Arduino for STM32

hello again, i fixed my codes and ran it. But I'm having a problem. When I install a program by activating USB CDC ,program running but I cannot connect to ST-LINK UTILITY. I can only connect after boot mode. But when the USB CDC is off and after installing the program I am connecting to ST-LINK UTI...

My variant documents.

Stm32Duino won't release a version that supports stm32f070?

yes, the first thing I tried was to create the blink codes on STM32Cubeide and upload them to my board. He worked there and had no clock issues. But it did not work on my own board that I created with the codes above. I did not fully understand where the problem was.

Here is the code I added in my board.txt. (in 3d printer boards) (My board name "FIREPLACE") # FIREPLACE board 3dprinter.menu.pnum.FIREPLACE=Fireplace V0.1 3dprinter.menu.pnum.FIREPLACE.upload.maximum_size=122880 3dprinter.menu.pnum.FIREPLACE.upload.maximum_data_size=15168 3dprinter.menu.p...

Thank you for your answer. I changed the Malyan M200 V2 and Malyan M300 settings in board.txt. I made the settings to write to 0x8000000, but again Blink did not work. I created my own variant. I created and saved the linkerscript and system clock settings with the STM32CUBE IDE. Unfortunately my ow...

Hi, I want to use stm32f070 for a project. I installed the blink code on my board by selecting malyan m200 v2 and malyan m300 from 3d printer cards, but it did not work. The reason is that malyan works with the bootloader and installs the program to 0x008002000. Is there a solution to this?