Go to advanced search

by jeffhaddow
Tue Oct 07, 2014 6:50 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello I thought I'd better set the record straight. When I got the program working it was on a new SD card. I did not want to disturb the old one by updating it as when I did that before it had crashed. However 2 weeks ago I went back to the old one and tried to update it. I discovered that it would...
by jeffhaddow
Tue Sep 23, 2014 10:17 am
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes - Solved

Hello Since it is 2 weeks since I updated the Raspian software and there have not been any crashes, I can say that the problem is cured. I feel a bit foolish as all I needed to do was run "sudo apt-get update && sudo apt-get upgrade". In my defence when I stopped updating the software (about 9 month...
by jeffhaddow
Fri Sep 12, 2014 7:00 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Thanks MaxK1 - the only part I "heard" was "but harmless I suspect".

All the best
Jeff
by jeffhaddow
Fri Sep 12, 2014 3:51 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello @MaxKi The o/p from "uname -a" is: Linux raspberrypi 3.12.28+ #709 PREEMPT Mon Sep 8 15:28:00 BST 2014 armv6l GNU/Linux Fingers crossed - the setup is still holding in there. However I remembered that fruit-uk had said, when I posted the end of /var/log/syslog last week, that "I wouldn't be ha...
by jeffhaddow
Fri Sep 12, 2014 9:02 am
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello

@ bulwinkle

Yes thanks - It seems to be a bug deriving from Ubuntu's recent roll out of a new version of the OS. I was just worried that it was related to taking the image of the SD card.

All the best
Jeff
by jeffhaddow
Wed Sep 10, 2014 10:23 am
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello The setup is working fine this morning. However I took your advice and made an image of the SD card with my Linux Ubuntu Laptop. When I copied it with the 'dd' utility I got the following message, although the copy seemed to have been created OK. no talloc stackframe at ../source3/param/loadpr...
by jeffhaddow
Tue Sep 09, 2014 7:08 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

OK - with regard to your advice about updating - I tried it before and the temperature program would not start - all I got was an incomprehensible error. So I decided to give it another go, and again after the update finished, on trying to restart the program the same incomprehensible (to me) messag...
by jeffhaddow
Tue Sep 09, 2014 3:18 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello MaxK1 The version of RPi is B rev1 one of the first batch. I don't update the firmware as it takes too long. The Noobs OS is about a year old, I just re-install it from the prompt each time it crashes config.txt: # uncomment if you get no picture on HDMI for a default "safe" mode #hdmi_safe=1 ...
by jeffhaddow
Mon Sep 08, 2014 9:54 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello @SRMI I decided to take your advice and fitted a 220uF electrolytic and a .05uFcapacitor, in parallel across the 3.3v line from the Gpio pins. I didn't put anything over the 5V as I'm not using that for the temperature sensors or the led display. Only time will tell if it was the source of the...
by jeffhaddow
Mon Sep 08, 2014 10:05 am
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello
@Burngate

Taking out pygame would mean that the Python program would be unable to create a window for the visual record of the last 3 days temperature readings. I think that the error is just what the Python program was busy with when the interruption occurred.

All the best
Jeff
by jeffhaddow
Mon Sep 08, 2014 9:14 am
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

@ fruit-uk Crashed lsat night around 12.50am as the clock was set 2 hrs froward last entry on syslog Sep 8 02:50:30 raspberrypi kernel: [37577.653208] w1_slave_driver 28-00000489a63a: 18S20 doesn't respond to CONVERT_TEMP. Sep 8 02:50:32 raspberrypi kernel: [37579.482515] w1_slave_driver 28-00000400...
by jeffhaddow
Sun Sep 07, 2014 10:15 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello

Thanks I'll give it a try. By unmount the two partitions I presume you mean take them off the Ubuntu bar on the LHS of the screen? I'm not clear on this instruction.

