proudly present(s) From Arduino Uno to Beagle Bone Black (and … · 2014. 4. 17. · From Arduino Uno to Beagle Bone Black (and back)! April 17, 2014. Introduction Table of Contents

SYSTEMS Consulting Training Engineering ELIABLEEMBEDDEDR

Robert BergerEmbedded Software Specialist

email:[email protected]

phone:+43 (0) 699 17 69 07 19

web:http://ReliableEmbeddedSystems.com

Buildingworld class worldwidewin/win cooperations by helping you to create better embedded software!

proudly present(s)

From Arduino Uno to BeagleBone Black (and back)!

April 17, 2014

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Introduction

Table of Contents - Section

Introduction

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Introduction

Let me introduce myself




phone:+43 (0) 699 17 69 07 19



Robert Berger is a highly respected and experienced embed-ded real-time expert and CEO of Reliable Embedded Systems,a leading embedded training consultancy. Robert consults andtrains people all over the globe on a mission to help them createbetter embedded software. He specializes in training and con-sulting for embedded systems, from small real-time systems tomulti-core embedded Linux.

Trainer for Elektor

• FreeRTOS in Theory andPractice (3 days)

• Introduction to EmbeddedLinux in Theory and Practice- a Crash Course (3 days)

• public, on-site

• remote with instructor

• in German or English

• Germany, Switzerland,Netherlands,...

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http://www.reliableembeddedsystems.com/products-and-services/training-overview/embedded-training-overview/85-embedded-training/86-freertos-in-theory-and-practice.htmlhttp://www.reliableembeddedsystems.com/products-and-services/training-overview/embedded-training-overview/85-embedded-training/86-freertos-in-theory-and-practice.htmlhttp://www.reliableembeddedsystems.com/products-and-services/training-overview/embedded-training-overview/85-embedded-training/85-embedded-linux-intro.htmlhttp://www.reliableembeddedsystems.com/products-and-services/training-overview/embedded-training-overview/85-embedded-training/85-embedded-linux-intro.htmlhttp://www.reliableembeddedsystems.com/products-and-services/training-overview/embedded-training-overview/85-embedded-training/85-embedded-linux-intro.html

Introduction

Table of Contents - Session

IntroductionBBB Arduino Board

Problem to solveFirst public announcementTechnologyWhat can you do with the board?

CodeArduino SketchLinux Code

ContactReferences

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BBB Arduino Board


BBB Arduino BoardProblem to solveFirst public announcementTechnologyWhat can you do with the board?

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BBB Arduino Board Problem to solve

Software vs. Hardware

Figure: I am one of those Figure: I am not one of those... but into Embedded Software many years, so I need custom hardware

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BBB Arduino Board Problem to solve

Creating Hardware is usually

Figure: exhausting!

• lengthy

• expensive• so I need something to

• quickly create HW• quickly check that is works

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BBB Arduino Board First public announcement

BBB Arduino board

Figure: Gotta get on of these

• On Google+• bearded guy?• orange lanyard?• the other guy has a

ponytail• can we combine them?

• Open Hardware• Schematic/PCB in Eagle• License: cba

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http://creativecommons.org/licenses/by-sa/4.0/

BBB Arduino Board Technology

Choice of technology

Figure: Google Trends

• Arduino• , popular• , easy to use (single loop)• for artists (non engineers)• / professional products

• (Embedded) Linux• , popular• , professional products• / complex

• multi-core/process• kernel/user

• key to success is hwselection + mainline sw

• make the most painless(longterm) choice

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BBB Arduino Board What can you do with the board?

Arduino + Shield/Proto

Proto Shield

13121110

98

76543210

+5V

GND

.

REV3

DIGITAL

GND

5V G

nd 9

V0

1 2

3 4

5

AREF

3V3

RES

MADE INITALY

SDASCL

178

14

ANALOG

ICSP

POWER

RESE

T

13121110

98

765432

L

5V

A0

ANAL

OG

IN

AREF

1

GND

TX RX

RESET

3V3

A1

A2

A3

A4

A5

VIN

GND

GND

DIG

ITAL

(PW

M=

)

Ardu

ino

TM

IOREF

ICSP

ICSP

2

ON

POW

ER

01 TX0

RX0

RESE

T

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J J

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Arduino + Level adj. + Shield/Proto

Proto Shield

13121110

98

76543210

+5V

GND

.

