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How to write the program using I2C Registers

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narithota

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lpc21xx i2c

Hay
I need help
I have interfaced 6 toggle switches with LPC2114 (In built I2C) using PCF8574A PORT expander by connecting SDA, SCL pins.
I completed hard ware part but I am facing problem with software. I Read LPC2114 data sheet but I am unable to understand the concept of How to write the program using I2C Registers.

Please help me how to write program to communicate LPC2114 I2C with PCF8574A PORT expander.

Thank you

Regards
Chandu
 

Re: I2C

HI

LPC21xx I2C is a bit compliceted for begineers - search for demo code in keil site for the LPC2138 it is the same peripheral


All the best

Bobi
 

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