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FreeRTOS Support ArchiveThe FreeRTOS support forum is used to obtain active support directly from Real Time Engineers Ltd. In return for using our top quality software and services for free, we request you play fair and do your bit to help others too! Sign up to receive notifications of new support topics then help where you can.
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ARM - Stack initializationPosted by Roy on March 12, 2006 When a stack is initialized for each task, I noticed that the R14 register is initialised with value '0xaaaaaaaa'. Has this any meaning or is it dummy value? The R14 is the link register, thats why I asked. RE: ARM - Stack initializationPosted by Richard on March 13, 2006 The 0xaaaaaaaa is a dummy value as you suggest. All the registers are filled with dummy values to assist debugging. As a task function should never exist the value loaded into the link register is never used and can take any value. Regards.
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