Ceibo's FE-W7 is a development tool that supports almost all 8051 derivative microcontrollers from Winbond (Winbond W77xxx or W78xxx) at any frequency allowed by the devices. It is serially-linked to a PC or compatible systems and can emulate the microcontrollers using any clock. Emulation is carried out by loading the system with the user software and an embedded monitor program.
The FE-W7 tool locates the monitor in the upper 3 K of the code memory space. The system uses standard devices for realtime and transparent emulation. The emulator is not frequency or voltage restricted, so it can be used to emulate the microcontroller in the complete range of parameters defined by the device.
Three working modes are available: realtime, in-circuit simulation and simulator. In the realtime mode, 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. The in-circuit simulation is used to provide a trace function by slowing down the emulation speed; instructions are executed by the simulator, except the peripheral-related instructions. FE-W7 may be disconnected while using the simulation mode.
The software includes a C and assembler source level debugger, an online assembler and disassembler, a limited C compiler and a number of other features. The system is supplied with Windows debugger software, RS232 cable power supply, mechanical adapters and other accessories.
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