Maxim Integrated MAXREFDES132 Bedienungsanleitung



System Board 6304

MAXREFDES132#: 1-Wire Shield



MAXREFDES132#providesaconvenientplatformforinterfacingwith1‐Wire

devices,1‐WireEvaluation

Kits(EVkits),andiButton

devicesusingtheDS2484I

C‐to‐1‐Wiremaster,orabit‐bangmasteronD2of

theArduinoform‐factorpinout.

Features



DS24841‐Wiremaster



F5iButtonsocket



6P6CRJ‐11jack



mbed.orglibraryandArduinolibraries



Arduino

shieldformfactor

Competitive Advantages



Portable



Compact



Flexible



Costeffective

Applications



1‐WireNetwork



DataLogging



RapidPrototyping

Introduction

Maxim’s 1-Wire bus continues to flourish in the era of IoT. This unique protocol provides

communication and power along a single wire, at relatively long distances. Now, with

MAXREFDES132#, Maxim merges a reliable, hardware based 1-Wire master with Arduino and

mbed.org platforms.

MAXREFDES132# provides a convenient platform for interfacing with 1-Wire devices, 1-Wire

EV kits, and iButton through the DS2484 I

C-to-1-Wire master, or a bit-bang master on D2 of

the Arduino form-factor pinout. Both masters are supported by the ARM

mbed

™

OneWire

Library and the Arduino Library. Bit Banging is only supported on the MAX32600MBED

platform, the DS2484 I

C-to-1-Wire master can be used on any mbed platform.



SystemDiagram



Figure1.TheMAXREFDES132#referencedesignblockdiagram.

Detailed Circuit Description

Figure 1 is a block diagram of MAXREFDES132#.

The MAX3394E two-channel bidirectional level-translator provides compatibility between 5V

and 3.3V platforms using the IOREF pin of the Arduino form factor.

The DS2484 I

C-to-1-Wire master provides internal user-adjustable timers that relieve the

system host processor from generating time-critical 1-Wire waveforms, supporting both standard

and overdrive 1-Wire communication speeds. In addition, the 1-Wire bus can be powered down

under software control through D3 of the Arduino form-factor pinout.

D2 can be used to bit bang the 1-Wire bus by installing JP1 on pins 1-2 and installing JP2 to

connect the provided pullup to the bus. Bit Banging is only supported by the OneWire Library on

mbed for the MAX32600MBED board.

Detailed Description of Firmware

A OneWire Library that supports all of our silicon masters from one common API has been

developed for ARM Cortex

-M micros using the online development environment mbed.org.

The library and example programs can be found at the following links.

https://www.mbed.com/en/



mbed.org

Libraryhttps://developer.mbed.org/teams/Maxim‐Integrated/code/OneWire/

DemoProgramhttps://developer.mbed.org/teams/Maxim‐

Integrated/code/MAXREFDES132_OneWire_Demo/



Arduino

Libraryhttps://github.com/MaximIntegratedRefDesTeam/OneWire

ExampleprogramsforArduinocanbefoundinthelibrarydownloadfolder

OneWire/examples

The demo program iterates through the devices on the 1-Wire bus, and prints their 64-bit ROM

IDs to a terminal. If the DS1920 is found, a temperature conversion is executed and the

temperature is displayed in the terminal.

Figure 2. Demo program flow chart.

Quick Start

Required equipment:

Windows®PCwithaUSBport

MAXREFDES132#

CompatibleArduinoform‐factormbedplatform

Procedure

The reference design is fully assembled and tested. Follow the steps below to verify board

operation.

mbed.org

1. ConnectMAXREFDES132#toyourplatform.

2. EnsureJP1andJP2areconfiguredproperlyforthe1‐Wiremasteryouwouldliketouse.

1. DS2484:JP1onpins2‐3,JP2removed.

2. BitBang:JP1onpins1‐2,JP2installed.BitBangisonlysupportedonMAX32600MBED

platform.

3. InstalltheprovidedDS1920iButton,orusersupplied1‐Wiredevice.

4. ConnectUSBcablefromthePCtoyourplatform.

5. Ifyouhaveneverusedmbed,setupanaccountandaddyourplatformtoyouronlinecompiler

accordingtotheinstructionsonyourplatform'sproductpage.

