Techwell TW8827 User Manual

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Techwell,Inc.

TW8816 Evaluation Board User's Manual

TW8827

Evaluation Board

User's Manual

(Rev 1.00)

Techwell, Inc.

408 E. Plumeria Drive

San Jose, CA 95134

URL http://www.techwellinc.com

Disclaimer

This document provides technical information for the user. Techwell, Inc. reserves the right to modify the

information in this document as necessary. The customer should make sure that they have the most recent data

sheet version. Techwell Inc. holds no responsibility for any errors that may appear in this document. Customers

should take appropriate action to ensure their use of the products does not infringe upon any patents. Techwell

Inc. respects valid patent rights of third parties and does not infringe upon or assist others to infringe upon such

rights.

Version 1.00 9/25/2007

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Summary of Contents for Techwell TW8827

Page 1: Evaluation Board
Techwell Inc. holds no responsibility for any errors that may appear in this document. Customers should take appropriate action to ensure their use of the products does not infringe upon any patents. Techwell Inc. respects valid patent rights of third parties and does not infringe upon or assist others to infringe upon such rights.
Page 2 Techwell,Inc. TW8816 Evaluation Board User’s Manual Document Revision History Version Date Notes Version 1.00 9/25/2007...
Page 3: Table Of Contents
Techwell,Inc. TW8816 Evaluation Board User’s Manual TABLE OF CONTENT OVERVIEW OF TW8816 ..........................4 EVALUATION BOARD ..........................5 POWER................................6 ANALOG/DIGITAL VIDEO INPUT INTERFACE ..................7 LCD PANEL CONNECTOR INTERFACES ....................7 BUILT-IN MICROCONTROLLER INTERFACE.................... 9 EXTERNAL MICROCONTROLLER..........ERROR! BOOKMARK NOT DEFINED.
Page 4: Overview Of Tw8816
TV or digital VGA monitor signals to be input for display on the same LCD display panel. Techwell's TW8816 is an enhanced version of the TW88, TW8800, TW8801, TW8802, TW8803, TW8804, and TW8806 flat panel TV/monitor controller. Primary enhancements include: Built-in...
Page 5: Evaluation Board
Techwell,Inc. TW8816 Evaluation Board User’s Manual 2. Evaluation Board Version 1.00 9/25/2007...
Page 6: Power
Techwell,Inc. TW8816 Evaluation Board User’s Manual 3. Power The evaluation board is provided with a DC power adapter. Typically, a 9V 1.6A power supply is provided in the kit, but depending on the LCD module, a higher voltage and higher current DC adapter such as a 12V 4A power supply may be used.
Page 7: Analog/Digital Video Input Interface
Techwell,Inc. TW8816 Evaluation Board User’s Manual 4. Analog/Digital Video Input Interface A video source is required to observe video output on the LCD screen controlled by TW8816. There are various video sources that could be used with the connectors and interfaces that are available.
Page 8 Techwell,Inc. TW8816 Evaluation Board User’s Manual Panel Power Selection (J7) The LCD panel power supply voltage can be selected with jumper J7. Please do not install more than one jumper at once as this would damage the power supply on the evaluation board.
Page 9: Built-In Microcontroller Interface
Techwell,Inc. TW8816 Evaluation Board User’s Manual Different kinds of LCD panels usually require their specific connectors. Since there are no standard connectors, the evaluation board has generic interfaces which are 8bits per color single pixel LVDS, 6bit per colors single pixel TTL, and 8bits per color single pixel output pins for the daughter boards.
Page 10: Operation Keys
Techwell,Inc. TW8816 Evaluation Board User’s Manual SPI ( SPI EEPROM available for internal microcontroller firmware ) TW8816 as I2C Master Internal microcontroller will not be initialized by “RESET while pressing MENU KEY” 8. Operation Keys There are 8 operation keys. Keys are shown with the Built-in and External microcontrollers.
