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Tag Archives: renesas rx

App note provides a guide to Dhrystone benchmarks

Thursday, September 9, 2010

Let’s take a bit deeper look at how you can run your own MCU Dhrystone benchmarks guided by a new application note.

Filed in ICs & Discrete Semis | Also tagged ARM, arm cortex m3, Dhrystone benchmark, DMIPS per MHz, maury wright, renesas mcu, renesas rx mcu, RX-Stick, RX-Stick evaluation kit, zero wait state flash memory | Comments (0)

FPU accelerates polynomial calculations for thermocouple measurements

Wednesday, September 8, 2010

For a minimum memory footprint, and therefore minimum system cost, your design must calculate the polynomial in real-time and a floating-point unit (FPU) can greatly accelerate that task.

Filed in ICs & Discrete Semis | Also tagged ADC, analog to digital converter, floating point unit, FPU, maury wright, nonlinear equation, polynomial, renesas mcu, renesas rx mcu, thermocouple | Comments (0)

IAR Systems announces support for the RX Application Binary Interface

Thursday, September 2, 2010

Compiled code developed with Renesas and IAR tools can now be mixed and matched. Libraries, drivers, and other software developed with Renesas tools can be used seamlessly in the Embedded Workbench.

Filed in Uncategorized | Also tagged IDE, Integrated Development Environment, maury wright, Real Time Operating System, Renesas Devcon, Renesas Electronics Developers Conference, renesas mcu, renesas rx mcu, RTOS | Comments (0)

Benchmarking nested RX interrupt response including external sources

Friday, August 27, 2010

Let’s add an external interrupt into the mix and take a look at the type of response that you can get from nested interrupts.

Filed in ICs & Discrete Semis | Also tagged Fast Interrupt Function, interrupt exit time, interrupt handler, interrupt response time, interrupt service routine, ISR, maury wright, renesas mcu, renesas rx mcu, zero wait state | Comments (0)

Polynomial data table in memory offers speedy access but adds system cost

Tuesday, August 24, 2010

One alternative to solving a polynomial that represents a thermocouple in an application is to use brute force and a good math package, and create a conversion table in advance.

Filed in Uncategorized | Also tagged ADC, analog to digital converter, floating point unit, FPU, maury wright, polynomial, renesas mcu, renesas rx mcu, thermocouple | Comments (0)

Leverage FPU and ADC capabilities in control applications

Friday, August 20, 2010

An MCU with an ADC can obtain a temperature reading by using the ADC to measure the voltage output by the thermocouple. But what is the precise temperature to voltage relationship?

Filed in ICs & Discrete Semis, Uncategorized | Also tagged ADC, analog to digital converter, floating point unit, FPU, maury wright, nonlinear equation, polynomial, renesas mcu, renesas rx mcu, thermocouple | Comments (0)

Fast interrupt function and register allocation accelerate interrupt response

Tuesday, August 17, 2010

The RX includes a Fast Interrupt Function that can be utilized with one interrupt source. Moreover the large register file in the RX can slice time in the interrupt service routine (ISR).

Filed in Contributed Posts, ICs & Discrete Semis | Also tagged Fast Interrupt Function, interrupt handler, interrupt response time, interrupt service routine, ISR, maury wright, renesas mcu, renesas rx mcu, zero wait state | Comments (0)

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