Datasheet

Troubleshooting

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4.3.1 Information Tab

The information tab gives basic device state information, including local device information, partner device

information, and current link status. For both the local device and partner device, the tab gives the

following information:

• Device Name

• Device Revision

• I2C address

• Pixel clock range (set by LFMODE)

• Repeater Status (set by MODE_SEL)

• Serial Link Mode (set by MODE_SEL)

• Audio mode (set by configuration registers)

4.3.2 Pattern Generator Tab

The Pattern Generator Tab enables interactive control of the internal pattern generator features. The pane

controls timing information and different pattern settings, including a scrolling function. Timing information

is configured from the Video Control panel, and supports the following timing/clocking sources:

• External

• Internal

• Internal w/ Ext. Clock

The Internal timing option allows evaluation of the link performance without the need for an external

source. The Video Control panel also provides several timing and pixel clock options, including several

presets covering common video resolutions. See TI application note AN-2198 for more details.

4.3.3 Registers Tab

The Registers Tab allows for direct reading/writing of individual registers or register bits located on the

local device. Each register drop-down shows the name and description of individual bits or groupings of

bits. Use the check boxes to set individual bits, and commit the register write by clicking the “Apply”

button. Click the “Refresh” or “Refresh All” buttons to read an update of the selected register or all

registers respectively.

4.4 Troubleshooting

If the following window opens after starting the ALP software, double check the hardware setup and that

the board USB port is connected to the host PC.

4-6. No Devices error message

The USB driver may not be installed. Check the device manager. There should be a device named ”NSC

ALP Nano Atmel” device under the “Universal Serial Bus Controllers” as shown below.

ALP Software SNLU131–February 2013