I have designed a custom stm32f407vgt6 board with on board stlink, similar to stm32discovery board. But the st-link after assembling, the st link is not being detected by any application. Please let me know how to solve the issue.

I have tested all 3v connections going into the st-link chip, but the bi-color led is not blinking when it is connected via USB. Please help.

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Guru

Has it got firmware on it, and is it running?

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Associate

No after assembling the pcb, I am unable to make any connection so far.

Guru

So you'll either need to use the System Loader, or another JTAG/SWD pod to get the firmware onto the STM32F1 chip.

The connectivity modes of the System Loader are described in app note AN2606

Then you'd need an actual firmware.

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Associate

Thank you so much for your help.

So, I need to put a program to the STM32F103CBT6TR chip to act as an st-link for my stm32f4vgt6 chip, is that correct?

If so, then I need to generate a set of SWDIO, SWCLK, GND, and 3.3V to feed into STM32F103CBT6TR chip via another already programmed st-link v2.

Did I understand correctly?

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