Discussion group dedicated to the Philips LPC2000 family of ARM MCUs
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I've just been eying the new LPC1830 part. I find it attractive especially
because of its Hi-Speed ability.
I've been running through documents and was unable to locate any application
information regarding the hi-speed USB interface. Usually it was included in the
devices datasheet, a schematic or something similar. Has anyone managed to
engineer a working hi-speed bus yet? I cannot find any information whether the
hi-speed termination resistors are on-chip, or if the PHY requires pull-downs in
host mode, etc... I did look at Keil's MCB1800 schematics and they are void of
anything. Can someone confirm that?
Regarding the chip revision. I saw the errata for the '-'-part and I almost got
stunned. Alot of things went "wrong" in that revision. Is it still in
circulation and was it delivered to distributors? I wouldn't want to land on one
after manufacture to have non-working interfaces on the board. Especially
cumbersome is the SPIFI errata for flashless parts, which seem to be the only
ones available at the moment. BTW, did anyone come across any approximate or
semi-approximate dates for parts with internal flash?
I also wonder how SPIFI fares against internal flash. There are no solid
numbers, just some 90ns NOR flash comparisons with raw throughput, but the
internal flash does usually have the flash accelerator backing it up, while
SPIFI mentions no such thing.
Well, lots of unanswered questions wandering around in my head... :)
Thank you for taking the time.
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