MAX11811TEVS [MAXIM]

Pseudo Multi-Touch Demonstration;


型号：	MAX11811TEVS
厂家：	MAXIM INTEGRATED PRODUCTS
描述：	Pseudo Multi-Touch Demonstration
文件：	总23页 (文件大小：6816K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

19-5520; Rev 0; 9/10

MAX11811 Touch Evaluation System (TEVS)

General Description

Features

The MAX11811 touch evaluation system (TEVS)

demonstrates the rich features of the MAX11811 touch-

screencontroller(TSC)andallowsitsevaluation.TheTEVS

consists of a USB interface board (UTIBB+), MAX11811

evaluation kit (EV kit), and a 4-wire touch sensor

mounted with an linear resonant actuator (LRA) motor

(USB cable included).

Hardware

S Complete Evaluation System Including

USB-to-Serial Interface (I C) Board

S Convenient Test Points Provided On-Board for

Digital Interface and Analog Signals

S Interfaces to Common 4-Wire Resistive Touch

Sensors through Standard FPC Connectors

The device is a complete resistive touch-sensor

controller solution that targets touch-enabled

devices with small- to medium-size displays. The device

enables miniaturization of consumer products due to its

ultra-small size. Its low power consumption makes it

attractive for portable devices.

1.25mm Pitch

1mm Pitch

0.5mm Pitch

S Built-In LDOs and Level Translators for Operation

with 1.8V, 3.0V, and 3.6V

The TEVS with haptics operates directly from the USB

S IR-Based Driver and Proximity Sensor Included**

power. Windows XP and Windows 7-compatible

software running on a PC interfaces to the TEVS board

through the computer’s USB communications port.

See the Quick Start section for setup and operating

instructions.

S Integrated Haptic Controller and Driver Motor for

Motor-Based Haptic Feedback

Software

S User-Friendly GUI Interface (Microsoft Windows

XP and Windows 7-Compatible USB Interface and

Drivers)

The EV kit daughter board provides a proven PCB layout

to facilitate evaluation of the device and must be inter-

faced to the appropriate I C timing signals for proper

S Easy Access to TSC Configuration Registers and

operation. See Figures 15, 16a, and 16b for connections

and appropriate voltage levels. Refer to the MAX11811

IC data sheet for timing requirements and register

addresses.

Status Registers

S Direct and Autonomous Conversion-Mode

Demonstration Capability

S Ability to Capture Raw Data and Display the Data

in Either Conversion Mode

S Pseudo Multi-Touch Demonstration

EV System Contents List

QTY

DESCRIPTION

Ordering Information

Software and driver CD-ROM.

EV kit daughter board (with the TSC mounted on it,

but can be separated from the TEVS for evaluation

of the TSC in the user setup).

PART

TYPE

INTERFACE TYPE

MAX11811TEVS+

EV System

I²C

+Denotes lead(Pb)-free and RoHS compliant.

USB interface board (UTIBB+). This acts as a

gateway converting and accepting data from the

USB port to I²C for the EV kit. The EV kit plugs into

the UTIBB+.

4-wire touch sensor mounted with an LRA motor.

USB cable for power and communication.

*Mounted on a 0.125in x 3.5in x 9in Plexiglas base.

Windows and Windows XP are registered trademarks of

Microsoft Corp.

**The GUI does not support this feature.

_______________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MAX11811 Touch Evaluation System (TEVS)

MAX11811TEVS+ Block Diagram

HAPTIC

MOTOR

I C

Y+

X+

Y-

X-

USB

INTERFACE

IRQ

MAX11811

USB INTERFACE

BOARD

4-WIRE

RESISTIVE

TOUCH SCREEN

MAX11811

EV KIT+

TO HOST

1.8V TO

3.6V/GND

(UTIBB+)

FPC

CONNECTOR

Component Lists

MAX11811 Interface Board

DESIGNATION

QTY

DESCRIPTION

DESIGNATION

QTY

DESCRIPTION

10pF Q5%, 50V C0G ceramic

capacitors (0603)

TDK C1608C0G1H100J

A0/CSB, A1/DOUT,

CSB, EN1B,

C20, C21

C22

EN2B, GND100,

GND101, GND102,

GPIO_K1–GPIO_

K8, MISO, P1_4–

P1_7, P3_4–P3_7,

PIRQB, SCL, SCL/

CLK, SCLK, SDA,

SDA/DIN, TIRQB,

U2-PIN1,

33000pF Q10%, 16V X5R

ceramic capacitor (0603)

