Thanks, Dave.
That's pretty much my understanding. The fields are stored as 8 x 256K gapped EPROM images within two larger 8MB EPROMs, so 4 frames per PROM pair.
I accept that you can reprogram Dinosaur if you have the means to manipulate the data how it's required. What I don't know, and it's only a point of passing interest, is if Dinosaur ever came pre-programmed with a selection of Teletext pages.
I would be very surprised if RTR's reconstruction filter wasn't the best - without doubt the man certainly knew what he was doing.
Quote:
Originally Posted by ppppenguin
- SRAM or DRAM to hold the current image or even an image sequence
- Flash memory interface (USB or SD card) to hold lots of images
- USB interface for PC control, perhaps even for dynamic teletext
- Higher sample rate (13.5MHz), with oversampling probably computed at picture load time, to solve output filter problems
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No to number 2, but it's more than possible that the next version will be a USB device containing an SRAM frame buffer and a DAC - all else done in software. That would allow for all the other "wishes", and I'm starting to enjoy writing software more than straining my eyes with soldering SMDs!