*mydirectindustry

Catalogs
TOPWAY LCD
HMT070ETD-C

HMT070ETD-C

Product catalog summary

Basic Specification
The TOPWAY HMT070ETD-C is a Smart TFT Module with a 32-bit MCU and graphics engine, suitable for industrial and medical applications. It features a 7.0” screen, 800x480 resolution, 65k color depth, and operates between -20 to +70°C.

Absolute Maximum Ratings
The module's power supply voltage is 11.0 to 26.0 V, with an operating temperature range of -20 to 70°C and storage between -30 to 80°C. Exceeding these limits may cause damage.

Electrical Characteristics
Operates at 11.0 to 26.0 V with specific voltage levels for RxD and TxD signals. Operating current is to be determined.

Function Specifications
Stores UI, picture, and icon files in FLASH memory, accessible via USB, and supports real-time data access through UART or Ethernet.

Quick Start Guide
Includes installing the TOPWAY Graphics Editor, designing UI flow, downloading to the Smart LCD, powering on, and connecting to a host for data display.

Design and Handling Precautions
Ensure adjustable V0 and VCOM for contrast, avoid exceeding maximum ratings, and maintain short signal lines to reduce noise. Store in a controlled environment.

CTP Mounting Instructions
Bezel window should be larger than the CTP active area with a gasket installed. Support brackets may be necessary for slim modules.

Face Mounting
CTP assembly should be on a flat area using adhesive, with a gap of ≥0.3mm around the cover lens. Support brackets are recommended for backside support.

Additional Cover Lens Mounting
Maintain a 0.2~0.3mm gap between the cover lens and CTP surface. The cover lens window should be ≥0.5mm larger than the CTP active area.

RTP Mounting Instructions
Maintain a gap of 0.2~0.3mm between the bezel and RTP Active Area. Protect circuit wire areas with gaskets.

General Design
RTP Visual Area should be larger than TFT V.A., and RTP Active Area should be larger than TFT A.A.

Warranty
Product guaranteed to perform according to specifications. Responsibility not accepted for defects from additional manufacturing or external forces.

Document Overview
This document is the TOPWAY SMART LCD Command Manual Protocol V5.04, detailing commands for configuring and controlling SMART LCDs.

Data Value Specifications
Describes 64-bit, 32-bit, and 16-bit values in byte sequences from MSB to LSB.

Command Descriptions
Includes Config/Status, Display Control, and VP Functions with specific command codes for various operations.

Command Details
Details specific commands like hand_shake, read_version, and touch_response, among others.

Communication Packet Structure
Commands and responses are transferred in a specific packet structure with headers and tails.

USB Drive Commands
Includes U_drv_format and U_drv_unlock for USB drive operations.

Display Control Commands
Commands for displaying pages, setting colors, and managing screen refresh.

VP Function Commands
Commands for writing and reading values to/from VP elements.

Key Points
Commands must follow a specific packet structure, with critical addresses and data lengths for execution.

Specifications
Details on VP_N32 and VP_N64, including address requirements and related commands.

Procedures
Includes N32_fill, N64_write, and N64_read procedures for memory operations.

Response Codes
Each command execution is followed by a response code confirming execution.

Notes
Emphasizes the importance of adhering to the communication packet structure for successful command execution.

Catalog excerpts

HMT070ETD-C LCD Module User Manual Release Date - Preliminary Draft release www.topwaydisplay.com www.topwaysz.com Document Name: HMT070ETD-C-Manual-Rev0.1 Page: 1 of 11

Open the catalog to page 1

LCD Module User Manual www.topwaydisplay.com www.topwaysz.com Document Name: HMT070ETD-C-Manual-Rev0.1 Page: 2 of 11

Open the catalog to page 2

LCD Module User Manual 1 Basic Specification TOPWAY HMT070ETD-C is a Smart TFT Module with 32bit MCU on board. Its graphics engine provides numbers of outstanding features. It supports Display UI files preload and pre-design display interface that simplify the host operation and development time. Suitable for industry control, instrumentation, medical electronics, power electric equipment applications. General Specification Screen Size(Diagonal) : Resolution : Color Depth : Pixel Configuration : Display Mode : Viewing Direction : Outline Dimension : Active Area : Backlight : Command I/F: Project...

Open the catalog to page 3

LCD Module User Manual Terminal Function RS232 Interface Terminal (K1) Pin No. Pin Name I/O 1 2 Descriptions Power supply (11.0~26.0 V) Data Input (eg. to PC’s RS-232C pin3 <9pin D-connector>) Data output (eg. to PC’s RS-232C pin2<9pin D-connector>) Request To Send (could function as busy BUSY signal) (eg. to PC’s RS-232C pin8 <9pin D-connector>) -Ground, (0V) Note. *1. User data and commands transfer through this terminal. *2. HW hand shake is suggested. RS232 Interface Terminal (K8) Pin No. Pin Name I/O 1,2 3 Descriptions Power supply (11.0~26.0 V) Request To Send (could function as busy BUSY...

