San Jose, Calif. Renesas Technology America, Inc. is readying its E8a emulator, an ultra-small tool for debugging embedded
systems and programming Renesas microcontroller's on-chip flash memory.
The new support tool, which replaces the E8 model, allows C source-level debugging with a microcontroller in the Renesas M16C, H8/Tiny or H8/Super Low Power series, operating at full speed in the system. The E8a can also be used as a programmer to load code into the internal flash memory, when combined with the Flash Development Toolkit (FDT) software provided by Renesas.
Ease of Use
The E8a emulator inherits the ease of use and all the emulation
functions of the E8 emulator, but differs in several respects. Its
flash memory programming functionality has been greatly expanded to
cover previously unsupported Renesas products, including SuperH
family and H8S family microcontrollers. Moreover, its programming
operating voltage range has been extended down from 3V-5V to 1.8V-5V,
and a clock oscillator has been added to enable asynchronous communication in line with a microcontroller's operating frequency. Finally, the E8a's plastic case, which is made from a biodegradable
material is about 60 percent
smaller in volume, measuring only 92mm x 42mm x 15mm, and requires
about 30 percent less space.
Like the E8, the new E8a emulator uses the dedicated debugging
resources built into the Renesas microcontroller in the actual system
hardware, and it connects to that system via a 14-pin interface that
can be used both to debug the system and to program the microcontroller's on-chip flash memory. A plug-and-play USB v2.0
(full-speed)/v1.1 compatible interface allows easy connections to a
notebook or desktop Windows compatible PC running the Renesas
High-performance Embedded Workshop integrated development environment
with complete set of software tools, and the FDT programming utility.
The emulator operates in bus-powered mode using the USB power supply, eliminating the need for a separate power cable. It can supply up to 300mA at 3.3V or 5.0V to the system to which it is connected.
When the E8a is used as an emulator for real-time system debugging
in the R8C/Tiny Series, for instance, it allows access to all the
device's on-chip debug capabilities such as 255 software breakpoints,
four hardware breakpoints including data and address matches, one
forced breakpoint and a branch-origin PC trace of the last four
instructions before a break (where supported by the on-chip hardware).
It also allows referencing and modification of memory, on-chip I/O,
and memory contents while a program is being executed.
When the E8a is used to write to on-chip flash memory, the FDT
software utility on the PC implements features such as automatic
disconnection after programming and automated operation controlled by
a script (command-based batch processing). Other useful functions are
available that can also be applied to volume production processes.
The emulator will be priced at $125. It is slated to be available in the second quarter of 2007.
Renesas Technology , (408) 382-7407
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