LPCXpresso LPC1343 board bootloader not recognized by PC USB port

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by CC58 on Sat May 26 11:48:42 MST 2012
I acquired a LPCXpresso LPC1343 board. It works fine with compiler/debugger using supplied USB connector.  I want to execute ROM based bootloader so wired up a second USB connector and connected PIO0_1 to GND, connected PIO0_3 to VDD.  Added 1.5K pullup resistor from USB_DP to VDD.  PC says unrecognized device no matter how many times I plug it in.  Tried two PCs; Windows7 and XP.

Out of frustration I bought a second LPC1343 board and it does not work either.

This should be easy.  What am I doing wrong?