"Hard Fault" out of the blue

Post here to share useful tips and tricks, to ask questions about using your DM42 or to report software-related problems
Post Reply
mcc
Posts: 182
Joined: Fri Jun 23, 2017 3:10 am

"Hard Fault" out of the blue

Post by mcc » Sat Nov 10, 2018 9:29 am

Hi,

while programming my DM42 suddenly a
"Hard fault" was print onto the cleared screen, then "QSÜI checking" (something
like this...all this happens too fast)...and VOILA! RAM was cleared and the previous
status of the DM42 was loaded.

There was no USB connection.
There was no mechanical impact (beside me,
pressing the buttons while programming).
The battery was at 2.82V and the ambient temperature
was at normal room level.

I am ... buffled.

Cheers!
Meino
DM 42 - SN: 00373, Firmware v.:3.11. / 3.11. as compiled by SwissMicros

mcc
Posts: 182
Joined: Fri Jun 23, 2017 3:10 am

Re: "Hard Fault" out of the blue

Post by mcc » Wed Nov 21, 2018 3:43 pm

HI,

it hit me again...this time only "QSPI checking" was displayed, the RAM was cleared
and I had to recover the programs from flash.
As it happens I was playing with the short routine shown here:
viewtopic.php?f=17&t=2022&sid=95fb4bbbf ... 70ba#p9358

Cheers!
Meino
DM 42 - SN: 00373, Firmware v.:3.11. / 3.11. as compiled by SwissMicros

Thomas_ER
Posts: 64
Joined: Mon Jul 24, 2017 1:19 pm
Location: Germany

Re: "Hard Fault" out of the blue

Post by Thomas_ER » Thu Dec 06, 2018 7:18 am

Did you contact SwissMicros (Michael)?
[ HP48/49/50/42S/WP34/HP Prime/ DM42 (#00185+00318) ]

Thomas_ER
Posts: 64
Joined: Mon Jul 24, 2017 1:19 pm
Location: Germany

Re: "Hard Fault" out of the blue

Post by Thomas_ER » Sat Dec 15, 2018 12:01 pm

mcc wrote:
Wed Nov 21, 2018 3:43 pm
HI,

it hit me again...this time only "QSPI checking" was displayed, the RAM was cleared
and I had to recover the programs from flash.
As it happens I was playing with the short routine shown here:
viewtopic.php?f=17&t=2022&sid=95fb4bbbf ... 70ba#p9358

Cheers!
Meino
Hello Meino,
I don't see any answers from other users or swissmicros to your problem report.
Did you contact swissmicros additionally direct (via PM or other mail)?
Did you get any answers, or did you find some solutions for your self?
greetings, Thomas
[ HP48/49/50/42S/WP34/HP Prime/ DM42 (#00185+00318) ]

Post Reply