standard time and standard method, especially do not charge over 12 hours.
Generally, the charging method described in the mobile phone manual is a standard charging method suitable for the mobile phone.
In addition, the cell phone or charger of the lithium battery will automatically stop charging after the battery is full, and there is no such thing as a "streaming" charge that lasts for more than 10 hours.
That is to say, if your lithium battery is fully filled, it is also a white charger.
for overdischarge, And the overdischarge is also very unfavorable to the lithium battery. This raises the following question.
2. When should I start charging normally?
This is often seen in our forum. because the number of charge and discharge operations is limited, the battery power should be used up and recharged as much as possible. However, I found an experiment table on lithium-ion battery charging and discharging cycles. The following figure shows the cycle life data:
Cycle Life (10%
is not suitable for overdischarge, And the overdischarge is also very unfavorable to the lithium battery. This raises the following question.2. When should I start charging normally?Because the number of charge and discharge operations is limited, the power of the lithium battery should be used up and recharged as much as possible. However, I found an experiment table on lithium-ion battery charging and discharging cycles. The following figure shows the cycle life data:Cycle Life (10%
,1],a[i,2]); -Sort1, n); j:=1; Wu fori:=2 toN Do//Go heavy - begin About if(A[i,1]1])or(A[i,2]2]) Then $ begin - Inc (J); -A[j,1]:=a[i,1];a[j,2]:=a[i,2]; - End; A End; +n:=J; the//Convex bag - fori:=1 toN Dod[i]:=I;doit (B,M1); $ fori:=1 toN Dod[i]:=n+1-I;doit (c,m2); the//two halves of integration the fori:=1 toM1
memory chip and the protection information of the primary storage block.
Page of Flash
STM32 Flash main storage block by page organization, some products 1KB per page, and some products per page 2KB. The typical purpose of a page is to erase Flash by page. From this point of view, the page is a bit like a generic flash sector.
Classification of STM32 Products
STM32 according to the Flash main storage block capacity, different pages, system memory,
Generally, flash memory in single chip microcomputer is used for storage.ProgramCodeIs a read-only memory. In the MSP430 microcontroller, you can use the built-in flash controller to erase or rewrite any segment of content. In addition, the MSP430 microcontroller also has a flash area (information memory) for storing data that needs to be permanently stored after power loss. The Flash Controller of 430 can be used to complete large data records and Sa
After U-Boot is powered on, press any key to exit the Automatic startup status and enter the command line.
DRAM: 64 MB
Flash: 2 MB
NAND: 64 MiB
In: serial
Out: serial
Err: serial
Net: CS8900-0
Hit any key to stop autoboot: 1
At the command line prompt, enter the U-Boot command and execute it. U-Boot supports dozens of Common commands. With these commands, You can debug the Development Board, guide the Linux kernel, and erase Flash to complete system
Tutorial since we are so fancy Photoshop6, she just called us "wonderfully" seems not enough to mean it? If she can still ... It would be nice to help us become "Masters of Art". Yes! How can you not? Corn brother told everyone, PHOTOSHOP6 will never let us down! Let's start with the art tools PHOTOSHOP6 give us.
Rubber Tools
The eraser tool is, of course, the tool for erasing colors. The eraser tools in the PHOTOSHOP6 version are different from previous versions, as shown
, and start development as soon as possible to free up more time for the development work to use sprint0 to solve large solutions and technical risks
Reserve 10% ~ Prepare for the next sprint at 20%
Constantly adjusted and inspected:
Each subrelease completes the previous sprint and re-implements release planning for large changes.
After each sprint review is completed, adjust the content and priority of the product backlog.
