Search found 9 matches

by victor_pv
Thu Jan 23, 2020 3:29 pm
Forum: STM32 SD-Bootloader
Topic: Just another bootloader
Replies: 3
Views: 2282

Re: Just another bootloader

Nice, thanks for sharing. How much flash space does it take?
by victor_pv
Tue Jan 07, 2020 11:02 pm
Forum: General discussion
Topic: I2C synchronous/blocking issue
Replies: 5
Views: 1081

Re: I2C synchronous/blocking issue

i2c and SPI peripherals both can be used with the DMA controller, so they work independently of the CPU.
You could use DMA with one and the CPU (software) with the other, or both with DMA.
by victor_pv
Sun Dec 22, 2019 4:34 am
Forum: General discussion
Topic: [Q] How to know how much RAM memory microcontroller have at compile time?
Replies: 6
Views: 1642

Re: [Q] How to know how much RAM memory microcontroller have at compile time?

You best bet is probably to use the board name. You can look in boards.txt for property build.board of the boards you plan to use. From platform.txt, the board name will be used to create a macro name: -DARDUINO_{build.board} That means, for example, for board DISCO_F030R8, there property build.boar...
by victor_pv
Sat Dec 21, 2019 5:26 am
Forum: General discussion
Topic: Weird HardwareTimer behavior
Replies: 8
Views: 1933

Re: Weird HardwareTimer behavior

I haven't tested your code, so this is just a theory, but you if you are trying to fire interrupts at let's say 1Mhz, then the MCU has to be able, in 72 cycles (so 72 instructions), to: Read the interrupt vector Jump to that address That addres most likely is part of the core, not your ISR, so it ma...
by victor_pv
Thu Dec 19, 2019 3:46 pm
Forum: STM32 HID bootloader
Topic: Link to this bootloader?
Replies: 4
Views: 3059

Link to this bootloader?

Does anyone have the most current link for this HID bootloader?
Is it this one?
https://github.com/Serasidis/STM32_HID_Bootloader

Thanks!
by victor_pv
Thu Dec 19, 2019 3:44 pm
Forum: Custom design boards
Topic: Bluepill F4 board, anyone still working on it?
Replies: 83
Views: 18650

Re: Bluepill F4 board, anyone still working on it?

I remember years ago when Ray posted about the $4 maple boards on aliexpress. Now the F4 board are that price. The only problem I see with those, is that they have different pinouts vs the original bluepill and maple mini. The bluepillF4 designed in the old forum was pin compatible for the most part...
by victor_pv
Wed Dec 18, 2019 11:24 pm
Forum: STM boards (Discovery, Eval, Nucleo, ...)
Topic: Nucleo-L452RE IDE
Replies: 4
Views: 1794

Re: Nucleo-L452RE IDE

by victor_pv
Wed Dec 18, 2019 7:43 pm
Forum: Custom design boards
Topic: Bluepill F4 board, anyone still working on it?
Replies: 83
Views: 18650

Bluepill F4 board, anyone still working on it?

I built a couple, with F1, F4 and F7 MCUs.
Anyone still using and improving on them?
I have seen the F4 mini boards in aliexpress, but they each seem to have different pinouts.
by victor_pv
Wed Dec 18, 2019 7:37 pm
Forum: Announcements
Topic: Welcome back stm32duino.com
Replies: 29
Views: 11869

Re: Welcome back stm32duino.com

Thanks Fedreric!
Glad to see the forum back online.

BTW I had a change to attend to an STM seminar in MEMS here is Austin recently, was great, love my little sensortile.

Go to advanced search