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It is alive for a couple of seconds and then vanishes.
The edge an frequency of the NMI pulse matches the start video signal. Is this right? The pulse is 5us wide.
I can figure out the NMI should last forever, unless fast mode is used, right ?
- Mon Dec 09, 2013 7:14 pm
- Forum: Development
- Topic: ZX80 Core - new ZX80 motherboards
- Replies: 259
- Views: 62932
Said this, I do not like these opaque soldering mask. I prefer the transparent ones.