Description

The ST7 real-time development tools consist of various hardware and software components, which together form a flexible and sophisticated system designed to provide comprehensive development support for the ST7 family of MCUs. The Hardware Development System (HDS) main frame is common to all ST7 devices and, in conjunction with various Dedication Board Emulators (DBE), allows emulation and development of specific devices. The development system is controlled by a Host PC on which a choice of Windows-based software may be run. The STVD7 Windows GNU Debugger software suite is supplied as standard issue with the Emulator hardware, in addition to the conventional DOS ST7 Software suite, which includes a macroassembler, a linker/loader. Third party C Toolchain and Debugger software is also available. Once assembled, and/or compiled and linked, the application software may be downloaded to the real-time emulation memory, which can be configured, mapped and modified as required by the user. The device probe is then connected to the application target hardware in place of the MCU and real-time emulation of the target application can begin, thus allowing sophisticated testing and debugging of both application hardware and software.

Specifications and features

■ A common Hardware Development System mainframe supports the entire ST7 family of MCUs, in conjunction with the appropriate ST7xxx-DBE Dedicated Board Emulator.
■ Real-time source level emulation allows viewing and breakpoint setting on high level source code rather than on disassembled target code for optimum user friendliness.
■ 64 KBytes of user modifiable and configurable emulation RAM, allows memory mapping of all ST7 family devices as well as modelling hypothetical memory configurations.
■ Unlimited breakpoints may be set for any op code fetch or any address access, and conditions may be defined for the generation of 2 external synchronization signals.
■ 1K by 32-bit wide trace memory for Logic Analyzer allows complex and sequential events to be defined on any combination of address and data, as well as 3 internal and 5 external logic signals.
■ Logic Analyzer events may trigger a breakpoint or simply define data capture parameters, in accordance with user preferences.
■ Simple connection of the emulator system to the Host PC via RS-232 serial channel or via parallel port1)
■ Emulation system may be driven by a Windows based GNU debugger software or DOS software running on host PC, allowing full control and monitoring of hardware resources.
■ Multiple windows allow concurrent real-time display of source code, MCU resources, internal registers, trace data, etc.
■ Log files allow storage and subsequent redisplay of any displayed screen for subsequent analysis.
■ Command files can be used to execute a set of debugger commands in batch mode.
■ Editable configuration files ensure tailoring of working environment to user preferences.

Application Scenarios

The ST72T272K4M6 electronic component model has various application scenarios such as real-time development support for the ST7 family of MCUs. It is widely used for emulation and development of specific devices. The hardware development system (HDS) main frame is compatible with all ST7 devices and can be controlled by a host PC running Windows-based software. The emulator hardware includes the STVD7 Windows GNU Debugger software suite and the DOS ST7 Software suite. Additionally, third party C Toolchain and Debugger software is available. The model allows for testing and debugging of application hardware and software through real-time emulation.

Comparison

- A common Hardware Development System mainframe supports the entire ST7 family of MCUs.

- Real-time source level emulation allows viewing and breakpoint setting on high level source code.

- 1K by 32-bit wide trace memory for Logic Analyzer allows complex and sequential events to be defined.

- The STVD7 Windows GNU Debugger software suite is supplied as standard issue with the Emulator hardware, in addition to the conventional DOS ST7 Software suite.

- Third party C Toolchain and Debugger software is available, but not included.

- The ST72T272K4M6 model requires a connection to the Host PC via RS-232 serial channel or parallel port.