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by domble
Thu Jul 16, 2015 11:17 am
Forum: Advanced users
Topic: Linux kernel is now 4.0
Replies: 182
Views: 97191

Re: Linux kernel is now 4.0

@PhilE

Thankyou very much for that; I need an idiots guide to device trees! That does indeed now set the UART clock correctly, so that I can use 1Mbit data again.

Much appreciated; and humble apologies for hijacking this thread.

Dominic.
by domble
Wed Jul 15, 2015 4:57 pm
Forum: Advanced users
Topic: Linux kernel is now 4.0
Replies: 182
Views: 97191

Re: Linux kernel is now 4.0

Ooh, of course I didn't try that. But pi ~ $ sudo stty -F /dev/ttyAMA0 1000000 stty: /dev/ttyAMA0: unable to perform all requested operations whereas 115200 was ok. And 1000000 is fine on 3.18.11+. And on 3.18.11 stty at least only seems to accept the 'standard' baud rates anyway. pi ~ $ sudo stty -...
by domble
Wed Jul 15, 2015 9:28 am
Forum: Advanced users
Topic: Linux kernel is now 4.0
Replies: 182
Views: 97191

Re: Linux kernel is now 4.0

Just tried a rpi-update on a system; updated to kernel 4.0, all fine except seems that I couldn't set /dev/ttyAMA0 rate to higher than 115200bps afterwards. Previously working at 1Mbit (using the excellent libmodbus - or excellent if your app needs modbus anyway!). Using sudo stty -F /dev/ttyAMA0 10...
by domble
Tue May 05, 2015 9:32 am
Forum: Networking and servers
Topic: Remote IP configuration (without DHCP)
Replies: 5
Views: 3086

Re: Remote IP configuration (without DHCP)

Ah. Hmm. Better tell one of the biggest and most successful companies in the world that then. The IP network in question collects data from a huge number of individual sensors. Each one is seperately serial numbered, named, calibrated, and tracked. Handling a few hundred or thousand IP addess alloca...
by domble
Fri May 01, 2015 4:18 pm
Forum: Networking and servers
Topic: Remote IP configuration (without DHCP)
Replies: 5
Views: 3086

Re: Remote IP configuration (without DHCP)

Thanks, Let's say it's an end user's network... which uses only fixed IP addresses. No DHCP server and no access to any routers. My code is running in the pi. I also have a program running on the users's PC, monitoring the pi over an ethernet IP connection (for other reasons, actually Modbus/TCP - l...
by domble
Fri May 01, 2015 3:06 pm
Forum: Networking and servers
Topic: Remote IP configuration (without DHCP)
Replies: 5
Views: 3086

Remote IP configuration (without DHCP)

Is there a standard way to handle setting a fixed IP address on a headless (pi based) device? I've considered a small display and buttons, but the hardware is now finalised (it's an industrial product). Mostly DHCP would be fine, but in some cases a fixed IP address is needed. Obviously one can ssh ...
by domble
Tue May 22, 2012 2:30 pm
Forum: General discussion
Topic: Any word from Farnell?
Replies: 122
Views: 18122

Re: Any word from Farnell?

My Farnell order status (ordered 29/02/2012 14:03) was showing as 'Back Order'. This morning it showed 'Processing'. Now it says, wait for it...

'Cancelled'.

I'm a little upset.

Dominic.
by domble
Tue May 08, 2012 8:55 am
Forum: For sale
Topic: Master Plug Dual USB Power supply 70% off Sainsburys
Replies: 46
Views: 23130

Re: Master Plug Dual USB Power supply 70% off Sainsburys

<t>framil said: <br/> <br/> <br/> I bought a single USB socket Masterplug model USBPLGW from Sainsburys last week, £2.99, reduced from £3.99.  Great for charging most devices, but not for powering a Raspberry Pi.  Label states: 5V at 1A.  I tested it under load:<br/> <br/> No load (open circuit): vo...

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