Q&A Sheet 10Question: How can I monitor the I2C bus?There are a few commercial I2C monitor / debuggers around that can do this. Information on these devices can be found here. There is another possibility to do this: By using the stand-alone I2C controller PCF8584 from Philips. This chip has a certain mode in which it does not take part in the real I2C action but only records what is going on. It listens to all addresses, but does not generate any acknowledge. Using some software routines and a MCU you could build a universal I2C data logger. |
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