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Calculating the address of the finger scanner
The serial number of the finger scanner is required to calculate the address. This can be found on
the label attached to the finger scanner. The serial number is composed of multiple parts:
Part no.
Production week
Production year
Sequential number
aaaaaa
ww
yy
ssss
801310
10
11
0405
Table 5: Serial number structure with example
Calculation formula:
Address = (((yy * 53 + ww) * 655367)) + ssss) + 0x70000000
Example calculation:
ww = 10 = 0xA
yy = 11 = 0xB
ssss = 0405 = 0x195
Address
= (((0xA * 53 + 0xB) * 655367) + 0x195) + 0x70000000
= ((0x21D * 655367) + 0x195) + 0x70000000
= (0x2 0x195) + 0x70000000
= 0x2 0x70000000
= 0x721D0195
