User guide

DC 900-1338I 89

Chapter

ICP Software

Note

From the ICP’s perspective, the “host processor” can be either the

server processor of the Freeway in which the ICP resides, or the

processor of the client computer in which the ICP is embedded. In

this chapter, the term “ICP’s host” reflects this perspective.

6.1 ICP-resident Modules

The ICP-resident sample protocol software (SPS) is downloaded in addition to the sys-

tem services module. The

sps_fw_2424.mem, sps_fw_2432.mem, or sps_fw_6000.mem

module contains the task-level code and interrupt service routines. Figure 6–1,

Figure 6–2, and Figure6–3 show the SPS memory layout for the ICP2424, ICP2432,

and ICP6000, respectively.

Functionally, the sample protocol software is composed of the protocol and utility tasks

and a group of interrupt service routines. Figure 6–4 shows a block diagram of the Free-

way server and Figure6–5 shows a block diagram of the embedded ICP product.

6.1.1 System Initialization

As the last step of the SPS download (Section 4.1 on page 57), the system is initialized at

the address of a system task initialization routine that is part of the SPS module

(

sps_fw_2424.mem, sps_fw_2432.mem, or sps_fw_6000.mem). The task initialization rou-

tine loads the address of the system configuration table into register A0 and jumps to

OS/Impact’s initialization entry point (osinit). The SPS task initialization routine and

2/7/96 Ginni:

Ron suggested

sizing the

memory

layout figures;

e.g.,

Temp ora ry

Buffer is 800

while Header

Buffer is

18800. I don’t

have time

now, but

maybe next

revision.