[En-Nut-Discussion] Design based around the ethernut1.3g

[Harald Kipp]

Rich,

Yes, Basemon option B sends bogus packets.

Basemon's RAM test is not very versatile. It may not detect
timing problems. It's main purpose is to find shorted or open
wires and the last RAM address as well as the number of banks.

We have also used 70 ns RAMs without problems. However, we do
extensive test before selecting new chips. RAM timing on
Ethernut is indeed highly critical.

You may also check the HC573, optionally replace it with an
AHC type. However, these chips are typically very noisy,
regarding EMC.

Harald