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I²C (Inter-Integrated Circuit) is a multi-drop serial bus invented by Philips (now NXP) for communication between ICs on the same PCB, i.e. short distance.

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i2c undefined symbols on compile MPLab XC8

I am trying to compile a simple I2C program for a PIC18F45K22 using MPLab XC8 compiler. … = 0); // Wait for ACK from slave // Close I2C CloseI2C1(); printf("%c",I2C_Recv); } return; // just for C syntax best practice. …
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4 votes

i2c undefined symbols on compile MPLab XC8

Found the solution. That was that the linker options were not set to link in the peripheral library. Project properties > XC8 Linker > Options pane, Runtime selection > 'Link in Peripheral Libra …
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