Search found 172 matches

by ijabbott
Tue Jun 02, 2020 7:47 pm
Forum: Usage tips, tricks and problem reports
Topic: DM42 arrived today! Stack layout?
Replies: 34
Views: 804

Re: DM42 arrived today! Stack layout?

I use Google Chrome on an x86-64 Debian Linux machine and haven't encountered any problems on the SM forum. Thanks @ijabbott, that's the info I was looking for. It seems the problem is isolated to the version of Chromium that's compiled for ARM processors (all Raspberry Pi's utilise ARM processors)...
by ijabbott
Tue Jun 02, 2020 8:02 am
Forum: Usage tips, tricks and problem reports
Topic: DM42 arrived today! Stack layout?
Replies: 34
Views: 804

Re: DM42 arrived today! Stack layout?

Talking of Linux. Does anybody else find that certain forum pages crash Chromium? I've had to install Firefox on all my Linux boxes simply so I can view the SM forum glitch free. I suspect that it's something to do with certain image embeds. It's no biggie as I have a workaround, but the behaviour ...
by ijabbott
Sun Apr 12, 2020 11:55 pm
Forum: Software Library
Topic: RTC Calibration program
Replies: 32
Views: 13265

Re: RTC Calibration program

Does anyone know at what point the ppm display under Setup — Settings gets updated, after changing the rtccalib.cfg file? I've just edited my file, changing from -21 to -22, but the display is still showing -21ppm. I've double-checked the file content (on a PC), turned the DM42 off/on a few times: ...
by ijabbott
Sat Apr 11, 2020 4:32 pm
Forum: OFFIMG library
Topic: The Manchester Bee
Replies: 1
Views: 536

The Manchester Bee

The worker bee has been an emblem of the city of Manchester in the UK for over 150 years, representing its industrial heritage.

This image is based on one registered by Manchester City Council.

manc_bee.bmp
The Manchester Bee
manc_bee.bmp (12.31 KiB) Viewed 536 times
by ijabbott
Sat Apr 11, 2020 2:10 pm
Forum: OFFIMG library
Topic: Dutch Lion
Replies: 24
Views: 1989

Re: Dutch Lion

Here's my attempt at the Welsh flag, based on the SVG in Wikimedia Commons. In Inkscape, I changed the colour of the grass to 25% grey and the colour of the dragron to 50% grey, and exported to a PNG of 400x240. In The Gimp, I converted to 1-bit black and white in pattern mode, touched up some stray...
by ijabbott
Sat Feb 01, 2020 8:37 pm
Forum: Hardware issues
Topic: BAT indicator stuck on
Replies: 19
Views: 3272

Re: BAT indicator stuck on

Also check the Vdd value on the DMCP Self Test Diagnostics page. I think it should be reasonably close to the battery potential in millivolts, except when powered by USB. In any case, it's more info for diagnosing the fault. I had noticed that Vdd was odd (1221) yesterday, so assumed it wasn't what...
by ijabbott
Sat Feb 01, 2020 11:42 am
Forum: Hardware issues
Topic: BAT indicator stuck on
Replies: 19
Views: 3272

Re: BAT indicator stuck on

Also check the Vdd value on the DMCP Self Test Diagnostics page. I think it should be reasonably close to the battery potential in millivolts, except when powered by USB. In any case, it's more info for diagnosing the fault.
by ijabbott
Fri Jan 03, 2020 5:12 pm
Forum: DM42
Topic: Firmw update issue on Windows 10
Replies: 5
Views: 2113

Re: Firmw update issue on Windows 10

Which firmware are you on at the moment? Is it recent enough to handle firmware updates using the FAT disk update method?
by ijabbott
Sat Nov 23, 2019 9:20 pm
Forum: Developer Forum
Topic: Building a .pgm on Windows
Replies: 6
Views: 3282

Re: Building a .pgm on Windows

It would require reimplementing the functionality of the shell scripts in C or something. An alternative may to build in an MSYS2 or Cygwin Bash shell environment.
by ijabbott
Sat Nov 09, 2019 1:11 pm
Forum: Hardware issues
Topic: USB-host (USB-OTG)
Replies: 5
Views: 2551

Re: USB-host (USB-OTG)

Vitasam wrote:
Sat Nov 09, 2019 12:29 pm
Yes, I was thinking about powered USB hub. So, basically it is the only matter of DM42 FW, HW is capable, right?
The STM32 chip supports OTG. I don't think the DM42 is wired up to support it. Amongst other things, it would need a high speed crystal (4-48 MHz).