REV3

DIGITAL

GND

5V G

nd 9

V0

1 2

3 4

5

AREF

3V3

RES

MADE INITALY

SDASCL

178

14

ANALOG

ICSP

POWER

RESE

T

13121110

98

765432

L

5V

A0

ANAL

OG

IN

AREF

1

GND

TX RX

RESET

3V3

A1

A2

A3

A4

A5

VIN

GND

GND

DIG

ITAL

(PW

M=

)

Ardu

ino

TM

IOREF

ICSP

ICSP

2

ON

POW

ER

01 TX0

RX0

RESE

T

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J J

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Configuration

Figure: Jumper field

• Digital (unidirectional)• 3.3V ↔ 5V shield/Arduino

to cape/BBB• 5V ↔ 5V shield over level

adj. to Arduino• 3.3V ↔ 3.3V (don’t use)

• Analog (unidirectional)• 1.8V ↔ 5V shield/Arduino

to cape/BBB• 5V ↔ 5V shield over level

adj. to Arduino• 1.8V ↔ 1.8 V (don’t use)

• I2C 3.3V ↔ 5V birectional

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BBB + Level adj. + Shield/Proto

Proto Shield

13121110

98

76543210

+5V

GND

.

REV3

DIGITAL

GND

5V G

nd 9

V0

1 2

3 4

5

AREF

3V3

RES

MADE INITALY

SDASCL

178

14

ANALOG

ICSP

POWER

RESE

T

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J JGND

VDD_3V3EXPVDD_5VSYS_5V

SYS_RESETn

GNDVDD_3V3EXPVDD_5VSYS_5VPWR_BUT

12

910

1920

2930

3940

GPIO1_28EHRPWM1AEHRPWM1BI2C1_SDAI2C2_SDA

UART2_RXDUART1_TXDUART1_RXD

SPI1_CS0SPI1_D1

VDD_ADCGNDA_ADC

AIN5AIN3AIN1

GPIO1_7GNDGND

UART4_RXDUART4_TXDGPIO1_16I2C1_SCLI2C2_SCLUART2_TXDGPIO1_17GPIO3_21GPIO3_19SPI1_D0SPI1_CLKAIN4AIN6AIN2AIN0CLKOUT2GNDGND

GNDGPIO1_7GPIO1_3TIMER7TIMER6


12

910

1920

2930

3940

GPIO1_12GPIO0_26GPIO1_14GPIO2_1

GPIO1_31GPIO1_5GPIO1_1



GPIO1_13EHRPWM2BGPIO1_15GPIO0_27EHRPWM2AGPIO1_30GPIO1_4GPIO1_0GPIO2_22GPIO2_23UART5_CTSNUART4_RTSNUART4_CTSNUART5_TXDGPIO2_12GPIO2_10GPIO2_8GPIO2_6

P9P8

BBB

UART5_RTSNUART3_RTSNUART3_CTSNUART5_RXD

P9P8

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BBB + Cape/Proto

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J JGND


SYS_RESETn


12

910

1920

2930

3940



SPI1_CS0SPI1_D1

VDD_ADCGNDA_ADC

AIN5AIN3AIN1

GPIO1_7GNDGND




12

910

1920

2930

3940






P9P8

BBB


P9P8

GNDVDD_3V3EXP

VDD_5VSYS_5V

SYS_RESETn


12

910

1920

2930

3940



SPI1_CS0SPI1_D1

VDD_ADCGNDA_ADC

AIN5AIN3AIN1

GPIO1_7GNDGND




12

910

1920

2930

3940







P9P8

Cape

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Arduino + Level adj. + Cape/Proto13121110

98

765432

L

5V

A0

ANAL

OG

IN

AREF

1

GND

TX RX

RESET

3V3

A1

A2

A3

A4

A5

VIN

GND

GND

DIG

ITAL

(PW

M=

)

Ardu

ino

TM

IOREF

ICSP

ICSP

2

ON

POW

ER

01 TX0

RX0

RESE

T

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J J

GNDVDD_3V3EXP

VDD_5VSYS_5V

SYS_RESETn


12

910

1920

2930

3940



SPI1_CS0SPI1_D1

VDD_ADCGNDA_ADC

AIN5AIN3AIN1

GPIO1_7GNDGND




12

910

1920

2930

3940







P9P8

Cape

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Arduino + Level adj. + BBB13121110

