STM8 MCUs

Discuss STM8 microcontrollers, including SWIM, USART configurations, RTC usage, ADC issues, and debugging.

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STM8L151K4 - Startup issues on external power

Hi,I'm having some issues getting code to actually run on the mcu. The power on reset doesn't appear to work, and I have to trigger an external reset via tying the NRST pin low to get the program to run. Cosmic + STVD was used, and STVP was used for ...

plebbbb by Associate
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Resolved! Old STM Microcontroller

Hello STM community.I have in my possesion an ST microcontroller with the following information printed on it:72F521AR5T99021 V5  MYS 99 and 3 other digits in the end which I am not able to figure them out. I understand that this must be a very old c...

JulioXJ by Associate
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Small Device C Compiler (SDCC) 4.4.0 Release Candidate 1

There is now a Release Candidate 1 for the 4.3.0 release of the Small Device C Compiler (SDCC), a free ISO C compiler targeting the STM8 and other 8-bit architectures.Source, documentation and binary packages for amd64 Windows, amd64 macOS and amd64 ...

STM8L052 flash read/write to activate function

Hello to all!I'm a bit new to STM8 programming. I'm my current project using the STM8L052 board, my plan is to use a input of how many times the user press a button to activate or deactive a function. For example, if the user press the button 5 times...

Botoni by Associate
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STM82103F programming issue

HI Guys, now I use STM8S103F2 series MCU develop, find there was some issue that can not solve, but i checked that bool types constant has no problem, so do you have same issue? thanks! 

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gavin3 by Associate II
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Resolved! Default clock speed for Nucleo-8s208RB

HelloWhat clock frequency and timing scheme is used for Nucleo-8S208RB default? In what documentation can I look this up?In the documentation (UM2364 User manual) for the board NUCLEO-8S208RB, this information is written (see picture), but looking at...

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