Open the catalog to page 4

LCD Module User Manual 2 Absolute Maximum Ratings Items Power Supply voltage Operating Temperature Storage Temperature Condition No Condensation No Condensation Note: *1. This rating applies to all parts of the module and should not be exceeded. *2. The operating temperature only guarantees operation of the circuit. The contrast, response speed, and the other specification related to electro-optical display quality is determined at the room temperature, TOP=25℃ *3. Ambient temperature when the backlight is lit (reference value) *4. Any Stresses exceeding the Absolute Maximum Ratings may cause...

Open the catalog to page 5

LCD Module User Manual Function Specifications Basic Operation Function Descriptions UART / Ethernet interface HMT070ETD-C TML files Picture files ICONS files Custom Memories Touch Panel VP variables Control and Draw Engine Display UI files, Picture files, ICON files are stored inside FLASH memory area. They are preloaded to HMT070ETD-C for stand alone interface use. Those files are preloaded via USB interface as an USB drive. All the interface flow and the touch response are based on the preloaded files VP variables memory is inside RAM area, it provides real time access via UART or Ethernet...

Open the catalog to page 6

LCD Module User Manual Quick Start Guide Install TOPWAY Graphics Editor Import pictures 2. design UI flow Connect to host Show 5. real time data Command Descriptions Please refer to “SMART LCD Command Manual”. www.topwaydisplay.com www.topwaysz.com Document Name: HMT070ETD-C-Manual-Rev0.1 Page: 7 of 1

Open the catalog to page 7

LCD Module User Manual 5 LCD Module Design and Handling Precautions Please ensure V0, VCOM is adjustable, to enable LCD module get the best contrast ratio under different temperatures, view angles and positions. Normally display quality should be judged under the best contrast ratio within viewable area. Unexpected display pattern may com out under abnormal contrast ratio. Never operate the LCD module exceed the absolute maximum ratings. Never apply signal to the LCD module without power supply. Keep signal line as short as possible to reduce external noise interference. IC chip (e.g. TAB or...

Open the catalog to page 8

LCD Module User Manual Protective film is attached on LCD screen. Be careful when peeling off this protective film, since static electricity may be generated. Polarizer on LCD gets scratched easily. If possible, do not remove LCD protective film until the last step of installation. When peeling off protective film from LCD, static charge may cause abnormal display pattern. The symptom is normal, and it will turn back to normal in a short while. LCD panel has sharp edges, please handle with care. Never attempt to disassemble or rework LCD module. If display panel is damaged and liquid crystal...

Open the catalog to page 9

LCD Module User Manual 6.3 Additional Cover Lens Mounting (Figure 3) - For the case of additional cover Lens mounting, it is necessary to recheck with the CTP specification about the material and thickness to ensure the functionality. - It should keep a 0.2~0.3mm gap between the cover lens and the CTP surface.. - The cover lens window should be bigger than the active area of the CTP.It should be≥0.5mm each side. - It is recommended to provide an additional support bracket for backside support when necessary (e.g. slim type TFT module without mounding structure). They should only provide appropriate...

Open the catalog to page 10

LCD Module User Manual - In general design, RTP V.A. should be bigger than the TFT V.A. and RTP A.A. should be bigger than the TFT A.A. (Figure 5) 通常设计时： RTP的可视区 V.A. 应不小于TFT 的可视区 V.A. 及RTP的动作区 A.A. 应不小于TFT 的动作区 A.A. (附图5) Warranty This product has been manufactured to our company’s specifications as a part for use in your company’s general electronic products. It is guaranteed to perform according to delivery specifications. For any other use apart from general electronic equipment, we cannot take responsibility if the product is used in medical devices, nuclear power control equipment, aerospace...

Open the catalog to page 11

SMART LCD Command V5.04 Manual Release Date - Preliminary Draft release - Add a description of the 0xE8 command - 4.1, 0xE2, 0xE3 command name correction - Add a description of the 0xE7 command www.topwaydisplay.com www.topwaysz.com Document Name:SMART LCD Command v5.04 Manual Rev0.4.doc Page: 1 of 19

Open the catalog to page 12

SMART LCD Command Manual www.topwaydisplay.com www.topwaysz.com Document Name:SMART LCD Command v5.04 Manual Rev0.4.doc Page: 2 of 19

Open the catalog to page 13

SMART LCD Command Manual 1 Basic Specifications TOPWAY Smart LCD serial command is for real-time control and access. Host machine get the data which input through the Smart LCD interface or provide the data for display. Hardware connection Smart LCD serial UART interface are mainly base on RS232-C standard, by default, config as 8N1 115200bps. Communication Packet Structure Commands and Response Packet should be format as follow (hostmodule): Seq 1 2 Code type Packet header Command code Parameter or Data Packet tail Note. *1. Unless otherwise specified, all the multi-byte values, data, address’...

Open the catalog to page 14

HMT070ETD-C

HMT070ETD-C

Catalog excerpts

All TOPWAY LCD catalogs and technical brochures