Start now and continue improving
Share 4: Improvement, impr
, the Internet management subtree. The Mibhas been assigned a node under the Mgmt subtree with the label MIB and numeric value 1. Because all MIB variables fall under this node, they all has names beginning with the prefix 1.3.6.1.2.1.Earlier we said the MIB groups variables into categories. The exact meaning of the categories can now is Explained:they is the subtrees of the MIB node of the object IDE Ntifier namespace. Figure 30.5 illustrates the idea by showing part of the naming subtree unde
source:https://sourceforge.net/p/dban/discussion/208932/thread/cb591b59/Question:Trouble in running Dban on Dell notebook (Vista Home Premium, 64-bit).Booted from the CD, but got the "PCI Sysfs" error and the program just hung.Based on the This forum, tried seeing if there is a media card reader needed to disable-but not find one.Came across another good suggestion-using the "Nwipe" ISO (forked from Dban ' s dwipe) included in Parted Magic.This method seems to being working (
the memory, especially for the NUMA architecture processor. Therefore, there is a kind of data structure called DOD, that is, the design of Data Oriented Design is often used, and more attention is paid. Refer:
Pitfalls of Object Oriented Programming
Note that the title is the defect of OOP. It does not discuss Oop, process-oriented programming paradigm, but the impact of OOP on performance. The following are some articles related to
know. M0 core accesses the read only data in Flash via AHB, which is implemented through instruction fetch and latency, both managed by the FLASH_ACR (Flash access control register). The purpose of the command fetch is to increase the efficiency of the fetch by using a prefetch buffer. Latency is used to maintain the read Flash memory control signal, so that the high-speed reading flash data without error.Flash Write (program and erase)Flash for the
1. For a sequential container (such as Vector,deque), the sequence container is an array container, and deleting the current iterator invalidates the iterator of all subsequent elements. This is because Vetor,deque uses contiguous allocated memory, and deleting an element causes all subsequent elements to move forward one position. So it is not possible to use erase (iter++) way, fortunately the erase metho
What about a solid state hard drive? The solid-state drive has been in use for a long time, especially when there is little storage capacity, which will occur more or less quickly. Behind this is the memory data write/Erase mode restrictions, as well as the hardware and firmware based on SSD layer, including Trim, garbage collection (garbage Collection) and other mechanisms of operational effectiveness. Therefore, discretion to implement secure
instance of this role. It is implemented by specific classes in Java.
The class diagram is as follows:
After reading the first two models, I should be aware of the number of roles in this model. I will not give a specific example. But be sure to meet the conditions for using the abstract factory model.
Part 2: An Example of an abstract factory
The following example of an abstract factory is transferred from another blog(Address: http://wuyuetian.iteye.com/blog/638401, 2010-2010-2010-
periodically checks the capacitance, if the charge is greater than 1/2 of the charge, it is considered to represent 1, and the capacitance is fully charged, if the charge is less than 1/2, it is considered to represent 0 To maintain the continuity of the data.There are many types of ROM, the prom is a programmable rom,prom and EPROM (erasable programmable ROM) The difference is that the prom is a one-time, that is, after the software is poured, it can not be modified, this is an early product,
address is in flash, it will directly call the function operation for writing flash. Therefore, use this command for U-boot flash writing. Of course, you need to clean the corresponding flash area first.
The Count parameter is the number of copies. The unit is byte, word, and long word, respectively, based on CP. B CP. W CP. L.
5. CRC32
CRC32 address count [ADDR]
-Compute CRC32 checksum [Save at ADDR]
The CRC32 command can calculate the checksum of stored data.
The 1st parameter address is the
, including read/write operations on flash.
The Source Parameter contains the starting address of the data block to be copied.
The 2nd target parameter is the address to be copied to the data block. If the address is in flash, it will directly call the function operation for writing flash. Therefore, use this command for U-boot flash writing. Of course, you need to clean the corresponding flash area first.
The Count parameter is the number of copies. The unit is byte, word, and long word, respec
-only memory (EEPROM) are further developed for ease of use and mass production. EPROM need ultraviolet light for a long time exposure to wipe, use is very inconvenient. The 1980s of the EEPROM, to overcome the lack of EPROM, but the integration is not high, the price is more expensive. A new kind of flash memory is developed, which is similar to EPROM in the memory cell structure. Its high integration, low power consumption, small size, and can be quickly wiped online, and thus get rapid develo
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