Manohar HK

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8 years, 10 months ago.

mbed application board is not getting detected as a USB drive.

I have received mbed application board along with nxp 1768 mbed module.

1. NXP1768 mbed module is working fine, It is getting detected as USB drive in my MacBook, I am able to flash the *.bin. 2. When I insert the mbed module to mbed application board and then connect it to my MacBook host, it is not getting detected as usb drive.

Please provide information/solution if I am missing anything here.

Question relating to:

Last updated: 29 Jan 2019
application, Board

1 Answer

David Fletcher
8 years, 10 months ago.

If you can flash your bin file the the USB is working. Are you using the same USB connector on the LPC1768 after you plug it into your mbed application board, if not try it.

Yes I am using the same USB connector. Just mbed LPC1768, is getting detected in my MacBook, but once I insert the same module to mbed application board then connect the USB cable to my pc it is not getting detected.

posted by Manohar HK 17 Jun 2015

Is the power led on, when you are plugged into the mbed application board?

posted by David Fletcher 17 Jun 2015

yes Infact if i take out mbed module alone and flash it any program(say, print hello world on graphics lcd) and then insert the module back to mbed application board, the program runs fine, but only it won't detect as usb drive on my pc.

posted by Manohar HK 17 Jun 2015

Can you measure the 5v and 3v on pins 39 and 40 while the mbed is plugged into the application board?

posted by David Fletcher 17 Jun 2015

Looks like power supplied through USB cable in my laptop was the issue. I have connected the whole setup to my windows desktop pc, it worked fine. It is getting detected as USB drive with mbed application board.

Thanks David.

posted by Manohar HK 18 Jun 2015