Hello, On 3/11/07, Rod Whitby <[EMAIL PROTECTED]> wrote:
3) Once you execute the "neo1973 power-off" command, there is obviously no way to power it back up again remotely :-) So don't do that.
Acutally I was thinking about a way to do just that: from the datasheet of the PMU it looks like that there is an other way to power up the device using the EXTON signal. As it was confirmed by Werner on the neo1973-hardware list, it is currently connected to the VUSB line of the USB connector. The PMU will issue an interrupt to the S3C2410 if it detects a falling or rising edge on the VUSB line. This interrupt could be handled in uboot, and then wait for a specific start-up code on the USB. If it does not get it for a timeout, it would go back to standby.
The real question is: how to interrupt the VUSB line without unplugging the cable. If it can be done programmaticaly on the development PC's USB host controller: this would be the best. If it can only be done with a special cable then it is also fine (in my opinion). What do you think? Best Regards, Gergely
