______________
In the source program, user can define the password (passwordinit), serial number start address
(addr), the count of byte in the serial number (cnt) and create serial number automatically (tmp).
Password (passwordinit)
In the source program, “8888” is the initial password, user can revise it. The default of the longest
length is 15 bytes.
Serial Number Start Address (addr)
Addr defines buffer address to write data following the address. Be careful to set correct addresses.
Address must be defined inside device start and device end address range. In case of address out of
range, the other serialization data will be missing. In the source program, “7F0” is the initial address.
The default of the longest length is 4 bytes. So the range of address is from 0 to 7FFFFFFFH.
The Count Of Byte In The Serial Number (cnt)
User can define the length of serial number. In the source program, cnt is 5. The serial number can
have 512 bytes at most. When password is wrong, cnt=0.
Create Serial Number Automatically (tmp).
User can define function and create serial number automatically. The serial number will be returned
as string. The serial number must relate to the start label(label). After IC is programmed ok, the label
add one automatically (label=label+1).
For example:
Create serial number which has 5 bytes and the expression is num=123456789A. Then you can use
“sprintf(tmp,"%010x",num);” to return the result which expression is tmp=“123456789A”.
The process of writing serial number to buffer is: 12 to 7F0
34 to 7F1
．．．．．．
9A to 7F4
10.1.3 Verify Option
Once: Enable this option if you want the programmer to do one verify test at VCC.
Twice at VCC +/-5%: Enable this option if you want the system to do two verify test passes, one at VCC
+5%, the other at VCC –5%.
Twice at VCC +/-10%: Enable this option if you want the programmer to do two verify test passes, one at
VCC +10%, the other at VCC –10%.
For example, For VCC=5.00V, you can verify once at VCC=5V. Or do two verify test passes,
one at VCC=5.25V, the other at VCC=4.75V. Or do two verify test passes, one at
VCC=5. 5V, the other at VCC=4.5V.
10.2 Modify Parameter
Tianjin Weilei Techonlogy Ltd.
www.weilei.com TEL:022-83945122
FAX：022-83945121 2018-03-08
To Next Page
Loading...