CN105760266A - Mobile device capacity detecting method based on Nand Flash - Google Patents
Mobile device capacity detecting method based on Nand Flash Download PDFInfo
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- CN105760266A CN105760266A CN201610101770.4A CN201610101770A CN105760266A CN 105760266 A CN105760266 A CN 105760266A CN 201610101770 A CN201610101770 A CN 201610101770A CN 105760266 A CN105760266 A CN 105760266A
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- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
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Abstract
The invention discloses a mobile device capacity detecting method based on Nand Flash.The method comprises the steps that when mobile devices are subjected to mass production, physical parameters of Nand Flash memories are detected and written in specific positions in the Nand Flash memories; after the mobile devices are powered on, the number of the successfully connected Nand Flash memories is acquired; the physical parameters of the Nand Flash memories are read from the specific positions, and the effective capacity of the mobile devices is obtained by means of calculation through the physical parameters of the Nand Flash memories and the number of the Nand Flash memories.According to the method, the effective capacity of the mobile devices is accurately detected in the mass production process, and the aim of normal production is achieved.
Description
Technical field
The present invention relates to mobile technical field of memory, particularly relate to a kind of mobile place capacity detection method based on NandFlash internal memory.
Background technology
At present, along with popularizing of various mobile electronic devices, USB flash disk, SD/TFLASH card, eMMC, UFS or even SSD etc. are various gets more and more as the movable storage device of storage medium based on NandFlash, and application is more and more extensive, and then causes that the capacity of demand is also being significantly increased.The method lifting up high power capacity on the basis of existing NandFlash model is that the NandFlash of multi-disc same model carries out the connection of similar series, parallel, thus reaching to significantly improve the purpose of capacity.
NandFlash is a kind of Flash internal memory, and the NandFlash of the multi-disc of connection, owing to being being welded to connect of physics, sometimes there will be rosin joint unavoidably or is the phenomenons such as oxidation sealing-off, causes the actually non-existent phenomenon that do not go wrong outwardly；And some NandFlash itself are likely to also defective in quality, also cannot normally use even if can cause that welding has connected.So can cause that NandFlash is unable to reach normal production, so how mobile place capacity is detected, so can find out the mobile equipment of incorrect capacity on the basis of capacity check, such that it is able to reach the purpose of normal production, be problem demanding prompt solution.
Summary of the invention
It is an object of the invention to provide a kind of mobile place capacity detection method based on NandFlash internal memory, during to realize volume production, accurately detect the effective capacity of mobile equipment, reach the purpose of normal production.
For solving above-mentioned technical problem, the present invention provides a kind of mobile place capacity detection method based on NandFlash internal memory, and the method includes:
The physical parameter of detection NandFlash internal memory when mobile equipment volume production, and it is written to the appointment position in NandFlash internal memory；
The quantity of the NandFlash internal memory being successfully connected is obtained on the mobile apparatus after electricity；
From the physical parameter specifying position to read out NandFlash internal memory, the physical parameter of NandFlash internal memory and the quantity of NandFlash internal memory is utilized to calculate the available capacity obtaining mobile equipment.
Preferably, the described physical parameter of detection NandFlash internal memory when mobile equipment volume production, and it is written to the appointment position in NandFlash internal memory, including:
The ID of detection NandFlash internal memory when mobile equipment volume production, utilizes the physical parameter that described ID inquiry is corresponding with described ID, and is written to the appointment position in NandFlash internal memory；Described physical parameter is the physical parameter of NandFlash internal memory.
Preferably, the described physical parameter utilizing described ID inquiry corresponding with described ID, including:
At production tool end by tabling look-up, the ID inquiry of NandFlash internal memory is utilized to obtain the physical parameter of NandFlash internal memory.
Preferably, said write to the appointment position in NandFlash internal memory, including:
NandFlash internal memory is initialized, after initialization, the physical parameter of NandFlash internal memory is written in memory block Block0.
Preferably, after described electricity on the mobile apparatus, obtain the quantity of the NandFlash internal memory being successfully connected, including:
After mobile device power, choose each chip select in turn；
Often choosing a chip select, send reset command in Flash bus, whether the Busy signal in detection Flash bus is low signal immediately；
Each chip select sends the read command of standard again, and whether the Busy signal in detection Flash bus is low signal immediately；
If in twice detection, Busy signal is all low signal, it is determined that sheet elects the chip select being connected to NandFlash internal memory as；
Statistics is connected to the quantity of the chip select of NandFlash internal memory.
Preferably, the quantity of chip select of NandFlash internal memory it is connected to described in equal to the quantity of the NandFlash internal memory being successfully connected after powering on.
