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PIC I2C Proteus Simulation

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vvmm

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Hi,

I am new to I2C communication and I studied Microchip's documentation and some tutorials online. I need to make 2 PICs communicate with each-other (master-slave). In this basic first scenario I have two buttons at the master, ON and OFF. When I press them I want to drive the LED from the slave PIC. I send one byte: 0xAB for ON, 0xBA for OFF. The simulation seems to work, but not all the time, and sometimes doesn't work at all or intermittent. I have attached the Proteus project if someone can help me with at least a hint.

Follow-up question for I2C: Does the MSSP module automatically send ACKs? Is my implementation in the attached project correct? (I didn't check for SSPOV, BF, WCOL conditions because I assumed they don't happen in my scenario)

Thanks,
Mihai
 

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