Search found 6 matches

by eggsylah
Mon Jan 08, 2018 6:08 am
Forum: STLink
Topic: New All-in-one STM32CubeProg
Replies: 5
Views: 321

Re: New All-in-one STM32CubeProg

Yes it could be faster but it is programming 308K! As usual with flash it is the erase time that slows things down. I tried loading the same data with J-Link and it took around 7s. The original micropython makefile uses a python script which took 22s. Using gdb and a BMP clone took almost 18s. So I ...
by eggsylah
Fri Jan 05, 2018 6:23 am
Forum: STLink
Topic: New All-in-one STM32CubeProg
Replies: 5
Views: 321

Re: New All-in-one STM32CubeProg

By coincidence I had downloaded this on Tuesday because I had hoped it included an SWO viewer that I could use under Linux -- sadly it doesn't appear to. It works fine with OpenJDK on my Fedora 27 laptop using OpenJDK. The only catch was needing to install openjfx -- otherwise you get cryptic errors...
by eggsylah
Sun Dec 31, 2017 3:05 pm
Forum: STM32F4 Boards
Topic: Can't get LED to turn on on STM32 nucleo board with STM32F446RE MCU
Replies: 4
Views: 170

Re: Can't get LED to turn on on STM32 nucleo board with STM32F446RE MCU

The R in STM32F446RE board name indicates it is a 64 pin part. If you check the STM32F446 documentation you will see that only PD2 is available on any output pin -- so your configuration of PD12 is in vain. I assume you are another victim of the ambiguous Arduino pin numbering and that you are using...
by eggsylah
Tue Dec 05, 2017 9:43 am
Forum: General discussion
Topic: Password storage on a BluePill
Replies: 35
Views: 675

Re: Password storage on a BluePill

Unfortunately, it seems to show that open source code will be inherently less secure as reference code can be run, and the power usage compared. Roger, I think you are being too pessimistic! That argument smacks too much of Security Through Obscurity to me. I believe some of the most secure impleme...
by eggsylah
Mon Oct 09, 2017 3:22 am
Forum: Linux
Topic: Arduino IDE + STM32 = "Failed to open serial device" (Linux)
Replies: 11
Views: 548

Re: Arduino IDE + STM32 = "Failed to open serial device"

I think the udev rules provided in the core are not ideal -- certainly not on a systemd based Linux system. On my Fedora and Arch systems I didn't have a plugdev group and didn't have full success when I added one. Essentially, I still needed to use sudo for the dfu-util command. The solution I have...
by eggsylah
Mon Oct 09, 2017 3:10 am
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Hello from Northern Virginia
Replies: 0
Views: 82

Hello from Northern Virginia

I've been lurking on the forum since April and have finally registered. I'm another one of those old fogeys that seem to be here: originally cutting my teeth on the National Semiconductor SC/MP II micro -- not even a jump subroutine opcode -- through the 6502 (PET/BBC Micro) and various TI/Motorola ...