Associate II

Question

Power management issue STM32L078RB

Forum|Forum|4 years ago
July 6, 2021
2 replies
1088 views

I join the schematic of my board to the question.

I am unable to connect my custom board, the error message on STM32CubeProgrammer is "Not STM32 target found" even it detects the supply voltage. The VDD required for the MCU is 1.8V and I connect all supply input pins to VDD. I also placed decoupling capacitors close to these pins. I have no idea why the MCU doesn't start.

Any help or suggestions to check is welcoming

HUB_VL53L1X_V3.pdf

STM32L0 series

This topic has been closed for replies.

Mohamed Aymen HZAMI

ST Employee

Hello @AAmor.2,

Maybe it's a pin connectivity or jumper issue ?

Can you please try to connect under reset and tell me if it is Ok?

Mohamed Aymen

Associate II

Thanks so much for your help.

Unfortunately, it seems that there are no connectivity or jumper issues... (Several boards tested !)

I tried to connect under reset but same error.

How can I see with the MCU pins' state that it is well powered ?

Mohamed Aymen HZAMI

ST Employee

Hello @AAmor.2,

Please try to connect the BOOT0 pin to Vdd then power off and on the board and see if it works or not !

Mohamed Aymen.