Taiyo Yuden EMK107BJ333KA

Test points

C26, C27, C28

FB1, FB2

Not installed, capacitors

1.5A, 26I ferrite beads (1206)

Steward MI1206K260R-10

Loops for test with 2 vias (use

20AWG wire to make loops)

U2-PIN20

GND103, GND104

1FF Q10%,16V X5R ceramic

capacitors (0603)

TDK C1608X5R1C105K

C1, C2, C11, C13

C3, C6, C12, C14

J1–J5, J11–J17,

J22

Not installed, headers

10FF Q20%, 6.3V X5R ceramic

capacitors (0603)

TDK C1608X5R0J106M

J6, J7

2-pin headers

3-pin headers

J8, J9, J18, J19

21-position SMD female

connector

Hirose DF9-21S-1V(32)

C4, C5, C9, C10,

C15–C19, C23,

C24, C25

0.1FF Q10%, 50V X7R ceramic

capacitors (0603)

TDK C1608X7R1H104K

J10

J20

5-position mini-USB connector

Hirose UX60A-MB-5ST

22pF Q5%, 50V C0G ceramic

capacitors (0603)

C7, C8

TDK C1608C0G1H220J

______________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Component Lists (continued)

MAX11811 Interface Board (continued)

DESIGNATION

QTY

DESCRIPTION

DESIGNATION

QTY

DESCRIPTION

Dual-row JTAG header, 0.1in

centers, gold plated

LDO regulator (5 SC70)

Maxim MAX8511EXK25+

J21

RGB clear LEDs (0805)

Lumex Opto SML-LX0805SIC

USB-to-serial UART (32 LQFP)

FTDI FT232BL

LED2, LED3, LED4

R1, R2

4.7kI resistors (0805)

1Kb, 1.8V SRL EEPROM

(8 SO)

Atmel AT93C46EN-SH-B

R3, R4, R10, R19,

R32–R39, R40,

R41

Not installed, resistors

Microcontroller (68 QFN-EP*)

Maxim MAXQ2000-RAX+

196kI Q1% resistor (0805)

590kI Q1% resistor (0805)

61.9kI Q1% resistor (0805)

100kI Q1% resistors (0805)

100kI resistor (0805)

215I resistors (0805)

0I resistors (0805)

Octal-level translator

(12 TQFN-EP*)

Maxim MAX3395EETC+

R8, R22

R20

Not installed

R9, R16, R17

R11–R14

R15, R18

R21

16MHz crystal

ECS ECS-160-20-5PXDN-TR

51kI resistors (0805)

169kI Q1% resistor (0805)

27I resistors (0805)

6MHz crystal

ECS ECS-60-20-5G3XDS-TR

R23, R24

R25

Not installed, crystal

1.5kI resistor (0805)

2.2kI resistor (0805)

470I resistor (0805)

Bumpers (rubber feet, on

bottom of board)

3M SJ-5306 (clear)

R26

—

R27

R28

10kI resistor (0805)

Shunts (J8, J9, J18, and J19)

Sullins STC02SYAN

R29, R30, R31

3.3kI resistors (0805)

—

Adjustable output LDO

regulators (5 SC70)

Maxim MAX8512EXK+

*EP = Exposed pad.

U1, U7

8-channel level translator

(20 TSSOP)

Maxim MAX3001EEUP+

_______________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

MAX11811 EV Kit Daughter Board

DESIGNATION

QTY

DESCRIPTION

DESIGNATION

QTY

DESCRIPTION

Not installed, header

2-pin headers

C1–C5

Not installed, capacitors

J5, J6, J7

10FF Q20%, 6.3V X5R

ceramic capacitors (0603)

TDK C1608X5R0J106M

C6, C9

SMT connector with through

hole

Molex 39-53-2044

0.1FF Q10%, 50V X7R

ceramic capacitor (0603)

Murata GRM188R71H104K

J9–J12

LED1

3-pin headers

Red LED (0603)

Lite-On LTST-C190CKT

220pF Q5%, 50V C0G

ceramic capacitor (0603)

TDK C1608C0G1H221J

R1–R5, R7, R8, R9,

R17, R18, R19

0I resistors (0603)

215I Q1% resistor (0603)

