LMK01000EVAL/NOPB National Semiconductor, LMK01000EVAL/NOPB Datasheet - Page 14

• Manufacturer Part Number: LMK01000EVAL/NOPB
• Description: BOARD EVALUATION FOR LMK01000
• Manufacturer: National Semiconductor

Specifications of LMK01000EVAL/NOPB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Port Setup and Debugging Communication Issues
Debugging Communication Issues
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Debugging LPT Communication Issues
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Debugging USB Communication Issues
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Ensure that the correct mode of USB or LPT is selected.
Ensure that the port setup is correct
Ensure that the cable is properly hooked to the board such that it dangles off the edge of the board, as
opposed to across the board.
Click the POWERDOWN bit on the Bits/Pins page and press Ctrl+L and observe the current the board
draws. Now unclick the POWERDOWN bit and observe the current. If you can change the current in
this way, then communication is working.
Ensure that the proper port is selected. CodeLoader does not auto detect this.
You need administrative rights on the machine to write to the parallel port.
After installing CodeLoader, restart the machine to ensure that the parallel port drivers are installed
correctly.
For windows settings, make sure that the port is enabled. Sometimes, there is a windows setting called
AUTO, which causes issues with CodeLoader if this port is shared by a printer.
Ensure that the green light is on for the USB board.
Try USB->Version to get the USB version ID. If it comes back blank, then CodeLoader is not
communicating properly with the USB board.
This should not be necessary, but if somehow the USB driver is not installed properly, unplug the USB
board, uninstall it from the device manager, then plug it back in.
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