Keils's USB example programs and Olimex LPC-H2148 board.

Development Boards MicroMod
1

Hello,

I am beginner for ARM family and I have Olimex LPC-H2148 board.

Keil directories include USB example programs for the Keil MCB2140 board. Example not working on the Olimex LPC-H2148 board.

(This two boards has LPC 2148 processor and 12Mhz xtal.)

Why Keil samples dont work by Olimex board?

2

I found the answer of my question.

Solution 1. Do short circuit E-C pins of Q3.

Solution 2. use PINSEL1 |= 0x80004000; command in usb_init()

3

bunalmis:
Solution 1. Do short circuit E-C pins of Q3.

Solution 2. use PINSEL1 |= 0x80004000; command in usb_init()

bunalmis, you are genius! I have struggled with this problem for a long time! Thank you very much!

4

Can you provide more details about how did you get this working. I have been trying to use Keil H-JTAG and LPC-H2148(no success).

Please let me know. Thanks.