Dynamic token with key protection function and working method thereof
A technology of dynamic token and protection function, applied in the field of keys, can solve problems such as affecting the service life of electronic products
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Embodiment 1
[0091] Embodiment 1 of the present invention provides a dynamic token with a key protection function, such as figure 1 As shown, it includes: a main control module 101, a display module 102, a key module 103, a power supply module 104, a key disable timing module 105 and a key abnormal timing module 106; wherein, the main control module 101 includes a clock unit 1011, a timing interrupt unit 1012, an input interrupt unit 1013 and an input / output unit 1014;
[0092] The main control module 101: connected with the input / output unit, used for controlling the output level of the input / output unit 1014; connected with the input interrupt unit, used for inputting the input / output unit 1014 When the preset level changes, the input interrupt unit 1013 is controlled to generate an input interrupt; it is connected to the clock unit and the timing interrupt unit, and is used to control the timing interrupt unit 1012 to generate an input interrupt triggered by the clock unit 1011 timed i...
Embodiment 2
[0130] Embodiment 2 of the present invention provides a working method of a dynamic token with key protection function on the basis of Embodiment 1, such as Image 6 shown, including:
[0131] Step 201: The dynamic token is powered on and initialized, the initial state of the input pin of the input / output unit is set as the first level, and the output pin of the input / output unit is initialized to the second level;
[0132] Among them, in embodiment 1 figure 2 , the initial state of the input pin of the input / output unit is taken as the first level, and the output pin of the input / output unit is initialized to the second level, specifically: the key in the key module ( Pin 1 of Key1) is connected to VCC through a resistor (R1), then the initial state of the input pin (K1) in the input / output unit is high level, and the output pin (K2) is initialized to low power flat;
[0133] Among them, in embodiment 1 image 3 , the initial state of the input pin of the input / output un...
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