Oki JOB60851 user manual Sample USB Firmware, Setup, Sample Firmware Specifications

Chapter 4 Software Development

4-2. Sample USB Firmware

The JOB60851 Starter Kit includes the complete source code for use as the starting point for the user USB firmware. To see the effects of user modifications on behavior, edit the source code, compile it, link it into an executable .HEX file, and then download and execute this file with the procedure in Section 2.3 "Running User Programs."

This Section outlines the entire cycle.

4-2-1. Setup

Copy the file M851xxxx.exe from the \Usb_firm directory on the CD-ROM to a work directory-- c:\work in our example. This file is a self-expanding archive that automatically extracts the sample source code to the appropriate subdirectories shown in Table 4.2.1.

After executing this file in the work directory, open Readme.txt. This text file lists the contents of the archive. Be sure to read the disclaimer section about rights to the source code.

Table 4.2.1. Sample USB Firmware

\Work			Compiler work directory
	\Include		Include files
	\Src		Source files (shared files)
		\66573	cc665s source code for 16-bit MSM66573 microcontrollers
		\Arm	ARM-SDT source code for 32-bit ARM microcontrollers
	\Err		cc665s assembler error output directory
	\Lst		cc665s assembler listing file output directory
	\Debug		ARM-SDT debugging code output directory
	\Release		ARM-SDT release code output directory
	\traffic		Sample data for use with the Computer Access Technology
			Corporation (CATC) USB evaluation system.

4-2-2. Sample Firmware Specifications

The source code on the CD-ROM produces the sample USB firmware shipped in the MSM66Q573 Flash memory. This firmware is perfectly general code that provides the standard device request support and standard descriptors required by the USB core specifications. It does not assume any particular application. It supports the three data flow types (control, bulk, and interrupt) offered by ML60851 USB controllers.

For the detailed specifications of this sample USB firmware, refer to the text file M852.txt accompanying it in the work directory. Note that the source code supports both ML60851 and ML60852 USB controllers and that M852.txt covers the 32-bit ARM microcontroller as well as these two devices. Read only the sections applicable to the ML60851C USB controller and the 16- bit MSM66Q573 microcontroller.

n Note n

As of August 1999, operation has been confirmed only for the MSM66Q573 plus ML60851C combination. The ARM code is a preliminary version that does not compile.

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