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Manuel D’Utilisation
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Direct Drive LCD Design Guide
Index
1.
INTRODUCTION................................................................................................................................................ 3
1.1
D
IRECT
D
RIVE
LCD
O
VERVIEW
...................................................................................................................... 3
1.1.1
Philosophy ...................................................................................................................................3
1.1.2
Capabilities..................................................................................................................................3
2.
DRIVER CONFIGURATION............................................................................................................................. 4
2.1
LCD
D
IRECT
D
RIVE
C
ONFIGURATION
M
ACROS
.............................................................................................. 4
2.2
F
RAME
B
UFFER
C
ONFIGURATION
.................................................................................................................... 6
2.2.1
FRAME_HEIGHT .......................................................................................................................6
2.2.2
FRAME_WIDTH .........................................................................................................................6
2.2.3
V_LINES_INVERT.......................................................................................................................6
2.2.4
H_DOT_INVERT.........................................................................................................................6
2.2.5
PANEL_ROTATE .........................................................................................................................6
2.2.6
LCD_FRAMES ............................................................................................................................6
2.2.7
MAX_FRAME_REGIONS ...........................................................................................................6
2.3
D
RIVER
M
ODE
S
ELECTION
.............................................................................................................................. 8
2.3.1
SRAM_DD ...................................................................................................................................8
2.3.2
SRAM_NOMUX_DD ...................................................................................................................8
2.3.3
SDRAM_DD ................................................................................................................................8
2.3.4
SDRAM_CLUSTER_DD .............................................................................................................8
2.3.5
Dot Clock Hardware Connections...............................................................................................8
2.4
D
RIVER
M
ODE
C
ONFIGURATION
..................................................................................................................... 9
2.4.1
DOT_CLOCK_FREQUENCY_DATA..........................................................................................9
2.4.2
DOT_CLOCK_FREQUENCY_BLANK.......................................................................................9
2.4.3
DESIRED_FRAME_RATE ..........................................................................................................9
2.4.4
MINIMUM_MCU_ACCESS_PCT...............................................................................................9
2.5
LCD
P
ANEL
C
ONFIGURATION
.......................................................................................................................... 9
2.5.1
DOT_INVERT..............................................................................................................................9
2.5.2
V_LINES_xx and H_DOT_xx ......................................................................................................9
2.6
LCD
P
LATFORM
C
ONFIGURATION
................................................................................................................. 10
2.6.1
FRAME_CS ...............................................................................................................................10
2.6.2
FRAME_BUS_CYCLES.............................................................................................................10
2.6.3
CAS_LATENCY .........................................................................................................................10
2.6.4
SDRAM_PAGE_SIZE ................................................................................................................10
2.6.5
EDMAC_DD..............................................................................................................................10
2.6.6
Xxxx_PORT ...............................................................................................................................10
2.6.7
Xxxx_PIN...................................................................................................................................10
2.6.8
Xxxx_INTC ................................................................................................................................10
2.6.9
Xxxx_VECT................................................................................................................................10
2.6.10
Xxxx_TPU_CHANNEL .............................................................................................................. 11
2.6.11
Xxxx_TPU_PIN ......................................................................................................................... 11
3.
TYPICAL LCD PANEL CONNECTIONS ...................................................................................................... 12
3.1
LCD
PANEL INTERFACE
................................................................................................................................. 12
3.1.1
Power Supplies ..........................................................................................................................12
3.1.2
Clock..........................................................................................................................................12
3.1.3
HSync.........................................................................................................................................12
3.1.4
VSync .........................................................................................................................................12
3.1.5
Data Enable...............................................................................................................................13
3.1.6
RGB (Red Green Blue) Data .....................................................................................................13
3.1.7
Touch Screen..............................................................................................................................13
3.2
H
ARDWARE
D
ESIGN
...................................................................................................................................... 14
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