Control method of system having many inter-integrated circuit (I2C) buses
A control method and bus controller technology, applied in the direction of instrumentation, electrical digital data processing, etc., can solve the problems of multi-CPU resources, inability to realize multi-channel I2C bus, low efficiency, etc., to enhance execution efficiency, eliminate data transmission and processing The effect of the bottleneck
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[0044] like figure 1 As shown, in the system with multi-channel I2C bus of the present invention, it mainly includes a processor and a programmable logic device connected with the processor, and the I2C bus of the processor is expanded, so that the processor can have multiple I2C bus channel, each I2C bus can hang multiple different devices, which can be master devices or slave devices. The processor uses the local bus to communicate with the programmable logic device through the address line, data line, read-write signal line and chip select signal line, and executes the control software inside the programmable logic device to complete the communication function with the main body of the processor, and at the same time For processing, complete the complete I2C protocol, complete the function of the I2C bus controller inside the programmable logic device, thereby completing the conversion from the local bus of the processor to the I2C protocol, and use the programmable logic d...
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