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Sleep mode within a complex kernel like Linux is not a simple matter. Linux does have some sleep mode code, but last time I talked to Technologic about the problem, they are not going to support a low power mode. I remember setting up lower power modes on another RTOS, and it was a project in its own rite. From: Jim Jackson <> To: Sent: Tuesday, August 2, 2011 12:31 PM Subject: Re: [ts-7000] Sleep mode on ts-7200 On Tue, 2 Aug 2011, Marcos wrote: > I need to put my 7200 to sleep but not sure how to do it. I am aware > about not irq can be used in userspace with this board so need to poll a > digital int in order to wake it up. Timing is not critical in my app. As far as I know the ts7200 doesn't have a "sleep" mode. You can control various things to reduce the power consumption, turning the ethernet phy off, reducing the various clock frequencies, etc but that only gives a low compute power, lower electrical power state. If I remember correct I managed to get power down to about 0.75 watts, with the ethernet phy powered off and running with a CPU clock of about 40MHz. I suspect when you say "sleep mode" you mean an even lower power state. __._,_.___
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