98

765432

L

5V

A0

ANAL

OG

IN

AREF

1

GND

TX RX

RESET

3V3

A1

A2

A3

A4

A5

VIN

GND

GND

DIG

ITAL

(PW

M=

)

Ardu

ino

TM

IOREF

ICSP

ICSP

2

ON

POW

ER

01 TX0

RX0

RESE

T

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J JGND


SYS_RESETn


12

910

1920

2930

3940



SPI1_CS0SPI1_D1

VDD_ADCGNDA_ADC

AIN5AIN3AIN1

GPIO1_7GNDGND




12

910

1920

2930

3940






P9P8

BBB


P9P8

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All together

Proto Shield

13121110

98

76543210

+5V

GND

.

REV3

DIGITAL

GND

5V G

nd 9

V0

1 2

3 4

5

AREF

3V3

RES

MADE INITALY

SDASCL

178

14

ANALOG

ICSP

POWER

RESE

T

13121110

98

765432

L

5V

A0

ANAL

OG

IN

AREF

1

GND

TX RX

RESET

3V3

A1

A2

A3

A4

A5

VIN

GND

GND

DIG

ITAL

(PW

M=

)

Ardu

ino

TM

IOREF

ICSP

ICSP

2

ON

POW

ER

01 TX0

RX0

RESE

T

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J JGND


SYS_RESETn


12

910

1920

2930

3940



SPI1_CS0SPI1_D1

VDD_ADCGNDA_ADC

AIN5AIN3AIN1

GPIO1_7GNDGND




12

910

1920

2930

3940






P9P8

BBB


P9P8

GNDVDD_3V3EXP

VDD_5VSYS_5V

SYS_RESETn


12

910

1920

2930

3940



SPI1_CS0SPI1_D1

VDD_ADCGNDA_ADC

AIN5AIN3AIN1

GPIO1_7GNDGND




12

910

1920

2930

3940







P9P8

Cape

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Code



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Code Arduino Sketch

Arduino Digital Output

Proto Shield

13121110

98

76543210

+5V

GND

.

REV3

DIGITAL

GND

5V G

nd 9

V0

1 2

3 4

5

AREF

3V3

RES

MADE INITALY

SDASCL

178

14

ANALOG

ICSP

POWER

RESE

T

13121110

98

765432

L

5V

A0

ANAL

OG

IN

AREF

1

GND

TX RX

RESET

3V3

A1

A2

A3

A4

A5

VIN

GND

GND

DIG

ITAL

(PW

M=

)

Ardu

ino

TM

IOREF

ICSP

ICSP

2

ON

POW

ER

01 TX0

RX0

RESE

T

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J J

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Code Arduino Sketch

Arduino Sketch

Listing 1: BlinkWithoutDelay.ino

26 const int ledPin = 13; // the number of the LED pin27 // Variables will change:28 int ledState = LOW; // ledState used to set the LED29 long previousMillis = 0; // will store last time LED was updated30 // the following variable is a long because the time, measured in milliseconds ,31 // will quickly become a bigger number than can be stored in an int.32 long interval = 1000; // interval at which to blink (milliseconds)33 void setup() {34 // set the digital pin as output:35 pinMode(ledPin, OUTPUT); }

line 26 declares ledPin (where LED is connected to Arduino)setup() [1] line 33 called once, when the sketch startspinMode() [2] line 35 configures a digital pin as input or output

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Code Arduino Sketch

Arduino Sketch

Listing 2: BlinkWithoutDelay.ino

38 void loop() {39 unsigned long currentMillis = millis();40 if(currentMillis - previousMillis > interval) {41 // save the last time you blinked the LED42 previousMillis = currentMillis;43 // if the LED is off turn it on and vice-versa:44 if (ledState == LOW)45 ledState = HIGH;46 else47 ledState = LOW;48 // set the LED with the ledState of the variable:49 digitalWrite(ledPin, ledState); }}

loop() [3] line 38 is called over and over setup() and loop() need to beincluded in your sketchdigitalWrite() [4] line 49 makes output change state

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Code Linux Code

Linux Digital Output

Proto Shield

13121110

98

76543210

+5V

GND

.

