Raspberry Pi Forums

johnbeetem

I ordered on March 3 and my Order Conf. Number was: 188xxx. My Pi arrived today, but sadly it will not boot. I get a red power light, but nothing more. :( A good starting point is the RasPi Troubleshooting wiki page: http://elinux.org/R-Pi_Troubleshooting . If you only get a red power light, it's m...

johnbeetem

I just got shipping confirmation from Newark: my Model B is to be shipped today 6 June 2012. I ordered 4 March 2012. Most recent estimated ship date at newark.com was 14 June 2012.

Better plug in my heater (so much more poetic than "soldering iron") in case I need to touch up X1

johnbeetem

Even a broken Pi is a great "educational device" :D. Is there a more permanent solution to this? Keeping the crystal below 15c is not so easy. I really don't want wait for RS slow support. Some suggestions if you're handy with a "heater" (so much more poetic than "soldering iron" :-)) 1. Resolder X...

johnbeetem

I'm of two minds about Stallman. On the one hand he can appear to be seriously over-the-top, and yet on the other he's visionary, not only predicting the way things would turn, but also providing a mindset to avert a danger nobody else had spotted. Simon RMS is sui generis . He is probably the most...

johnbeetem

Perhaps proprietary software is not inherently immoral, but it certainly can lead to immoral behavior. Free (libre) software protects you from this. However we have law enforcement to protect ourselves from companies producing software which breaks the law, and there's nothing actually stopping som...

johnbeetem

But then [RMS] also called Steve Jobs evil on the day after he died so not much of a fan there either! I don't think RMS called Steve Jobs evil. If you have a quote to that effect, please supply a link. RMS did accuse Jobs of evil things, such as turning computers into "digital handcuffs" and using...

johnbeetem

I measured resistance on my f1/f2 fuses at 5.5/5.52ohms each with no power to the pi. But really, I shouldn't be experiencing any voltage drop at all using a powered hub, although it depends on how good the hub is apparently. I'll have to take it apart and see what's what! Glad to know that my usb ...

johnbeetem

If such a thread is going to exist, then I have a question I'd very much like answered: Richard Stallman and the free software institute seem to think that propriety software is actually immoral. But I can't for the life of me find out why . Does anyone know? Here's a link to GNU's philosophy page:...

johnbeetem

I am using a power supply that is rated at 5V 1A which I have measured the voltage off load and it is 5.0V when using this to power my PI and measuring with a DVM between TP1 and TP2 I am only measuring 4.69V could this be why the keyboard is not being seen (have tried the keyboard with a powered h...

johnbeetem

Sure I contacted RS, but they said to call again Wednesday for these holidays and things for thats when the team is in, do I -need- to let them know I'm sending down a replacement, or attach a covering letter with a copy of the invoice and the Pi for a replacement? It depends on the distributor, bu...

johnbeetem

Switched off my raspberry pi yesterday, working fine with Ethernet, used with SSH access. Switched it on today, to find it won't connect to the router now, no link lights on the pi (Just PWR and OK) or the router (Layer 1 problem) As mentioned upstream, it could be X1. However, it could be other th...

johnbeetem

If your case is a good thermal insulator -- e.g., plastic -- with no ventilation then I could easily see RasPi overheating. One solution is a perforated box so air can flow. If you put heat sinks on the SoC and USB/Ethernet chips this can help provided that there is some air flow. Another solution m...

johnbeetem

It sounds like it might be a power problem. Start with the RasPi Wiki hardware page: http://elinux.org/Rpi_Hardware#Power_Supply_Problems and the RasPi Wiki troubleshooting page: http://elinux.org/R-Pi_Troubleshooting . Here are some hypotheses. JMO/YMMV You say your voltage is ~5V. In general, peop...

johnbeetem

Update : I've managed to spark things into life. For me this was as simple as plugging in a LAN connection. All of a sudden the Link lights lit up, and the keyboard and mouse also flashed into life. As a former colleague of mine used to say: "how bizarre!" The only thing I can think of is that the ...

