of options : option 1 : https://www.raspberrypi.org/forums/viewtopic.php?t=194952 As ghans mentined: room for improvement In the meantime option 2 may be of value : https://github.com/mn416/QPULib (small footprint, easy and ready to run) When it comes to performance: option 3 : https://github.co...
by mic_s
Mon May 14, 2018 12:26 pm
Forum: Troubleshooting
Topic: Raspberry Pi Zero W - Defective WiFi chip
Replies: 10
Views: 1263

Re: Raspberry Pi Zero W - Defective WiFi chip

You are right, the current pi-0w is with CYW43438. examples: mouser: CYW43438KUBGT ... 5000+ .. 5.46 $ digikey: CYW43438KUBGT .... 5000+ ... 5.125$ The price points you mention are the (current) minium. Please note, the CYW43438KUBG is a 63-ball WLBGA 0.40 pitch. Probably a soldering challenge for t...
by mic_s
Mon May 14, 2018 12:07 pm
Forum: Troubleshooting
Topic: Raspberry Pi Zero W - Defective WiFi chip
Replies: 10
Views: 1263

Re: Raspberry Pi Zero W - Defective WiFi chip

Apart from the time required, take the price for the CYW43455 in consideration : some examples: mouser: BCM43455HKUBG … 1000+ … 3.89 $ digikey: BCM43455XKUBGT-ND …. 5000+ …. 5.92500 $ arrow: CYW43455XKUBGT …. 5000+ …. 8.19 $ cypress: CYW43455xkubgt …. 5.69 $ I would buy a new pi-0W and use the defec...
by mic_s
Tue May 08, 2018 8:18 am
Forum: General discussion
Topic: Can a USB monitor work with pi3?
Replies: 10
Views: 15262

Re: Can a USB monitor work with pi3?

The Raspberry Pi does not have a USB3 BUS which is needed for I/O !!!!!!
USB3 is not needed here.
That said "USB20 connection may affect brightness settings and image quality" (https://www.asus.com/us/Commercial-Monitors/MB168BPlus/)
.
by mic_s
Mon Apr 23, 2018 3:34 am
Forum: General discussion
Topic: The Raspberry Pi Desktop OS 64 bit
Replies: 69
Views: 25848

Re: The Raspberry Pi Desktop OS 64 bit

... Risc-V ... Risc -V ? We are off-topic. But if you like you are free to build your own 32-bit-risc-v processor with low-cost fpgas ( 5-10 US-$ in single quantities, for a 32bit-single-core-riscV ) on your own raspberry pi HAT. Communication with the pi (0,1,2,3,3+..) via SMI (or usb, or I2C). Ri...
by mic_s
Fri Mar 09, 2018 11:36 am
Forum: General discussion
Topic: Looking for Long Range Omnidirectional Antenna
Replies: 10
Views: 1742

Re: Looking for Long Range Omnidirectional Antenna

Depends on the required bandwidth. LoRaWan (LoRa = Long Range) may be an option. Introduction: https://www.hackster.io/idreams/getting-started-with-lora-fd69d1 Examples: http://cpham.perso.univ-pau.fr/LORA/RPIgateway.html (and links therein) https://www.rs-online.com/designspark/building-a-raspberry...
by mic_s
Mon Feb 19, 2018 10:50 am
Forum: General discussion
Topic: Running AI algorithms on Rpi
Replies: 55
Views: 20910

Re: Running AI algorithms on Rpi

When it comes to object recognition with a single 5$-Pi Zero 1.3 : https://www.youtube.com/watch?v=zRaQS5MA2fU (real time (!), MobileNet) No conection to extern servers and no extra Hardware (except the cam and PSU) is required. The arm core and the 12 Vector Processing Units in your pi 0 are more t...
by mic_s
Fri Feb 16, 2018 11:36 pm
Forum: Compute Module
Topic: Okay to place components under Compute Module?
Replies: 3
Views: 1346

Re: Okay to place components under Compute Module?

