ST STR9 User manual

October 2007 Rev 2 1/9

UM0375

User manual

STR9 LCD extension board

Introduction

This user manual describes STR9 LCD extension hardware. As well as the block diagram

and schematics of the extension, a bill of materials and assembly instructions are also

included.

The STR9 LCD extension provides a graphic or character-based output to an application

using the STR9 Dongle. The switches allow the pinout of the extension to be configured for

use with different types of LCDs.

Figure 1. STR9 LCD extension board

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Contents UM0375

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Contents

1 STR9 LCD module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.5 Bill of materials and assembly instructions . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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1 STR9 LCD extension

1.1 Block diagram

This board is designed for use with the STR9 Dongle.

Figure 2. STR9 extension board block diagram

Main board features:

●Jumpers allowing the extension board to be connected to many types of LCDs.

EXTENDED_CONNECTOR

16 x GPIO, VCC, Gnd

SWITCHES

LCD_CONNECTOR

configurable

STA

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1.2 Schematics

Figure 3. STR9 extension board schematics

1.3 Configuration

Table 1. Extension board configuration according to LCD types

SWITCH POS. CONF. A CONF. B CONF. C CONF. D CONF. E

NAME 1-2 2-3 PIN SW PIN SW PIN SW PIN SW PIN SW

SW1 GND P30 GND 1-2 GND 1-2 GND 1-2 CS1^ 2-3 GND 1-2

SW2 VDD P31 VCC 1-2 VCC 1-2 VCC 1-2 CS2^ 2-3 VCC 1-2

SW3 GND V0 V0 2-3 V0 2-3 V0 2-3 GND 1-2 V0 2-3

SW4 VDD P32 RST 2-3 RST 2-3 RS 2-3 VDD 1-2 DB0 2-3

SW5 P33 V0 RW 1-2 E1 1-2 RW 1-2 V0 2-3 DB1 1-2

-P34E-E2-E-DI-DB2-

- P90 DB0 - RW - DB0 - RW DB3 -

- P91 DB1 - A0 - DB1 - E DB4 -

- P92 DB2 - DB0 - DB2 - DB0 DB5 -

- P93 DB3 - DB1 - DB3 - DB1 DB6 -

- P94 DB4 - DB2 - DB4 - DB2 DB7 -

- P95 DB5 - DB3 - DB5 - DB3 CS1 -

- P96 DB6 - DB4 - DB6 - DB4 CS2 -

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Any LCD (3.3 or 5 V) which is compatible with this pinout can be used. Software adaptation

for each type of LCD is required.

- P97 DB7 - DB5 - DB7 - DB5 RST -

SW15 A P35 DB6 2-3 DB6 1-2 CS1 2-3 DB6 2-3 RW 2-3

SW16 K P36 DB7 2-3 DB7 1-2 CS2 2-3 DB7 2-3 DI 2-3

SW17 A P37 A 1-2 A 1-2 RST 2-3 RST 2-3 E 2-3

SW18 K Vee K 1-2 K 1-2 Vee 2-3 Vee 2-3 Vee 2-3

- A ----A-A-A-

SW20 - K - - - - K 2-3 K 2-3 K 2-3

SW35 GND Vee GND 1-2 GND 1-2 Vee 2-3 Vee 2-3 Vee 2-3

Table 1. Extension board configuration according to LCD types (continued)

SWITCH POS. CONF. A CONF. B CONF. C CONF. D CONF. E

NAME 1-2 2-3 PIN SW PIN SW PIN SW PIN SW PIN SW

Table 2. Supported displays (provided by ELATEC)

Configuration Displays

CONF. A TEXT: EL0801x, EL0802x, EL1601x, EL1602x,

EL1604x, EL2002x, EL2004x(1)

GRAPHIC: EL16032x

CONF. B GRAPHIC: EL12232A

CONF. C GRAPHIC: EL12864A

CONF. D GRAPHIC: EL12864B

CONF. E GRAPHIC: EL12864H

1. * Not all LCD displays have a 20-pin connector. If these cases, the board should be connected from the left-most pin

(viewed from top). This may leave some pins unconnected, noting that A / K are not obligatory.

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1.4 PCB layout

Figure 4. Top view

Figure 5. Bottom view

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1.5 Bill of materials

Table 3. Bill of materials

Label Package Comment Order code

C01 0603 100 nF Farnell: 422-6859

(X7R, 16 V)

C02 3528_AB_REV2 2.2 µF Farnell: 757-720

(STD, 10 V)

C03 0603 10 nF Farnell: 422-6938

(X7R, 50 V)

CN0 DC10B 5-35 V GM: K375A

CN3 HDR2X10 EXTENDED_CON GM: MLW20G

LCD1 HDR1X20H Header 20H GM: S2G20

D01 SMA2 STPS140A ST: STPS140A

PW1 DPAK LF33/50xDT ST: LF33/50xDT

R1 TrimrPK50 PK50HK005 GM: PK50HK005

R20 TrimrPK50 PK50HE100 GM: PK50HE100

R21 0805 5R

R30-R37

R90-R97 0603 10kΩGM: R0603-10kΩ

SW0-SW5,

SW15-SW18, SW20,

SW35 HDR1X3 - GM: S1G36

(36pins=12*3)

Revision history UM0375

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2 Revision history

Table 4. Document revision history

Date Revision Changes

19-Jan-2007 1 Initial release.

09-Oct-2007 2 Updated order code for CN3 in Table 3: Bill of materials.

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