Overcoming software development challenges by using an integrated software framework

Overcoming Software Development Challenges by Using An Integrated

Software Framework

q This webinar will be available afterwards at www.designworldonline.com & email

q Q&A at the end of the presentation q Hashtag for this webinar: #DWwebinar

Before We Start

Moderator

Aimee Kalnoskas EE World

Bud Caldwell Microchip Technology

Anand Rangarajan Microchip Technology

Presenters

Richard Barry Real Time Engineers

Overcoming software development challenges by using an integrated

software framework. MPLAB Harmony

Agenda

Embedded software development challenges MPLAB HarmonyOverview Application migration video demo using MPLAB Harmony Third Party Feature Presentation: Q&A

Challenges??? Increasing development time. On time Project Completion.

Time to Market, Competition. ($$$$$$$$$$$$)

Embedded Development Challenges Em

bedd

ed Develop

ment

Challe

nges

End Systems Sophistication Increasing Complexity of Projects Growing Development Time Stretching

S/W % Total Development Time* 60%

Switching between RTOS leads to reworkLack of software compatibility creates new bugs

Greater Risk with Re-Work of Code

Challenge to Integrate RTOS, Middleware,Drivers All in One Platform

Generally Multiple 3rd Party Software Suppliers

* 2014 UBM Embedded Market Study

Embedded Development Challenges

Increased Verication & Debug Time MeansLess time to Focus on Critical Applications

60% of Software Resource Involved in Verication**Defects Found during Verication Costs 10x More Than Found in Design***

Unpredictable Future Competitive Environments

Increasing Pressure to Quickly Adapt Economic Risks of 3rd Party Companies

Dicult to Procure all the S/W Components from Single Vendors Website

Full Feature Set Oerings are Costly Sca[ered Support for 3rd Party Oerings

Embedd

ed Develop

ment

Challe

nges

** Defect Prevention: Reducing Costs and Enhancing Quality, isixsigma Mukesh Soni*** Frequently Forgo[en Fundamental Facts about Software Engg, IEEE Robert L Glass

MPLAB Harmony Solves! MPL

AB

Harmon

y So

lutio

n

*** Frequently Forgo[en Fundamental Facts about Software Engg, IEEE Robert L Glass

Customer Code Developed in Harmony Framework has Higher Reusability

COMPLEX

ITY

RE-WORK

INCONSIS

TENCY

FRAGMEN

TED

OBSOLOSC

ENCE

Reduces Development Costs:

REDUCE!

Microchip Tested, Debugged, Interoperable Code is Ready for RE-USE

RE-USE!

Modular Architecture Enables Ecient Integration

Pre-tested Software Eliminates These Bugs

SAVE!

Single Source Support for MPLAB Harmony Code (including 3rd party solutions) by Microchip

Improved Reaction Time to Ever Changing Markets

FUTURE

PROOF!

MPLAB Harmony is a comprehensive, interoperable,

tested software developmentframework for Microchip PIC32microcontrollers.

o The frameworkintegrates both internal and 3rd party middleware, drivers, peripheral libraries andreal time operatingsystems, simplifying and acceleratingthe 32-bit code development process.

o MPLAB Harmony works within the MPLAB X IDE development environment and is supported by Microchip.

First Line of Support First line of support provided by Microchip for all Harmony

components, including third-party solutions

Comprehensive Web Portal Includes Licensing, Resale, Technical Support & Collateral

for Microchip & third-party Harmony components

What is MPLAB Harmony Flexible

InteroperableCompatible

MPLAB Harmony

ModularRe-Usable

Overview

Architecture Capabilities

Bare-Metal

AddsISR Task Processing

ISR Task Prioritization

AddsMultiple Polled Task Processing

Polled Task Prioritization

AddsRTOS Specic CapabilitiesOS Programming Model

RTOS-Based

Consistent State-Machine Format Free FormRTOS

PolledSolutions

InterruptDriven

Solutions

RTOSAgnosticSolutions

RTOSSpecicSolutions

Architecture

Software Fram

ework

Application

Applications Application Initialization

Application Logic

System Conguration

Dierent Parts of an embedded

application serve dierent purposes.

