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3.2.5 Programming, writing the Data in Memory Buffer into a Chip
If the chip package is not DIP encapsulation, user may need to buy the adapter
according to the device information and insert the chip properly into the socket..
(Contact Xeltek for selection and purchase of the adapters.)
The operation steps for programming a chip are as follows:
Blank Check. This step can be skipped if the chip is brand new.
Program.
Verify. This step is necessary. The programming cannot be implemented
unless the chip passes the Verification. Some chips do not provide the
unit-to-unit check function, but only provide the accumulation check function,
such as
Verify CRC, etc.
check function.
For the electrically erasable chips containing some information, the blank
check will fail. In this case, the Erase operation should be performed first
before the blank check. For some EPROM chips, the data can be overwritten.
So no Erase operation needed.
If encryption is required, add Security or Protect function after Verify.
Note: For some devices, the configuration word should be set before the encryption is
carried out. Refer to the detailed explanations on the function.
User can choose Auto to finish all the operations in one step.
3.2.6 Security and Password Input
To prevent the user's data from being used by others, sometimes the programmer asks
the user to input the password in the operation process.
Set the password: Input a new password.
1. Enter the new password
If the input password in 1 is the same and the same as in 2, the password is valid. If
there is no input in 1 and 2, it means that no password is needed here.
Note: Spaces are characters and they can be used in the password.
Verify the password: When the data protected with some password are
Some chips even do not provide the accumulation
2. Enter the password for confirmation
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