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by oscarv
Fri Aug 25, 2017 9:39 am
Forum: Raspbian
Topic: Raspbian jessie image will not boot - could not expand filesystem
Replies: 24
Views: 10085

Re: Raspbian jessie image will not boot - could not expand filesystem

>> Test this release I have not tried that one just yet - but indeed, a slightly older version worked fine with win32diskimager. As does the last OSMC image. Just the last two Raspbian image files seem to cause this issue. I agree - it's probably the same problem that dogged me when I used dd under ...
by oscarv
Fri Aug 25, 2017 12:52 am
Forum: Raspbian
Topic: Raspbian jessie image will not boot - could not expand filesystem
Replies: 24
Views: 10085

Re: Raspbian jessie image will not boot - could not expand filesystem

I had exactly the same problem. Using 4 different SD cards that worked well before, and on two different Pi's. In my case, the problem turned out to be that I used win32diskimager. Using Etcher, the problem was gone. Very strange, since I've been using win32diskimager for years... Regards, Oscar.
by oscarv
Wed May 11, 2016 12:36 pm
Forum: Raspbian
Topic: Console on USB port
Replies: 2
Views: 1267

Re: Console on USB port

Dave,

Works perfectly, thank you very very much!

Kind regards,

Oscar.
by oscarv
Sat May 07, 2016 11:38 pm
Forum: Raspbian
Topic: Console on USB port
Replies: 2
Views: 1267

Console on USB port

Hi, I've used up all the gpio pins on my project, but would like to use a USB-to-Serial cable as my console. In other words: plug in a USB-to-Serial cable and use that instead of the gpio serial port. In older versions of Raspbian, this was simple: 1) in boot/cmdline.txt, replace all ttyAMA0 with tt...
by oscarv
Sun Feb 01, 2015 11:28 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Removing pull-up resistors in GPIO pin 2 & 3
Replies: 11
Views: 2731

Re: Removing pull-up resistors in GPIO pin 2 & 3

Doug, Can you please learn to use quoted stuff goes here[/quote ] tags when you quote earlier posters (or use that magic "Reply with quote" link)? Oooh I will try but given that I am apparently into 1960s PDP-8s, that HTML stuff you talk about is years into the future. >> used to be the way to go. S...
by oscarv
Sun Feb 01, 2015 10:44 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Removing pull-up resistors in GPIO pin 2 & 3
Replies: 11
Views: 2731

Re: Removing pull-up resistors in GPIO pin 2 & 3

Thanks for the quick answers! Doug, >> The parts are a £2 chip and three resistors. >> That's got to be better than risking destroying your £35 Raspberry Pi. But the I2C option is too slow - I believe - for this application. And anyway, I'd like to find a way to not destroy the Pi *and* not add part...
by oscarv
Sun Feb 01, 2015 9:26 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Removing pull-up resistors in GPIO pin 2 & 3
Replies: 11
Views: 2731

Re: Removing pull-up resistors in GPIO pin 2 & 3

Hi, >> If you need extra GPIOs it's probably easier to hang one (or up to eight) MCP23017 off the I2C bus. Each one gives you 16 extra GPIOs. It would be, but in this case it's not ideal: the application is a front panel for a simulated PDP-8. The on-board IO pins (ie, front panel LEDs) are updated ...
by oscarv
Sun Feb 01, 2015 6:40 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Removing pull-up resistors in GPIO pin 2 & 3
Replies: 11
Views: 2731

Removing pull-up resistors in GPIO pin 2 & 3

Hi, I really need to use GPIO pins 2 and 3 for a hardware project. These two pins have 1.8K pull-up resistors on the Pi Model B+, and I really need them without... Not many workarounds available as I used up all the pins. My questions: 1) Can I remove these two SMD resistors without affecting the Ra...

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