Peripheral Logic

System Initialization

System Control Logic

Middleware Logic

Middleware Initialization

Peripheral Initialization

Applications Application

Application Initialization

Application Logic

Framework


Middleware Logic


Peripheral Logic

System

System Conguration



Applications

MPLAB Harmony Libraries

System & Conguration

Code

Framework


Middleware Logic

System

System Conguration




Peripheral Logic

Your Application Code

Application

Application Initialization

Application Logic

Framework of Libraries Interface Functions

o Input, Process, Output o May have Side Effects o Treated as a Black Box

Module o One or more closely related functions o Share common data or resources o Maintain state of common resources o Interface stays the same, even if implementation changes

Provides Ability to Divide & Conquer

Multiple Clients & Instances

USART 1 USART 2

USARTDriver

Multiple Instances Dynamic library modules can manage multiple instances of same hardware. Avoids duplicating library code Simplies application or client code Requires use of an instance index

Timer 1

Timer 1Driver

TCP/IP Console File System

Multiple Clients Multiple unrelated clients can access common server modules. Localizes protection & maintenance of shared resources

Isolates clients from each other Requires use of a client handle

SW

SWSW

HW

HWHW

Multiple Clients & Instances

USART 2USART 1

USART 2Driver

USART 2Client 1

USART 1Client

USART 2Client 2

USART 1 USART 2

USARTDriver

USART 1Client 1

USART 2Client 3

USART 1Client 2

USART 1Driver

Static Multi-ClientStatic Single-Client

Dynamic Multi-Client

System Configuration

int main(void) { SYS_Initialize(); while(true) { SYS_Tasks(); } return(EXIT_VALUE); }

#define APP_TMR_HW_ID TMR_ID_3 #define SYS_CLK_FREQUENCY 0x0BEBC200 #define APP_LED_BLINKING_RATE 0x0002625A

system_config.h

system_initialize.c #pragma config FPLLODIV = DIV_1, FPLLMUL = MUL_20, FPLLIDIV = DIV_2, FWDTEN = OFF #pragma config OSCIOFNC = ON, POSCMOD = HS, FSOSCEN = ON, FNOSC = PRIPLL #pragma config ICESEL = ICS_PGx2 void SYS_Initialize( void ) { /* Call all library & application initialization routines */ }

void SYS_Tasks( void ) { /*Call all polled library & app "Tasks" routines*/ }

system_tasks.c

void __ISR ( _TIMER_3_VECTOR ) _ISR_TMR_3_stub ( void ) { /* Call the timer librarys interrupt routine */ }

system_interrupt.c

Polled Configurations

main(){ while(true) { GFX_Tasks();

TCP_Tasks();

SPI_Tasks(); }}

Interrupt Driven Configurations

_SPI1_Interrupt(){ SPI_Tasks();}

main(){ while(true) { GFX_Tasks();

TCP_Tasks();

}}

GFX_Thread(){ while(true) { GFX_Tasks(); }}

RTOS Driven Configurations

TCP_Thread(){ while(true) { TCP_Tasks(); }}

_SPI1_Interrupt(){ SPI_Tasks();}

OSAL Services

OSAL

Semaphores

Mutexes

Memory Allocation

Critical Sections

Control and Diagnostics

Multi-Thread Safety Multi-Thread

Synchronization RTOS Compatibility OS Agnostic or

Bare Metal" Light-weight

MPLAB Harmony Summary/Next steps

Modular architecture allows Drivers and Libraries to work together with minimal eortApplications can be easily ported to dierent boardsImproved Code Interoperability

Integrated single platform enables shorter development timeAble to easily add features

Faster Time to Market for Customers

Improves scalability across PIC32 Microchip parts to custom t customers requirementImproved Compatibility

Common SW platform with standard interface ensures ecient Microchip supportOne stop support for all customer needsSimplied Support

MPLAB Harmony integrates third party solutions (RTOS, Middleware, Drivers etc) into the software framework seamlessly

Enhanced 3rd party software integration

Where to get MPLAB Harmony?

