PIC32MX: I2C External RAM

Original Assignment

Do not erase this section!

Your assignment is to use I2C communication to send data from the PIC32 to a PCF8570P SRAM chip.

Overview

This page discusses work toward sending data to a PCF8570P SRAM chip. Basic I2C communication information, chip data, circuit diagram, and a partially functioning code are given. Prior to the code is a brief explanation of where the code is failing and why no data is being transmitted between the PIC 32 and the PCF8570P.

Circuit

Include a schematic and give any part numbers. A photo of your circuit is OK, but not as a replacement for a schematic.

Code

Where possible, make it a single piece of well-commented cut-and-pastable code, or at least make each function that way, so others can easily copy it. Most comments should be in the code itself; outside the code (on the wiki) should only be explanatory comments that are too cumbersome to include in the code.