Hi, I am using MCB2300 (mounted with LPC2387) which i want to act as USB Host for USB Pen Drive. I tried downloading the example code of http://www.keil.com/support/man/docs/rlarm/rlarm_fs_ex_msd.htm. but it says "Drive not connected, please connect it ..." . I observed, that USB pen drive is not powered up when it is connected to MCB2300 eval kit. The LED on it lights up when connected to PC. Please guide me, do i need to enable any thing in software or change any sought of jumper settings on eval board.
I got to above conclusion, seeing the schematic of MCB2300 board on the Keil's web. http://www.keil.com/mcb2300/mcb2300-schematics.pdf
Sheet #6 of the schematics shows the circuit around the USB-A receptacle. You'll see these USB-A connections on the schematics,
D+2 -- R83 -- P0.31 D-2 -- R82 -- USBD-B
P0.31 and USBD-B pins are seen just on LPC2388 (IC4, on sheet #1), not on LPC2387 (IC10, on sheet #5)
But Keil mounts the USB-A receptacle on MCB2387, though they don't put the receptacle on MCB2360/2370
Pictures of MCB2360/2370/2387/2388 http://www.keil.com/support/man/docs/mcb2300/mcb2300_intro.htm
I recommend you to contact to Keil support to ask why MCB2387 mounts unused USB-A receptacle. They may have updated the board circuit from above schematics.
Tsuneo