CN201107378Y

CN201107378Y - LCD module debugging apparatus

Info

Publication number: CN201107378Y
Application number: CNU2007201984037U
Authority: CN
Inventors: 朱琪
Original assignee: Shanghai Simcom Ltd
Current assignee: Shanghai Simcom Ltd
Priority date: 2007-11-27
Filing date: 2007-11-27
Publication date: 2008-08-27
Anticipated expiration: 2017-11-27

Abstract

The utility model provides a LCM debugging device, which takes a microprocessor as the center, and includes eight modules which are all connected with the microprocessor at the periphery. The eight modules respectively are as follows: a, a human-machine interface used for outputting debugging information; b, a FLASH used for storage debugging flow chart; c, an internal storage system used for software running; d, a voltage sampling circuit; e, a keyboard input matrix; f, a mode selected circuit; g, a E2PROM for storage of register value; h, a debugged LCM; wherein, the human-machine interface, the FLASH, the internal storage system and the debugged LCM share a data highway and an address bus; the keyboard input matrix occupies eight GPIO ports and a external discontinuity; the mode selected circuit occupies three GPIO ports; the E2PROM is connected with the microprocessor through a I <2> C highway; the voltage sampling circuit is connected with a AD port of the microprocessor. The debugging device forms a system provided with perfect input and output, each production process can reduce or add the software part according to requirements thereof, can satisfy requirements of three production processes of the design and development, quality and detecting.

Description

The LCD MODULE debugging apparatus

Technical field

The utility model relates to a kind of LCM (LCD MODULE) debugging apparatus, and it can satisfy LCM software engineer, Hardware Engineer, quality engineer, the product lineman people different operating to LCM simultaneously.

Background technology

In the LCM trial-manufacturing process, the software engineer need constantly debug the LCM display effect by frock, and the quality engineer need test circuit characteristic and the mechanical property of LCM by frock, and also needs a kind of frock as detecting LCM in process of production.

Specifically, the LCM software engineer debugs the process of LCM, revises the value of chip for driving register exactly again and again by frock, in order to debug whole display effect, a plurality of registers need be set, and so just needs a large amount of burning work repeatedly.And aspect quality, the quality engineer need do the experiment (as the consumption current test) of some routines by frock but utilize existing frock, also must just can finish experiment with the such aid of multimeter.

The utility model content

The utility model provides a kind of LCM debugging apparatus, its can satisfy simultaneously design and develop, the demand of quality, 3 production links of detection.

The purpose of this utility model is achieved through the following technical solutions:

A kind of LCM debugging apparatus, its characteristics are that it is the center with the microprocessor, and the periphery comprises 8 modules that all link to each other with this microprocessor, is respectively: the man-machine interface of a, output Debugging message; The FLASH (flash memory) of b, storage debugging flow process picture; The memory system of c, running software; D, voltage sampling circuit; E, keyboard input matrix; F, mode selection circuit; The E2PROM of g, register value stored (Electrically Erasable Read Only Memory); H, debugged LCM; Wherein, this man-machine interface, FLASH, memory system and debugged LCM common data bus and address bus; This keyboard input matrix takies 8 GPIO (general input and output) mouthfuls and an external interrupt; This mode selection circuit takies 3 GPIO mouths; This E2PROM uses I ²C (Inter-Integrated Circuit, twin wire universal serial bus are used to connect microcontroller and peripherals thereof) bus is connected with microprocessor; This voltage sampling circuit is connected with AD (analog to digital conversion) interface of microprocessor.

Wherein, this mode selection circuit is 3 toggle switches, respectively corresponding " debugging ", " test ", " production " 3 kinds of mode of operations.

Wherein, this keyboard input matrix comprises 16 key assignments, is respectively " 0～9 " value key, " upper and lower, left and right " directionkeys, and " confirm, cancel " function key.

Positive progressive effect of the present utility model is:

1, this debugging apparatus forms a system that has perfect input and output, by self program the value of register is set, and has the function of test consumption stream, and each production link can be reduced or adds the software and hardware part according to self needs;

2, this debugging apparatus can satisfy simultaneously and designs and develops, quality, detects the demand of these 3 production links, and the scope of application is extensive, enhances productivity.

Description of drawings

Fig. 1 is the structural representation of the utility model preferred embodiment.

Fig. 2 is the workflow diagram of the utility model preferred embodiment.

Embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.

One, the composition of this LCM debugging apparatus and each several part function

As shown in Figure 1, the microprocessor in this device is selected the ARM7 series microprocessor of ARM company.The hardware of this system is made up of 8 separate circuit parts, is the center with ARM7 (mark 1 among the figure), its outer being with: the man-machine interface 2 of output Debugging message; The FLASH3 (flash memory) of storage debugging flow process picture; The memory system of running software, this memory system adopts synchronous DRAM 4 in the present embodiment; Voltage sampling circuit 5; Keyboard input matrix 6; Mode selection circuit 7; The E2PROM8 of register value stored (Electrically Erasable Read Only Memory); Debugged LCM9.The relation of these 8 parts and ARM7 as shown in Figure 1.

Wherein, all common data bus and address bus of man-machine interface 2, FLASH3, memory system 4, debugged LCM 9; Keyboard input matrix 6 takies 8 GPIO (general input and output) mouthfuls and an external interrupt; Mode selection circuit 7 takies 3 GPIO mouths; The screen specification selects circuit to take 3 GPIO mouths; The highway width of debugging LCM selects circuit to take 2 GPIO mouths; E2PROM8 uses I ²The C bus is connected with ARM7; Voltage sampling circuit 5 is connected with AD (analog to digital conversion) interface of ARM7.

