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DATA LOGGING PROGRAM FOR TESTING ST7 APPLICATIONS VIA ICC

1 SYSTEM HARDWARE AND SOFTWARE REQUIREMENTS

The hardware interface between the parallel port and the ICC (HE10) connector is the ST7

STICK. A block diagram of the set-up is shown in Figure 1.

Figure 1. Data Logging hardware setup

The PC software has been developed using the Microsoft Visual C++ 6.0 environment and the

ST7 software example is compatible with both Cosmic and Metrowerks C compilers. The soft-

ware has been tested with the A/D converter application on the ST72F264 and ST72F521.

The ICC monitor embedded in the ST72F264 is the advanced variant (it has additional com-

mands), the ICC monitor embedded in ST72F521 is the basic variant. The software example

works with both variants.

The process of data logging developed in this application takes advantage of the fact that

even when the ST7 is in ICC mode, it can execute the user code programmed in Flash

memory as well as the ICC commands embedded in BootROM/Sysmem.

ST7 STICK

PC COMPUTER

STVP7 DLL

ST7

APPLICATION

BOARD

(ICC ADAPTER)

PARALLEL PORT

ICC(HE10)

INTERFACE

2