NUCLEO-F746ZG Nucleo board's (STM32F103CBT6 controller used for ST-Link) ST-link USB bootloader and programming file (.out file)

[S.Kamath]

Hi,

STM32F103CBT6 controller is used as "ST_link controller" in NUCLEO-F746ZG Nucleo board.

I'm looking for NUCLEO-F746ZG board's ST-link USB bootloader and programming file (.out file) for STM32F103CBT6 controller. Can someone send me link/path for ST-link's (STM32F103CBT6 controller) USB bootloader and programming file (.out file)

I'm making ST-link board design using STM32F103CBT6 controller. So, I'm looking for above mentioned file

[Peter BENSCH]

No programming file is available and you are not authorized to do so. Please read the Open Platform license agreement.

Maybe the ready to buy ST-LINK/V2 is an option for you?

Regards

/Peter

[S.Kamath]

Thanks Peter,

I thought Nucleo board's ST-link design is open source code.

In Nucleo, Both ST-link and "UART to USB" integrated in same/single USB connector. If I use ST-LINK/V2 as external programmer device, then how to combine "UART to USB" and external ST-link programming cable's USB connectivity on the same USB connector interface?

[Peter BENSCH]

Hi, @S.Kamath​,

It's not really difficult to combine multiple data streams on one USB port, as this is what USB was designed for. The STM32F103 at the ST-LINK/V2 just merges the SWD stream and the UART stream.

BTW: thanks to the more powerful STM32F7, the ST-LINK/V3 merges even more data into the data stream: SPI, I2C, CAN or GPIOs.

Regards

/Peter

[S.Kamath]

Thanks for Peter for prompt response.

If I use ST-LINK/V2 as external programmer device, then how to combine "UART to USB" and external ST-link programming cable's USB connectivity on the same USB connector interface?

I do agree that we can manage entire solution by using STM32F103. But, this solution requires firmware development. I'm looking for solution without using firmware development

[Peter BENSCH]

If both channels really need to be transmitted to the host, ST-LINK/V2-1 might be a good choice. It is part of almost all NUCLEO-64 and can be broken from the target board. It offers RXD/TXD for the UART channel and SWD for the debug channel. You will find an overview of the available NUCLEO here.

The only downside: it's just a board and comes without a case. There are also some guys who use this exact approach, e.g.

https://jeelabs.org/book/1547a/

Does it answer your question?

/Peter

[S.Kamath]

Thanks for suggestions..!! I was thinking same approach before I ask my previous questions :)