The problem is the Power Dissipation of your LAN9514.
( typical nearly 1 W when 100BASE-TX )
by mic_s
Sat Feb 10, 2018 8:20 pm
Forum: General discussion
Topic: Awesome Projects
Replies: 17
Views: 2796

Re: Awesome Projects

Awesome pi projects ? What is “awesome” ?? The answer depends on your interests / your skills. If you are interested in REAL TIME object recognition with a single raspberry pi Zero 1.3 : https://www.youtube.com/watch?v=zRaQS5MA2fU please note : Here the 12 SIMD QPUs are used – no extra Hardware (exc...
by mic_s
Sat Feb 10, 2018 8:17 pm
Forum: General discussion
Topic: Awesome Projects
Replies: 17
Views: 2796

Re: Awesome Projects

@ejolson nice project side note If you use the GPUs (more precisely: their 12 SIMD QPUs) in your Pi0s, a nice demonstration of different communication methods on different scales would be possible: "long distance" MPI (message passing interface) comunication between your Pi0s and "short distance" (s...
by mic_s
Fri Feb 09, 2018 11:57 am
Forum: General discussion
Topic: Can you put a pi zero on a pi 3 to boost performance
Replies: 31
Views: 4232

Re: Can you put a pi zero on a pi 3 to boost performance

An interesting side note : There are cases in witch it makes sense to add an extra Arm core to your BCM2837: In fact this is already done: The 43143 WIFI/BT chip on your Pi3-PCB and/or your Pi0W-PCB is an example. It does include an embedded ARM-Cortex-M3 core (see Fig 2, page 5/44, http://www.cypre...
by mic_s
Wed Feb 07, 2018 6:28 pm
Forum: General discussion
Topic: Can you put a pi zero on a pi 3 to boost performance
Replies: 31
Views: 4232

Re: Can you put a pi zero on a pi 3 to boost performance

Can you put a pi zero on a pi 3 to boost performance Yes and No. The exact answer depends on your problem. The extra Pi0 gives you ... (a) extra GPIOs, (b) an extra HDMI, (c) an extra SD-slot, (d) extra 512 Mbyte RAM, (e) an extra CSI, (f) an extra GPU, (g) extra … If you can make any use of those ...
by mic_s
Mon Jan 15, 2018 10:42 pm
Forum: Graphics programming
Topic: OpenCL on the VideoCore IV!
Replies: 87
Views: 64141

Re: OpenCL on the VideoCore IV!

would this work on the RPi Zero family? Pi0, Pi2, Pi3 all the same VideoCore IV., so any benchmark (if based on the very VideoCore IV) will give the same result. ( That said, there is a very, very small difference between the GPU in Pi0 and the GPU in Pi3 : Pi0 : The GPU is the „owner“ of the L2 Ca...
by mic_s
Wed Jan 10, 2018 12:19 pm
Forum: General discussion
Topic: pi zero w in quantities of 10...50
Replies: 116
Views: 25251

Re: pi zero w in quantities of 10...50

not profit to the charity as far as I can see
Ok. You are right. ModMyPi's offer is a "trial balloon". Rasp Ltd is watching the development. We will see the results in a month or so.
.
by mic_s
Wed Jan 10, 2018 11:57 am
Forum: General discussion
Topic: pi zero w in quantities of 10...50
Replies: 116
Views: 25251

Re: pi zero w in quantities of 10...50

It is always claimed there is little profit made on a Pi so just add whatever profit a Pi 3B does make to the Zeroes and sell at that price. Done. If you require Raspberry Pi Zero in bulk, ModMyPi allow up to 20 unit purchases of the Raspberry Pi Zero with pre-soldered headers. Same with Rasperry P...
by mic_s
Sat Jan 06, 2018 9:10 pm
Forum: Bare metal, Assembly language
Topic: Machine Learning on the Video Core of the Pi's
Replies: 4
Views: 3393

Re: Machine Learning on the Video Core of the Pi's

Numerical analysis with Pi Zero ? Yes. There are 12 SIMD processing units (QPUs) in your Pi Zero. Each of those QPUs with 16 FloatingPoint-Units. Lot of options: (1) QPULib (C,C++, small footprint) details : https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=145447&p=962040 https://github.com/m...
by mic_s
Wed Dec 06, 2017 12:41 pm
Forum: General discussion
Topic: First "REAL" RPi Rack
Replies: 35
Views: 26032

Re: First "REAL" RPi Rack

It's more expensive.
The other way around.