All the best
Jeff
by jeffhaddow
Sun Sep 07, 2014 6:15 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello @ drgeoff The problem is, when I have a look on the card with The Ubuntu it shows two partitions as separately mounted cards. One with the root files of the installed OS ant the other contains a .img file, but I presume its just the one for recovering the system - the NOOBS restart partition -...
by jeffhaddow
Sun Sep 07, 2014 1:02 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello @cyrano I do have a scope, but 7am on a Sunday morning is very early to rise and watch a scope. 5000v 1uf capacitors would be electrolytic? so being polarised may breakdown on a 250V AC circuit? I have tried rising early once and heard nothing from my electricity meter. But I think you may hav...
by jeffhaddow
Sat Sep 06, 2014 10:03 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello @gandar Thanks for your reply. I recover the OS from the SD card itself using the procedure "restart and Enter the recovery by holding down the shift key" and then choosing the raspian from the menu. I have not found a way to artificially induce the same crashes. It is a mystery to me why it c...
by jeffhaddow
Sat Sep 06, 2014 4:11 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello @drgeoff Thanks for your suggestion of running another RPi alongside the temperature measurement one. Last Friday week 29/8/14 the temp-RPi crashed again but the other one didn't crash, but the vncserver link went down. I therefore thought that the problem must be broadband glitch of some desc...
by jeffhaddow
Mon Aug 25, 2014 11:22 am
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

@Burngate

Hello

Thanks for your input, I'll have a look at the website later, it certainly looks like a useful avenue for my problem.

All the best
Jeff
by jeffhaddow
Sun Aug 24, 2014 9:30 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

@drgeoff

If it doesn't crash in a weeks time I'll try that. I'll make up a three wire cable leading to a Transistor and LED connected to one of the GPIO pins.

But I'll see if it does not crash first.

All the best
Jeff
by jeffhaddow
Sun Aug 24, 2014 8:31 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

@drgeoff Hello I do have a second RPi which is on the same mains plug (different power supply) -- I will try setting up a VNC link and keep it running at night see if it crashes -- I don't think that it will, as no GPIO pins will be used. But if it does it will show that its something to do with the...
by jeffhaddow
Sun Aug 24, 2014 8:02 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello drgeoff Thanks for your input, but I am loath to try your suggestion as disconnecting the sensors and display mean that the program would not be operating and I am used to the temperature readings. Also the system has worked for 3 and a half weeks once so It would take months to test via your ...
by jeffhaddow
Sun Aug 24, 2014 7:04 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

The only cable that is near to a power cable that powers a PC at that time of night is the cable to the 7 segment display, but I replaced the 2 meter speaker wire cable with screened cable connected to the GND pin on the RPi. The cable to the Water heater is not near the setup and no - switching thi...
by jeffhaddow
Sun Aug 24, 2014 6:16 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Re: Sunday Morning Crashes

Hello drgeoff Thank you for your reply. To answer your questions: I have connected two temperature sensors DS18B20 wired in parallel to pins 1 - (3.3V) pin6 - (GND) pin7 - (GPIO 4) with a 4.7K resistor between pin1 and pin7. Two Adafruit 0.56" 4-Digit 7-Segment Display w/I2C Backpack - Green wired i...
by jeffhaddow
Sun Aug 24, 2014 2:38 pm
Forum: Troubleshooting
Topic: Sunday Morning Crashes
Replies: 54
Views: 6894

Sunday Morning Crashes

Hello I'm posting here after 9 months trying to fix the problem. I have a RPi dedicated to read two temperature sensors (one outside and one in living room) and display digital readout of these temperature on two 7-segment 4 digit displays. I also have a vncserver link to my lap-top to display the l...
by jeffhaddow
Mon May 05, 2014 9:07 am
Forum: Bare metal, Assembly language
Topic: gpio led sudo segmentation fault
Replies: 9
Views: 3674

Re: gpio led sudo segmentation fault

Hello I'm at the same stage in the same book as you. From what I've gleaned from looking around the subject "Segmentation Fault" means that your program is trying to access memory outside of the permitted section. As far a fixing the program try putting .section .init .global main .func main At the ...
by jeffhaddow
Sun Mar 16, 2014 9:32 am
Forum: Bare metal, Assembly language
Topic: Err: arm-none-eabi-as: Command not found
Replies: 14
Views: 18869

Re: Err: arm-none-eabi-as: Command not found

The problem as far as I remember it was fixed by following a thread in the "Troubleshooting" section of the Baking Pi website. The basic problem is that the code is written in 32 bit code and my Ubuntu OS is a 64 bit machine code..

Have a look at the Page on troubleshooting

All the best
Jeff

Go to advanced search