e z L C D -‐ 4 0 5
|
134
Rev.
© 2016 Earth Computers Tech. Inc.
1.7.51 SD_SCREEN_CAPTURE
Description:
Saves an image of the displayed screen to the SD as .bmp file.
Supported file systems
: FAT12, FAT16, FAT32
Code:
44
hex,
68
dec
7
6
5
4
3
2
1
0
Byte 0: Command
This command is helpful when writing the documentation of your ezLCD project, because the
captured screen images may be used as examples. Screen capture files have names
"Scr_xxxx.bmp", where xxxx is a consecutive number. For example: Scr_0001.bmp,
Scr_0002.bmp, etc. The files are created in the "Scr_Cap" SD folder. If the SD does not have the
"Scr_Cap" folder, it will be created automatically.
Notes:
SD
card has to be formatted in the supported file system. This command may take up to
2 seconds to execute.
ezLCD Response
After execution of the SD_SCREEN_CAPTURE command, the ezLCD responds with either of the
following sequences:
In case of the
success
:
7
6
5
4
3
2
1
0
0
0
1
1
1
0
1
1
Byte 0:
3B
hex,
59
dec
In case of an
error
:
7
6
5
4
3
2
1
0
0
0
1
1
1
1
1
0
Byte 0:
3E
hex,
62
dec
The ezLCD response is sent through the same interface, which received the
SD_SCREEN_CAPTURE command.
Example:
SD_SCREEN_CAPTURE
Summary of Contents for ezLCD-405
Page 1: ......
Page 22: ...e z L C D 4 0 5 22 Rev 2016 Earth Computers Tech Inc Figure 2 ezLCD 405 Schematic...
Page 32: ...e z L C D 4 0 5 32 Rev 2016 Earth Computers Tech Inc...
Page 52: ...e z L C D 4 0 5 52 Rev 2016 Earth Computers Tech Inc SET_COLOR SET_XY...
Page 102: ...e z L C D 4 0 5 102 Rev 2016 Earth Computers Tech Inc...
Page 109: ...e z L C D 4 0 5 109 Rev 2016 Earth Computers Tech Inc...
Page 118: ...e z L C D 4 0 5 118 Rev 2016 Earth Computers Tech Inc...
