SAN FRANCISCO--IAR Systems has made another notch in its Renesas
microcontroller toolbelt, rolling out a toolset for the
seven-month-old RH850 microcontroller (MCU). The announcement (Sept.
18) brings to more than 10 the number of Renesas
automotive-market-targeted MCUs IAR Systems supports.
"Automobiles can have dozens of controllers inside, and there's
quite a bit of interaction going with those processors," said Shawn
Prestridge, Senior Field Applications Engineer for IAR. "Customers
are looking at the cost of parts and the cost of development to put
system out into the market, but they're also looking at the speed in
time-to-market and speed of parts themselves."
Renesas in late February 2012
announced the RH850 family of 32-bit MCUs for automotive
applications, a superset of the old V850 architecture that Renesas
obtained when it acquired NEC's semiconductor business in April
2010. The RH850 is based on 40 nm metal oxide nitride oxide
silicon (MONOS) embedded flash technology and claims low power
consumption and high performance.
The IAR C/C++ Compiler for RH850 is based on IAR Systems’ tools for
Renesas V850 and offers several optimizations. Arithmetic libraries
have been rewritten, boosting performance, and it comes with a
new and source browser and text editor, with features including
auto-completion, code and comment folding, parameter hints, block
selection and indentation, bracket matching, and zooming, according
to IAR Systems. In addition, IAR Embedded Workbench for RH850 uses
the standard ELF/DWARF object format, and complies with Renesas ABI
(Application Binary Interface), which ensures link compatibility
between tool chains.
IAR Embedded Workbench now supports 11 Renesas MCU families from
8-bit offerings such as the H8 up to 32-bit device families such as