Ensuring Thread Safety of printf Functionality in FreeRTOS Environments

[Gretchev]

The function printf is not thread-safe in multitasking environments. While correct output can be expected when a single task utilizes printf, concurrent use by multiple tasks may result in garbled or overlapping text. Implementing additional synchronization measures is necessary to prevent such issues.

Val Gretchev

[Saket_Om]

Hello @Gretchev 

Thank you for highlighting this important point about the thread-safety of printf in multitasking environments. Your observation will be helpful to many users working with concurrent tasks.

If possible, could you please share more details about the synchronization measures you recommend or have implemented? A code snippet would be greatly appreciated by the community and could serve as a valuable reference for others facing similar challenges.

[Gretchev · Accepted solution]

Presented below is an in-depth analysis of the code implementing a thread-safe printf function.