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I,m interfacing LPC2148 to PC through USB in the process of ennumeration after i recive set address command i send null packet n set address but then not getting setup packet for dd of 18 byte again getting set address
> I,m interfacing LPC2148 to PC through USB in the process of ennumeration after i recive set address command i send null packet n set address but then not getting setup packet for dd of 18 byte again getting set address
As of the original post, It's the same problem as this topic, http://www.keil.com/forum/docs/thread16271.asp
I don't like to repeat the same discussion here, join to above thread.
Anyway, is it a homework on a university course? Two different posters have the same problem at a time. If so, the teacher should know that, without a hardware bus analyzer, development of USB stack is just waste of time.
Tsuneo
we used usblyzer software but its not detecting the device.
>we used usblyzer software but its not detecting the device.
Did you apply "automatic capture of hot plugged device" feature?
Or try SourceUSB with "hot plugged" feature. http://www.sourcequest.com/
SourceUSB misses the first Get_Descriptor, but it catches next Set_Address and later sequence.
1) bus reset 2) Get_Descriptor( DEVICE ) 3) bus reset 4) Set_Address 5) Get_Descriptor( DEVICE ) 6) Get_Descriptor( CONFIG ) ...
Hello, I'm implementing USB mass storage device on LPC2148. My device is now detected but the properties show RAW data format and when i try to open or explore the drive i get error "Your device should be formatted" if i click on Yes it again gives error "The device cannot be formatted" . So i want to convert the data on my device to a format readable by Windows XP so which format i should use? From where to start? From where i can get code for it? are such codes available? How they can be implemented? I don't want to use SD card. Ya and which system would you suggest FAT or NTFS? Thank you.
Answered in this thread. http://www.keil.com/forum/docs/thread16271.asp