100kI Q1% resistor (0603)

Not installed, resistors

1FF Q10%, 25V X5R ceramic

capacitor (0603)

TDK C1608X5R1E105K

C10

R10

R11, R12, R13, R15

R16

R20

5.11kI Q1% resistor (0603)

32.4I Q1% resistor (0603)

GND, GND1, GND3,

GPI, GPO, PGND,

VBAT, VDD, VDDIN,

VDDM, VDDP, VPD,

X+, X-, Y+, Y-

Test points

Touch-screen controller

(20 TQFN-EP*)

Maxim MAX11811ETP+

4-position SMD connector

FCI SFW4R-1STE1LF

SMD proximity sensor, IR

Avago Tech HSDL-9100-021

21-position SMD male

connector

Hirose DF9-21P-1V(32)

Photo sensor

Agilent APDS-9002

Shunts (J9, J10)

Sullins STC02SYAN

—

4-position SMD connector,

gold

Hirose FH19C-4S-0.5SH(25)

*EP = Exposed pad.

Table 1. AAC LRA Motor Specification

Vendor Specifications

Motor Vendor and Specifications

Source: AAC Acoustic Technology (www.aacacoustic.

com) (see Table 1).

Part Number

ELV-10ES

Weight

2.5g (nominal)

Rated Voltage

1.41V

RMS

Nominal Operating Current

Maximum Input Voltage

Operating Temperature Range

Storage Temperature Range

60mA max

1.875V

Touch-Panel Vendor and Specification

Densitron and Fujitsu are approved panel vendors

for resistive touch-screen controllers from Maxim (see

Tables 2 and 3 for recommended touch panels).

RMS

-20NC to +70NC

-40NC to +80NC

______________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Table 2. Densitron 4-Wire Resistive

Touch-Panel Specification

Table 3. Fujitsu 4-Wire Resistive Touch-

Panel Specification

Part Number

T010-1401-T670

61.4mm x 80.3mm

54.4mm x 71.2mm

51.4mm x 68.2mm

30mm

Part Number

DTS408-0380-00 DTS408-0280-00

Outer Dimension

Transparent Area

Active Area

Screen Diagonal

3.8in

2.8in

Dimension

(W x H x D)

91mm x 72mm x

0.95mm

70mm x 55mm x

1.4 mm

Flex Tail

59.6mm x

46.1mm

Viewing Area

81mm x 63mm

79mm

Glass Thickness

PET Film Features

Transparency

0.7mm

Clear

Active Area Width

(mm)

58mm

44mm

80%

Active Area

Height (mm)

58mm

Package Mode

Transparency

Film glass

80%

Figure 1. Complete MAX11811 Touch Evaluation System (TEVS) Photo

_______________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

HAPTIC

MOTOR

I C

Y+

X+

Y-

X-

USB

INTERFACE

4-WIRE

RESISTIVE

TOUCH SCREEN

MAX11811

IRQ

USB INTERFACE

BOARD

MAX11811

EV KIT+

TO HOST

1.8V TO

3.6V/GND

(UTIBB+)

FPC

CONNECTOR

Figure 2. MAX11811 Touch Evaluation System (TEVS) Block Diagram

3) The software comes with the USB driver and a GUI

application. Unzip the files and save the contents in

an easily accessible location.

Quick Start

Note: In the following sections, software-related items

are identified by bolding. Text in bold refers to items

directly from the EV kit software. Text in bold and under-

lined refers to items from the Windows operating system.

4) Locate the Setup.exe file and double-click on it, then

follow the instructions for installation.

5) The driver for the EV kit is installed in the following

location:

Procedure (TEVS Software and

USB Driver Installation)

1) Before plugging the TEVS into an available port on

a Windows XP or Windows 7 PC, the TEVS software

must be installed.

C:\MAXIM TSC USB DRIVER CDM20602

6) The application along with its supporting files is

located at:

2) Ensure that the jumpers on the UTIBB+ board are in

the following positions:

C:\Program Files\Maxim Integrated Products\

MAX118xx EVS <version>

J8: 2-3

J9: 2-3

J19: 1-2

7) A shortcut to the application executable file is

created on the desktop and in the Start | Programs

menu.

8) To uninstall the software, go to My Computer | Add

or Remove program.