Preferably, the read command of described standard comprises a definitely effective address.
Preferably, described address is 0.
Preferably, the physical parameter of the described NandFlash of utilization internal memory and the quantity of NandFlash internal memory also include after calculating the available capacity obtaining mobile equipment:
The correct capacity of available capacity with mobile equipment is compared, if unanimously, it is determined that the mobile equipment of production is normal；If inconsistent, it is determined that the mobile equipment of production is abnormal, find out the mobile equipment of incorrect capacity.
A kind of mobile place capacity detection method based on NandFlash internal memory provided by the present invention, the physical parameter of detection NandFlash internal memory when mobile equipment volume production, and it is written to the appointment position in NandFlash internal memory；The quantity of the NandFlash internal memory being successfully connected is obtained on the mobile apparatus after electricity；From the physical parameter specifying position to read out NandFlash internal memory, the physical parameter of NandFlash internal memory and the quantity of NandFlash internal memory is utilized to calculate the available capacity obtaining mobile equipment.Visible, the method is utilized can accurately to obtain the available capacity of mobile equipment, so can by the correct Capacity Ratio pair of the available capacity obtained and the mobile equipment of production, unanimously show that the mobile equipment produced is normal, the inconsistent mobile equipment showing to produce is abnormal, the mobile equipment of incorrect capacity can be found out, therefore so when volume production, mobile place capacity is detected, the basis of capacity check just can be distinguished the mobile equipment of the incorrect capacity of production and the mobile equipment of correct capacity, such that it is able to reach the purpose of normal production, namely mobile equipment effective capacity is accurately detected when the method realizes volume production, reach the purpose of normal production.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the flow chart of a kind of mobile place capacity detection method based on NandFlash internal memory provided by the present invention；
Fig. 2 is the schematic flow sheet preserving physical parameter；
Fig. 3 is the schematic flow sheet of upper electro-detection NandFlash internal memory number.
Detailed description of the invention
The core of the present invention is to provide a kind of mobile place capacity detection method based on NandFlash internal memory, accurately detects mobile equipment effective capacity during to realize volume production, reaches the purpose of normal production.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to the flow chart that Fig. 1, Fig. 1 are a kind of mobile place capacity detection method based on NandFlash internal memory provided by the present invention, the method includes:
S11: the physical parameter of detection NandFlash internal memory when mobile equipment volume production, and it is written to the appointment position in NandFlash internal memory；
S12: obtain the quantity of the NandFlash internal memory being successfully connected on the mobile apparatus after electricity；
S13: from the physical parameter specifying position to read out NandFlash internal memory, utilizes the physical parameter of NandFlash internal memory and the quantity of NandFlash internal memory to calculate the available capacity obtaining mobile equipment.
Visible, the method is utilized can accurately to obtain the available capacity of mobile equipment, so can by the correct Capacity Ratio pair of the available capacity obtained and the mobile equipment of production, unanimously show that the mobile equipment produced is normal, the inconsistent mobile equipment showing to produce is abnormal, the mobile equipment of incorrect capacity can be found out, therefore so when volume production, mobile place capacity is detected, the basis of capacity check just can be distinguished the mobile equipment of the incorrect capacity of production and the mobile equipment of correct capacity, such that it is able to reach the purpose of normal production, namely mobile equipment effective capacity is accurately detected when the method realizes volume production, reach the purpose of normal production.
Based on said method, detailed, the physical parameter of detection NandFlash internal memory when mobile equipment volume production, and the process specifying position being written in NandFlash internal memory is: the ID of detection NandFlash internal memory when mobile equipment volume production, utilize the physical parameter that ID inquiry is corresponding with ID, and be written to the appointment position in NandFlash internal memory；Described physical parameter is the physical parameter of NandFlash internal memory.
Wherein, the process utilizing the ID inquiry physical parameter corresponding with ID is: at production tool end by tabling look-up, utilize the physical parameter of the ID inquiry acquisition NandFlash of NandFlash internal memory.
The process specifying position being written in NandFlash internal memory is: NandFlash internal memory is initialized, after initialization, the physical parameter of NandFlash internal memory is written in memory block Block0.
Wherein, the process of step S12 adopts following steps to realize:
S1: after mobile device power, choose each chip select in turn；
S2: often choose a chip select, sends reset command in Flash bus, and whether the Busy signal in detection Flash bus is low signal immediately；
S3: each chip select sends the read command of standard again, whether the Busy signal in detection Flash bus is low signal immediately；
S4: if Busy signal is all low signal in twice detection, it is determined that sheet elects the chip select being connected to NandFlash internal memory as；
S5: statistics is connected to the quantity of the chip select of NandFlash internal memory.
