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Bonnie · ‎2024-03-06

STea · ‎2024-03-06

You can refer to the Getting started with STM32L0xx hardware development in section in section 6-Reference design

where you can find some useful details about the implementation of the STM32L0 series MCUs.

You can also inspire from NUCLEO-L073RZ in this link .

BR

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Tesla DeLorean · ‎2024-03-06

Start by reviewing the Data Sheet, paying special attention to power, capacitors, BOOTx and NRST. Make sure to escape a means of programming/debugging via SWDIO/SWCLK, and understand the system loader via AN2606

Most of ST's boards have schematics, and these can be found under the "CAD Resources" tab on the respective product pages.

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Andrew Neil · ‎2024-03-06

@Bonnie wrote:
I'm new to designing with STM32 chips

Are you familiar with designing for other microcontrollers? Much of it is common...

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Andrew Neil · ‎2024-03-06

@Tesla DeLorean wrote:
Make sure to escape a means of programming/debugging via SWDIO/SWCLK

Absolutely!

@Bonnie Best to also include NRST - that can get you out of some holes where the debugger can't access the Target...

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.