______________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Hardware Installation

Detailed Description of Hardware

Ensure that the MAX11811 EV kit daughter board is

properly mounted on the UTIBB+ and the touch-screen

panel is properly connected to the daughter board. The

daughter board houses the touch-screen controller IC.

This module processes the data from the touch-screen

panel connected to it and streams it out to the UTIBB+

interface board.

Note: Install the software before starting this step.

Connect the TEVS to the PC using the USB cable

provided. A dialog box appears, as shown in Figure 3.

Click on the Install from a list or specific location

(Advanced) radio button and then press the Next >

button.

Type C:\MAXIM TSC USB DRIVER CDM20602 in the

edit box, as shown in Figure 4, or press the Browse

button to find the CMAXQUSB driver folder. Press the

Next > button to proceed.

The UTIBB+ acts as an intermediary gateway that

converts the I C (signal levels and protocol) into the

USB for processing by the PC. The UTIBB+ includes a

MAXQ2000 microcontroller to carry out this task.

During the installation steps, a Hardware Installation

warning message is displayed, as shown in Figure 5.

Press the Continue Anyway button to proceed.

Follow all the steps that come up next and exit when

done. At the end of the process, the driver is installed

and the device is ready to be used. Disconnect and plug

the device back in again.

Figure 3. Found New Hardware Wizard Dialog

_______________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Figure 4. Search for the Best Driver

Figure 5. Windows Logo Testing Warning

______________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Haptic Registers Tab

The Haptic Registers tab holds registers for configuring

the haptic patterns (refer to the MAX11811 IC data sheet

for details on the registers). The user can manipulate

the values through the drop-down combo boxes and the

various checkboxes.

MAX11811 TEVS GUI Description

After successful installation of the driver, connect the

TEVS to the PC using the USB cable. Start the GUI by

double-clicking on the MAX118xxEVS <version>.exe

file. Following a successful communication link, the GUI

indicates what it has found at two locations on the GUI:

As in the Registers tab, the factory-default values from

the MAX11810-11_init.ini files are loaded onto the GUI

and then written into the TSC at startup.

1) The window caption:

MAX11811 4-wire Advanced Touch Screen

Controller

The quickest way to test the haptic patterns is to use the

preprogrammed set of values given in the drop-down

combo boxes. The drop-down combo box in green is for

the linear resonant actuator (LRA) motor and the drop-

down combo box in yellow is for the eccentric rotating

mass (ERM) motor (see Figure 7).

2) The status bar:

TSC Communication: I2C TSC device found

I2C Addr. = 0x96

USB comm. successful

Registers Tab

The Registers tab shown in Figure 6 displays a

successful communication link with a TSC device. This

tab displays the registers related to X, Y, Z1, and Z2

measurement of the device. The user can manipulate the

right or the hex values on the left. Refer to the MAX11811

IC data sheet for details on the registers.

The user also has the ability to Enable Haptics (check-

box) and Generate Haptic (button). A delay can also be

entered in milliseconds for the haptic to be generated

through the Haptic Delay edit box.

Any manual changes made to the registers should be

followed by pressing the Write Registers button for the

value to be sent to the TSC.

As in the Registers tab, the user can change the factory-

default values in the MAX11810-11_init.ini file, with new

values entered on the GUI using the File | Save option

from the menu bar. This overwrites the factory-default

values in the MAX11810-11_init.ini file. The user also has

the option to save the register values on the GUI screen

under a different name using the File | Save As option,

and to open and load a previously saved file by using the

File | Open and Load option.

Upon startup, factory-default values of the TSC registers

from the MAX11810-11_init.ini files are loaded onto the

GUI and then written into the TSC.

The user can change the factory-default values in the

MAX11810-11_init.ini file, with new values entered by

the user on the GUI by selecting the File | Save option

from the menu bar. This overwrites the factory-default

values in the MAX11810-11_init.ini file. The user also has

the option to save the register values on the GUI screen

under a different name by selecting the File | Save As

option, and to open and load a previously saved file by

selecting the File | Open and Load option.

Touch Data Tab

The Touch Data tab displays the user inputs on

the touch panel on a screen. The user can make

various selections to display a combination of X, Y, Z1,

and Z2 data along with their processed/mathematical

interpretation.

The GUI automatically writes to the TSC when a new

.ini file is opened and loaded. However, when the user

individually manipulates bits on the GUI screen, it must

be followed by pressing the Write Registers button. The

Read Registers button reads all the registers from the

TSC and displays it in the binary and hex fields.

