The inner diameter of software of cell phone jammer is 15mm.
Software technology foundation is weak domestic models, the use of such combinations are easy to cause a software failure, you the reader to be careful repair. Above described in detail a variety of logic chips, the following specific description about the most common method of chip identification. To fully understand the use of an IC, functions, basic parameters, it must know the model of the IC and its origin. General integrated circuit chip front are printed model or mark, which according to the prefix or logo of the model will be able to initially know it is a manufacturing plant or the company's integrated circuit products, according to its figures will be able to know is what kind of circuit functions. The prefix of the IC product model for the company code.
The interface is divided into program-controlled I / O interface, the program interrupt I / O interface, and direct memory access (DMA) interface of three. Cell phone input / output interface a wide range of different external circuits and equipment requires a corresponding input / output interface circuit, but can be used for the preparation of procedures specifically identified in the work of the interface, features, and working status. Timer / event counter. In order to improve the ability of real-time control of the microcontroller, the general microcontroller, a timer circuit. Timer There are two types: First, the increment counter; two Reduction counter. When the timer overflows, the incremental calculator to generate an interrupt for standard bit; when the timer back to zero, decrement the counter generates an interrupt. It is the electronic map of the cell phone jammer system.
Some timer also has the ability to automatically re-load, which makes the use of more flexible and convenient to use this function it is easy to generate a programmable clock timer. In addition, the timer can also be used as an event counter, when working in counter mode can specify the input of the input pulse, the counter to count operator. The clock system is a microcontroller system, the microcontroller step by step, according to certain rules, arranged in chronological time, is controlled by the clock system. Operation to be done in chronological order of the clock signal microcontroller to execute instructions, arrange, and to no one to operate the provisions of the fixed time, so we must at some point, the microcontroller only an action to achieve the orderly working of the circuit. The manufacturer can provide the unmarked package for cell phone jammer .
State related to the speed of its work and the phone most of the phone at boot time due to the many files that need to be addressed, time-short, the clock is 13MHz, while in standby or hibernation when 32.768kHz on enough. This is somewhat similar to the computer CPU clock speed, which is why when the phone is switched on 13MHz frequency offset one o'clock does not matter, as long as there is sufficient amplitude can send data on the line, and if one of the network when the base station could not calibration.
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