6 entries tagged with #Ada Tasking Profiles

by Pat Rogers

Task Suspension with a Timeout in Ravenscar/Jorvik

This blog entry shows how to define an abstract data type that allows tasks to block on objects of the type, waiting for resumption signals from other components, for at most a specified amount of time per object. This "timeout" capability has been available in Ada from the beginning, via select statements containing timed entry calls. But what about developers working within the Ravenscar and Jorvik tasking subsets? Select statements and timed calls are not included within either profile. This new abstraction will provide some of the functionality of timed entry calls, with an implementation consistent with the Ravenscar and Jorvik subsets.

#Ada #Tasking #Ravenscar #Jorvik #Timeouts #Timing_Event #Suspension_Object

by Pat Rogers

An Introduction to Jorvik, the New Tasking Profile in Ada 2022

The Ada 2022 draft defines a new tasking profile named Jorvik (pronounced “Yourvick”), based directly on the standard Ravenscar profile. Jorvik relaxes certain restrictions in order to increase expressive power for real-time/embedded Ada and SPARK applications. We will explore the details in this blog entry.

#Ada Tasking Profiles #Jorvik #Ravenscar #Ada 2022 #Real-Time #Embedded

by Pat Rogers

On the Benefits of Families ... (Entry Families)

Ada has a concurrency construct known as “entry families” that, in some cases, is just what we need to express a concise, clear solution.

#Ada #Concurrency #Entry Families

by Jonas Attertun

Make with Ada 2017: Brushless DC Motor Controller

This project involves the design of a software platform that provides a good basis when developing motor controllers for brushless DC motors (BLDC/PMSM). It consist of a basic but clean and readable implementation of a sensored field oriented control algorithm. Included is a logging feature that will simplify development and allows users to visualize what is happening. The project shows that Ada successfully can be used for a bare-metal project that requires fast execution.

#Makers #MakewithAda #STM32 #Embedded

by Fabien Chouteau

Ada on the first RISC-V microcontroller

Updated July 2018

#Embedded Development #Ada #RISC-V

by Fabien Chouteau

Make with Ada: ARM Cortex-M CNC controller

I started this project more than a year ago. It was supposed to be the first Make with Ada project but it became the most challenging from both, the hardware and software side.

#Makers #Ada #STM32 #ARM #Embedded Development