Nec QB-MINI2 User Manual

User’s Manual

QB-MINI2

On-Chip Debug Emulator with Programming Function

Target Devices V850 Microcontrollers 78K0R Microcontrollers 78K0 Microcontrollers 78K0S Microcontrollers

Document No. U18371EJ3V0UM00 (3rd edition) Date Published July 2008 NS

Printed in Japan

[MEMO]

User’s Manual U18371EJ3V0UM

MINICUBE is a registered trademark of NEC Electronics Corporation in Japan and Germany and Germany or a

trademark in the United States of America.

Windows is either a registered trademarks or a trademark of Microsoft Corporation in the United States

and/or other countries.

PC/AT is a trademark of International Business Machines Corporation.

C-SPY is registered trademark owned by IAR Systems AB.

•

The information in this document is current as of July, 2008. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC Electronics data sheets or data books, etc., for the most up-to-date specifications of NEC Electronics products. Not all products and/or types are available in every country. Please check with an NEC Electronics sales representative for availability and additional information.

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No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Electronics. NEC Electronics assumes no responsibility for any errors that may appear in this document.

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NEC Electronics does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of NEC Electronics products listed in this document or any other liability arising from the use of such products. No license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Electronics or others. Descriptions of circuits, software and other related information in this document are provided for illustrative

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purposes in semiconductor product operation and application examples. The incorporation of these circuits, software and information in the design of a customer's equipment shall be done under the full responsibility of the customer. NEC Electronics assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information.

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While NEC Electronics endeavors to enhance the quality, reliability and safety of NEC Electronics products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. To minimize risks of damage to property or injury (including death) to persons arising from defects in NEC Electronics products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features.

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NEC Electronics products are classified into the following three quality grades: "Standard", "Special" and "Specific". The "Specific" quality grade applies only to NEC Electronics products developed based on a customerdesignated "quality assurance program" for a specific application. The recommended applications of an NEC Electronics product depend on its quality grade, as indicated below. Customers must check the quality grade of each NEC Electronics product before using it in a particular application.

"Standard":

"Special":

"Specific":

Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots. Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support). Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc.

The quality grade of NEC Electronics products is "Standard" unless otherwise expressly specified in NEC Electronics data sheets or data books, etc. If customers wish to use NEC Electronics products in applications not intended by NEC Electronics, they must contact an NEC Electronics sales representative in advance to determine NEC Electronics' willingness to support a given application.

(Note) (1)

"NEC Electronics" as used in this statement means NEC Electronics Corporation and also includes its majority-owned subsidiaries.

(2)

"NEC Electronics products" means any product developed or manufactured by or for NEC Electronics (as defined above).

M8E 02. 11-1

User’s Manual U18371EJ3V0UM

General Precautions for Handling This Product

1. Circumstances not covered by product guarantee

• If the product was disassembled, altered, or repaired by the customer

• If it was dropped, broken, or given another strong shock

• Use at overvoltage, use outside guaranteed temperature range, storing outside guaranteed

temperature range

• If power was turned on while the USB cable or connection to the target system was in an

unsatisfactory state

• If the cable of the USB cable, the target cable, or the like was bent or pulled excessively

• If the product got wet

• If this product is connected to the target system when there is a potential difference between the

GND of this product and GND of the target system.

• If the connectors or cables are plugged/unplugged while this product is in the power-on state.

• If excessive load is applied to the connectors or sockets.

• If a metal part of the interface connector or another such part comes in contact with an electrostatic

charge

• If specifications other than those specified are used for the USB port

2. Safety precautions

• The product may become hot depending on the status of use. Be careful of low temperature burns

and other dangers due to the product becoming hot.

• Be careful of electrical shock. There is a danger of electrical shock if the product is used as

described above in 1 Circumstances not covered by product guarantee.

• Do not use a device that was used for on-chip debugging as the official product.

User’s Manual U18371EJ3V0UM

INTRODUCTION

Readers This manual is intended for users who wish to perform debugging using the QB-MINI2

(generic name: MINICUBE2).

The readers of this manual are assumed to be familiar with the device functions and

usage, and to have knowledge of debuggers and flash programming.

Purpose This manual is intended to give users an understanding of the basic specifications and

correct use of MINICUBE2.

Organization This manual is divided into the following sections.

