The Minister of Education has stated that South Africa needs to improve on its technical skills to be able to compete in the world market. According to Sivan Electronic Supplies, one way to do this is to improve on the teaching aids in varsities and technikons. A tool that could help students in their engineering studies is manufactured by German embedded design specialist Ceibo.
Ceibo's DB-51 is a high-performance system design board dedicated to the Philips 80C51 family of microcontrollers. The DB-51 provides an easy-to-use flexible instrument which enables the user to build a primary prototype, analyse and debug it, make changes and continue debugging. Ceibo says that design decisions can be improved by using the DB-51 to check and test the advantages of several different microcontrollers. The tool is also a highly suitable training and tutorial aid for becoming familiar with designs that use the 80C51 architecture. It should be noted that the DB-51 is not intended to replace a full emulator system in complex microcontroller designs, but it can be used as a target with an emulator.
Technical details
The DB-51 provides 32K of User Code RAM which permits downloading and modifying of user's programs. Breakpoints allow real-time program execution until an opcode is executed at a specified address. A complete set of conditional breakpoints permits halting program emulation on code addresses, source code lines, access to on-chip memory, ports and register contents.
Three software packages are included: C51DB, DW51 and DB51. The C51DB is the most advanced debugger and is the recommended software package for working with DB-51. The DW51 program is based on pull-down menus, while DB51 software is based on line-commands. On-line Assembler and Disassembler are provided together with upload and download capabilities of hexadecimal and object files. Also, DB-51 includes the following functions: Source Level Debugger for PLM and C, Software Trace, Conditional Breakpoints, Performance Analyzer and a unique Assembler Debugger.
The DB-51 gives full support for debugging directly in PLM and C source code. A 64 KB buffer is used to record any software and hardware events of a program, such as executed code, memory accesses, port and internal register states, on-chip data memory and others. The DB-51 accepts files generated by Intel software (Assembler, PLM) or compatibles in Hex or Object formats. Other assemblers and high-level languages such as C with Intel OMF51 compatible format (Keil, IAR, etc) are also supported.
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