CN102411527A - Detecting method for image-processing chip, developing plate and detecting system - Google Patents
Detecting method for image-processing chip, developing plate and detecting system Download PDFInfo
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- CN102411527A CN102411527A CN201010290526XA CN201010290526A CN102411527A CN 102411527 A CN102411527 A CN 102411527A CN 201010290526X A CN201010290526X A CN 201010290526XA CN 201010290526 A CN201010290526 A CN 201010290526A CN 102411527 A CN102411527 A CN 102411527A
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- 230000000052 comparative effect Effects 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 19
- 238000004088 simulation Methods 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 description 9
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Abstract
The invention provides a detecting method for an image-processing chip, a developing plate and a detecting system, wherein the detecting method comprises the following steps of: step 1, reading the storage content of an E2PROM (Electrically Erasable Programmable Read-Only Memory) connected with the image-processing chip to be used as a first content by the developing plate; step 2, simulating the plugging-unplugging operation of a USB (Universal Serial Bus) interface by controlling the on-off of a USB data wire and a USB power-supply wire of the image-processing chip by the developing plate according to testing parameters; step 3, after simulating the plugging-unplugging operation of the USB interface, reading the storage content of the E2PROM to be used as a second content by the developing plate; and step 4, comparing the first content and the second content by the developing plate to obtain a comparison result. Through the invention, the mistaken operation for generating E2PROM rewriting can be rapidly positioned, and the technical problems that the detecting efficiency is low and the mistaken operation does not easily reoccur in the prior art are solved.
Description
Technical field
The present invention relates to the detection technique of the E2PROM of picture processing chip, particularly relate to a kind of detection method, development board and detection system of picture processing chip.
Background technology
Picture processing chip can be used E2PROM (Electrically Erasable Programmable Read-Only Memory usually; EEPROM); It is the storer that data are not lost after a kind of power down; Generally be the configuration that is used for doing some chips, flexible with the mode of E2PROM configuring chip, can conveniently change the configuration of chip.
When E2PROM protection when not being very strict, in the picture processing chip operating process, occur sometimes the E2PROM content by randomly changing, cause the phenomenon of chip cisco unity malfunction.
In order to find out E2PROM by the various operational circumstances of rewriting at random, normally manually restart chip operation, the configuration of reading chip confirms whether E2PROM changes.Inefficient operation, and problem like this is not easy reproduction.So, how to locate E2PROM fast and rewrite problem, and the convenient unit of confirming that quilt is rewritten, be that problem to be solved is arranged.。
Summary of the invention
The detection method, development board and the detection system that the purpose of this invention is to provide a kind of picture processing chip can be located fast and produced the faulty operation that E2PROM rewrites, and solve the technical matters that the prior art detection efficiency is low, faulty operation is not easy to reappear.
To achieve these goals, on the one hand, a kind of detection method of picture processing chip is provided, has comprised:
Step 1, development board read the memory contents of the E2PROM that is connected with picture processing chip, as first content;
Step 2, said development board be according to test parameter, and the usb data line through controlling said picture processing chip and the break-make of USB power lead are simulated the plug operation of USB interface;
Step 3, after the plug operation of simulation USB interface, said development board reads the memory contents of said E2PROM, as second content;
Step 4, more said first content of said development board and second content obtain comparative result.
Preferably, in the above-mentioned method, before said step 2, also comprise: said development board receives said test parameter through serial ports; After said step 4, also comprise: step 5, said development board sends said comparative result through said serial ports.
Preferably, in the above-mentioned method, said development board reads the memory contents of said E2PROM through the I2C data line; Said test parameter is the parameter of the multiple plug speed of simulation USB interface.
Preferably, in the above-mentioned method, said development board makes said I2C data line effective through the I2C control line, after confirming that said picture processing chip is not operated said E2PROM, breaks off said I2C control line.
To achieve these goals, the embodiment of the invention also provides a kind of development board that is used for the detected image process chip, comprising:
First reading unit is used for: read the memory contents of the E2PROM that is connected with picture processing chip, as first content;
Analogue unit is used for: according to test parameter, the usb data line through controlling said picture processing chip and the break-make of USB power lead are simulated the plug operation of USB interface;
Second reading unit is used for: after the plug operation of simulation USB interface, the memory contents of the said E2PROM that reads is as second content;
Comparing unit is used for: more said first content and second content obtain comparative result.
Preferably, in the above-mentioned development board, also comprise Transmit-Receive Unit, be used for: receive said test parameter through serial ports, send said comparative result through serial ports.
