How to interface PGA with a PIC

[clau]

Hi everybody,

I'm using for the first time a PGA (Programmable Gain Amplifier) and I don't know how to use it.

I'm using a MCP6S91 , an one channel amplifier.
(https://ww1.microchip.com/downloads/en/DeviceDoc/21908a.pdf)

And I want to interface with a PIC18F4550. I'm using MPLAB and CCS C Compiler
Can somebody help me?

Thank you!

 

[barry]

The PGA is programmed through a Serial Peripheral Interface (SPI). The PIC also has a SPI interface. Now you need to go read about SPI, and about how to implement it in your PIC.

 

[horace1]

have a look at this project using a PIC18F2550 and a MCP6S91
https://www.circuitvalley.com/2011/07/two-channel-pcbased-oscilloscope-usb.html