Content originally posted in LPCWare by capiman on Sun Mar 01 06:37:19 MST 2015
Hi Isaac,
as far as I have seen in the schematic, the PCB has no USB to serial converter on board and USB lines (D+ and D-) go more or less
directly to LPC4330. So all processing must be done inside LPC4330. You need a USB stack (software!) inside LPC4330, which
control USB peripheral of LPC4330.
A simply blinky does not control USB peripheral.
A program which controls UART peripheral does not (at least not always) control USB peripheral.
For a test I think you must get back to initial (factory) software.
Or get some software which supports
1) USB device (USB profile CDC),
2) LPC4330,
3) your board (same pin connections, same oscillator, ...)
4) USB1 peripheral.
and perhaps more.
USB is nothing easy to get running for a beginner. Start with UART and try to understand it.
Or use a board which uses a USB to serial converter (like from FTDI, Silabs, ...)
Best regards,
Martin