Page 11: Using Hyperterminal
Techwell,Inc. TW8816 Evaluation Board User’s Manual 10. Using HyperTerminal The Hyperterminal can only be used to access I2C registers of the TW8816 using basic commands, send text file, and upgrade firmware of the external microcontroller. a. Select “Hyper Terminal” b. Connection Description c.
Page 12 Techwell,Inc. TW8816 Evaluation Board User’s Manual d. Set the COM port properties. External Microcontroller: 115200bps, 8 bits data, No parity, 1 bit stop, No flow control Internal Microcontroller: 9600bps, 8 bits data, No Parity, 1 bit stop, No flow control...
Page 13 Techwell,Inc. TW8816 Evaluation Board User’s Manual e. Set line delay :30~10ms, Character delay:0ms. Select [File\Properties\Settings\ASCII Setup..\]. It is required when you download a new firmware or setting file. f. Type [Enter] and see if it works. g. Basic Commands set. These should be working in any firmware revision.
Page 14 Techwell,Inc. TW8816 Evaluation Board User’s Manual Examples Change address: [8A]>C 98 address : 98 [98]> Dump registers: [8A]>d 0 Read [Adrs:8Ah,00h] 0Ah Read [Adrs:8Ah,01h] 83h Read [Adrs:8Ah,02h] 68h Read [Adrs:8Ah,03h] 20h Read [Adrs:8Ah,04h] 00h Read [Adrs:8Ah,05h] AFh Read [Adrs:8Ah,06h] 40h Read [Adrs:8A,07h] 02h [8A>...
Page 15: Using Tw-Terminal2
Techwell,Inc. TW8816 Evaluation Board User’s Manual Special commands. Some of these commands are not available. E E Level Set debugging message level 0: Only error message 3: Information message Call loader On/Off flat panel 11. Using TW-Terminal2 TW_Terminal2.exe is a Microsoft Windows based program provided with the evaluation board for testing, debugging, and updating firmware.
Page 16 Techwell,Inc. TW8816 Evaluation Board User’s Manual I. First, you must connect a USB Interface Board (RS-232 optional) to the evaluation board, and also have the appropriate driver installed for the USB Interface Board. Refer to USB interface Board User’s Manual.
Page 17 Techwell,Inc. TW8816 Evaluation Board User’s Manual R Index Read register W Index Data Write register < , > Register++, Register— Repeat previous command Examples: Change address: [8A]>C 98 address : 98 [98]> Dump registers: [8A]>d 0 Read [Adrs:8Ah,00h] 0Ah Read [Adrs:8Ah,01h] 83h...
Page 18 Techwell,Inc. TW8816 Evaluation Board User’s Manual Repeat previous command (by pressing “/” button) [8A]>r 2 Read [Adrs:8Ah,02h] 60h [8A]> // [/] Read [Adrs:8Ah,02h] 60h [8A]> Special commands. Some of these commands are not available. E E Level Set debugging message level...
Page 19 Techwell,Inc. TW8816 Evaluation Board User’s Manual ii. Click on the Button and a “Firmware Upload” window will appear. iii. Choose “SPI Flash” to update the firmware for the built-in microcontroller iv. Click on after Filename to choose the selected firmware hex file.
Page 20 Techwell,Inc. TW8816 Evaluation Board User’s Manual f. Register Control This control reads out the page of register data based on the “Assigned Valid Register Table.” The values are editable via this table format and the entire data page(s) can be read or written individually or as a whole.
Page 21 TW8816 Evaluation Board User’s Manual g. Other features of TW_Terminal There are also other features that are made simple by Techwell’s sample application. You may use the GUI to apply settings that you would normally have to manually apply by writing directly to the registers.
Page 22 Techwell,Inc. TW8816 Evaluation Board User’s Manual Version 1.00 9/25/2007 Figure 1 TW8806 Evaluation Board Input Output Connectors...
Page 23 Techwell,Inc. TW8816 Evaluation Board User’s Manual References: USB Interface Board User’s Manual TW_Terminal2 User’s Manual TW8816 Datasheet TW8816 Main Board Schematics TW8816 Embed u-Controller with TW9910 Daughter Card Board Schematics TW8806B A070VW01 Daughter Card Schematics Version 1.00 9/25/2007...