Ceibo's FE-WRD2 is a development system that supports Winbond W78(L)E516, W78E58B, W78L58, W78E858, W78E365, W78ERD2 microcontrollers. It is serially linked to a PC or compatible systems and can emulate the microcontrollers using the built-in clock generator. Emulation is carried out by loading the system with the user software into the microcontroller flash memory.
Three working modes are available: emulation, simulation and in-circuit simulation. Emulation mode is the only realtime mode and the user software is executed transparently and without interfering with the microcontroller speed. Breakpoints can be added to stop program execution at a specific address. Realtime trace is available.
The simulation and in-circuit simulation modes do not implement all the chip options and it is intended only for software debugging of the basic 8051 functions. The system should be used in emulation mode as simulation modes are not realtime.
The simulation mode is used to debug the software without any hardware. FE-WRD2 may be disconnected while using the simulation mode. In the in-circuit simulation mode an additional microprocessor is used to take control of the microcontroller lines and to simulate its operation but not in realtime. This operating mode allows access to all the microcontroller functions (I/O, timers, etc) and interacts with the hardware according to the user software execution or directly by means of emulator commands sent from the host computer. The Trace, Complex Breakpoints, Performance Analyser and many other useful functions are enabled in the in-circuit simulation mode.
The software includes C/C++ and Assembler Source Level Debugger, On-line Assembler and Disassembler, Trace, Conditional Breakpoints and many other features. Free limited versions of C/C++ compiler and Assembler are included in the kit.
The system is supplied with two Windows debuggers, RS232 cable and a power supply. Two debuggers are available: Ceibo Debugger V3.xx and Ceibo FE-WRD2 Debugger V1.xx (a more simple but powerful debugger).
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