CN104636166A - NandFlash firmware programmer and programming method - Google Patents
NandFlash firmware programmer and programming method Download PDFInfo
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- CN104636166A CN104636166A CN201510062818.0A CN201510062818A CN104636166A CN 104636166 A CN104636166 A CN 104636166A CN 201510062818 A CN201510062818 A CN 201510062818A CN 104636166 A CN104636166 A CN 104636166A
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Abstract
The invention relates to a NandFlash firmware programmer and a programming method. The NandFlash firmware programmer and the programming method are used for conducting firmware batch programming on a NandFlash chip in the production process. The programmer comprises a main module and N sub modules. The main module comprises a first CPU, a first SDRAM, a NandFlash, a first NorFlash, a liquid crystal display (LED), a USB 2.0 interface circuit, a USB 1.0 interface circuit, a MINI-USB interface circuit and a first serial interface circuit, wherein the first SDRAM, the NandFlash, the first NorFlash, the liquid crystal display (LED), the USB2.0 interface circuit, the USB 1.0 interface circuit, the MINI-USB interface circuit and the first serial interface circuit are connected with the first CPU. Each sub module comprises a second CPU, a second SDRAM, a second NorFlash, a USB interface circuit, a second serial interface circuit, an LED indicator light and an SOCKET, wherein the second SDRAM, the second NorFlash, the USB interface circuit, the second serial interface circuit, the LED indicator light and the SOCKET are connected with the second CPU. The USB 2.0 interface circuit is connected with the USB interface circuit through a USB HUB device. The NandFlash firmware programmer and the programming method aim to achieve direct chip programming of the NandFlash, support using of multiple kinds of chip programming schemes and achieve file system mounting of NandFlash partition.
Description
Technical field
The present invention relates to Device Programming technical field, particularly based on Linux platform, relate to the erasable control to MTD equipment (memory technology device memory techniques equipment), fill under the firmware mainly for the production of NandFlash chip in enormous quantities in process.
Background technology
Current most of electronic products all adopts NandFlash as memory device.Therefore need to carry out firmware prepackage to NandFlash, and the lower dress method of tradition is welded to by NandFlash on mainboard and turns to be made into complete machine, recycling PC uses Samba software to carry out ISP(In System Program in-system programming to the complete machine assembled) fill under firmware, because the bad block in NandFlash is stochastic distribution, before lower dress, carry out bad cannot block scan to chip.If find when filling under complete machine that chip belongs to defective products, then need chip to blow down again to weld new chip, operation is numerous and diverse and lower dress firmware is comparatively large, and process is very consuming time.Therefore need to invent the NandFlash of a kind of cd-rom recorder to batch to enhance productivity and carry out prepackage firmware.Refer to Fig. 1, the basic preparation of cd-rom recorder on the market is now: PC, a programmable device and the drive software supporting with programmable device.And the SOCKET(of a cd-rom recorder is used for inserting the stand of pending element) not only the number of chips of burning is limited and be consumables, can only by complete machine depot repair if damage, and it is also higher to the requirement of operating personnel, so invention one can not connect computer energy independent work, simple to operate, and can seem day by day urgent by the cd-rom recorder of the numerous individual module of requirements extend.
Summary of the invention
The object of the invention is to realize direct chip programming to NandFlash, and support to use various chips programming scheme, what realize NandFlash subregion is file system mounted.Adopt modular design simultaneously, be convenient to administer and maintain.
The present invention adopts following scheme to realize: a kind of NandFlash firmware burning device, for carrying out firmware batch burning to NandFlash chip in process of production, it is characterized in that: this NandFlash firmware burning device comprises primary module and N number of submodule based on Linux file system; Wherein N be not less than 1 natural number;
Described primary module comprise a CPU and be connected with a CPU a SDRAM, NandFlash, NorFlash, LCD liquid crystal display, USB2.0 interface circuit, USB1.0 interface circuit, MINI_USB interface circuit and first serial circuit;
The 2nd SDRAM, the 2nd NorFlash, usb circuit, second serial circuit, LED light and SOCKET socket that described submodule comprises the 2nd CPU and is connected with the 2nd CPU; Described USB2.0 interface circuit is connected with described usb circuit through USB HUB equipment.
Further, described first serial circuit has five serial ports.
The present invention separately provides a kind of method for burn-recording of above-mentioned NandFlash firmware burning device, it is characterized in that comprising the following steps:
S01: whether primary module detects automatically has USB flash disk to insert, if do not enter S03, otherwise detects whether there is latest firmware, if do not enter S03, otherwise enters S02;
S02: carry out firmware renewal, simultaneously LCD liquid crystal display upgrades process, upgrades completely to enter S03;
S03: whether primary module is started shooting by USB detection sub-module;
S04: start shooting when there being submodule, then whether detection sub-module firmware is up-to-date, if enter S05, otherwise primary module is upgraded automatically by USB antithetical phrase module firmware, simultaneously primary module LCD liquid crystal display upgrades process, and after renewal, submodule is restarted and standbyly entered S05;
S05: whether submodule detects burning/recording chip exists, if existed, enters S06, otherwise notice primary module chip is not in place, and is shown by LCD;
S06: primary module notice burns sheet;
S07: submodule starts to burn sheet, primary module LCD liquid crystal display progress displaying;
S08: burn sheet and complete acquisition result.
Further, this NandFlash firmware burning device is based on Linux file system, burns in sheet process, and submodule can automatically load and resolve configuration file, and according to the configuration information of configuration file, performs corresponding burning sheet scheme to corresponding file.
Further, described burning sheet scheme comprises:
Scheme 1: open MTD character device, is written on corresponding address by firmware;
Scheme 2: MTD block device is mounted to file, unzips to carry path by compressed package afterwards, and after completing, verification All Files, finally unloads block device;
Scheme 3: MTD block device is mounted to file, reads Shell processing scripts default in configuration file and performs, unloading block device after completing.
Further, burning sheet Row control and burning sheet operation execution are divided into two parts, and primary module carries out burning sheet Row control, and submodule performs according to the order of primary module and burns sheet operation, each submodule independent operating.
The object of the invention is to realize the programming of large batch of NandFlash direct chip, and break away from PC independent work, simple to operate and can by the cd-rom recorder of the numerous individual module of requirements extend, primary module and submodule are completely independent in hardware design, primary module only to be powered to submodule by USB and is communicated, and comparing traditional cd-rom recorder has following advantage:
1, the direct programming to NandFlash chip is realized;
2, use chip carrier directly to carry out programming to chip, do not need to download chip on board again after being assembled into complete machine, save the workload using in the past and fill under ISP mode.Before welding, underproof NandFlash chip can be screened out, to ensure that each chip be welded on plate can normally use simultaneously;
3, break away from PC independent work, primary module to be powered to submodule by USB and data communication wiring simple, easy left-hand seat;
4, the present invention adopts modular design, can expand numerous submodule thus increase and can burn sheet quantity, and between each submodule, independent work does not interfere with each other, and is convenient to the upgrade maintenance of software and hardware such as by Hub:
(1) if in use certain submodule breaks down, can directly use new module to replace, and not need to carry out maintenance overhaul to complete machine, and adopt detachable SOCKET stand to be easy to change;
(2) in use may need certain chips to be performed specific programming operation temporarily, only need the firm file of certain submodule to upgrade separately, and do not need to upgrade complete machine, greatly reduce workload;
(3) each module independent operating shields mutual interference problem, ensure that burning tablet quality;
Directly carry out erasable to chip, do not need to download chip on board again after being assembled into complete machine, save the workload using in the past and fill under ISP mode.Before welding, underproof NandFlash chip can be screened out, to ensure that each chip be welded on plate can normally use simultaneously.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of traditional firmware burning device.
Fig. 2 is the structure principle chart of the embodiment of the present invention.
Fig. 3 is the software control flow chart of the embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here to implement with multiple, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention.Therefore the present invention is not by the restriction of following public embodiment.
The cd-rom recorder of the present embodiment is the NandFlash firmware burning device based on Linux file system, for carrying out firmware batch burning to NandFlash chip in process of production.It controls prolongable multiple submodule by a primary module and carries out burning sheet, and method for burn-recording is based on Linux file system, and burning sheet flow process is completely customizable.
As shown in Figure 2, the present invention adopts modularized design scheme.This NandFlash firmware burning device, for carrying out firmware batch burning to NandFlash chip in process of production, it comprises primary module and N number of submodule; Wherein N be not less than 1 natural number; Described primary module comprise a CPU and be connected with a CPU a SDRAM, NandFlash, NorFlash, LCD liquid crystal display, USB2.0 interface circuit, USB1.0 interface circuit, MINI_USB interface circuit and first serial circuit; The 2nd SDRAM, the 2nd NorFlash, usb circuit, second serial circuit, LED light and SOCKET socket that described submodule comprises the 2nd CPU and is connected with the 2nd CPU; Described USB2.0 interface circuit is connected with described usb circuit through USB HUB equipment.
Preferably, described first serial circuit has five serial ports.
Concrete, the major function of primary module of the present invention manages each submodule and controls, and checks the burning sheet bag version of each submodule, and monitor the running status of each submodule in real time, and status information be presented on liquid crystal display.Each submodule is completely independently in hardware design, only uses USB to communicate with primary module.Software for Design aspect, primary module each submodule corresponding all adopts independent thread to process, and is independent of each other between each thread.Its method for burn-recording comprises following flow process: S01: whether primary module detects automatically has USB flash disk to insert, if do not enter S03, otherwise detects whether there is latest firmware, if do not enter S03, otherwise enters S02; S02: carry out firmware renewal, simultaneously LCD liquid crystal display upgrades process, upgrades completely to enter S03; S03: whether primary module is started shooting by USB detection sub-module; S04: start shooting when there being submodule, then whether detection sub-module firmware is up-to-date, if enter S05, otherwise primary module is upgraded automatically by USB antithetical phrase module firmware, simultaneously primary module LCD liquid crystal display upgrades process, and after renewal, submodule is restarted and standbyly entered S05; S05: whether submodule detects burning/recording chip exists, if existed, enters S06, otherwise notice primary module chip is not in place, and is shown by LCD; S06: primary module notice burns sheet; S07: submodule starts to burn sheet, primary module LCD liquid crystal display progress displaying; S08: burn sheet and complete acquisition result.
Concrete, as shown in Figure 3, need to carry out the renewal of firm file bag before burning sheet.First the USB flash disk having firm file bag is received primary module USB2.0 interface, primary module can check the version of this firm file bag, if version is different, then by firm file packet replication to the NandFlash of primary module to upgrade backup.
After primary module completes and burns the renewal of sheet bag, open the power supply of all submodules, primary module can inquire about the burning sheet bag version of each submodule, if version is different, backup can be burnt sheet bag is issued to correspondence submodule by USB by primary module automatically.It is inner that burning sheet bag can be kept at SD card by submodule, and after completing transmission, submodule starts to unpack burning sheet bag, and carries out SHA verification to each file after unpacking, and after completing, namely submodule completes renewal.Because each submodule is all independent operating, so renewal rewards theory carries out simultaneously.Complete submodule automatic shutdown after upgrading.
When carrying out the operation of burning sheet, first the NandFlash chip of sky being put on chip carrier (SOCKET socket), opening corresponding submodule power supply.After starting, primary module can check the burning sheet version information of submodule, confirm correctly, submodule can load the configuration file burning and obtain when sheet bag unpacks automatically, and by the programming scheme that each firmware file is arranged according to configuration file, programming is in the corresponding address of the corresponding subregion of NandFlash.After completing, submodule can notify that primary module burns sheet result, and automatic shutdown.Burning sheet result is shown on liquid crystal display by primary module simultaneously.
Burn in sheet process, submodule can automatically load and resolve configuration file, and according to the configuration information of configuration file, performs corresponding burning sheet scheme to corresponding file.
Scheme 1: open MTD character device, is written on corresponding address by firmware;
Scheme 2: MTD block device is mounted to file, unzips to carry path by compressed package afterwards, and after completing, verification All Files, finally unloads block device;
Scheme 3: MTD block device is mounted to file, reads Shell processing scripts default in configuration file and performs, unloading block device after completing;
In sum, feature of the present invention is, supports to use various chips programming scheme.Can the chip-count of simultaneously programming determine according to the submodule number of carry, and pass through the expansion of USB HUB equipment, in theory can carry more than 100 submodules.And corresponding single submodule, the design of software and hardware all takes modularized processing, ensures the independence that each submodule runs, thus avoid the mutual interference between submodule.
On the other hand, by arranging configuration file, can control the programming processing mode of all firmwares, can meet all demands of producing at present, under eliminating in the past numerous and diverse serial ports, dress operates.And support in configuration file to use Shell script to carry out special processing, can complete all under Linux terminal all tasks manageable, this function has very strong practicality.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solution of the present invention; therefore; every content not departing from technical solution of the present invention; the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the protection domain of technical solution of the present invention.The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (6)
1. a NandFlash firmware burning device, for carrying out firmware batch burning to NandFlash chip in process of production, is characterized in that: this NandFlash firmware burning device is based on Linux file system, comprises primary module and N number of submodule;
Described primary module comprise a CPU and be connected with a CPU a SDRAM, NandFlash, NorFlash, LCD liquid crystal display, USB2.0 interface circuit, USB1.0 interface circuit, MINI_USB interface circuit and first serial circuit;
The 2nd SDRAM, the 2nd NorFlash, usb circuit, second serial circuit, LED light and SOCKET socket that described submodule comprises the 2nd CPU and is connected with the 2nd CPU; Described USB2.0 interface circuit is connected with described usb circuit through USB HUB equipment.
2. NandFlash firmware burning device according to claim 1, is characterized in that: described first serial circuit has five serial ports.
3. a method for burn-recording for NandFlash firmware burning device as claimed in claim 1, is characterized in that comprising the following steps:
S01: whether primary module detects automatically has USB flash disk to insert, if do not enter S03, otherwise detects whether there is latest firmware, if do not enter S03, otherwise enters S02;
S02: carry out firmware renewal, simultaneously LCD liquid crystal display display update process, upgrade and completely enter S03;
S03: whether primary module is started shooting by USB detection sub-module;
S04: start shooting when there being submodule, then whether detection sub-module firmware is up-to-date, if enter S05, otherwise primary module is upgraded automatically by USB antithetical phrase module firmware, simultaneously primary module LCD liquid crystal display display update process, after renewal, submodule is restarted and is standbyly entered S05;
S05: whether submodule detects burning/recording chip exists, if existed, enters S06, otherwise notice primary module chip is not in place, and is shown by LCD;
S06: primary module notice burns sheet;
S07: submodule starts to burn sheet, primary module LCD liquid crystal display progress displaying;
S08: burn sheet and complete acquisition result.
4. the method for burn-recording of NandFlash firmware burning device according to claim 3, it is characterized in that: this NandFlash firmware burning device is based on Linux file system, burn in sheet process, submodule can automatically load and resolve configuration file, and according to the configuration information of configuration file, corresponding burning sheet scheme is performed to corresponding file.
5. the method for burn-recording of NandFlash firmware burning device according to claim 4, is characterized in that: described burning sheet scheme comprises:
Scheme 1: open MTD character device, is written on corresponding address by firmware;
Scheme 2: MTD block device is mounted to file, unzips to carry path by compressed package afterwards, and after completing, verification All Files, finally unloads block device;
Scheme 3: MTD block device is mounted to file, reads Shell processing scripts default in configuration file and performs, unloading block device after completing.
6. the method for burn-recording of NandFlash firmware burning device according to claim 5, it is characterized in that: burning sheet Row control and burning sheet operation execution are divided into two parts, primary module carries out burning sheet Row control, submodule performs according to the order of primary module and burns sheet operation, each submodule independent operating.
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| CN201510062818.0A CN104636166B (en) | 2015-02-06 | 2015-02-06 | A kind of NandFlash firmware burnings device and method for burn-recording |
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| CN201510062818.0A CN104636166B (en) | 2015-02-06 | 2015-02-06 | A kind of NandFlash firmware burnings device and method for burn-recording |
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| CN106445737A (en) * | 2016-09-12 | 2017-02-22 | 恒为科技（上海）股份有限公司 | Multi-backup starting method |
| CN106951277A (en) * | 2017-02-15 | 2017-07-14 | 青岛亿联客信息技术有限公司 | Multi-chip firmware program updating method and multi-chip firmware program updating system |
| CN108205444A (en) * | 2017-12-21 | 2018-06-26 | 帝晶光电（深圳）有限公司 | A kind of efficient CTP burning programs test processes system |
| CN108334453A (en) * | 2018-02-28 | 2018-07-27 | 深圳创维数字技术有限公司 | A kind of file adjustment method, device, terminal device and storage medium |
| CN108848120A (en) * | 2018-05-02 | 2018-11-20 | 深圳创维－Rgb电子有限公司 | A kind of system and implementation method of smart television mainboard software batch upgrade |
| CN109564506A (en) * | 2016-04-11 | 2019-04-02 | 江森自控消防有限合伙公司 | The fire detection system updated with automated firmware |
| CN109783116A (en) * | 2019-01-15 | 2019-05-21 | 宁波锦浪新能源科技股份有限公司 | A kind of portable DSP cd-rom recorder based on serial ports |
| CN113641367A (en) * | 2021-08-06 | 2021-11-12 | 瑞芯微电子股份有限公司 | Firmware batch burning method and terminal |
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| CN109783116A (en) * | 2019-01-15 | 2019-05-21 | 宁波锦浪新能源科技股份有限公司 | A kind of portable DSP cd-rom recorder based on serial ports |
| CN113641367A (en) * | 2021-08-06 | 2021-11-12 | 瑞芯微电子股份有限公司 | Firmware batch burning method and terminal |
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