6D305 4D SYSTEMS, 6D305 Datasheet - Page 30

• Manufacturer Part Number: 6D305
• Description: MOD, GRAPHICS-CNTRLR, UVGA-PICASO-MD1
• Manufacturer: 4D SYSTEMS

Specifications of 6D305

• Accessory Type: Module For UVGA-PICASO-MD1
• Kit Features: 512KB Of Onboard SRAM, SPI Signal Allow The Module To Be Connected To Number Of SD & MMC Memory Card
• Supply Voltage: 3.3V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.1.18 Read Pixel
(R)
Serial Syntax :
cmd, x(msb:lsb), y(msb:lsb)
4DGL Syntax :
(refer to 4DGL programmers manual)
cmd : 52hex, Rascii
x : horizontal pixel position. 2 bytes
y : vertical pixel position. 2 bytes.
Description :
This command will read the colour value of pixel at location (x, y) on
the screen and return it to the host. This is a useful command when for example a
white pointer is moved across the screen and the host can read the colour on the
screen and switch the colour of the pointer when it’s on top of a light coloured area.
Example :
52hex, 00hex, 01hex, 00hex, 01hex
PICASO reply : C0hex
Reads a blue (C0hex) pixel at location x = 1dec (01hex) and y = 1dec (01hex).
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µVGA-PICASO-MD1