error: No Cortex-m SW device found

montagnanigiovanni · ‎2014-05-14

Posted on May 14, 2014 at 15:07

hi all, i was debugging happily my code on my new discovery F4 board when suddenly got this error

please, could someone help me to fix this?

may be that something burned inside my board?

thank you so much

Gio

ematters22 · ‎2015-06-04

Posted on June 04, 2015 at 11:08

Thank You very much :)

I've applied the changes as mentioned by you.

i) VDDA is supplied with +3.3V

ii) VCAP_1 pin is shorted with GND in the schematic (Pin 49). I've opened it.

It's working :)

Actually I've taken footprint of STM32F105VCT6 for STM32F429VIT6 for 100 pin LQFP in Eagle. Because STM32F429VIT6's footprint was not available.

And in STM32F105VCT6 there's no VCAP pin. Pin 19 is also VDD instead of VSSA as shown in schematic. In all, I should have checked the pins matching. I just checked around 20 pins and imported the footprint of STM32F105VCT6 for STM32F429VIT6.

By the way thank you one again! I got the necessity of VDDA and VCAP!

After troubleshooting I made this configuration:

-) Used just 3 pins SWCLK, SWDIO and GND.

-) Even if BOOT0 and BOOT1 pins' left unconnected, it works fine.

Thanks :)

Good Day :)