MAX22017 no-OS Example Project

Overview

The MAX22017 evaluation kit provides the hardware to evaluate the MAX22017 GPIO controller and DAC voltage outputs.

Refer to the MAX22017 IC data sheet for detailed information regarding operationof the IC.

Applications

Programmable Logic Controllers
Programmable Automation Controllers
Distributed Control Systems

Hardware Specifications

The MAX22017EVKIT device has to be supplied with a 24V DC output AC adapter and a micro-USB cable.

Pin Description

Please see the following table for the pin assignments for the interface connector (J201).

Pin

Name

Description

1

CS

Chip-Select

2

DNC

Do Not Connect

3

MOSI

Master-Out Slave-In

4

RSTB

Active-Low Reset Pin

5

MISO

Master-In Slave-Out

6

DNC

Do Not Connect

7

SCLK

Serial Clock

8

DNC

Do Not Connect

9

GND

Ground

10

GND

Ground

11

DNC

Do Not Connect

12

DNC

Do Not Connect

Turn off all the switches at the SW1, connect micro-USB cable to J202 and connect 24V DC power supply to J5.

Also please refer to the following table for the jumper positions on the board.

Jumper

Position

J11

1-2

J10

1-2

J6

1-2

J7

1-2

J8

1-2

J9

1-2

J12

1-2

J1

2-3

No-OS Supported Examples

The initialization data used in the examples is taken out from: Project Common Data Path

The macros used in Common Data are defined in platform specific files found in: Project Platform Configuration Path

Basic Example

This is a simple example which initializes the max22017 and configures the first channel’s AO, then recreating a triangle wave.

Values of the maximum value, frequency and increment can be changed in the basic_example.c source file.

In order to build the basic example make sure you have the following configuration in the Makefile Makefile

# Select the example you want to enable by choosing y for enabling and n for disabling
BASIC_EXAMPLE = y
IIO_EXAMPLE = n

This is an example that initializes the max22017 iio descriptor through which an IIO device is initialized as well as it’s channels then to be implemented in an iio application initialization parameter used for initializing and running an IIO app through the IIO lib. After which the client can configure the MAX22017 in every way possible througout an IIO interface such as IIO oscilloscope.

In order to build the IIO example make sure you have the following configuration in the Makefile Makefile

# Select the example you want to enable by choosing y for enabling and n for disabling
BASIC_EXAMPLE = n
IIO_EXAMPLE = y

No-OS Supported Platforms

Maxim Platform

Used hardware

Connections:

MAX22017EVKIT J201 Pin Number	Mnemonic	Function	MAX32666FTHR Pin Number
1	CS	SPI interface Chip-Select	P0_16
3	MOSI	SPI interface MOSI	P0_17
4	RSTB	Active-Low Reset PIN (GPIO)	P0_5
5	MISO	SPI interface MISO	P0_18
7	SCLK	SPI interface Serial Clock Line	P0_19
9	UGND	Ground	GND

Build Command

# to delete current build
make reset
# to build the project
make PLATFORM=maxim TARGET=max32665
# to flash the code
make run