User manual

Tamarisk

320

Software ICD

WARNING

Disabling temperature compensation should only be used in a debug

environment with test patterns. Disabling temperature compensation will

result in severely degraded performance.

Command Format:

Table 143 – Tcomp Disable Command Format

Byte Value Description

1 0x01 Start of message.

2 0x18 Tcomp Disable Command ID.

3 0x02 Parameters length.

4 to 5

0 = enable

1 = disable.

Disable/enable. Note value of 1 disables Tcomp.

6 checksum Frame check sequence.

Response Format:

This command results in an ACK message.

Table 144 – Tcomp Disable ACK Response Format

Byte Value Description

1 0x01 Start of message.

2 0x02 ACK Response

3 0x02 Parameters length.

4, 5 0x0018 Tcomp Disable Command ID.

6 checksum Frame check sequence.

3.7.3 Test Pattern Select – 0xF4

Description: Enables and selects a video test pattern. Selecting test pattern <0x0000>

disables the test pattern generator. This test pattern replaces the input video stream from the

FPA and facilitates testing of downstream processing blocks.

This requires a sequence of commands. The current mode of operation can also affect how

the test patterns look and the actual pixel values on the digital interfaces. Using a pre AGC

video tap (14 bit data) will allow for pixel data validation.

Also, note if automatic calibration has not been disabled or a range change occurs while a

test pattern is selected the test pattern will be corrupted.

The to avoid these issues command sequence should be as follows: