topic lpx43xx usb0 host HID keyboard in LPC Microcontrollers

lpx43xx usb0 host HID keyboard

shivrajtbm — Mon, 23 Aug 2021 04:02:11 GMT

i'm using lpx4357 and successfully completed keyboard interfacing using USB HID but when i connect a barcode scanner hard fault occurs after scanning .. only one byte read / detected and then it goes to hard fault.. can i get some ideas why this could be happen?? or any suggestions ?

please help!

Re: lpx43xx usb0 host HID keyboard

ZhangJennie — Fri, 27 Aug 2021 10:12:24 GMT

Is your project based on lpcopen demo ? if yes which one? any revise ?

Please track where runs to error? Does it enumerate well?

Re: lpx43xx usb0 host HID keyboard

shivrajtbm — Wed, 01 Sep 2021 10:34:55 GMT

issue solved .. thank you..

Re: lpx43xx usb0 host HID keyboard

Md_Rdgc — Fri, 01 Dec 2023 11:52:31 GMT

Hi,

I am trying to interface the USB barcode scanner. I am using the LPCOpen Keyboard Host example, I am getting the keyboard keys. But when I connect the barcode scanner, it shows device is enumerated, but now able to read the barcode data. Can you please let me know, what modification need to be done in the keyboard code example to read the barcode data.

Controller LPC4337

Barcode Make Newland.

Model NLS-HR11

Warm regards.