REV3

DIGITAL

GND

5V G

nd 9

V0

1 2

3 4

5

AREF

3V3

RES

MADE INITALY

SDASCL

178

14

ANALOG

ICSP

POWER

RESE

T

11

55

1010

1515

2020

2525

3030

3535

4040

4545

5050

5555

6060

A A

B B

C C

D D

E E

F F

G G

H H

I I

J J

GNDVDD_3V3EXP

VDD_5VSYS_5V

SYS_RESETn


12

910

1920

2930

3940



SPI1_CS0SPI1_D1

VDD_ADCGNDA_ADC

AIN5AIN3AIN1

GPIO1_7GNDGND




12

910

1920

2930

3940






P9P8

BBB


P9P8

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Code Linux Code

Flat Device Tree

Listing 3: am335x-boneblack-res-1.dts: pinmux

13 /* --> define custom leds pinmux */14 &am33xx_pinmux {15 traffic_leds_s0: traffic_leds_s0 {16 pinctrl-single,pins = <17 /* .gpio1_28 , P9_12 60 $PIN: 30 OUTPUT MODE7 - traffic -1 LED */18 0x78 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)>;19 };20 };21 /*

Code Linux Code

Flat Device Tree

Listing 4: am335x-boneblack-res-1.dts: assign driver

141 /* --> define custom leds */142 pio_leds {143 pinctrl-names = "default";144 pinctrl -0 = ;145 compatible = "gpio-leds";146 led@1 {147 label = "trfcl1:red";148 gpios = ;149 linux,default-trigger = "none";150 default-state = "off";151 };152 };153 /*

Code Linux Code

Let it blink

Listing 5: am335x-boneblack-res-1.dts: assign driver

1 ...2 Poky (Yocto Project Reference Distro) 1.5.1 beagle-bone-black-ml /dev/ttyO034 beagle-bone-black-ml login: root5 $ cat /proc/version6 Linux version 3.14.0-custom-student4+ (student4@bh4) (gcc version 4.8.1 (GCC) ) #1 SMP ←↩Mon Apr 7 18:44:33 EEST 2014

7 $ cd /sys/class/leds/trfcl1:red8 $ echo timer > trigger9 $ echo 1000 > delay_on

10 $ echo 1000 > delay_off

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Contact


Contact

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Contact

Contact

• BBB/Arduino UNO Board requests:http://www.reliableembeddedsystems.com/contact-us.html

• Training requests (Physical computing with Arduino/BBBcoming soon):http://www.reliableembeddedsystems.com/contact-us.html

• subscribe to Linux trainings list:http://www.reliableembeddedsystems.com/linux-list.html

• subscribe to FreeRTOS trainings list:http://www.reliableembeddedsystems.com/freertos-list.html

• subscribe to Reliable Embedded Systems mailing list:http://www.reliableembeddedsystems.com/mailing-list.html

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http://www.reliableembeddedsystems.com/contact-us.htmlhttp://www.reliableembeddedsystems.com/contact-us.htmlhttp://www.reliableembeddedsystems.com/linux-list.htmlhttp://www.reliableembeddedsystems.com/freertos-list.htmlhttp://www.reliableembeddedsystems.com/mailing-list.html

Contact

Thank you!




phone:+43 (0) 699 17 69 07 19



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References


References

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References

References I

I ”setup()”http://arduino.cc/en/Reference/Setup

I ”pinMode()”http://arduino.cc/en/Reference/pinMode

I ”loop()”http://arduino.cc/en/Reference/loop

I ”digitalWrite()”http://arduino.cc/en/Reference/digitalWrite

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http://arduino.cc/en/Reference/Setuphttp://arduino.cc/en/Reference/pinModehttp://arduino.cc/en/Reference/loophttp://arduino.cc/en/Reference/digitalWrite

IntroductionBBB Arduino BoardProblem to solveFirst public announcementTechnologyWhat can you do with the board?


ContactReferences

proudly present(s) From Arduino Uno to Beagle Bone Black (and … · 2014. 4. 17. · From Arduino Uno to Beagle Bone Black (and back)! April 17, 2014. Introduction Table of Contents

Documents