Man-machine interface 2 is as showing Debugging message, as input parameter, test parameter; Various test pictorial informations of FLSAH chip-stored and executive routine.Keyboard input matrix 6 comprises 16 key assignments, is respectively " 0～9 " value key, " upper and lower, left and right " directionkeys, and " confirm, cancel " function key.Mode selection circuit 7 essence are 3 toggle switches, respectively corresponding " debugging ", " test ", " production " 3 kinds of mode of operations.It also is 3 toggle switches that the screen specification is selected circuit, by combination to these 3 toggle switches, and difference corresponding QQVGA, QCIF, QVGA, LQVGA, these several different display modes of WQVGA, the result of setting can be presented on the man-machine interface 2.The highway width selection circuit of debugging LCM also is the combination to 2 toggle switches, the data bus of corresponding 8-bit, 9-bit, 16-bit, 18-bit respectively.The end value of all registers that need debug of storage in the E2PROM8 by the value of keyboard input, can deposit in the corresponding register, and these values can all be read out before the initialization to LCM, with doing that LCM is carried out initialization.Voltage sampling circuit 5 converts electric current to magnitude of voltage by power resistor as the consumption stream of test LCM, obtains magnitude of voltage by the AD interface of ARM7 then, and magnitude of voltage is converted to current value by computing.

Two, the workflow of this LCM debugging apparatus

As shown in Figure 2.Before entering three kinds of different mode of operations, carry out following several steps.

Step 101 powers on;

Step 102, read mode option interface circuit enters following three kinds of patterns respectively according to the information that reads: debugging mode 103a2, test pattern 103b3, production model 103c.

Afterwards, list respectively under these 3 kinds of patterns, wherein need the support of man-machine interface under debugging mode 103a and the test pattern 103b the use content of test fixture.

1, debugging mode 103a

A, read LCM type selecting interface circuit, on human-computer interaction interface, show the LCM information that reads: resolution and drive IC.

B, wait to debug LCM and go up to show a width of cloth picture.

C, man-machine interface show debugging option.

C1., power parameter is set

VCOM mainly is set, VCOMH and VREGOUT value.Selection enters the back and preserves and return by definite by keyboard input corresponding registers address and value back.

C2. backlight mode is selected

PWM (Pulse Width Modulation, pulse-length modulation) pattern or pulse mode.Enter drive current adjustment after the preference pattern, by the electric current that the keyboard input needs, the acquiescence electric current is 15mAh.Enter next flow process by determining to return.

C3. colourity (GAMMA parameter) debugging

Preserve and return by definite by keyboard input corresponding registers address and value back.

C4. show and be provided with

Comprise display direction (up and down, about), RGB DISPLAY ORDER, 65K/262K look model selection etc.Preserve and return by definite by keyboard input corresponding registers address and value back.

C5. touch-screen debugging

Import four groups of X and Y direction respective resistivity values by keyboard, by determining preservation and returning.

C6. determine and debugging

Select behind this option LCM to be debugged to restart and show once more and after determining, enter testing touch screen by a width of cloth picture, showing 4 wire frames up and down near bezel locations respectively, all paint the back and return the debugging master menu by finishing.Proceed debugging after observing image quality and display effect and touch screen drift situation.

2, test pattern

B, test LCM go up Show Options:

B1. color: show successively after entering red, green, indigo plant, black, white, return behind the black and white lattice.

B2. picture: return after showing two width of cloth pictures.

B3. touch-screen: showing 4 wire frames up and down near bezel locations respectively, all painting the back and return by finishing.

C, man-machine interface Show Options:

C1. power consumption: show current LCM power consumption number, return by determining.

C2. debugging backlight: at first select backlight mode, PWM pattern or pulse mode.Enter the drive current adjustment link after the preference pattern, by the current value that the keyboard input needs, the acquiescence electric current is 15mAh.

3, production model

Test LCM goes up and shows:

A. color: show successively after entering red, green, indigo plant, black, white, return behind the black and white lattice.

B. picture: return after showing two width of cloth pictures.

C. touch-screen: showing 4 wire frames up and down near bezel locations respectively, all painting the back and return by finishing.

D. backlight illumination: regulate current LCM backlight illumination with key up and down, return by confirming.

E. power consumption: show current LCM power consumption number, after determining, return.

Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these embodiments.Therefore, protection domain of the present utility model is limited by appended claims.

Claims

1, a kind of LCD MODULE debugging apparatus is characterized in that, it is the center with the microprocessor, and the periphery comprises 8 modules that all link to each other with this microprocessor, is respectively: the man-machine interface of a, output Debugging message; The flash memory of b, storage debugging flow process picture; The memory system of c, running software; D, voltage sampling circuit; E, keyboard input matrix; F, mode selection circuit; The Electrically Erasable Read Only Memory of g, register value stored; H, debugged LCD MODULE;

Wherein, this man-machine interface, flash memory, memory system and debugged LCD MODULE common data bus and address bus; This keyboard input matrix takies 8 general input/output ports and an external interrupt; This mode selection circuit takies 3 general input/output ports; This Electrically Erasable Read Only Memory uses I ²The C bus is connected with microprocessor; This voltage sampling circuit is connected with the analog to digital conversion interface of microprocessor.

2, LCD MODULE debugging apparatus according to claim 1 is characterized in that, this mode selection circuit is 3 toggle switches, respectively corresponding " debugging ", " test ", " production " 3 kinds of mode of operations.

3, LCD MODULE debugging apparatus according to claim 1 and 2 is characterized in that, this keyboard input matrix comprises 16 key assignments, is respectively " 0～9 " value key, " upper and lower, left and right " directionkeys, and " confirm, cancel " function key.