Search found 167 matches

by ijabbott
Sat Feb 01, 2020 8:37 pm
Forum: Hardware issues
Topic: BAT indicator stuck on
Replies: 19
Views: 934

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: 934

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: 943

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: 1477

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: 1247

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).
by ijabbott
Sat Nov 09, 2019 1:34 am
Forum: Software Library
Topic: Pricing calculations
Replies: 11
Views: 2159

Re: Pricing calculations

keithdalby wrote:
Fri Nov 08, 2019 6:50 pm
DA74254 wrote:
Thu Nov 07, 2019 7:41 pm
dildo fuel cars.
Well that's a fuel I've not heard before
Presumably, the batteries run out just before you reach your destination.
by ijabbott
Wed Nov 06, 2019 11:15 pm
Forum: Hardware issues
Topic: USB-host (USB-OTG)
Replies: 5
Views: 1247

Re: USB-host (USB-OTG)

Just found this external module for TI calculators . As far as I know stm32 of DM42 can support USB-OTG. In theory, is it possible to create, e.g. USB-UART profile or something similar? I don't think the DM42 would be capable of powering any device connected to the USB port even if the chip can sup...
by ijabbott
Sun Oct 13, 2019 12:38 pm
Forum: DM42
Topic: When will we get an up to date DM42?
Replies: 9
Views: 3619

Re: When will we get an up to date DM42?

I suspect they're busy with DM41X stuff at the moment.
by ijabbott
Wed Oct 02, 2019 8:31 pm
Forum: Discuss!
Topic: DM41X Alternative key layout
Replies: 44
Views: 9621

Re: DM41X Alternative key layout

Boub65 wrote:
Wed Oct 02, 2019 7:39 pm
But, DM41X will be full Swissmicros property because they own 100% of the IP. So only David and Michael will be able to provide different layouts and especially a DM41X close to DM42... it's up to them to decide...
They don't own 100% of the IP. A lot of it is owned by HP. :)
by ijabbott
Mon Sep 30, 2019 7:51 pm
Forum: Discuss!
Topic: 43S Alternative key layout --> WP43C
Replies: 959
Views: 65864

Re: 43S Alternative key layout --> WP43C

Question for you stat guys: I get that E- is not equivalent to E- a negative value, as we should not only expect to reduce the sum but also decrement the count of elements. In this respect it sort of reminds of removing one element from a stack. However, I have not seen a calculator complaining abo...