Hybernation

Question

Hi All 
 I am trying to put the blackfin into hybernation (or deep power down) and want to wake up from an external GPIO event. 
 Is that possible. Are there any engineering notes about this? 
 Best regards Henrik

NandiniC · Accepted Answer

Hi Henrik, 
 You can also try this using debug mode. In deep sleep mode, once the processor wakes up, it resumes execution. 
 In hibernate mode, there is no power dissipation on the VDD_INT power domain, and the processor undergoes a reset when it wakes up from hibernation. 
 There are two ways to verify if the processor is in hibernate mode: 
 1.Measure the VDD_INT voltage &mdash; it will be zero if the processor is in hibernate mode. or 2.Load a LED blink program and observe if the processor boots and runs it correctly after waking up from hibernate mode. 
 Regards, Nandini C)

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Hybernation

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