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ARM has announced the launch of the innovative Cortex™-M4 processor to provide a highly efficient solution for digital signal control (DSC) applications, while maintaining the industry leading capabilities of the ARM® Cortex-M family of processors for advanced microcontroller (MCU) applications.
The outstanding combination of high-efficiency signal processing functionality with the unmatched low-power, low cost and ease-of-use benefits of the Cortex-M family processors is designed to satisfy the emerging category of flexible solutions specifically targeting the motor control, automotive, power management, embedded audio and industrial automation markets.
The Cortex-M4 processor features a single-cycle multiply-accumulate (MAC)unit, optimized single instruction multiple data (SIMD) instructions, saturating arithmetic instructions and an optional single precision Floating-Point Unit (FPU). These digital signal control features build upon the innovative technology that characterizes the ARM Cortex-M family of processors. These features include a 32-bit core capable of 1.25DMIPS/MHz for high performance, Thumb®-2 instructions for optimum code density and a Nested Vector Interrupt Controller for outstanding interrupt handling. In addition, the processor features an optional Memory Protection Unit (MPU), low cost debug/trace and integrated sleep states for increased flexibility. Embedded developers will be able to rapidly design and deliver compelling end-products with maximum functionality and the absolute minimum power and area footprint.
ARM adds DSP to Cortex microcontrollers
24-Feb-2010
ARM has developed a version of the Cortex-M3 core now used a variety of 32bit microcontrollers that adds digital signal processing (DSP) instructions found on the more expensive and complex R4 in a bid to encourage microcontroller users over from architectures such as Atmel’s AVR.
OSADL has announced the release of the "Latest Stable" Linux mainline real-time kernel based on Linux 2.6.31.
New in RT Linux
* RCU performance updates
* Fix incorrect column headers in tracer output, fix trace_marker output
* Prevent user space programs from crashing the kernel using an invalid futex call
* Scheduler optimizations
* The wakeup latency histograms are back
* Histogram of wakeup timer delays added
Fixes
* Make SCHED_FIFO POSIX-compliant
* Workaround to make priority ceiling using pthread_attr_setinheritsched() POSIX-compliant,
more work still needed in mainline
* Fix incorrect task states in tracer output
* Fix missed preemption points when tracing enabled
* Many fixes in various parts of the kernel
DS5: Embedded Linux Development tools from ARM
01-March-2010
ARM has released Embedded Linux development tools for ARM based platform. DS-5 is built around an Eclipse-based integrated development environment (IDE) that offers support for multiple workspaces and projects, and provides C/C++ and assembler code editing functions. In addition, DS-5 supplies a GNU Compiler (GCC) 4.4.1-based compiler with enhanced support for Cortex-A5, Cortex-A8, and Cortex-A9 cores, says ARM.
This tool can be downloaded from KEIL website as trial. The trial period start from the 2 March and ends at the 30 September, 2010. It can be installed on Windows or Linux hosts and requires no license key.
Silicon Labs is really doing great job for 8051 architecture. this time they come up with new 8051 chip integrated with RF module. And these processor are low power chips. Their new family name is Si 100x/1x.
The Si100x/1x wireless MCU family is the industry’s lowest power single-chip MCU with an integrated sub-GHz RF transceiver and designed to address the specific requirements of low power embedded systems requiring an RF bi-directional communication link:
> Smart metering
> In-home utility monitoring
> Wireless security panels
> Wireless sensors
> Home and building automation
> Access control
Having the lowest system power allows customers to achieve their design objectives, whether it be for longer battery life, higher product performance or lower system cost. The Si100x/1x wireless MCU family features the industry’s lowest active mode current consumption, which saves power when the application is running. It also has the industry’s lowest current consumption sleep modes that save power when the device is sleeping, which is typically the majority of time in most battery powered applications.
The Si100x wireless MCU family offers devices configured with either 64 K or 32 K of on-board Flash memory and a maximum transmit output power of +13 or +20 dBm. The Si1004 and Si1005 devices also include an integrated DC-DC boost converter with a switching efficiency of up to 90%, which can greatly increase system battery life.
Company also offer Si1000 Wireless MCU Development Kit.
