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Why does read from I2C GPIO Expander MCP23017 requires NACK
I'm using the MCP23017 16-bit I2C GPIO Expander in combination with the microcontroller PIC18F47J53. Both products are from Microchip.
Datasheet MCP23017
Datasheet PIC18F47J53
I use MCC (MPLab Code ...
- 147
3
votes
1
answer
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Problem writing to MCP23017 I/O Expander registers (i2c)
I am creating a basic cable tester device and using I2C to interface with two MCP23017 I/O expander chips.
In my code each MCP23017 slave has its own address and I can communicate with both of them ...
- 133