In this tutorial, we’ll discuss how to debug your projects using the ST-Link debugger SWD and the Serial Wire Viewer (SWV) mode. How to open it and print data to the serial wire console within the IDE itself.

STSW-STM32103 - STM32 Serial Wire Viewer (SWV) and Embedded Trace Macrocell (ETM)capabilities. Examples and technical note., STSW-STM32103, STMicroelectronics.

Sep 1, 2025 · SWV is a debugging tool built into STM32 microcontrollers based on the ARM Cortex-M core. It allows real-time diagnostic information to be obtained. Using SWV…

SWV (Serial Wire Viewer) is a trace feature that can be used with many ARM Cortex-M3, M4 and higher processors (but not with Cortex-M0 and Cortex-M0+). SWV trace information can be sent out using a …

On STM32s, debugging is usually done using in-circuit debugging (using an ST-Link or similar device), and a serial console is often not needed. There are however multiple ways a serial console can be …

Aug 19, 2024 · What is SWV (Serial Wire VIEWER)? When you are using both the SWD and SWO pins, you are ready to enter Serial Wire Viewer tracing (SWV) debug mode. SWV provides real-time …

This feature will allow one to print values to a Serial Wire Viewer (SWV) via the SWO pin on the mictrontoller and the in-circuit programmer with no additional hardware, cables or drivers.

This article does not intend to cover all STM32CubeIDE Serial Wire Viewer (SWV) capabilities. It only provides some setup information for debugging the Cortex® -M of STM32MP15x lines in Production …

Nov 15, 2023 · Trace Viewer is a module that reads and parses SWO (Serial Wire Viewer) data using an ST-Link. You need to connect SWDIO, SWCLK, SWO, and GND to use it. This tool operates …

Mar 4, 2022 · Serial Wire Output (SWO) alongside Serial Wire Debug (SWD) allows for the CPU to emit real-time trace data. In particular, when used with an Instrumentation Trace Macrocell (ITM), it can …