• General

• Names and functions of hardware

• Self-testing

• Firmware update

How to Read This Manual It is assumed that the readers of this manual have general knowledge in the fields of

electrical engineering, logic circuits, and microcontrollers.

This manual describes the basic setup procedures.

To understand the basic specifications and usages of MINICUBE2 → Read this manual according to the CONTENTS. The mark <R> shows major

revised points. The revised points can be easily searched by copying an “<R>” in

the PDF file and specifying it in the “Find what:” field.

To know the manipulations, command functions, and other software-related settings

of MINICUBE2 → See the user’s manual of the debugger to be used.

Conventions Note: Footnote for item marked with Note in the text

Caution: Information requiring particular attention

Remark: Supplementary information

Numeric representation: Binary ... xxxx or xxxxB

Decimal ... xxxx

Hexadecimal ... xxxxH

Prefix indicating power of 2

(address space, memory

capacity): K (kilo): 2

M (mega): 2

= 1,024

User’s Manual U18371EJ3V0UM

Terminology The meanings of the terms used in this manual are described in the table below.

Term Meaning

MINICUBE2 Generic name of QB-MINI2

Target device This is the device to be emulated.

Target system This is the system to be debugged (user-created system).

It includes software and hardware created by the user.

OCD unit OCD is an abbreviation of On-Chip Debug

The OCD unit means the debug function block embedded in the target device.

Firmware Program embedded in the device for controlling MINICUBE2

QB-Programmer GUI software used to perform flash programming

Related Documents Please use the following documents in conjunction with this manual.

The related documents listed below may include preliminary versions. However,

preliminary versions are not marked as such.

Documents Related to Development Tools (User’s Manuals)

Document Name Document Number

QB-MINI2 On-Chip Debug Emulator with Programming Function This document

QB-MINI2 Setup Manual Partner Tool U19158E

ID850QB Ver. 3.20 Integrated Debugger Operation U17964E

ID78K0-QB Ver. 2.90 Integrated Debugger Operation U17437E

ID78K0S-QB Ver. 2.81 Integrated Debugger Operation U17287E

ID78K0R-QB Ver. 3.20 Integrated Debugger Operation U17839E

QB-Programmer Programming GUI Operation U18527E

MINICUBE2 Diagnostic Tool U18588E

MINICUBE OCD Checker U18591E

Caution The related documents listed above are subject to change without notice. Be sure to use the latest

version of each document for designing, etc.

Documents Related to Development Tools (Documents except User’s Manuals)

Document Name Document Number

QB-MINI2 Operating Precautions ZUD-CD-07-1212-E

Caution The related documents listed above are subject to change without notice. Be sure to use the latest

version of each document for designing, etc.

User’s Manual U18371EJ3V0UM

CONTENTS

CHAPTER 1 OVERVIEW......................................................................................................................... 10

1.1 Features ....................................................................................................................................... 10

1.2 Notes Before Using MINICUBE2 ................................................................................................ 11

1.3 Supported Devices...................................................................................................................... 11

1.4 Hardware Specifications ............................................................................................................ 12

CHAPTER 2 NAMES AND FUNCTIONS OF HARDWARE.................................................................... 13

2.1 Names of Supplied Hardware .................................................................................................... 13

2.2 Part Names and Functions of MINICUBE2 ............................................................................... 14

2.3 Part Names and Functions of 78K0-OCD Board ...................................................................... 16

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER ...................................... 17

3.1 Target System Design ................................................................................................................ 18

3.1.1 Pin assignment.................................................................................................................. 19

3.1.2 Circuit connection examples ........................................................................................... 20

3.1.3 Connection of reset pin.................................................................................................... 23

3.1.4 Mounting connector onto target system ........................................................................ 26

3.2 On-Chip Debugging .................................................................................................................... 27

3.2.1 Debug functions................................................................................................................ 27

3.2.2 System configuration ....................................................................................................... 28

3.2.3 System startup procedure ............................................................................................... 29

3.2.4 System shutdown procedure........................................................................................... 31

3.2.5 Securing of user resources and setting of security ID ................................................. 32

3.2.6 Cautions on debugging....................................................................................................38

3.3 Flash Programming..................................................................................................................... 41

3.3.1 Specifications of programming function........................................................................ 41

3.3.2 System configuration ....................................................................................................... 41

3.3.3 System startup procedure ............................................................................................... 42

3.3.4 Usage examples................................................................................................................ 44

3.3.5 System shutdown procedure........................................................................................... 50

