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sdramThing4.5 "Logic Analyzer"

An AVR, 128MB SDRAM DIMM, old laptop LCD, and a handful of TTL chips — 30+MS/s 32-channel logic-analyzer interface for an analog ‘scope. This is a Sample/Repeat “Logic Analyzer” with up to 32 channels at 30+MS/s, each. After sampling, the data is repeated e.g. to an oscilloscope for viewing. Two channels of the sampled data are displayed as red and green in “rasta”(raster) fashion on an LCD display. Cursors (in blue) are used to select a window for repeating, allowing for bright ‘scope traces. “

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