On Wednesday 22 October 2014 10:58:22 you wrote: > The irq is working correctly ? > > in the pre-series 720 I used, the irq was coming from the power supply > when we received it, the 720 was not working > > a chip was blown, this chip was used to generate the irq > from the power line frequency > > (was fixed by generating the irq from another source) > > symptomes: no keyboard, no cursor Yes, I didn't even try it without the 50Hz signal coming from the power supply. I created a small 555-based circuit to generate it and feed it into the power supply connector. André Message was sent through the cbm-hackers mailing listReceived on 2014-10-26 21:01:02
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