3.3.6 Cautions on flash programming...................................................................................... 50

CHAPTER 4 HOW TO USE MINICUBE2 WITH 78K0 MICROCONTROLLER...................................... 51

4.1 Target System Design ................................................................................................................ 52

4.1.1 Pin assignment.................................................................................................................. 53

4.1.2 Circuit connection examples ........................................................................................... 55

4.1.3 Connection of reset pin.................................................................................................... 65

4.1.4 Cautions on target system design .................................................................................. 70

4.1.5 Mounting connector onto target system ........................................................................ 71

4.2 On-Chip Debugging .................................................................................................................... 72

4.2.1 Debug functions................................................................................................................ 72

4.2.2 System configuration ....................................................................................................... 73

4.2.3 System startup procedure ............................................................................................... 74

4.2.4 System shutdown procedure........................................................................................... 77

User’s Manual U18371EJ3V0UM

4.2.5 Clock setting...................................................................................................................... 78

4.2.6 Securing of user resources and setting of security ID ................................................. 81

4.2.7 Cautions on debugging ....................................................................................................87

4.3 Flash Programming..................................................................................................................... 92

4.3.1 Specifications of programming function........................................................................ 92

4.3.2 System configuration ....................................................................................................... 92

4.3.3 System startup procedure................................................................................................ 93

4.3.4 Usage examples ................................................................................................................ 95

4.3.5 System shutdown procedure......................................................................................... 101

4.3.6 Cautions on flash programming.................................................................................... 101

CHAPTER 5 HOW TO USE MINICUBE2 WITH 78K0S MICROCONTROLLER ................................. 102

5.1 Target System Design............................................................................................................... 103

5.1.1 Pin assignment................................................................................................................ 104

5.1.2 Circuit connection example ........................................................................................... 105

5.1.3 Connection of reset pin .................................................................................................. 106

5.1.4 Connection of INTP pin .................................................................................................. 109

5.1.5 Connection of X1 and X2 pins ....................................................................................... 111

5.1.6 Mounting connector onto target system ...................................................................... 112

5.2 On-Chip Debugging .................................................................................................................. 113

5.2.1 Debug functions.............................................................................................................. 113

5.2.2 System configuration ..................................................................................................... 114

5.2.3 System startup procedure.............................................................................................. 115

5.2.4 System shutdown procedure......................................................................................... 117

5.2.5 Securing of user resources............................................................................................ 118

5.2.6 Debugging of alternate-functions of X1 and X2 pins .................................................. 122

5.2.7 Cautions on debugging .................................................................................................. 123

5.3 Flash Programming................................................................................................................... 125

5.3.1 Specifications of programming function...................................................................... 125

5.3.2 System configuration ..................................................................................................... 125

5.3.3 System startup procedure.............................................................................................. 126

5.3.4 Usage examples .............................................................................................................. 128

5.3.5 System shutdown procedure......................................................................................... 134

5.3.6 Cautions on flash programming.................................................................................... 134

CHAPTER 6 HOW TO USE MINICUBE2 WITH 78K0R MICROCONTROLLER ................................. 135

6.1 Target System Design............................................................................................................... 136

6.1.1 Pin assignment................................................................................................................ 137

6.1.2 Circuit connection example ........................................................................................... 138

6.1.3 Connection of reset pin .................................................................................................. 139

6.1.4 Mounting connector onto target system ...................................................................... 142

6.2 On-Chip Debugging .................................................................................................................. 143

6.2.1 Debug functions.............................................................................................................. 143

6.2.2 System configuration ..................................................................................................... 144

6.2.3 System startup procedure.............................................................................................. 145

6.2.4 System shutdown procedure......................................................................................... 147

6.2.5 Securing of user resources and setting of security ID and on-chip debug option byte

......................................................................................................................................... 148

User’s Manual U18371EJ3V0UM

6.2.6 Cautions on debugging.................................................................................................. 154

6.3 Flash Programming................................................................................................................... 156

6.3.1 Specifications of programming function...................................................................... 156

6.3.2 System configuration ..................................................................................................... 156

6.3.3 System startup procedure ............................................................................................. 157

6.3.4 Usage examples.............................................................................................................. 159

6.3.5 System shutdown procedure......................................................................................... 165

6.3.6 Cautions on flash programming.................................................................................... 165

CHAPTER 7 SELF-TESTING ................................................................................................................ 166

7.1 System Configuration............................................................................................................... 166

7.2 Self-Testing Procedure............................................................................................................. 167

CHAPTER 8 FIRMWARE UPDATE ...................................................................................................... 168

8.1 System Configuration............................................................................................................... 168

8.2 Firmware Update Procedure .................................................................................................... 169

APPENDIX A EQUIVALENT CIRCUIT ................................................................................................. 170

APPENDIX B REVISION HISTORY ..................................................................................................... 171

User’s Manual U18371EJ3V0UM

CHAPTER 1 OVERVIEW

MINICUBE2 is an on-chip debug emulator with flash programming function, which is used for debugging and

programming a program to be embedded in on-chip flash memory microcontrollers.

1.1 Features

• On-chip debugging

Can debug with the target microcontroller connected to the target system.

• Flash memory programming

Can write programs to the on-chip flash memory of microcontrollers.

• USB connection

Can be connected to the host machine via USB interface 2.0 or 1.1.

Since MINICUBE2 operates on power supplied via USB, an external power supply is unnecessary.

• Variety of supported devices and expandability

MINICUBE2 supports a wide variety of NEC Electronics 8- to 32-bit on-chip flash memory

microcontrollers. More devices can be supported by upgrading firmware embedded in MINICUBE2.

• Self-testing function

MINICUBE2 has a self-testing function, which is used to detect faults in MINICUBE2 and perform

maintenance.

User’s Manual U18371EJ3V0UM

CHAPTER 1 OVERVIEW

1.2 Notes Before Using MINICUBE2

Chapters 1 and 2 present an overview and the basic specifications of MINICUBE2, and the following chapters

provide separate descriptions for the target devices and the purpose of use. To utilize this manual effectively,

refer to the following table and see the relevant chapter for your target device and purpose of use.

Table 1-1. Chapters Corresponding to Usage

Target Device Purpose of Use Relevant Chapter

V850

78K0

78K0S

78K0R

Target system design 3.1 Target System Design

On-chip debugging 3.2 On-Chip Debugging

Flash memory programming 3.3 Flash Programming

CHAPTER 4 HOW TO USE MINICUBE2 WITH

Target system design 4.1 Target System Design

On-chip debugging 4.2 On-Chip Debugging

Flash memory programming 4.3 Flash Programming

CHAPTER 5 HOW TO USE MINICUBE2 WITH

Target system design 5.1 Target System Design

On-chip debugging 5.2 On-Chip Debugging

Flash memory programming 5.3 Flash Programming

CHAPTER 6 HOW TO USE MINICUBE2 WITH

Target system design 6.1 Target System Design

On-chip debugging 6.2 On-Chip Debugging

Flash memory programming 6.3 Flash Programming

- MINICUBE2 self-testing CHAPTER 7 SELF-TESTING

- Expansion of supported devices CHAPTER 8 FIRMWARE UPDATE

CHAPTER 3 HOW TO USE MINICUBE2 WITH

V850 MICROCONTROLLER

78K0 MICROCONTROLLER

78K0S MICROCONTROLLER

78K0R MICROCONTROLLER

1.3 Supported Devices

Access the following MINICUBE2 information site or refer to the document for details on the devices that

support debugging and flash programming with MINICUBE2. The document describes the development tools

that are required as the support conditions, serial interface and operating precautions, so be sure to read the

document, in addition to this manual.

• MINICUBE2 information site

URL: http://www.necel.com/micro/english/product/sc/allflash/minicube2.html

• Document

Document name: QB-MINI2 Operating Precautions

Remark The above-mentioned document is posted on the MINICUBE2 information Web site.

User’s Manual U18371EJ3V0UM

CHAPTER 1 OVERVIEW

1.4 Hardware Specifications

This section describes the MINICUBE2 hardware specifications.

The specifications related to the on-chip debug and flash memory programming functions are described in the

following chapters.

Table 1-2. Hardware Specifications

Classification Item Specifications

MINICUBE2

Host machine interface

Target interface

Operating power supply Supplied via USB interface (5 V)

Operating environment

conditions

Storage environment

conditions

External dimensions 48 × 48 × 13.9 mm

Weight Approximately 40 g

Target host machine PC98-NX Series, IBM PC/ATTM compatibles

Target OS WindowsTM 98, Windows Me, Windows 2000, Windows XP

USB 2.0 (1.1 compatible)

USB cable 2 m

Current consumption 500 mA max.

