From: Tan L. <ta...@ya...> - 2006-05-01 02:20:16
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Hi, everyone Does anyone have the problem of the gumstix rebooting? My config is robostix, tweener, gumstix, cfs(netgear wifi card). Everytime I turn the wifi card on(with its light flashing), then sometime it reboot right away, or within 5 to 7 minutes. The point is it is always reboot. We think that the problem is there might not be enough power for every card on there. Anyone with a way to solve this, please help us. Thank you. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com |
From: Dave H. <dhy...@gm...> - 2006-05-01 03:33:58
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> My config is robostix, tweener, gumstix, cfs(netgear > wifi card). > > Everytime I turn the wifi card on(with its light > flashing), then sometime it reboot right away, or > within 5 to 7 minutes. The point is it is always > reboot. I've heard reports of this happening with others. It seems to stem fro mthe fact that some WiFi cards can draw close to 500mA. The voltage regulator on the robostix only delivers 500mA for the gumstix and stuff connected thru the 92 ping connector. The voltage regulator goes into thermal shutdown, which causes the power to the gumstix to be interrupted which shuts of the WiFi card and then the voltage regulator recovers. The way that I've seen others get around this is to power the cfstix with 5v in addition to providing around 6v-9v to the robostix. Then you'll get 500 mA from the robostix voltage regulator in addition to whatever you can provide through the cfstix power connector. It's important for the power on the cfstix to be at 5v (so it matches the 5v from the robostix). -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |