Rev.: 01 EM-AT91SAM3U LCD Interface Expansion Board (EB-AT91SAM3U-LCD) User Guide 1 EB-AT91SAM3U-LCD Overview The EB-AT91SAM3U-LCD is an extension board for the EM-AT91SAM3U Development Board (see Figure 1). Figure 1. LCD connector expansion board for EM-AT91SAM3U The expansion board has build in LED backlight driver circuit and 60pin FPC connector for the Kentec LCDs (3.5 inch: K350QVG-V2-F; 4.3 inch: K430WQC-V3-FF; 5.0 inch: K50DWN2-V1-FF; 7.0 inch: K70DWN2-V1-FF; 9.0 inch: K90DWN2-V1-FF). 2 EB-AT91SAM3U-LCD Dimensions Figure 2. Outline Dimensions (Top) Figure 2. LCD connector Location (Bottom) Rev.: 01 3 EB-AT91SAM3U-LCD Interface Table 1. Main Interface Signal (40pin header connect to EM-AT91SAM3U MCU board) Pin Symbol Description 1 CS Chip select signal for LCD 2 RS Command/Data control signal for LCD 3 WR Write control signal for LCD 4 RD Read control signal for LCD 5 D0 Data bit 0, default connected to GND on MCU board 6~13 D1~D8 14 D9 15~22 D10~D17 23, 24 GND Ground (0V) 25 Reset Reset input signal for LCD 26 BL_ON 27, 28 GND 29 XR 30 YU 31 XL 32 YD 33, 34 GND Ground (0V) 35, 36 3.3V Power Supply (3.3V) Lower 8-bit data bus Data bit 9, default connected to GND on MCU board Upper 8-bit data bus Backlight control input, "H": ON, "L": OFF, PWM for dimming control Ground (0V) Reserved for 4-wire resistor touch screen terminal Table 2. LCD Interface Signal (60pin ZIF connector to LCD module) Pin Symbol Description 1, 2 LED_K LED power supply (-) 3, 4 LED_A LED power supply (+) 5 GND 6 XR 7 YD 8 XL 9 YU 10 GND 11~13 NC 14 Reset 15 CS Chip select for LCD 16~19 NC No Connection 20 D0 Data bit 0, default connected to GND on MCU board 21~25 D1~D5 26, 27 NC 28~30 D6~D8 31 D9 32, 33 D10, D11 34, 35 NC Ground (0V) 4-wire resistor touch screen terminal Ground (0V) No Connection Reset input signal for LCD Data bit 1 ~ bit 5 No Connection Data bit 6 ~ bit 8 Data bit 9, default connected to GND on MCU board Data bit 10 ~ bit 11 No Connection Rev.: 01 Continued Table 2, LCD Interface Signal (60pin ZIF connector to LCD module) Data bit 12 ~ bit 17 36~41 D12~D17 42~44 GND Ground (0V) 45, 46 AVDD Power supply (3.3V) 47, 48 VCC Power supply (3.3V) 49 RS Command/Data select signal for LCD 50 RD Read control signal for LCD 51 WR Write control signal for LCD 52 PS0 LCD interface select pin for K350QVG-V2-F, default set to i8080 16-bit parallel. 53 PS1 54 PS2 55 PS3 56, 57 NC 58~60 GND No connection Ground (0V) 4 Schematics 1 2 3 4 D D R2 R1 R6 R5 R4 R8 C 1 LED-K 2 3 LED-A 4 5 XR 6 YD 7 XL 8 YU 9 10 11 12 13 0 RESET 14 0 CS 15 NC 16 NC 17 18 19 20 D0 21 D1 22 D2 23 D3 24 D4 25 26 27 D5 28 D6 29 D7 30 31 D8 32 D9 33 34 35 D10 36 D11 37 D12 38 D13 39 D14 40 D15 41 42 43 44 45 3V3 R19 0 46 3V3 47 48 RS 49 0 RD 50 0 WR 51 PS0 52 PS1 53 PS2 54 PS3 55 56 57 58 59 60 LED-K LED-K LED-A LED-A GND XR YD XL YU GND NC NC NC RESET CS SPCLK SPSDA NC NC D0 D1 D2 D3 D4 D5 NC NC D6 D7 D8 D9 D10 D11 NC NC D12 D13 D14 D15 D16 D17 HSYNC VSYNC DCLK AVDD AVDD VCC VCC DC RD WR PS0 PS1 PS2 PS3 WSYNC NC OE(DEN) GND GND CN1 R11 R12 R13 R14 R15 R16 R17 R18 3V3 3V3 NC 0 NC 0 0 NC NC 0 3V3 C1 0.1uF C2 0.1uF C P1 B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 CS RS WR/SCL RD R3 0 SCK 3V3 L1 22uH C3 4.7uF C4 R10 U1 1 D1 VIN SW GND GND 1.0uF LED-A 5 SW B LED-A 100K D2 2 R9 R7 RESET BL_ON 3 NC NC XR YU XL YD EN FB PT4110 0 4 LED-K R20 NC R21 15R(for 20mA) LED-K Title Size 3V3 A Number Revision A4 CON36 Date: File: 1 2 22-Aug-2011 Sheet of D:\KentecDisplay\Element14\Embest\EM-AT91SAM Drawn 3U\PCB\EM-AT91SAM3U_LC By: D.ddb 3 4 Figure 3. Expansion board schematic 5 LCD driver code examples Bellow attachment is the source code for the K350QVG-V2-F. NO. Document 1 Source code package Attachment