SwissMicros Calculator Forum

Here is a simple 'Hello World!' demo application
https://github.com/swissmicros/DMCP_SDK

A simple RPN demo calculator application will follow.

If your FAT partition is corrupted, format it from the System menu. Activate the USB disk and copy the file DM42-3.7.1.pgm https://www.swissmicros.com/dm42/firmware/DM42-3.7.1.pgm to the root folder of the DM42 FAT partition In the DMCP Menu choose to load the program Run the program Only if it say...

What I meant by pressing the reset and pgm button is the sequence that you referenced. It does not enter bootloader mode. In fact the LCD screen has "snow". So is there anyway I can recover from this? Snow sounds like a broken flex ribbon to the LCD. I'm quite sure it does enter the bootl...

Unless there is a defect, it's almost impossible to brick it.
Press and hold PGM, then press and release RESET, release PGM.
Then use the dm_tool to flash a firmware.

... but I think this approach does not fulfill the GPL license ... You must be a expert coming to this well founded explanation! Well, that's all on my part. Bye. Adios Sorry, but I do not want to be in this forum any more. No problem, please leave. EDIT: the last sentence of emece67 was his signat...

Vitasam wrote: ↑

Mon Jun 04, 2018 11:23 pm

I have created pull-request #1

Changes requested before pull

Michael wrote: ↑

Mon Jun 04, 2018 9:12 pm

Many different licenses were used for the DM42 and some of the code can not be open sourced, not our decision.

Please see updated License Statement here https://www.swissmicros.com/License_Statement.php

Studying the code I see that the source code for 100+ functions is not included. Instead such functions are called via hard-coded pointers pointing to addresses inside what seems to be a closed source library loaded at a fixed address in memory. Can't see a way how this can be compatible with the s...

... I know, that the STM32F103 is nearly unbrickable as long as one dont plan exactly how to brick the chip. This is due to the bootloader being in the ROM and therefore not alterable. How is the situation when it comes to the DM42? That's the same with the STM32L476. On the PCB there are two butto...

rprosperi wrote: ↑

Mon Jun 04, 2018 12:07 am

Question: Is Free42 v 3.7.1 functionally identical to v3.5, and if not will there be some Release Notes added to the Update Announcements Forum?

Yes, the functionality is the same.
An official announcement comes later this week.