A new board from Crossware works double-time as a starter kit and in-circuit debugger for Atmel's range of flash micros. The kit, which consists of an evaluation board fitted with an Atmel T89C51RD2 microcontroller, includes a header cable, which facilitates the in-circuit debugging, a 4KB version of Crossware's 8051 Development Suite, a serial cable, and main power supply.
The 8051 Development Suite includes a serial port debug monitor tailored to the byte reprogrammability of the Atmel T89C51RD2. It can be compiled and downloaded to the evaluation board to provide source-level debugging. The debug monitor can also be modified using Crossware's point-and-click code creation wizards, which allow the programmer to adjust clock characteristics and baud rate and to select the timer that will drive the UART. Changes such as these require no calculations or additional code.
On the evaluation board, LEDs display the activity of all port pins, and an IDC connecter allows that board to connect to other application boards or systems. The header cable connects the board to the 40-pin socket of another target system in place of the controller on that board. In this way, the T89C51RD2 takes over control of the target system and functions as an in-circuit debugger.
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