I2C (inter-integrated circuit) bus detection device
A detection device and bus technology, applied in error detection/correction, instruments, electrical digital data processing, etc., can solve the problems of complex circuit structure and high cost, and achieve the effect of simple circuit structure and low cost
Inactive Publication Date: 2011-05-18
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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The invention provides an I2C (inter-integrated circuit) bus detection device. The device comprises a first trigger, an inverter, a second trigger, a microcontroller, a memory and a display interface, wherein a clear pin of the first trigger receives the clock signals output by clock lines of an I2C bus; a clock pin of the first trigger receives the data signals output by data lines of the I2C bus and outputs the first trigger signals; the input terminal of the inverter receives the data signals output by the data lines of the I2C bus and inverts the data signals; a clear pin of the second trigger receives the clock signals of the I2C bus; a clock pin of the second trigger is connected with the output terminal of the inverter to receive the inverted data signals and outputs the second trigger signals; a first interrupt pin of the microcontroller receives the first trigger signals, a second interrupt pin is connected with the second trigger signals and a third interrupt pin receives the clock signals of the I2C bus; an input pin of the microcontroller receives the data signals of the I2C bus; the memory is connected with an input/output pin of the microcontroller and is used for memorizing the data captured by the microcontroller; and the display interface is connected with an input/output pin of the microcontroller and is used for displaying the signals memorized in the memory.
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