stlink | Open source STM32 MCU programming toolset

I have an STM32F303CBT6 microcontroller. On the ST site, the volume of the flush is 128 kB.

In reference manual flash up 256 kB.

In this case, register "Flash memory size data register" contains the value 128 [kB].

There is also 128 kb in the stlink utility.

But in the cleaning window, the page costs 128 pages of 2 kB. This amounts to 256 KB.

I didn't get it. What is the size of the flash?

I'm having a hard time getting openocd to start. I attached an STM32F3 Discovery board. When I run openocd -f interface/stlink.cfg -f target/stm32f3x.cfg I get the following error:

I am debugging board STM32f4 Discovery on Ubuntu 20.04 with openocd and arm-none-eabi-none. Things work well until yesterday. Today, when I connect the gdb to localhost:4444, following assertion happened and ocd quit:

I am trying to control a stepper motor, using a A4988 driver along with a Nucleo 144 board with an STM32F767ZI on it.

The A4988 driver expects a single rise in voltage to HIGH in order to step the motor.

Having made some voltage readings using a multimeter, I have found that during and even while the program is paused, there is a steady voltage of around 1.2V being output by the pin.

I also added some lines to toggle an LED (built onto the board) whenever the output to the A4988 driver is toggled between HIGH and LOW, which works fine.

Here is the code:

main.c

I followed the adacore tutorial on displaying scrolling text (https://blog.adacore.com/ada-for-microbit-part-1-getting-started) but can't get it working on my microbit.

Maybe my microbit is a more recent version that is not yet supported? The reason I suspect this is that my board id (9904) was not supported the first time I tried to flash to the board. I used the fix described here: Unable to get the Ada scrolling text demo working on the microbit on GNAT 2019 community edition and added the following line in board_ids.py:

How can the STM32F103C8 be configured to run with internal RC oscillator / HSI & PLL, i.e. without external crystal oscillator (as present on the "blue pill" board) with the Arduino framework in PlatformIO?

• https://docs.platformio.org/en/latest/boards/ststm32/bluepill_f103c8.html
• https://docs.platformio.org/en/latest/boards/ststm32/genericSTM32F103C8.html
• https://docs.platformio.org/en/latest/frameworks/arduino.html

platformio.ini:

I am trying to make an extremely minimal stm32f215 firmware to teach myself its boot-up intricacies. As it is now I have this dump which, to my knowledge, should write the stack address to r0 and loop forever:

I've successfully installed pyocd and libusb using powershell core and python 3.8 on windows 10, but when I use python -m pyocd list command, it throws this error:

I'm new to embedded linux and I am trying to boot linux on stm32h7 with only internal flash and ram.

FLASH SIZE = 2MByte

RAM SIZE = 1MByte

I have downloaded the mainline linux kernel and I configured the kernel with stm32_def config and then customized it and I removed the unnecessary drivers from it. and I configured it to boot from flash (XIP).

I have a custom board and it does not have any external ram or flash but it is similar to stm32h743i_discovery board. so, I'm using the stm32h743i_disco device tree.

my output xipImage size is about 1.4MByte and I wrote a boot loader for it.

I merged the binaries together like this:

loader at offset: 0x08000000

device tree blob (dtb) at offset: 0x08000F00

xipImage at offset: 0x08008000

my loader program: