Renesas RL78 Series Manuale utente

All information contained in these materials, including products and product specifications,

represents information on the product at the time of publication and is subject to change by

Renesas Electronics Corp. without notice. Please review the latest information published by

Renesas Electronics Corp. through various means, including the Renesas Electronics Corp.

website (http://www.renesas.com).

Renesas Demonstration Kit (RDK) for RL78

User’s Manual: Hardware

RENESAS MCU

RL78 Family

Release 1.0

Disclaimer

ByusingthisRenesasDemonstrationKit(RDK),theuseracceptsthefollowingterms.TheRDKisnotguaranteedtobe

errorfree, and theUser assumes the entire risk as to the resultsandperformanceof the RDK. The RDK is provided by

Renesason an “as is”basis withoutwarrantyof any kind whether express or implied, including butnot limited to the

implied warranties of satisfactoryquality, fitness for a particular purpose, title and non-infringement of intellectual

propertyrightswithregardtotheRDK.Renesasexpresslydisclaimsallsuchwarranties.Renesasoritsaffiliatesshallin

noeventbeliableforanylossofprofit,lossofdata,lossofcontract,lossofbusiness,damagetoreputationorgoodwill,

any economic loss, anyreprogramming or recall costs (whether the foregoing losses are direct or indirect) nor shall

Renesasoritsaffiliatesbeliableforanyotherdirectorindirectspecial,incidentalorconsequentialdamagesarisingout

of or in relationto the use of this RDK,even if Renesasor its affiliateshave been advised of thepossibility of such

damages.

Precautions

This Renesas Demonstration Kit is only intended for use in a laboratory environment underambienttemperature and

humidity conditions. A safe separation distance should be used between this and any sensitive equipment. Its use

outside the laboratory, classroom, study area or similarsuch area invalidates conformity with the protection

requirements ofthe Electromagnetic Compatibility Directive and could lead to prosecution.

The product generates,uses, and can radiate radio frequencyenergy and may cause harmful interferenceto radio

communications. However, there is no guarantee that interference will not occur in a particular installation. If this

equipment causes harmful interference to radio or television reception, which can be determined by turning the

equipment off or on, you are encouraged to try to correct the interference by one or more of the following measures:

•Ensure attached cables do not lie across the equipment

•Reorient the receiving antenna

•Increasethe distance between the equipmentand the receiver

•Connect the equipment into an outlet ona circuitdifferent from that which the receiver is connected

•Power down the equipmentwhen not in use

•Consult the dealer or an experienced radio/TV technician for help NOTE: It is recommended that wherever

possible shielded interfacecables are used.

Theproductispotentiallysusceptibleto certainEMCphenomena.Tomitigate againstthemitis recommendedthatthe

following measures be undertaken:

•The user is advised that mobile phones should not be used within 10m of the product when in use.

•The useris advised to take ESD precautions when handling the equipment.

TheRenesasDemonstrationKitdoesnotrepresentanidealreferencedesignforanendproductanddoesnotfulfillthe

regulatory standards for an end product.

iii

Table of Contents

Chapter 1. Preface................................................................................................................ 1

Chapter 2. Purpose............................................................................................................... 2

Chapter 3. Power Supply ...................................................................................................... 5

3.1. Requirements................................................................................................................. 5

3.2. Power–Up Behavior ....................................................................................................... 5

Chapter 4. Board Layout....................................................................................................... 6

4.1. Component Layout......................................................................................................... 6

4.2. Board Dimensions.......................................................................................................... 7

Chapter 5. Block Diagram..................................................................................................... 8

Chapter 6. User Circuitry..................................................................................................... 10

6.1. Switches....................................................................................................................... 10

6.2. Debug LCD Module...................................................................................................... 10

6.3. LEDs ............................................................................................................................ 11

6.4. Serial EPROM.............................................................................................................. 11

6.5. MicroSD Memory Card Slot.......................................................................................... 11

6.6. Audio (Audio Out, Mic, Speaker, Volume Potentiometer)............................................. 12

6.7. Serial port..................................................................................................................... 12

6.8. 3-Axis Accelerometer................................................................................................... 12

6.9. Digital Temp Sensor..................................................................................................... 12

6.10. Potentiometer............................................................................................................. 13

6.11. Infrared Emitter & Detector......................................................................................... 13

6.12. TRIAC ........................................................................................................................ 13

6.13. FET ............................................................................................................................ 14

6.14. Oscillator Sources...................................................................................................... 14

6.15. Reset Circuit............................................................................................................... 15

6.16. Total Phase Beagle Debug Header............................................................................ 15

Chapter 7. Mode Switch...................................................................................................... 16

Chapter 8. Programming Methods...................................................................................... 17

Chapter 9. Headers............................................................................................................. 18

9.1. PMODTM Interfaces...................................................................................................... 18

9.2. Application Header (WIFI Module) ............................................................................... 18

9.3. Expansion Headers...................................................................................................... 19

Chapter 10. Code Development.......................................................................................... 21

10.1. Overview.................................................................................................................... 21

10.2. Memory Map .............................................................................................................. 22

Chapter 11. Component Placement.................................................................................... 23

Chapter 12. Additional Information...................................................................................... 24

12.1. Hardware Partner Information.................................................................................... 24

Renesas Contact Information.............................................................................................. 33

1.1....................................................................................................................................... 34

Chapter 1. Preface

Cautions

This document may be, wholly or partially, subject to change without notice.

Allrightsreserved.TheRDKdesign,documentation,anddemosoftwareareintendedtoimproveunderstandingand

time-to-market for RL78-based designs. Duplication of the design, documentation, and demonstration software is

encouraged.

Trademarks

All brandor product namesused in this manual are trademarks orregistered trademarksof their respective

companies or organizations.

Website: http://www.renesas.com/

Glossary

ADC Analog to Digital Converter

CPU Central Processing Unit

DAC Digitalto Analog Converter

EMC Electromagnetic compatibility

ESD Electrostatic Discharge

I/O Input / Output

LCD Liquid Crystal Display

LED Light Emitting Diode

MCU Microcontroller Unit

NC No Connection

PC Program Counter

PMOD Peripheral Module

RAM Random Access Memory

ROM Read-Only Memory

RDK Renesas Demonstration Kit

SDRAM Synchronous Dynamic Random Access

Memory

Chapter 2. Purpose

This RDK is an evaluation and demonstration tool for Renesas RL78 low-power microcontrollers. The goal is to provide

the user with a powerful debug and demonstration platform targeted at common applications. A set of human/machine

interfaces are tightlyintegrated withthe featuresof theRL78 and the software demonstration programs providing the

user with an accessible platform to rapidly evaluate and customize.

Target Applications and Features:

Audio

•Stereo audio driver connected to the PWM interface

•Amplified on-board speaker and external audio jack.

•On-board microphone to demonstrate sampling, FFT/FPU capabilities

•Volume Control Potentiometer

User Interface

•Graphical LCD

•User pushbutton switches and a reset switch.

•On-board LEDs

Communications

•RS-232 Interface

•I2C, SPIwith Debug through the Beagle connector from Total Phase

•Application Header to support severalexternal WiFi modules.

•PMOD connectionsto support a variety of generic PMOD devices (WiFi, Bluetooth, RF, and much more).

Memory Storage

•Micro SD card slot

•512KB Serial EEPROM

•512KB On-chip Flash Memory

Digital Sensors

•3 – Axis Accelerometer

•Temperature Sensor

•Ambient Light Sensor

Power Control

•FET Circuit for DC output

•TRIAC Circuit for AC output

User Code and Application Debugging

•On-board debugger for high-quality source code debugging (TK interface)

•User circuit breadboard area

Renesas Online

The Renesas RDK online experienceis complementedby the online Renesasecosystem.

•Renesas Interactive: www.RenesasInteractive.com

oFree Online Learning

•Renesas Rulz: www.RenesasRulz.com

oOnline community

oOnline user forums

ohttp://www.renesasrulz.com/community/demoboards/rdkrl78g13 - Online support site for this RDK

•University Program: www.RenesasUniversity.com

oSupport for Professors and Students

oSupport for University Kits (QSKs)

•Renesas Microcontroller Samples (America Customers)

oFree of charge

oRequest directly from www.America.Renesas.com/samples

Developand submit your sample programs to demonstrate these featuresto the online

community: www.RenesasRulz.com/community/renesas_products/rl78

Chapter 3.Power Supply

3.1. Requirements

This RDK getsits power from the debugger mini USB connection or optionally from a regulated 5V power supply. The

optionalpowerjackisacenterpositiveconnectorusinga2.1mmbarrel.Analternatepowerheaderislocatednexttothe

power jack (J5).

The RDK PCB can also be loaded with an optional 5.5V super cap (C73), part number EEC-S0HD334H.

Warning: The RDK is neither under nor over-voltage protected. Use a 5V REGULATED center positive supply.

3.2. Power–Up Behavior

When the RDK ispurchased it hasthe Theremin Demo pre-programmed into the Renesas microcontroller. The code

exercises the user LCD, Speaker andAccelerometer on the RDK. The LCDpowers up withX and Y axis lines on the

LCD. Switch 3 turns the speaker ON. The program takes samples from the accelerometer and changes the tone

frequency and volume of the speaker asthe board is tilted left, right, front, and back. The name of the factory demo

project is “RL78Theremin”.

Chapter 4. Board Layout

4.1. Component Layout

The following diagram shows the top layer component layout.

Figure 4-1: Board Layout

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