Wherein, the quantity of chip select of NandFlash internal memory it is connected to equal to the quantity of the NandFlash internal memory being successfully connected after powering on.
Wherein, the read command of standard comprises a definitely effective address.Optionally, described address is 0.
Concrete, after utilizing the physical parameter of NandFlash internal memory and the quantity of NandFlash internal memory to calculate the available capacity obtaining mobile equipment, the correct capacity of available capacity with mobile equipment is compared, if unanimously, it is determined that the mobile equipment of production is normal；If inconsistent, it is determined that the mobile equipment of production is abnormal, find out the mobile equipment of incorrect capacity.
Owing to NandFlash can ensure that when dispatching from the factory the memory block Block0 of all of product is good, thus just can the physical parameter of NandFlash be saved in certain page Page in Block0 when volume production, after device power, these parameters just can be read.
And, because the physical characteristic of NandFlash itself, carrying out resetting, read, the operation such as programming time all there will be situation about being dragged down by Busy signal, therefore can judge whether this sheet NandFlash is effective connection according to the height state of Busy signal after sending order.By two above step being combined the available capacity that just can accurately draw storage device, and it is not limited to the type of NandFlash, it is possible to accomplish the compatibility to model in future.
The executive agent of step S11 to S13 is storage device controller, and based on said method, storage device controller itself need not record the physical parameter table of various NandFlash, can the NandFlash of the new model that future is born be supported equally simultaneously.
Said method detects the quantity of the NandFlash that equipment connects after device power fast and accurately and then calculates total effective storage capacity.Concrete, inquire about the physical parameter of its correspondence according to the ID of the NandFlash detected in upper computer end and be written to the appointment position of NandFlash during equipment volume production；The quantity of the NandFlash connected according to the detecting of specific detection method after powering on；Again from specifying position to read physical parameter such that it is able to calculate total memory capacity of equipment.The NandFlash occurred in literary composition refers to the NandFlash internal memory in said method.
In more detail, a kind of mobile place capacity detection method based on NandFlash internal memory provided by the present invention is divided into three phases.
First stage is that namely volume production record physical parameter preserves physical parameter.The NandFlash model used on identification equipment during volume production, this realizes by reading ID；At production tool end by the physical parameter obtaining NandFlash of tabling look-up；NandFlash is carried out, initialization is complete, and physical parameter write is specified position and Block0.
So-called volume production, is initialized process that the NandFlash in storage device is scanned, and this process is that batch carries out simultaneously for storage device, so being called volume production.
Second stage is a powering up obtaining the effective NandFlash number connected and namely goes up electro-detection NandFlash number.First, after powering on, choosing each chip select in turn, and send reset command in Flash bus, and check the Busy signal in Flash bus immediately, the counterpiece being pulled low is chosen and is likely to be connected to NandFlash；Then sending the read command of standard in the Flash bus chosen each again, comprise definitely effective such as address 0, address, check the Busy signal in Flash bus immediately after, the counterpiece being pulled low is chosen and is connected to NandFlash；The all effective chip select of last comprehensive first two steps can be concluded that as being connected to NandFlash's, it is possible to calculates total NandFlash number accordingly.
Phase III is the available capacity calculating storage device.From the physical parameter specifying position to read NandFlash, the number according to parameter and the NandFlash of second stage, it is possible to accurately calculate the available capacity of storage device.
A kind of mobile place capacity detection method based on NandFlash internal memory provided by the present invention, is applied in various based in the NandFlash storage device as storage medium.
In more detail, the first stage: preserve physical parameter.First stage process is as follows:
Step 1, production tool reads the ID of NandFlash；
Step 2, production tool is according to ID query argument table；
Step 3, is scanned NandFlash initializing；
Step 4, preserves physical parameter to specifying position.
Specifically being referred to Fig. 2, Fig. 2 is the schematic flow sheet preserving physical parameter.
Second stage: upper electro-detection NandFlash number.Second stage process is as follows:
Step 1, drags down chip select, sends the reset command of NandFlash；
Step 2, checks whether Busy signal is low；
Step 3, drags down chip select below successively, and repeat step 1,2, until the maximum chip select number that can support；
Step 4, from the beginning drags down chip select, sends the read command of one group of effective NandFlash；
Step 5, checks whether Busy signal is low；
Step 6, drags down chip select below successively, and repeat step 4,5, until the maximum chip select number that can support；
Step 7, the chip select number that the Busy signal in statistic procedure 3,6 is all pulled low, it is effective NandFlash number.