johnbeetem

I had the same issue (Ethernet and USB did not work). I looked at the output of the 25MHz crystal (X1) with an oscilloscope, and realized it wasn't oscillating. I touched up the solder joints on the crystal, and it now works like a champ. It's a little upsetting that I had to do that, but it's fast...

johnbeetem

Some suggestions: When a 10/100 Ethernet over twisted pair first starts up, it tries to auto-negotiate the fastest possible setting. If auto-negotiation fails, both ends drop down to 10Mb/s half duplex as the default setting. I would first try running "ping" for a while to see how well 10Mb/s HDX is...

johnbeetem

Yeah - a command line invoking sed ( s tream ed itor) to automatically edit sources.list. Its stuff for bearded sandal wearing geeks, the sort who despise people who use visual editors. Remember ed in MSDOS? That was a sort of cousin to the command line counterpart of sed. Which was called ed. Whic...

johnbeetem

After a long time with just a place-holder, http://www.zedboard.org has come to life with photos, specs, pricing, and documents. ZedBoard is a "community-supported" development board for the new Xilinx Zynq FPGA with integrated 800 MHz dual-core ARM Cortex-A9. ZedBoard is IMO surprisingly expensive ...

johnbeetem

Invasion of the Tiny, Linux-Powered PCs Katherine Noyes, LinuxInsider http://www.linuxinsider.com/rsstory/75259.html "More people bought small, cheap computers running */Linux than that other OS, and the world saw that things were fine without Wintel," [blogger Robert Pogson] explained. "2012 will ...

johnbeetem

One possibility: Check diode arrays D2 and D3 near HDMI connector S3 very carefully through a strong magnifier. If the red differential pair is shorted together with a solder bridge you'll lose the red signal. I don't know which pair is red.

johnbeetem

There are two other components that can cause this sort of problem. The first is the micro USB cable: some of these have very thin wires that have enough voltage drop to cause RasPi to fail after a while. The other is RasPi's polyfuse F3. As RasPi warms up the resistance of F3 increases and if the p...

johnbeetem

Troubleshooting step 1 is to see if your power supply and RasPi's power components are behaving themselves. A good place to start is the RasPi Hardware wiki: http://elinux.org/Rpi_Hardware. Scroll down to "Power" and "Power Supply Problems".

johnbeetem

If the boot code, like on the APC, is in a fixed BOOT prom chip, unbricking your device involves physically removing the PROM and reprogramming it. This might require unsoldering the ROM chip, and an ePROM burner. If the boot code, like on the Pi, is on the SD card, unbricking your device involves ...

johnbeetem

Tiny Pluggable Linux ARM Computers Are Red-Hot
Carla Schroder

https://www.linux.com/learn/tutorials/5 ... re-red-hot

Do these little gadgets have any practical value? My Magic 8 ball says "Reply hazy, try again".

johnbeetem

Indeed. More importantly, ... our hardware will be unlocked ... install it on a microSD card and re-flash Which, with 4x usb, vga and the price including a proper psu, could well make it a pi-eater. Simon IMO it will boil down to how well each community works and how open the documentation ends up ...

Search found 945 matches

Re: Anyone in the US get a ship date from Newark (Element/14

Re: Anyone in the US get a ship date from Newark (Element/14

Re: NO usb device works

Re: Open/Closed or Somewhere-in-between source?

Re: Open/Closed or Somewhere-in-between source?

Re: Open/Closed or Somewhere-in-between source?

Re: power, usb, sd and keyboard issues.

Re: Open/Closed or Somewhere-in-between source?

Re: Am I lacking power ?

Re: Pi = busted, yay.

Re: Pi = busted, yay.

Re: Pi dies after long time - heat?

Re: Crash after a while 1 to 30 Min

Re: USB & Ethernet dead

Re: USB & Ethernet dead

Re: Ethernet only running half-duplex, 10M

Re: VIA's entry into the low cost computer market

ZedBoard: Xilinx Zynq 7020 development board

Re: News articles and blog posts about Raspberry Pi

Re: HDMI working, but screen green...

Re: Maybe time for an RMA ?

Re: Red LED on Faint Green LED

Re: VIA's entry into the low cost computer market

Re: News articles and blog posts about Raspberry Pi

Re: VIA's entry into the low cost computer market