Need to scan 8 x 8 matrix drivers that are 2ms wide. TTL levels.

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jrr

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Looking to use a Teensy 2++ device to monitor an 8 x 8 driven matrix (5VDC levels) where the pulses are 2ms wide and when any of the 8 rows and 8 columns are congruent (low simultaneously) an output is activated for a set period of time. This is to convert a lamp matrix to an output that is active when any single light is lit.

So we use 8 inputs for the Rows and 8 inputs for the columns. There needs to be a lookup table that is 64 bits in size. This is not unlike a keyboard matrix, just a lot faster...

Ideally it is when the Row is watching for Lows, and the Columns are watching for Highs.

Is this doable with the Teensy? Is it fast enough?

Thanks!
 
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