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LPC2148 USB samples (not working)

2006-01-13 by Carsten Grøn

Hello,

I have been playing around with some of the USB samples from Keil 
etc, and been trying to get just one of them to run on a LPC2148 
board from www.embeddedartists.com (very nice boards btw) but I'm 
having some problems. Well, actually it's the sam eproblem no matter 
which sample I try, I always get a message from Win2K "Unknown 
device....."....
Now, before I bury myself deeeeeep into the "unknown of USB", is 
there something I need to be aware of when running some of these 
samples ? The LPC2148 board has P0.31 switching the USB+ to 3V3, and 
P0.23 senses Vcc from the USB host, which should be the same as the 
Keil MC2140 board......
The same thing happens with the Keil usbmem, usbhid and the philips 
vcom sample (the keil audio reports an internal linker error when I 
try to build that....)

So, something I must be doing wrong, any leads ???

(PS: I have ported uIP to a LPC2138 Ethernet board from 
embeddedartists running with the Keil RTX RTOS, working very nicely)



Carsten

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