As in the Haptic Registers tab, the user can Enable

Haptics (checkbox) and also apply a delay in

milliseconds through the Haptic Delay edit box. The

drop-down combo box with preprogrammed haptic

patterns is also available in this tab for both the LRA and

ERM motor.

At any time, the computer mouse can be scrolled over

a checkbox (the bit indicators) and the status with a

description of the bit is indicated by the tool tip.

The TSC has two modes of operation, direct and autono-

mous. Refer to the MAX11811 IC data sheet for more

details.

Note: Any changes on the GUI must be followed by a

press of the Write Registers button for the value to be

loaded into the TSC.

Direct Mode: Direct mode can be selected in the

Registers tab by selecting it in the Operating Mode

_______________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Figure 6. Registers Tab

10 _____________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Figure 7. Haptic Registers Tab

______________________________________________________________________________________ 11

MAX11811 Touch Evaluation System (TEVS)

Configuration register, or by selecting it in the Touch

Data tab, as shown in Figure 8.

TSC chip fully supports this feature, as described in the

MAX11811 IC data sheet.

Autonomous Mode: Autonomous mode can be

selected in the Registers tab by selecting it in the

Operating Mode Configuration register, or by selecting

it in the Touch Data tab, as shown in Figure 9.

Reg. Data Snd/Rcv Tab

The Reg. Data Snd/Rcv tab lets the user send and

receive multiple data to the TSC registers.

Figure 14 shows an example where the first line is writing

0xF1 to register 0x01 (the Activate checkbox must be

checked). The second line reads register 0x01 with what

was written in the first line.

Raw Data

The Raw Data tab (Figure 10) displays a stream of raw

data collected during the operation of the TSC. This data

can be saved for data analysis by pressing the Save

Data button.

The TSC + Eval. Sys. Response (Hex) box shown

in Figure 14 displays the whole protocol and may be

of interest while debugging only. The 4F 4B 00 is the

response from the TEVS following a successful write and

is the ASCII OK, 5A 00 01 F1 is the response from the

TEVS for a request read, 5A is a sync byte, 00 is reserved,

01 indicates that 1 byte of data is to follow, and F1 is the

(1 byte) data.

Multi-Touch Tab

The Multi-Touch tab (Figures 11, 12, and 13) gives a

simple demo of the multi-touch on a resistive panel. Use

the touch panel to enlarge and reduce the picture found

in this tab. This works only in the autonomous mode.

Contact the factory for details on this feature.

The TSC Response ONLY (Hex) box displays the TSC

response only. Since the only relevant information is the

Proximity Sensing Tab

The GUI currently does not support this feature. However,

this feature is available in the TEVS hardware and the

12 _____________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Figure 8. Touch Data Tab (Direct Mode)

______________________________________________________________________________________ 13

MAX11811 Touch Evaluation System (TEVS)

Figure 9. Touch Data Tab (Autonomous Mode)

14 _____________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Figure 10. Raw Data Tab

______________________________________________________________________________________ 15

MAX11811 Touch Evaluation System (TEVS)

Figure 11. Multi-Touch Tab (Before Zoom Out and Rotate)

16 _____________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Figure 12. Multi-Touch Tab (Single-Touch Active)

______________________________________________________________________________________ 17

MAX11811 Touch Evaluation System (TEVS)

Figure 13. Multi-Touch Tab (After Zoom Out and Rotate During the Multi-Touch Mode)

18 _____________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Figure 14. Reg. Data Snd/Rcv Tab

______________________________________________________________________________________ 19

MAX11811 Touch Evaluation System (TEVS)

Figure 15. MAX11811 EV Kit Schematic

20 _____________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Figure 16a. MAX11811 Interface Board Schematic (Sheet 1 of 2)

______________________________________________________________________________________ 21

MAX11811 Touch Evaluation System (TEVS)

Figure 16b. MAX11811 Interface Board Schematic (Sheet 2 of 2)

22 _____________________________________________________________________________________

MAX11811 Touch Evaluation System (TEVS)

Revision History

REVISION

NUMBER

REVISION

DATE

PAGES

CHANGED

DESCRIPTION

9/10

Initial release

—

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.

Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

2010 Maxim Integrated Products

Maxim is a registered trademark of Maxim Integrated Products, Inc.

MAX11811TEVS [MAXIM]

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