3 × 3 Filter
Enabling writing the filter
Write the following three commands in sequence.
AddressData
F0F30000 08004600
F0F30004 0031FFFF
F0F30008 80000000
Disabling writing the filter
Write the following three commands in sequence.
AddressData
F0F30000 08004600
F0F30004 0031FFFF
F0F30008 00000000
When writing of the filter is enabled, the addresses 0xF0F62000 to 0xF0F62024 that store the filter table become open.
F0F62000 | F0F62004 | F0F62008 |
Top left | Top | Top right |
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F0F62010 | F0F62014 | F0F62018 |
Left | Center | Right |
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F0F6201C | F0F62020 | F0F62024 |
Bottom left | Bottom | Bottom right |
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The filter coefficients are specified with 16 bits from 0x0000 to 0xFFFF.
The most significant bit of the 16 bits represents a sign, the following 7 bits are the integer portion, and the least significant 8 bits are the fractional portion.
0100: 1.0
FF00:
0080: 0.5
0040: 0.25
The filter written here is read out when the optical filter is set to 8.
Display of Test Chart
Displaying the color bar
Write the following three commands in sequence.
AddressData
F0F30000 08004600
F0F30004 0037FFFF
F0F30008 80000001
Displaying the gray scale
Write the following three commands in sequence.
AddressData
F0F30000 08004600
F0F30004 0037FFFF
F0F30008 80000002
Turning off the test chart
Write the following three commands in sequence.
AddressData
F0F30000 08004600
F0F30004 0037FFFF
F0F30008 00000000
Control
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