Element14:
Pi3B, 10+ 36.9$, 150+ 34.12$
CM3, 10+ 30.49$, 100+ 29.68$
CM3LT, 10+ 25.25$, 100+ 24,31$
by mic_s
Fri Dec 01, 2017 11:29 am
Forum: Graphics programming
Topic: OpenCL on the VideoCore IV!
Replies: 87
Views: 64141

Re: OpenCL on the VideoCore IV!

Partial OpenCL eh? Don't blame doe300. Blame the (nowadays old) videocoreIV/QPUs-Design. As he, eupton and many others pointed out bevore, one of the performance restrictions is memory bandwidth. Options ?? (1) Upcoming videocoreV (16 bit floats, and other advantages .. e.g. it don't require CMA) (...
by mic_s
Fri Dec 01, 2017 10:19 am
Forum: AIY Projects
Topic: New Google AIY Kit for the rasperry
Replies: 1
Views: 297

New Google AIY Kit for the rasperry

Here is a new Google AIY Design Kit. It is based on Intel/Movidius 2450. PCB is zero-formfactor. Target pricepoint : 45-55 USD (pi zero not included)

Details:

https://www.blog.google/topics/machine- ... vices-see/
by mic_s
Wed Nov 29, 2017 1:04 am
Forum: Compute Module
Topic: Intra-module communication via ethernet.
Replies: 2
Views: 952

Re: Intra-module communication via ethernet.

I see plenty of people making CM-backplanes, but using USB for intra-module communications. The reason for this is : It is by very far the simplest Method to use the embedded USB20. Why not use GMII ? The reason for this is very, very simple: The BCM2837 SOC dosn't give us an extern GMII … … but wa...
by mic_s
Sat Nov 25, 2017 4:35 pm
Forum: General discussion
Topic: Getting more processing power from Raspberry Pi 3
Replies: 13
Views: 9852

Re: Getting more processing power from Raspberry Pi 3

Lot of options : Option 1: change your prefered language to C. (Pi0, Pi0W, Pi2,P3) Option 2: use all four a53 cores.(Pi3) Option 3: use the embedded Neons.(Pi2,Pi3) There are ready to use assembler-libraries, callable from your prefered language. Option 4: use the embedded 12 QPUs (assembler, c or p...
by mic_s
Fri Nov 17, 2017 1:24 pm
Forum: General discussion
Topic: Using raspberry pi zero as DSP
Replies: 3
Views: 1877

Re: Using raspberry pi zero as DSP

Is there a way I Can use the pi zero as a custom dsp for a computer Yes, yes and yes. There are multible ways. Use the arm6 in your Pi Zero (when you are interested in audio-dsp and other applications with low requirements) and/or use the 12 SIMD processing cores (QPUs) in your Pi Zero (when you ne...
by mic_s
Sun Nov 12, 2017 8:05 pm
Forum: General discussion
Topic: Pi at SC17 in Denver
Replies: 0
Views: 220

Pi at SC17 in Denver

High Performance Computing with Rasperry pi ???

Yes.
LANL (Los Alamos National Lab) plan to use RasperryPi clusters for Super Computing Research.
This Week SC17 (Supercomputing Conference 2017) in Denver will give all the details.

Stay tuned.

mic_s
by mic_s
Sat May 20, 2017 2:48 pm
Forum: Bare metal, Assembly language
Topic: VC core vc ARM benchmark
Replies: 33
Views: 5982

Re: VC core vc ARM benchmark

(1) Ok … QPU-stuff : Good (but old) news: You are not forced to do assembly to program the SIMD-QPUs : https://github.com/mn416/QPULib Its an Domain Sepecific Language (DSL), shortly discussed in : https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=145447 (2) QPU-Benchmarks (QPU/ARM/NEON) : htt...
by mic_s
Fri May 12, 2017 1:26 pm
Forum: General discussion
Topic: Using Raspberry Pi Zero with SDR
Replies: 10
Views: 9177

Re: Using Raspberry Pi Zero with SDR

When it comes to zero's processing power for SDR… please take into acount the 12 SIMD (data width = 16*32 bits = 512 bits) QPU-cores in every zero. Some experience is required … but you don't need an EE degree. If you are interested … start with : https://github.com/nineties/py-videocore (Roughly sp...

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