Specifically it is referred to the schematic flow sheet that Fig. 3, Fig. 3 are upper electro-detection NandFlash internal memory number.
Phase III: calculate the available capacity of storage device.Phase III process is as follows:
Step 1, from the physical parameter specifying position to read NandFlash；
Step 2, the number according to parameter and the NandFlash of second stage, it is possible to accurately calculate the available capacity of storage device.
In sum, a kind of mobile place capacity detection method based on NandFlash internal memory provided by the present invention, the physical parameter of detection NandFlash internal memory when mobile equipment volume production, and it is written to the appointment position in NandFlash internal memory；The quantity of the NandFlash internal memory being successfully connected is obtained on the mobile apparatus after electricity；From the physical parameter specifying position to read out NandFlash internal memory, the physical parameter of NandFlash internal memory and the quantity of NandFlash internal memory is utilized to calculate the available capacity obtaining mobile equipment.Visible, the method is utilized can accurately to obtain the available capacity of mobile equipment, so can by the correct Capacity Ratio pair of the available capacity obtained and the mobile equipment of production, unanimously show that the mobile equipment produced is normal, the inconsistent mobile equipment showing to produce is abnormal, the mobile equipment of incorrect capacity can be found out, therefore so when volume production, mobile place capacity is detected, the basis of capacity check just can be distinguished the mobile equipment of the incorrect capacity of production and the mobile equipment of correct capacity, such that it is able to reach the purpose of normal production, namely mobile equipment effective capacity is accurately detected when the method realizes volume production, reach the purpose of normal production.
Above a kind of mobile place capacity detection method based on NandFlash internal memory provided by the present invention is described in detail.Principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention carries out some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Claims (9)
1. the mobile place capacity detection method based on NandFlash internal memory, it is characterised in that including:
The physical parameter of detection NandFlash internal memory when mobile equipment volume production, and it is written to the appointment position in NandFlash internal memory；
The quantity of the NandFlash internal memory being successfully connected is obtained on the mobile apparatus after electricity；
From the physical parameter specifying position to read out NandFlash internal memory, the physical parameter of NandFlash internal memory and the quantity of NandFlash internal memory is utilized to calculate the available capacity obtaining mobile equipment.
2. the method for claim 1, it is characterised in that the described physical parameter of detection NandFlash internal memory when mobile equipment volume production, and it is written to the appointment position in NandFlash internal memory, including:
The ID of detection NandFlash internal memory when mobile equipment volume production, utilizes the physical parameter that described ID inquiry is corresponding with described ID, and is written to the appointment position in NandFlash internal memory；Described physical parameter is the physical parameter of NandFlash internal memory.
3. method as claimed in claim 2, it is characterised in that the described physical parameter utilizing described ID inquiry corresponding with described ID, including:
At production tool end by tabling look-up, the ID inquiry of NandFlash internal memory is utilized to obtain the physical parameter of NandFlash internal memory.
4. method as claimed in claim 2, it is characterised in that said write to the appointment position in NandFlash internal memory, including:
NandFlash internal memory is initialized, after initialization, the physical parameter of NandFlash internal memory is written in memory block Block0.
5. the method for claim 1, it is characterised in that obtain the quantity of the NandFlash internal memory being successfully connected after described electricity on the mobile apparatus, including:
After mobile device power, choose each chip select in turn；
Often choosing a chip select, send reset command in Flash bus, whether the Busy signal in detection Flash bus is low signal immediately；
Each chip select sends the read command of standard again, and whether the Busy signal in detection Flash bus is low signal immediately；
If in twice detection, Busy signal is all low signal, it is determined that sheet elects the chip select being connected to NandFlash internal memory as；
Statistics is connected to the quantity of the chip select of NandFlash internal memory.
6. method as claimed in claim 5, it is characterised in that described in be connected to the quantity of chip select of NandFlash internal memory equal to the quantity of the NandFlash internal memory being successfully connected after powering on.
7. method as claimed in claim 5, it is characterised in that the read command of described standard comprises a definitely effective address.
8. method as claimed in claim 7, it is characterised in that described address is 0.
9. method as claimed in any of claims 1 to 8 in one of claims, it is characterised in that the physical parameter of the described NandFlash of utilization internal memory and the quantity of NandFlash internal memory also include after calculating the available capacity obtaining mobile equipment:
The correct capacity of available capacity with mobile equipment is compared, if unanimously, it is determined that the mobile equipment of production is normal；If inconsistent, it is determined that the mobile equipment of production is abnormal, find out the mobile equipment of incorrect capacity.
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