Preferably, in the above-mentioned development board, said development board reads the memory contents of said E2PROM through the I2C data line; Said test parameter is the parameter that can simulate the multiple plug speed of USB interface.
To achieve these goals, the embodiment of the invention also provides a kind of detection system of picture processing chip, comprising: picture processing chip, E2PROM, development board and PC;
Said picture processing chip is connected said E2PROM through the I2C data line with the I2C control line;
Said development board is used for: read the memory contents of said E2PROM through said I2C data line, as first content; According to test parameter, the usb data line through controlling said picture processing chip and the break-make of USB power lead are simulated the plug operation of USB interface; After the plug operation of simulation USB interface, read the memory contents of said E2PROM, as second content; More said first content and second content obtain comparative result;
Said PC is used for: to said development board said test parameter is provided, receives said comparative result.
There is following technique effect at least in the present invention:
1) embodiment of the invention can be simulated the multiple plug operation of USB interface through test parameter; And then definite different operation is to the influence of E2PROM; Accurate in locating goes out E2PROM by the various operational circumstances of rewriting at random rapidly, greatly improves testing efficiency;
2) test parameter can be provided with and revise through PC, and test process is operated easily, has very high dirigibility, can remedy the place that many personal monitorings can not accomplish;
3) comparative result that obtains makes the tester check conveniently whether the E2PROM content changes, and the address and the content that changes front and back that change the unit;
4) through the usb data line of the said picture processing chip of control and the break-make of USB power lead; Simulate the plug operation of USB interface, it is more accurate to change situation than E2PROM in personal monitoring's chip operation E2PROM process, more saves time; Improved monitoring efficient significantly; And method operates easily, has very high dirigibility, remedies the place that many personal monitorings can not accomplish.
Description of drawings
The flow chart of steps of the method that Fig. 1 provides for the embodiment of the invention;
The structural drawing of the development board that Fig. 2 provides for the embodiment of the invention;
The structural drawing of the detection system that Fig. 3 provides for the embodiment of the invention;
The detailed step process flow diagram of the method that Fig. 4 provides for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, will combine accompanying drawing that specific embodiment is described in detail below.
The flow chart of steps of the method that Fig. 1 provides for the embodiment of the invention, as shown in Figure 1, the detection method of picture processing chip comprises:
It is thus clear that; The embodiment of the invention can be simulated the multiple plug operation of USB interface through test parameter; And then definite different operation is to the influence of E2PROM, and accurate in locating goes out E2PROM by the various operational circumstances of rewriting at random rapidly, greatly improves testing efficiency.And operation easily, have very high dirigibility, can remedy the place that many personal monitorings can not accomplish.
Wherein, before said step 102, also comprise: said development board receives said test parameter through serial ports; After said step 104, also comprise: said development board sends said comparative result through said serial ports.
Wherein, said development board reads the memory contents of said E2PROM through the I2C data line; Said test parameter is the parameter of the multiple plug speed of simulation USB interface.Said development board makes said I2C data line effective through I2C (Inter-Integrated Circuit) control line, after confirming that said picture processing chip is not operated said E2PROM, breaks off said I2C control line.
The structural drawing of the development board that Fig. 2 provides for the embodiment of the invention.As shown in Figure 2, the development board 200 that is used for the detected image process chip comprises:
Comparing unit 204 is used for: more said first content and second content obtain comparative result.
Wherein, can also comprise Transmit-Receive Unit 205, be used for: receive said test parameter through serial ports, send said comparative result through serial ports.Said development board reads the memory contents of said E2PROM through the I2C data line; Said test parameter is the parameter that can simulate the multiple plug speed of USB interface.
The structural drawing of the detection system that Fig. 3 provides for the embodiment of the invention, as shown in Figure 3, the detection system of picture processing chip, it comprises: picture processing chip 301, E2PROM 302, development board 303 and PC 304;
Said picture processing chip 301 is connected said E2PROM 302 through I2C data line 311 with I2C control line 312;
Said development board 303 is used for: read the memory contents of said E2PROM through said I2C data line 311, as first content; According to test parameter, the usb data line 321 through controlling said picture processing chip and the break-make of USB power lead 322 are simulated the plug operation of USB interface; After the plug operation of simulation USB interface, read the memory contents of said E2PROM, as second content; More said first content and second content obtain comparative result;
Said PC 304 is used for: to said development board said test parameter is provided, receives said comparative result.
