STM32G030K6T6 is not programming!

[Aatif Shaikh1]

Hello,

I'm working on a small scale project. In my earlier design, I've used the STM32F100x series. Now as the STM introduced a new set of controllers, the STM32G series ( which is less in cost and much higher efficiency than STM32F series), I've migrated to STM32G030K6T6.

AT present in my custom-made board, I've only placed a micro-controller along with some essential circuitry component and trying to program the micro-controller, but unfortunately, the micro-controller is not getting programmed. Currently, I'm using the ST-Link V2. I even tried to program with the ST-link of the NUCLEO-G070RB board, but the results are still the same.

Error Message :
 
14:09:32: Can not connect to target!
Please select "Connect Under Reset" mode from Target->Settings menu and try again. 
If you're trying to connect to a low-frequency application, please select a lower SWD Frequency mode from Target->Settings menu.
14:09:34: No target connected.

[Tesla DeLorean]

Means the chip is not running or you've got something else wired up wrong.

Check level of NRST.

Check VDDA.

For external ST-LINK make sure pin 1 or 2 has voltage applied, for Nucleo that local target is disconnected.​

[Aatif Shaikh1]

Hello, thanks for the tip, but after changing some ST-link Configuration, I'm successfully able to do the programming of my board now. Under "Reset Mode" I've selected "Software System Reset".

[wenbang zheng]

Hi Aatif Shaikh 

​

i think NRST PIN need 10k to VCC

STM32 is low level reset，you Schematic NRST connect a CAP to gnd, so NRST PIN is alse LOW, so mcu is also IN RESET

see my Schematic。my board work well

[Piranha]

No, you are wrong. The 100 nF capacitor is the only thing required and an additional pull-up resistor only makes things worse. Stop copying the Chinese copy-paste "engineers" and read the datasheet and AN5096.

[wenbang zheng]

:), i do not think so, tie NRST pin to vcc so it is HIGH level and will not reset in nomal