Basic framework is FREE!Select Tools & Libraries have a premium.Pricing

Download MPLAB Harmony at www.microchip.com/Harmony

MPLAB Harmony Application Migration Demo

Application Overview Basic graphics application

with USB and file system services.

D4 on Display is synced up with on board LED D4.

Display prompts the user to

insert the USB drive. Once the USB Pen drive is

inserted, the applications reads a le and displays the text on the screen.

Application Overview

On USB Pen drive insertion, the applications reads a le from the drive and displays the text on the screen.

Application Migration Platforms PIC32MZ Embedded Connectivity Starter kit + PIC32 Multi-media Expansion Board II (MEB II)

PIC32 Ethernet Starter kit II + PIC32 Multi-media Expansion Board (MEB I)

Microcontroller : PIC32MZ2048ECH144 (200 MHz, 2 MB Flash and 512 KB RAM)

Low Cost Controller less Graphics (L.C.C.G). 4.3" WQVGA PCAP touch display

Microcontroller : PIC32MX795F512L (80 MHz, 512KB Flash and 128 KB RAM)

Solomon Systech Graphics Controller (SSD1926) 3.2 color TFT touch-screen QVGA display

Microcontroller : PIC32MZ2048ECH144 (200 MHz, 2 MB Flash and 512 KB RAM)

Low Cost Controller less Graphics (L.C.C.G). 4.3" WQVGA PCAP touch display

Application Migration Summary

Microcontroller : PIC32MX795F512L (80 MHz, 512KB Flash and 128 KB RAM)

Solomon Systech Graphics Controller (SSD1926) 3.2 color TFT touch-screen QVGA display

v Application Migration with just some basic configuration changes . v Not a single line of code needed to be written. v Efficient, time-saving.

PIC32MZ Embedded Connectivity Starter kit + PIC32 Multi-media Expansion Board II (MEB II)

PIC32 Ethernet Starter kit II + PIC32 Multi-media Expansion Board (MEB I)

Value Proposition

FreeRTOSs compelling value proposition, which has made it the market leading RTOS in the MCU space, is delivered directly to Microchip customers within the Harmony ecosystem

High quality C source code under strict quality control

Safety critical version ensures dependability

Tutorial books and training to educate engineers

Pre-congured example projects

Free rst class support

Large/growing user base and community (>113K downloads in 2014)

Peace of mind - low cost commercial options can be taken at any time

= A low total cost of ownership, risk free, & compelling solution

Ease of Use Benefit #1 Automatic inclusion of correct

source files

Ease of Use Benefit #2 Automatic creation of

configuration file


system interrupts No need for any assembly

coding


system tasks

Developer Support

MPLAB Harmony Configurator- graphical system and middleware configuration

Attend the Second Webinar of the MPLAB Harmony series to learn: v In depth Hands-on Demo of MPLAB Harmony

Configurator. v Integrating Network Connectivity in an embedded

design. Featured Ecosystem Partner:

May 20 2015 2-3pm EST

MPLAB Harmony Ecosystem

Attend the third Webinar of the MPLAB Harmony series to learn: v Benefits of using MPLAB Harmony for integrating

third party solutions. v How MPLAB Harmony simplifies software purchase

and eases support. Featured Ecosystem Partner:

May 27 2015 2-3pm EST

Questions?

Bud Caldwell Microchip Technology www.microchip.com/harmony

Aimee Kalnoskas EE World [email protected]

Anand Rangarajan Microchip Technology www.microchip.com/harmony

Richard Barry Real Time Engineers Ltd. www.FreeRTOS.org/contact

Thank You q This webinar will be available at

designworldonline.com & email

q Tweet with hashtag #DWwebinar

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