Wherein, development board (demoboard) 303 is Arm (Advanced RISC Machines) development board device, specifically is made up of Arm development board and Arm application program.On/off by Arm application program control picture processing chip; Whether the application program control E2PROM line that reads and writes data is effective, control read-write E2PROM operation, and relatively whether the E2PROM content changes; Application program prints the change information of E2PROM to PC through serial line interface.
PC (PC) 304, mutual through serial ports and Arm development board device, the output of application program is carried out and received to control Arm application program.
The embodiment of the invention is with different time intervals control USB line break-make; Make chip operation or restart; With different time intervals control I2C line, keep watch on EEPROM and when write, stop power supply control when being write; Provide the address and rewriting front and back content change of being rewritten through serial line interface, make things convenient for the debugging and the solution of E2PROM problem.
The detailed step process flow diagram of the method that Fig. 4 provides for the embodiment of the invention, as shown in Figure 4, the detailed step flow process is following:
Step 403 is accepted the control command of PC, the break-make of simulation USB line, and the E2PROM control line makes the I2C data line effective, when confirming that picture processing chip is not operated E2PROM, breaks off the control line of E2PROM.
Application program control USB power lead, usb data line break-make, simulation is with friction speed plug USB line, and the make-and-break time interval and the break-make number of times of USB power lead and data line can be provided with random change through parameter.
PC can change USB power lead in the operational process, the break-make of usb data line and I2C control line, convenient, flexible blocked operation mode through the break-make of order pilot relay.
By on can know that the embodiment of the invention has following advantage:
1) embodiment of the invention can be simulated the multiple plug operation of USB interface through test parameter; And then definite different operation is to the influence of E2PROM; Accurate in locating goes out E2PROM by the various operational circumstances of rewriting at random rapidly, greatly improves testing efficiency;
2) test parameter can be provided with and revise through PC, and test process is operated easily, has very high dirigibility, can remedy the place that many personal monitorings can not accomplish;
3) comparative result that obtains makes the tester check conveniently whether the E2PROM content changes, and the address and the content that changes front and back that change the unit;
4) through the usb data line of the said picture processing chip of control and the break-make of USB power lead; Simulate the plug operation of USB interface, it is more accurate to change situation than E2PROM in personal monitoring's chip operation E2PROM process, more saves time; Improved monitoring efficient significantly; And method operates easily, has very high dirigibility, remedies the place that many personal monitorings can not accomplish.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. the detection method of a picture processing chip is characterized in that, comprising:
Step 1, development board read the memory contents of the E2PROM that is connected with picture processing chip, as first content;
Step 2, said development board be according to test parameter, and the usb data line through controlling said picture processing chip and the break-make of USB power lead are simulated the plug operation of USB interface;
Step 3, after the plug operation of simulation USB interface, said development board reads the memory contents of said E2PROM, as second content;
Step 4, more said first content of said development board and said second content obtain comparative result.
2. detection method according to claim 1 is characterized in that, before said step 2, also comprise: said development board receives said test parameter through serial ports; After said step 4, also comprise: step 5, said development board sends said comparative result through said serial ports.
3. detection method according to claim 1 and 2 is characterized in that, said development board reads the memory contents of said E2PROM through the I2C data line; Said test parameter is the parameter of the multiple plug speed of simulation USB interface.
4. detection method according to claim 3 is characterized in that, said development board makes said I2C data line effective through the I2C control line, after confirming that said picture processing chip is not operated said E2PROM, breaks off said I2C control line.
5. a development board that is used for the detected image process chip is characterized in that, comprising:
First reading unit is used for: read the memory contents of the E2PROM that is connected with picture processing chip, as first content;
Analogue unit is used for: according to test parameter, the usb data line through controlling said picture processing chip and the break-make of USB power lead are simulated the plug operation of USB interface;
Second reading unit is used for: after the plug operation of simulation USB interface, the memory contents of the said E2PROM that reads is as second content;
Comparing unit is used for: more said first content and said second content obtain comparative result.
6. development board according to claim 5 is characterized in that, also comprises being used for Transmit-Receive Unit: receive said test parameter through serial ports, send said comparative result through serial ports.
7. development board according to claim 5 is characterized in that, said development board reads the memory contents of said E2PROM through the I2C data line; Said test parameter is the parameter that can simulate the multiple plug speed of USB interface.
