Started by CraigsBar, 21:19, 04 February 15
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Quote from: CraigsBar on 22:07, 05 February 15with internal 128 and xmem 512, artifacts.They appear pretty constantly, but with most ferocity when testing row 7fc4
Quote from: gerald on 21:08, 05 February 15It would be better to keep them powered but have the CAS tight to 5V instead of beeing connected to the ASIC. If you remove the power and keep them in circuit, they may get damaged or perturbate the bus.
Quote from: gerald on 22:11, 05 February 15Artefact also on 7ec4 test ?A video is welcome for the 128 internal + 512 external.
Quote from: CraigsBar on 23:55, 05 February 15Then all 576k with xmem - artifacts.576k - YouTube
Quote from: gerald on 10:21, 06 February 15It looks really different from Remax CPC sympthoms where artefacts are only interferences with the display scan. They disappear once there is no more access to the external RAM.Here it looks like a real corruption of the video memory (and maybe other some location too). I only think about probing the RAM and the extension bus to understand the real problem.
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