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--- moodlamp_hardware-debugging [2010/04/07 20:16] – created 85.181.10.170
+++ moodlamp_hardware-debugging [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
@@ Line 1: / Line 1: @@
-====== Test 1 ======
-Test for short between 5V and Ground:
-Switch your Multimeter to "continuity check" and Probe on the two screws on the "screw terminal(X1)" for short circuit.
-You could also youse the Resistance Measurement of your Multimeter, you should measure a rather high Resistance.
-If you have a short look closely at your PCB an find the short! As soon you have no short it is safe to connect your moodlamp to the Power Supply.
-====== Test 2 ======
-Test the USB Connection.
-Connect the moodlamp to your USB Port on your Linux Machine. Don't connect the Power Supply. Don't set the USBPWR Jumper.
-As a result the USB IC4 FT232RL get's Power from the USB Port but the rest of the circuit is dormant.
-The IC4 FT232RL is known by the Linux Kernel.
-Execute **tail -f /var/log/message** in your favourite shell, as soon as you plug in your moodlamp you should see:
-<code>
-Apr  7 22:02:36 big32 kernel: [104624.674498] usb 1-3: new full speed USB device using ohci_hcd and address 3
-Apr  7 22:02:36 big32 kernel: [104624.852065] usb 1-3: configuration #1 chosen from 1 choice
-Apr  7 22:02:36 big32 kernel: [104624.852318] ftdi_sio 1-3:1.0: FTDI USB Serial Device converter detected
-Apr  7 22:02:36 big32 kernel: [104624.852379] ftdi_sio: Detected FT232RL
-Apr  7 22:02:36 big32 kernel: [104624.852469] usb 1-3: FTDI USB Serial Device converter now attached to ttyUSB0
-Apr  7 22:02:36 big32 kernel: [104624.856573] usb 1-3: New USB device found, idVendor=0403, idProduct=6001
-Apr  7 22:02:36 big32 kernel: [104624.856582] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
-Apr  7 22:02:36 big32 kernel: [104624.856590] usb 1-3: Product: FT232R USB UART
-Apr  7 22:02:36 big32 kernel: [104624.856595] usb 1-3: Manufacturer: FTDI
-Apr  7 22:02:36 big32 kernel: [104624.856600] usb 1-3: SerialNumber: A9005jBZ
-</code>
-Make sure you get no "USB disconnect" and more "connect" messages while the moodlamp is still connected. If that happens you have a bug.
-if you unplug the moodlamp you should see:
-<code>
-Apr  7 22:04:10 big32 kernel: [104731.095092] usb 1-3: USB disconnect, address 3
-Apr  7 22:04:10 big32 kernel: [104731.095092] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
-Apr  7 22:04:10 big32 kernel: [104731.095092] ftdi_sio 1-3:1.0: device disconnected
-</code>