Sundance SMT401 User Manual download pdf (Page 17)

Released Page 17 of 21 SMT401 PMC TIM Carrier User Guide

Document Name: SMT401 User Guide V1.2.doc Issue : 02 Rev.: 1.11

5 Sample Application

This chapter presents a sample application, to be run on one Alpha and an

attached C40, which performs case reversal on its text input. Although trivial,

it illustrates the main features of a mixed network application using the

SMT401 in attached processor mode. This section does not, explain how to

perform PCI transfers via the global bus; refer to the document "SMT401

Programming Information" described in chapter 5 of this manual.

The application is split into two tasks. The first, running on the Alpha, is the

front-end. The other runs on the attached C40 processor, and performs the

actual case reversal. The application can be represented thus:

driver

task

caserev

task

Alpha

C40

Figure 1: The Case Reversal Application

5.1 Configuration File

The configuration file describes the (minimum) physical network required by

the application and the logical connections between tasks, along with

information such as the memory requirements of each task.

PROCESSOR root TYPE=axp LINKS=5

PROCESSOR node TYPE=c40 LINKS=6 KERNEL="tim40.krn"

! The comm-port interface on SMT401

WIRE ? root[4] node[3]

TASK driver INS=1 OUTS=1 DATA=10K

TASK caserev INS=1 OUTS=1 DATA=10K

PLACE driver root

PLACE caserev node

CONNECT driver[0] caserev[0]

CONNECT caserev[0] driver[0]

Product Name: SMT401 Revision Date: 07 December 2004

Author: Mark I. Cartlidge (Updated by SM, added JTAG slave section) Original Date: 12 May 1999

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Sundance SMT401 User Manual Page 17