Search found 224 matches

by sheepdoll
Mon Apr 17, 2017 8:02 pm
Forum: Off topic
Topic: Unix on an SMT32F103... maybe
Replies: 6
Views: 133

Re: Unix on an SMT32F103... maybe

With an MPU and 407 you can run for example a max 128kB large program (text+data+stack) while the 64kB could be used for kernel. ... I see you were quite active on the RetroBSD forums. There is a lot to digest between these projects. The AVR/ARM emulator is a hoot. Somewhere I have a project for a ...
by sheepdoll
Mon Apr 17, 2017 6:40 pm
Forum: Off topic
Topic: Unix on an SMT32F103... maybe
Replies: 6
Views: 133

Re: Unix on an SMT32F103... maybe

I have been playing a bit with R-pis. Looking at my F7 Discovery with the large touch screen on it wanting a shell script. This thread prompted me to waste time look at some of the wiki pages on the history of Posix and the so called Unix wars. Back when I was in college, in the early 1980s there wa...
by sheepdoll
Mon Apr 17, 2017 5:58 pm
Forum: Generic STM32F103
Topic: Generic STM32F103 + Eclipse
Replies: 9
Views: 150

Re: Generic STM32F103 + Eclipse

Could you say more about that? How do someone enable or disable the swd pins ? I found the thread where I had the SWD issue. Where I was attempting to get USB CDC to work http://stm32duino.com/viewtopic.php?f=48&t=1422&hilit=swd There is also a number of threads on the blue pill and swd. Us...
by sheepdoll
Sun Apr 16, 2017 11:32 pm
Forum: Generic STM32F103
Topic: Generic STM32F103 + Eclipse
Replies: 9
Views: 150

Re: Generic STM32F103 + Eclipse

I think the OP is looking for blue pill specific stuff. I did not answer as I use Nucleo and Discovery boards. It is best to install the minimal eclipse, then add the CDT, GDB and other support. Using the package installers brings over a lot of extra stuff. Eclipse has a lot of options, there are at...
by sheepdoll
Thu Apr 13, 2017 9:50 pm
Forum: STM Core
Topic: First release of STM32F4 core
Replies: 51
Views: 1098

Re: First release of STM32F4 core

Frederic, I've been looking through your variant files for MCU Port to Arduino pin mappings while working on a "Black STM32F407VET6" variant - as we've described on the Wiki http://wiki.stm32duino.com/index.php?title=STM32F407 . The Nucleo board is fairly straightforward with its Uno V3 s...
by sheepdoll
Thu Apr 13, 2017 9:17 pm
Forum: STM32F4 Boards
Topic: Improving F4 core (libmaple based)
Replies: 121
Views: 1262

Re: Improving F4 core (libmaple based)

Possibly. I think trying to make a single core work on the F407, the F401 and the F429 amounts to trying to make the F1 core work on the F103, F105, and F107. As far as I know, no one has even tried other MCUs in the F1 series. Yes. I think that explains the issue, and clarifies the point I was mak...
by sheepdoll
Thu Apr 13, 2017 8:26 pm
Forum: STM32F4 Boards
Topic: Improving F4 core (libmaple based)
Replies: 121
Views: 1262

Re: Improving F4 core (libmaple based)

I got LED blinking 2 or so years back... Where I got bogged down was USB CDC and eventually MIDI. The other bog spot is the Pin mapping/Pin naming. That is where I started writing scripts, and it looks like ST has opted for that approach. When I attempted to merge the non HAL lib maple stuff, there ...
by sheepdoll
Sat Apr 08, 2017 5:29 pm
Forum: STM Core
Topic: First release of STM32F4 core
Replies: 51
Views: 1098

Re: First release of STM32F4 core

... MIDIUSB is one of the Arduino libraries (https://github.com/arduino-libraries/MIDIUSB), and it requires some kind of USB support, not sure how much (it only works on Arduinos with full USB support like the Atmega32u4 based ones, but this board should be totally capable of doing that as well). T...
by sheepdoll
Sun Mar 05, 2017 9:26 pm
Forum: STLink
Topic: STM32 + Gotek floppy emulator
Replies: 29
Views: 523

Re: STM32 + Gotek floppy emulator

I use a program called expressPCB to do layouts. The user files are encrypted. A few years back this encryption was hacked. The issue was that every time the document was saved it generated a new key that was stored in the plain text part of the code. Since only the key changes when the file was sav...
by sheepdoll
Sat Mar 04, 2017 8:18 pm
Forum: STLink
Topic: STM32 + Gotek floppy emulator
Replies: 29
Views: 523

Re: STM32 + Gotek floppy emulator

I am finding this topic of interest too as I have reverse engineered a number of abandon ware project where the originators are dead or of advance age. Interesting enough I just posted some code this week to git from a floppy disk based MIDI file player. That project I did not reverse engineer. I Us...

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