to get the newest (and fastest binaries) from those distros ? With the latest 3.6.11 kernel and optimised libs using the HW floating point and other hardware goodies, the RPi is way faster that when running the default, half-a-month old packages.
2) Have you tried overclocking ? The UK-made RPis with Samsung RAM have no issues running at 1Ghz (from the default of 700Mhz) and with RAM at 600Mhz (default 400Mhz). The Chinese ones with Hynix RAM work okay at 800-900Mhz with 450-500Mhz RAM speed.
"raspi-config" and choose the overclocking option. None of them will void your warranty (you can void it only if you edit config.txt by hand and use the higher voltages needed to reach 1.1Ghz or higher)
You can plop a RAM heatsink on top of the CPU but unless you run-it outside in the summer, it's not really required for overclocking.
3) For compiles, configure the memory-split so the GPU will get only 16Mb of RAM and give the rest to the ARM. You won't have 3D or HW Video decoding (X11 still works) but you will have lots of RAM for compiling.
Don't get too excited about a 1Gb version. The Broadcom CPU can only access one LP-DDR memory chip.
At the moment none of the RAM manufacturers are producing single-chip LP-DDR RAM chips larger than 512Mb - and it's not cost effective for them to build one just for The Raspberry Pi Foundation.
There is a 1Gb chip in that form factor on the market at the moment but it's made of two stacked 512Mb modules and requires two chip-select lines - which the Broadcom CPU does not have.
So it will be 512Mb max for some time - play with the new dynamic RAM sizing (details on the RaspberryPi forums) that gives most of the RAM to the CPU if the GPU is not used in that moment.
Thanks... i'll forward-it to my company's "Open Source Approval Committee" next time i'll have to get an approval for instaling GNU-licenced software. (that's not a joke, and my company is not the only one doing this)
Unfortunatelly they kept the GPLv3 licence so it will never get used in any corporation large enough to have a "normal" legal team.:-( I looks like Microsoft "educated" most of the lawyers that GPLv3 means trouble. So Samba will be used by either small companies where the owner/CEO is smart enough that it does not care or by Google-level companies where the engineers have a word to say. All the rest will have their lawyers say: "GPLv3 does not allow you to use Samba to manage protected information so we better buy some proprietary software without those limitations"
Get a DC Volt-meter. While RPi is running and accesing USB devices measure between TP1 & TP2 points on the board. If the voltage is near or below 4.75V or near or above 5.25V the fault resides in your power supply. The ideal powersupply should be a clean 5.1V one 1A or more - as you have some voltage drops over the polyfuses. I have two "original" 256Mb RPis Made In China and all the common USB issues i had were fixed with better power supplies (old 5V,2A PSP power brick & 5V,3A DC 7~24V to 5V step-down from dx.com) Also - use a powered USB hub.
LinkedIn is a good way of seeing where all of your old colleagues, friends and classmates are working now. I set-up my LinkedIn account to not accept InMail and the only contact info i gave is: "call me, i have the same phone number you knew". I log-in once a couple of months and reject/ignore all requests from people i don't personally know (recruiters) and accept the ones from friends/colleagues/classmates... If i'll ever go job-seeking, with only a couple of clicks i'm open to all recruiters.
Ah, but a firmware update is very easy to install. Just power-cycle or reset the device and push a firmware update OVER-THE-AIR. What could possibly go wrong ? [trollface.jpg]
Quot from the PDF on their site (emphasys mine): ----- 4 Bootloader
The TD1202 module contains an integrated bootloader which allows reflashing the module firmware either over the RX/TX UART connection, or over the air using the built-in RF transceiver.
The bootloader is automatically activated upon module reset. Once activated, the bootloader will monitor the UART/RF activity for a 200 ms period, and detect an incoming update condition.
If the update condition is met, the TD1202 will automatically proceed to flash the new firmware with safe retry mechanisms, or falls back to normal operation.
Using the PoP memory means that the RPi doesn't need PCB traces from the CPU to a memory socket which results in: - Smaller PCB without a RAM socket - Fewer layers in the PCB ==> Cheaper.
No, just the concept of 7.85" tablets. With a 2 minute-long movie in which Apple executives, on a white background, will describe the magic of those extra 0.85 inches.
Had the Foundation received a generous donation at the planing stage, a year or two ago, maybe they could have done better in regard to the GPU (the only closed-source item on that board).
