Curtis,
I
chopped all the other stuff out
OK Jeff, this
E-Mail is way too long to read. However, just looking @the first point, I
did UDMA without using the interrupt. The interrupt is truely not a
requirement for UDMA.
[JWW>]
[JWW>]
1) Please describe in high level and was it using a SFF-8038 type
host ?
2) Can a non-INTR driven UDMA compete with one that does in
either:
a)
Transfer Rate
b) CPU
Utilization
3) If it involves ANY
polling are you not either
a) Consuming the CPU that you are trying to off load with
UDMA
b) Have a large gap after the data transfer is
completed to when you
checked for status ?
Jeff
