AMC 68VZ328 software manual Using Analog and Digital I/O with, IOdimm

D4	Application Note 5
	Using Analog and Digital I/O with the
	IOdimm
June 30, 2003	Version 0.1
Author: Bernice Lau

Introduction

The IOdimm is designed to support dedicated analog and digital I/O. There are 8 analog inputs, 2 analog outputs, 8 digital inputs and 4 digital outputs. All of these I/O channels are accessible from the dimmPCI backplane. User-space programs interact with the I/O channels through a device driver using standard system calls.

Requirements

•dimmPCI passive backplane

•IOdimm 2.0 or higher

•SDK 2.05 or higher (2.0.38 or higher kernel source and filesystem)

•sample programs in SDK /opt/samples/card_specific/iodimm o fir.c

o xor_iodimm.c

o even_parity_iodimm.c

Kernel and Filesystem Configuration

The uClinux 2.0 kernel must have the IOdimm SPI option compiled for proper operation. These options will be set using the kernel configuration

cd /opt/uClinux/linux make menuconfig

Using this main menu, under Platform dependent setup the following options must be selected

SPI support for IOdimm

ADC MAX1203

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