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Associate II
Aug 28, 2026 4:22 AM UTC
Solved

STM32L021D4P7 Which programmer to use for first time programming this IC

For first time programming this IC the reset pulse should go high to low for 4ms then it should comeback to high like a pulse which is programmer to use ?

STLINK-V3MINIE - will be suitable ?

Suggested for this requirement a programmer.

MPN : STM32L021D4P7

mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
Aug 28, 2026 9:32 AM UTC

STLINK-V3MINIE is a genuine product from ST. Please refer to this link:

https://www.st.com/en/development-tools/stlink-v3minie.html

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.

4 replies

mƎALLEm
ST Technical Moderator
Aug 28, 2026 7:47 AM UTC

Hello,

Any genuine STLINK is suitable for any STM32 MCU including STLINK-V3MINIE.

So yes STLINK-V3MINIE is suitable for STM32L021D4P7

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
Associate II
Aug 28, 2026 9:11 AM UTC

Can you kindly suggest genuine programmer for this part for first time empty chip programmer name ?

mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
Aug 28, 2026 9:32 AM UTC

STLINK-V3MINIE is a genuine product from ST. Please refer to this link:

https://www.st.com/en/development-tools/stlink-v3minie.html

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.