Hi i am using local made lpc2148 micro controller development b0oard. i am copy the MBC2148 keil HID program and downloaded in to the micro controller.my board is working in pull speed USB mode(D+ pull up resister 1500 ohms) .when i connect the my board to PC(windows XP SP2)it shows some error pop-up message that is "one of the USB device attached to this computer has malfunctioned and windows dose not recognize it" what would be the problem.please help me
Look in the Keil ARM Utilities Folder. Read carefully the instructions for installing the HIDClient executable on your PC. If you do not understand the fact that you need an application driver for your USB device, then you need to read Jan Axelson's books at http://www.lvr.com. Even though the WINDOWS HID driver exists on your PC, you still need an application to use the HID driver.