About Lubos KOUDELKA

Lubos KOUDELKA · 2021-07-08

Hello,when using Linux host for testing this example, CDC interface is not detected by the host. Reason is sensitivity on Configuration descriptor content generated by STM32CubeMX, propagated into ux_device_descriptors.c. For now you fix this file ma...

Lubos KOUDELKA · 2021-05-18

How to implement USB Communication Device Class (CDC)1. Communication of USB CDC in device mode For handling communication of USB CDC in device mode using legacy STM32 USB libraries are important 3 functions located in file usbd_cdc_if.c: CDC_Receiv...

Lubos KOUDELKA · 2021-05-18

How to Set USB CDC Line Coding?1. What is Line coding? Line coding is used to transfer parameters of UART interface, which is emulated using USB CDC - Virtual COM port. In STM32 legacy USB library is line coding handled in file usbd_cdc_if.c, functio...

Lubos KOUDELKA · 2024-09-17

Hello,I'm sorry, your edits were not giving me any change notification in this thread.Still instead of trying to reset CFGBSY flag, I would rather focus on finishing the write, it shall reset busy flag. Can you please ensure your data are padded to 6...

Lubos KOUDELKA · 2024-09-02

Hi,please see few slides with installation guidance. Please note I was testing with RPI zero 2W, for other models setting of Box64 may differ(as described on Box64 github page). Best regards,Lubos

Lubos KOUDELKA · 2024-08-29

In picture firmware_flash_reg_after_flash_lock.png I don't see FLASH_SR register to compare, suspicious from other pictures is set CFGBSY bit from FLASH_SR register. Are all operation finished prior to lock? Only double word (64 bits) can be programm...

Lubos KOUDELKA · 2024-08-28

Thank you for clarification. Do you have any screens from debug? Can you compare register content while executing your bootloader code and when accessing flash in your application? There need to be some difference visible in debug.

Lubos KOUDELKA · 2024-08-28

Hello,Do I understand correctly, that you're just running FLASH_EraseProgram example without any stack installed? In such case is not expected CPU2 is running and cannot impact CPU1 program execution. Or are you running the program after some bootloa...

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