For the current price and given that the only major investment was a mortage on Eben & Liz's house, the Raspberry Pi is the only device fitting the bill right now, as i haven't seen anyone else trying to bring to the masses a simmilar hardware platform at a simmilar price point that is 100% Open Source.
Give-it to The Raspberry Pi foundation. In a world that is becoming increasely dependent on computers, they strive so today's and tomorrow's children won't become mindless consumers, regarding any electronic device as magic.
3000 WiFi radios emiting together on how many channels and using what bandwidth ? Even if they drop to 1Mbps and use all 11 US 802.11 2.4Ghz channels, the collisions caused by ~270 devices on the same channell will make that network unuseable.
What about the trolls with a WiFi jammer (like a microwave over with a screwdriver jammed in the door safety switch) ? Turn-it on and watch the pile-ups.
Or will they use all channels in the 802.11n 5Ghz spectrum ?
As long as you are allowed to mess with the SMS message header, you can do this on ANY phone - it's part of the GSM standard - Small Message Service was intended for testing & internal use, nowhere is stated that the "Sender" field must be the actual sending phone number. In fact, that field is alphanumerical, you can put anything in there, not just numbers. Also, there's nothing in the GSM network to prevent this, the message is routed by destination, not by sender.
I was sending "faked" messages like those over 10 years ago using the "service" menus on old Nokia & Motorola GSM phones.
Anyone relying on those SMS headers for authentication is either stupid or malicious.
Slashdot Mirror
In fact, as is typical on slashdot, the "news" is about 7 months old, so there are a lot more related materials:
http://www.youtube.com/watch?v=zGvHxLEhC5A
http://www.youtube.com/watch?v=EwAgZ2WLQyA
http://www.youtube.com/watch?v=KEfqmBMydZw
http://www.youtube.com/watch?v=ukNkCnNJuR8
YouTube link with the robots in action.
Yes it will ... it has 65x GPIO, you add the required level converters and use a bit-banging driver.
Or you can get a cheap USB-Parallel adapter if you just want to print.
h264 1080p HW-assisted playback over DVI with Audio and CEC.
Looks like your RPi is overclocked :-)
1) Have you done
apt-get update
apt-get dist-upgrade
(or "raspi-config" and select "update")
to get the newest (and fastest binaries) from those distros ? With the latest 3.6.11 kernel and optimised libs using the HW floating point and other hardware goodies, the RPi is way faster that when running the default, half-a-month old packages.
2) Have you tried overclocking ? The UK-made RPis with Samsung RAM have no issues running at 1Ghz (from the default of 700Mhz) and with RAM at 600Mhz (default 400Mhz). The Chinese ones with Hynix RAM work okay at 800-900Mhz with 450-500Mhz RAM speed.
"raspi-config" and choose the overclocking option. None of them will void your warranty (you can void it only if you edit config.txt by hand and use the higher voltages needed to reach 1.1Ghz or higher)
You can plop a RAM heatsink on top of the CPU but unless you run-it outside in the summer, it's not really required for overclocking.
3) For compiles, configure the memory-split so the GPU will get only 16Mb of RAM and give the rest to the ARM. You won't have 3D or HW Video decoding (X11 still works) but you will have lots of RAM for compiling.
Don't get too excited about a 1Gb version.
The Broadcom CPU can only access one LP-DDR memory chip.
At the moment none of the RAM manufacturers are producing single-chip LP-DDR RAM chips larger than 512Mb - and it's not cost effective for them to build one just for The Raspberry Pi Foundation.
There is a 1Gb chip in that form factor on the market at the moment but it's made of two stacked 512Mb modules and requires two chip-select lines - which the Broadcom CPU does not have.
So it will be 512Mb max for some time - play with the new dynamic RAM sizing (details on the RaspberryPi forums) that gives most of the RAM to the CPU if the GPU is not used in that moment.
Thanks ... i'll forward-it to my company's "Open Source Approval Committee" next time i'll have to get an approval for instaling GNU-licenced software.
(that's not a joke, and my company is not the only one doing this)
especially the lawyers ...
Unfortunatelly they kept the GPLv3 licence so it will never get used in any corporation large enough to have a "normal" legal team. :-(
I looks like Microsoft "educated" most of the lawyers that GPLv3 means trouble.
So Samba will be used by either small companies where the owner/CEO is smart enough that it does not care or by Google-level companies where the engineers have a word to say.
