This version (05 Feb 2014 18:57) was approved by Lars-Peter Clausen.The Previously approved version (01 Oct 2012 09:04) is available.
Table of Contents
Supported Devices
Evaluation Boards
Overview
The AD5160 provides a compact 2.9 mm × 3 mm packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors but with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.
The wiper settings are controllable through an SPI-compatible digital interface. The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC latch.
Operating from a 2.7 V to 5.5 V power supply and consuming less than 5 μA allows for usage in portable battery-operated applications.
The goal of this project (Microcontroller No-OS) is to be able to provide reference projects for lower end processors, which can't run Linux, or aren't running a specific operating system, to help those customers using microcontrollers with ADI parts. Here you can find a generic driver which can be used as a base for any microcontroller platform and also specific drivers for different microcontroller platforms.
Driver Description
The driver contains two parts:
- The driver for the AD5160 part, which may be used, without modifications, with any microcontroller.
- The Communication Driver, where the specific communication functions for the desired type of processor and communication protocol have to be implemented. This driver implements the communication with the device and hides the actual details of the communication protocol to the ADI driver.
The Communication Driver has a standard interface, so the AD5160 driver can be used exactly as it is provided.
There are three functions which are called by the AD5160 driver:
- SPI_Init() – initializes the communication peripheral.
- SPI_Write() – writes data to the device.
- SPI_Read() – reads data from the device.
SPI driver architecture
The following functions are implemented in this version of AD5160 driver:
| Function | Description |
|---|---|
| char AD5160_Init(void) | Initializes the SPI communication peripheral. |
| void AD5160_Set(unsigned char value) | Writes data to AD5160. |
resources/tools-software/uc-drivers/ad5160.txt · Last modified: 04 Jul 2013 16:26 by Lucian Sin