programming way |
encryption chip programming operation error brings loss |
programming hardware problems |
Beware of the heat-induced errors |
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Ic chip programming error of all kinds of problems, we talk about this today is the most common lead to chip program quality problems, when you know these, will be in the later work to avoid how to damage your chip, because the chip program operation carelessly lead to chip damage, then will directly cause losses, is a need to be seriously.
programming way
• When your chip was programming error, we usually say that it may be a batch burning problem.
• Online programming is unstable (online programming refers to the element welded on the board and then programming ). To use offline burn more stable, is to use the simulator or burner burn, but this is not foolproof.
• Most of the development board or their own system board program, if the voltage is unstable, it may also lead to overvoltage damage your chip, and often this time even if the supplier will complain. Because the chip shipment is good, but because of their own use of improper damage, so this problem is still worth noting.
encryption chip programming operation error brings loss
• Once a careless engineer will error code batch burn into an encryption chip, lead to the whole batch of chip can't use, he is very anxious for supplier return processing, all kinds of inspection process with the goods source said the goods and no quality problem, eventually he had to admit is his mistakes lead to component encryption, he had to find decryption components to empty, encrypted chip to decryption is not an easy thing.
• The decrypting process was extremely complicated to find the relevant organization, so the poor engineer's company suffered a loss of tens of thousands of worth of goods. Some people think that the level of chip encryption, do not set to the highest level of chip can be erased, but some manufacturers in order to protect their products from being read theft using the highest level of encryption. Therefore, the practice of insurance is to burn in batches as much as possible, do a good job of burning process management, and the training of programming personnel needs to be done.
programming hardware problems
When many people encounter chip programming problems, will first question the quality of components.When you encounter programming problems, the first thing to check should be hardware problems. The most common hardware problems during programming process are as follows.
Test socket aging
• When we choose a programmer, it will be paired with a test socket. However, the test socket may fail to contact and read slowly due to frequent use.
cables Problem
• Simple problems like USB cables are easily overlooked. Incompatible data cables often prevent the chip information from being read and programming.
programmer
• Many engineers who try to manually programming chips or often buy inferior brands of programmmer to save costs, which causes problems because there are too few compatible chip models.
Beware of the heat-induced errors
• Although the high temperature may be a chip killer, some people may also say that this is not reasonable ah, I take the welding air gun 300 degrees high temperature disassembly chip, the chip is not broken, it seems that the chip in the high temperature is not so easy to break ah?
• The positive solution should be that the integrated circuit is particularly afraid of high temperature when working, and the overheat excitation. The high-energy carrier will increase the probability of the transistor being broken down and short circuit. To put it bluntly, the high temperature does not meet the current. In addition, the high temperature improves the electric migration leads to the decline of the working life of the wire, do not feel brain, simple understanding is that the chip in the work without current everything is easy to say, so this is the reason why the air dryer will not damage the chip.
There are so many ways to kill a single chip,It also includes abnormal voltage and current currents, static damage, excessive humidity, pollution and corrosion, and so on.