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RTOS/CC2640R2F: Call to icall_directAPI() falls into ICall_abort()

Part Number: CC2640R2F

Tool/software: TI-RTOS

Hello Folks,

TI Material: CC2640R2F

Stack: Simplelink SDK 1.40

We are attempting to run code on our proto1 board, but it seems to be failing. The code appears to run okay, but there is an error: sometimes a call to icall_directAPI() falls into an ICall_abort(). It looks like the call to ICall_waitMatch() in icall_directAPI() returns ICALL_ERRNO_TIMEOUT. From the stack trace when this happens, it looks like the call to icall_directAPI() came from gapRole_init() in the call to linkDB_NumConns(). Any idea why I might get this timeout? I believe other calls into icall_directAPI() succeed, but this one specifically seems to fail.

This seems to be working find on the TI launchpads, but not our prototype board.

Best,

Omid