Jeff Epler aaca3eccf1 samd: PDMIn: Reduce code unrolling on samd21 only
Instead of unrolling the code 16 times, unroll it 4 times and loop
over it 4 times.  This gives the same 16 iterations, but at an expense
of less flash space.
2020-11-19 16:19:37 -06:00
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