µC/OS-III: OSFlag Pre-Set on Power-On Causes Rx_Task to Run Unexpectedly

[Narendra019]

Hi Community,

I’m using OSFlag in µC/OS-III for signaling between an ISR and a task (Rx_Task).
Ideally, Rx_Task should remain blocked until the ISR sets the corresponding flag.
However, I’ve observed the following behavior:

1. Unexpected Task Execution During Power-On:
	○ During the every Power-On, Rx_Task starts executing even before the ISR triggers.
	○ It appears that the OSFlag is already set at startup, causing the task to become ready immediately.
	○ This issue occurs only once during Power-On. After that, everything works as expected — Rx_Task executes only when the ISR signals the flag.
	○ This leads me to suspect that the flag group memory may not be initialized or cleared properly during system startup.

Has anyone else faced a similar issue?
Any suggestions or best practices to ensure OSFlags are properly cleared or initialized before system start would be very helpful.

Thanks

[Narendra019]

Issue is reolved now .kindly look at below thread
#51