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pca9564 Usage

Question asked by Michael Zylla on Oct 2, 2018
Latest reply on Oct 29, 2018 by Michael Zylla

Hello, I am a new member to this forum, and a 4th year EE student, whom is very much looking forward to graduation .


Anyways, I am working a project where we needed to add a discrete serial communication port, to an ATMega2560. We ended up coming across the PCA9564, as it seamed perfect for our application.I ordered up a bunch of the controller, and soldered them to breakout board. I have been trying to interface with these controllers, using an Arduino. I have included the code that i tried to execute, where i intended to write 8 parallel bits to the PCA9564, and then read those same bits (through the serial port) on the Arduino, on the other side of the PCA9564. I don't think i am using the PCA9564, as i think i am misusing the Read and write features.


If anyone has any experience with the PCA9564, i would appreciate any help..