On Wed, 23 Aug 2000, Nicolas Welte wrote: > I got some more info from him (but still not if the blinking is a special > pattern or not): There are three LEDs, two drive activity LEDs (upper and > lower drive) and the red/green power LED, so we have the same situation as > with the 8250. The power LED and the lower drive LED blink synchronously, > about once per second. I don't know if it is a symmetric blinking or not, > but I don't think it is a count followed by a pause. The upper drive LED is > always on most of the time, but sometimes it goes off after powering on the > drive. Still the blinking on the other LEDs stays the same. Disconnecting > both drives didn't change anything, because all LEDs are connected to the > controller board, he says. When my 8250 powers up, it sometimes flashes all 3 LEDs that way. It's usually after I have not used it for a long time. After it has warmed up, I can turn it off and back on and it works. I have not been able to find a cause other than the possibility of dirt or moisture in the circuits. The one LED that is different may be connected backwards. It's easy to reverse the connection where the LED is connected to the wiring. The fact that the LEDs flash indicated that the main processor is functioning. Not being able to read the command channel probably means that it did not complete the power up sequence in the ROM. > > Can he read the command channel? > > No, he says that hangs the computer. - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tcm.hut.fi.
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