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Moxa C Programmable RTU Controllers Programmer's Guide

6-2

Flash Memory

Partition sizes are hard coded into the kernel binary. The flash memory map is shown in the following table.

Total Size Contents Location Access

System Space 20 MB Boot Loader 0x80000000 to

0x80080000

Read Only

Linux Kernel 0x80080000 to

0x80400000

Root File System (JFFS2) 0x80400000 to

0x81400000

User Space 12 MB User directory (JFFS2) 0x81400000 to

0x82000000

Read/Write

If the user file system is incorrect, the kernel will change the root file system to the kernel and use the default

Moxa file system. To finish the boot process, run the init program.

NOTE

1. The user file system is a complete file system. Users can create and delete directories and

files (including

source code and executable files) as needed.

2. Users can create the user file system on the host PC or the target platform and copy it to the ioLogik

W5348-C series or the ioPAC 8020-C series.

C Library

The ioLogik W5348-C series and ioPAC 8020-C series both support control devices with Moxa APIs. Users will

need to include libmoxa_pgm.h to use the following Moxa APIs.

APIs

For details on APIs, refer to Chapter 2 of “Developer’s Guide for Moxa RTU Controllers.”

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Moxa Technologies 331 Manuel d'utilisateur Page 63