Section 3. Software Module Descriptions - Motorola USB08 Reference Manual

Designer Reference Manual — USB08 Evaluation Board
3.1 Contents
3.2 Introduction
USB08 Evaluation Board
MOTOROLA

Section 3. Software Module Descriptions

3.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.3 General Structure of the M68HC08 Firmware . . . . . . . . . . . . . 44
3.4 How to Build the Compiler Project . . . . . . . . . . . . . . . . . . . . . . 45
3.5 Main Module U08MAIN.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
3.6 Interrupt and Reset Vector Module VECJB8.C. . . . . . . . . . . . . 49
3.7 C Startup Module CRTSJB8.S . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.8 Push Button Module U08KEY.C . . . . . . . . . . . . . . . . . . . . . . . .50
3.9 LED Control with U08LED.H. . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.10 Software ADC Module U08ADC.C . . . . . . . . . . . . . . . . . . . . . . 52
3.11 RS232 Communication Module U08232.C. . . . . . . . . . . . . . . . 54
3.12 USB Communication Module U08USB.C . . . . . . . . . . . . . . . . . 56
3.13 Compiler Specific Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . 57
This section describes the structure and interaction of the software
modules. These software modules, running on the Motorola
microcontroller MC68HC908JB8, form the firmware of the USB08
reference design.
Software Module Descriptions
Designer Reference Manual
43