8. the detection system of a picture processing chip is characterized in that, comprising: picture processing chip, E2PROM, development board and PC;
Said picture processing chip is connected said E2PROM through the I2C data line with the I2C control line;
Said development board is used for: read the memory contents of said E2PROM through said I2C data line, as first content; According to test parameter, the usb data line through controlling said picture processing chip and the break-make of USB power lead are simulated the plug operation of USB interface; After the plug operation of simulation USB interface, read the memory contents of said E2PROM, as second content; More said first content and said second content obtain comparative result;
Said PC is used for: to said development board said test parameter is provided, receives said comparative result.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010290526.XA CN102411527B (en) | 2010-09-21 | 2010-09-21 | Detecting method for image-processing chip, developing plate and detecting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010290526.XA CN102411527B (en) | 2010-09-21 | 2010-09-21 | Detecting method for image-processing chip, developing plate and detecting system |
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| CN102411527A true CN102411527A (en) | 2012-04-11 |
| CN102411527B CN102411527B (en) | 2015-01-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104077250A (en) * | 2014-06-27 | 2014-10-01 | Tcl集团股份有限公司 | Connection processing method and device for intelligent terminal and storage equipment |
| CN109359079A (en) * | 2018-10-16 | 2019-02-19 | 福建实达电脑设备有限公司 | A kind of the simulation pull-plug device and method of automatic maintenance USB connection |
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| US20030023771A1 (en) * | 2001-07-30 | 2003-01-30 | Erickson Michael John | Method for accessing scan chains and updating EEPROM-resident FPGA code through a system mangement processor and JTAG bus |
| CN1553327A (en) * | 2003-05-30 | 2004-12-08 | 上海华园微电子技术有限公司 | Circuit for testing EEPROM and testing method thereof |
| CN2783391Y (en) * | 2004-02-09 | 2006-05-24 | 联想(北京)有限公司 | Plug-pull free multi-state USB device |
| CN101727989A (en) * | 2008-10-16 | 2010-06-09 | 付建云 | NAND FLASH memory chip test system |
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Patent Citations (5)
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| EP0449242A2 (en) * | 1990-03-28 | 1991-10-02 | National Semiconductor Corporation | Method and structure for providing computer security and virus prevention |
| US20030023771A1 (en) * | 2001-07-30 | 2003-01-30 | Erickson Michael John | Method for accessing scan chains and updating EEPROM-resident FPGA code through a system mangement processor and JTAG bus |
| CN1553327A (en) * | 2003-05-30 | 2004-12-08 | 上海华园微电子技术有限公司 | Circuit for testing EEPROM and testing method thereof |
| CN2783391Y (en) * | 2004-02-09 | 2006-05-24 | 联想(北京)有限公司 | Plug-pull free multi-state USB device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104077250A (en) * | 2014-06-27 | 2014-10-01 | Tcl集团股份有限公司 | Connection processing method and device for intelligent terminal and storage equipment |
| CN109359079A (en) * | 2018-10-16 | 2019-02-19 | 福建实达电脑设备有限公司 | A kind of the simulation pull-plug device and method of automatic maintenance USB connection |
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| Publication number | Publication date |
|---|---|
| CN102411527B (en) | 2015-01-21 |
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Effective date of registration: 20170526 Address after: 030032 Shanxi province Taiyuan Dachang economic and Technological Development Zone g.credit Industrial Park Road No. 13 Patentee after: SHANXI ZHONGTIANXIN SCIENCE AND TECHNOLOGY CO.,LTD. Address before: 100083, Haidian District, Xueyuan Road, Beijing No. 35, Nanjing Ning building, 15 Floor Patentee before: VIMICRO Corp. |
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Address after: 030000 Zhongxing Technology Industrial Park, No.13, Dachang South Road, Taiyuan Tanghuai Park, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: Zhongxing Intelligent System Technology Co.,Ltd. Address before: 030000 zhongtianxin Industrial Park, No.13, Dachang South Road, Shanxi demonstration zone, Taiyuan City, Shanxi Province Patentee before: Shanxi zhongtianxin Technology Co.,Ltd. Address after: 030000 zhongtianxin Industrial Park, No.13, Dachang South Road, Shanxi demonstration zone, Taiyuan City, Shanxi Province Patentee after: Shanxi zhongtianxin Technology Co.,Ltd. Address before: 030032 Shanxi province Taiyuan Dachang economic and Technological Development Zone g.credit Industrial Park Road No. 13 Patentee before: SHANXI ZHONGTIANXIN SCIENCE AND TECHNOLOGY Co.,Ltd. |