All the rest will have their lawyers say: "GPLv3 does not allow you to use Samba to manage protected information so we better buy some proprietary software without those limitations"
The ones from RS are still made in China - so you have a choice.
Get a DC Volt-meter.
While RPi is running and accesing USB devices measure between TP1 & TP2 points on the board.
If the voltage is near or below 4.75V or near or above 5.25V the fault resides in your power supply.
The ideal powersupply should be a clean 5.1V one 1A or more - as you have some voltage drops over the polyfuses.
I have two "original" 256Mb RPis Made In China and all the common USB issues i had were fixed with better power supplies (old 5V,2A PSP power brick & 5V,3A DC 7~24V to 5V step-down from dx.com)
Also - use a powered USB hub.
LinkedIn is a good way of seeing where all of your old colleagues, friends and classmates are working now. ...
I set-up my LinkedIn account to not accept InMail and the only contact info i gave is: "call me, i have the same phone number you knew".
I log-in once a couple of months and reject/ignore all requests from people i don't personally know (recruiters) and accept the ones from friends/colleagues/classmates
If i'll ever go job-seeking, with only a couple of clicks i'm open to all recruiters.
30k USD a year ?
That is a nice sallary for Eastern Europe.
That is a HUGE sallary for India or China.
Ah, but a firmware update is very easy to install. Just power-cycle or reset the device and push a firmware update OVER-THE-AIR. What could possibly go wrong ? [trollface.jpg]
Quot from the PDF on their site (emphasys mine):
-----
4 Bootloader
The TD1202 module contains an integrated bootloader which allows reflashing the module firmware either over the RX/TX UART connection, or over the air using the built-in RF transceiver.
The bootloader is automatically activated upon module reset. Once activated, the bootloader will monitor the UART/RF activity for a 200 ms period, and detect an incoming update condition.
If the update condition is met, the TD1202 will automatically proceed to flash the new firmware with safe retry mechanisms, or falls back to normal operation.
How about Cray T90 - looking like something out of David Lynch's Dune:
http://www.craywiki.com/images/f/fb/T916.jpg
now THAT was a computer any CEO was proud to show to visitors.
Not a row of boring cabinets.
That is already included in the Linux kernel sources (GPL + BSD licence) available on the RPi kernel github: https://github.com/raspberrypi/linux
And it works.
I'm going to order another Raspberry Pi because of this announcement.
Using the PoP memory means that the RPi doesn't need PCB traces from the CPU to a memory socket which results in:
- Smaller PCB without a RAM socket
- Fewer layers in the PCB
==> Cheaper.
No, just the concept of 7.85" tablets. With a 2 minute-long movie in which Apple executives, on a white background, will describe the magic of those extra 0.85 inches.
What's your opinion on Raspberry Pi (the $25 computer) ?
Had the Foundation received a generous donation at the planing stage, a year or two ago, maybe they could have done better in regard to the GPU (the only closed-source item on that board).
For the current price and given that the only major investment was a mortage on Eben & Liz's house, the Raspberry Pi is the only device fitting the bill right now, as i haven't seen anyone else trying to bring to the masses a simmilar hardware platform at a simmilar price point that is 100% Open Source.
Give-it to The Raspberry Pi foundation.
In a world that is becoming increasely dependent on computers, they strive so today's and tomorrow's children won't become mindless consumers, regarding any electronic device as magic.
3000 WiFi radios emiting together on how many channels and using what bandwidth ? Even if they drop to 1Mbps and use all 11 US 802.11 2.4Ghz channels, the collisions caused by ~270 devices on the same channell will make that network unuseable.
What about the trolls with a WiFi jammer (like a microwave over with a screwdriver jammed in the door safety switch) ? Turn-it on and watch the pile-ups.
Or will they use all channels in the 802.11n 5Ghz spectrum ?
As long as you are allowed to mess with the SMS message header, you can do this on ANY phone - it's part of the GSM standard - Small Message Service was intended for testing & internal use, nowhere is stated that the "Sender" field must be the actual sending phone number. In fact, that field is alphanumerical, you can put anything in there, not just numbers. Also, there's nothing in the GSM network to prevent this, the message is routed by destination, not by sender.
I was sending "faked" messages like those over 10 years ago using the "service" menus on old Nokia & Motorola GSM phones.
Anyone relying on those SMS headers for authentication is either stupid or malicious.