6. IfyouareusingWindowsandhaveneverusedserialcommunicationsbetweenyourPCandyour

mbedplatform,followtheinstructions.https://developer.mbed.org/handbook/Windows‐

serial‐configuration

7. Navigateyourbrowsertothefollowinglink.https://developer.mbed.org/teams/Maxim‐

Integrated/code/MAXREFDES132_OneWire_Demo/

8. Clickthe'Importthisprogram'buttonandimportthedemoasa'program'

9. Ensurethatthe#defineforthe1‐Wiremasteryouwanttouseisuncommentedandallothers

commentedout

10. Compileanddownloadtheresultingbinarytoyourplatform.

11. OpenHyperterminal,oryourfavoriteterminalemulatortofindtheappropriateCOMportfor

yourplatform,andconfiguretheconnectionfor9600bps,8‐N‐1withnoflowcontrol.

12. Ensuretheterminalisconfiguredfor'Auto'receiveand'CR+LF'transmit.

13. Presstheresetbuttononyourplatformandexercisethedemo.

Arduino

1. DownloadtheOneWireLibraryandinstallittoyourlibrariesfolderfollowingthedirections.

https://github.com/MaximIntegratedRefDesTeam/OneWire

https://www.arduino.cc/en/Guide/Libraries

2. ConnectMAXREFDES132#toyourArduinoboard.

3. EnsureJP1andJP2areconfiguredproperlyforthe1‐Wiremasteryouwouldliketouse

1. DS2484–JP1onpins2‐3,JP2removed

2. Bit‐Bangmaster–JP1onpins1‐2,JP2installed.

4. InstalltheprovidedDS1920iButton,orusersupplied1‐Wiredevice

5. ConnectUSBcablefromthePCtoyourArduinoboard.

6. EnsurethatyouhavetheCOMportthatyourArduinoboardisconnectedtoselectedinthe

ArduinoIDE.

7. DownloadtheexampleprogramtoyourArduinoboardandopentheSerialterminal.



1‐WireisaregisteredtrademarkofMaximIntegratedProducts,Inc.

ArduinoisaregisteredtrademarkofArduinoLLC.

ARM,Cortex,andmbedareregisteredtrademarksofARMHoldings.

iButtonisaregisteredtrademarkofMaximIntegratedProducts,Inc.

WindowsisaregisteredtrademarkandregisteredservicemarkofMicrosoftCorporation.

Inhaltsverzeichnis

Andere Maxim Integrated Mikrocontroller Handbücher

Maxim Integrated

Maxim Integrated MAX31782 Bedienungsanleitung

Maxim Integrated

Maxim Integrated DS5000-32-16 Bedienungsanleitung

Maxim Integrated

Maxim Integrated MAX32650 Bedienungsanleitung

Maxim Integrated

Maxim Integrated MAX32660 Bedienungsanleitung

Maxim Integrated

Maxim Integrated MAX9276ACOAXEVKIT Bedienungsanleitung

Maxim Integrated

Maxim Integrated DS34S132DK Bedienungsanleitung

Maxim Integrated

Maxim Integrated MAX32600 Bedienungsanleitung

Maxim Integrated

Maxim Integrated MAXREFDES132 Bedienungsanleitung

Maxim Integrated

Maxim Integrated Alameda MAXREFDES24# Bedienungsanleitung

Maxim Integrated

Maxim Integrated MAX32664 Bedienungsanleitung

Maxim Integrated

Maxim Integrated MAXREFDES99 Bedienungsanleitung

Beliebte Mikrocontroller Handbücher anderer Marken

AMS

AMS AS7261 Demo Kit Bedienungsanleitung

Novatek

Novatek NT6861 Bedienungsanleitung

Espressif Systems

Espressif Systems ESP8266 SDK Einrichtungshandbuch

Nuvoton

Nuvoton ISD61S00 ChipCorder Leitfaden

STMicrolectronics

STMicrolectronics ST7 Assembler Linker Bedienungsanleitung

Texas Instruments

Texas Instruments Chipcon CC2420DK Bedienungsanleitung

Lantronix

Lantronix Intrinsyc Open-Q 865XR SOM Bedienungsanleitung

NEC

NEC 78GK0S/K 1+ Series Montage- und Bedienungsanleitung

Mikroe

Mikroe SEMITECH N-PLC Click Montage- und Bedienungsanleitung

Intel

Intel Agilex Bedienungsanleitung

Cypress

Cypress CY4607 HX2VL Bedienungsanleitung

DIGITAL-LOGIC

DIGITAL-LOGIC MICROSPACE Bedienungsanleitung

Texas Instruments

Texas Instruments TMS320F2837 D Series Bedienungsanleitung

CYPRES

CYPRES CY14NVSRAMKIT-001 Bedienungsanleitung

Texas Instruments

Texas Instruments INA-DUAL-2AMP-EVM Bedienungsanleitung

Espressif Systems

Espressif Systems ESP8266EX Betriebsanleitung

Abov

Abov AC33M8128L Bedienungsanleitung

Laird

Laird BL654PA Bedienungsanleitung