Target cable length 16-pin cable: 10 cm

Supported connector 2.54 mm pitch general-purpose connector

Supply voltage 3.1 V (typ.) or 5.0 V (typ.)

Supply current 100 mA max.

Current consumption 8 mA (typ.)

Voltage range 1.65 to 5.5 V

Temperature: ±0 to +40°C

Humidity: 10 to 80% RH (no condensation)

Temperature: -15 to +60°C

Humidity: 10 to 80% RH (no condensation)

10-pin cable: 10 cm

User’s Manual U18371EJ3V0UM

CHAPTER 2 NAMES AND FUNCTIONS OF HARDWARE

This chapter describes the part names and functions of MINICUBE2 and its accessories.

The part names described in this chapter are used throughout this document. This chapter provides an

overview of the various functions. Reading it through, the reader will gain a basic grasp of MINICUBE2 and the

self-check board that will facilitate reading of subsequent chapters. While reading this chapter, also check if the

hardware has a defect.

2.1 Names of Supplied Hardware

Figure 2-1 shows the names of hardware supplied with MINICUBE2.

Figure 2-1. Names of Supplied Hardware

MINICUBE2

16-pin target cable

USB cable

10-pin target cable

78K0-OCD board

(A 20 MHz oscillator mounted)

User’s Manual U18371EJ3V0UM

CHAPTER 2 NAMES AND FUNCTIONS OF HARDWARE

2.2 Part Names and Functions of MINICUBE2

Figure 2-2 shows the part names of the MINICUBE2 main unit. For their functions, refer to (1) to (5) below.

Figure 2-2. Part Names of MINICUBE2

USB interface

Target interface

Target interface connector

connector

Mode LED

Mode select switch Power select switch

USB interface connector

connector

(1) Mode select switch

This switch is used to select the target device. Table 2-1 describes the setting details. This switch is set to ″M2″ at shipment.

Table 2-1. Description of Mode Select Switch

Setting Description

M1 Sets 78K0S or 78K0R microcontroller as target device

M2 Sets V850 or 78K0 microcontroller as target device (factory setting)

(2) Power select switch

This switch is used to set the power supplied to the target system. Table 2-2 describes the setting details. This switch is set to ″3″ at shipment.

Caution Do not change the switch setting while the USB cable is connected.

Table 2-2. Setting of Power Select Switch

Setting Description

Note

3 V is supplied from MINICUBE2 to the target system

The supplied power is fed back to MINICUBE2 and used only for power detection.

5 V is supplied from MINICUBE2 to the target system

The supplied power is fed back to MINICUBE2 and used only for power detection.

Power supply of the target system is used.

MINICUBE2 only detects the power for the target system.

. (Factory setting)

Note

Note The maximum rating of the current is 100mA, so do not use MINICUBE2 with the target system with

the higher current rating. The power is always supplied after MINICUBE2 is connected to the host

machine.

User’s Manual U18371EJ3V0UM

CHAPTER 2 NAMES AND FUNCTIONS OF HARDWARE

(3) USB interface connector

This is a connector used to connect MINICUBE2 with the host machine, via a USB cable.

A USB 2.0 compliant mini-B connector (UX60A-MB-5ST: Made by Hirose Electric Co., Ltd.) is employed.

(4) Target interface connector

This is a connector used to connect MINICUBE2 with the target system, via a 16-pin target cable. Connect

the 78K0-OCD board for debugging a 78K0 microcontroller. To prevent the 78K0-OCD board from being

inserted by mistake, pin 11 is removed at shipment.

Since this connector is compatible with 16-core 2.54 mm pitch general-purpose connectors (female), a

commercially available cable can be substituted.

(5) Mode LED

The appearance of the mode LED changes according to the status of hardware and software, as shown in

Table 2-3.

Table 2-3. Mode LED Status

Appearance

Color

- Extinguished Not

White

Blue

Orange

Green

Yellow

Red Glowing

Illumination The illumination mode is entered when MINICUBE2 is connected to a USB interface and 15

Flashing

Glowing Not yet started

Glowing

Flashing

Glowing

Flashing

Glowing

Flashing

Glowing

Flashing

USB

Connection

connected

Connected

seconds or longer have elapsed. This mode is also entered when the debugger is terminated normally.

Target VDD

Detection

Not detected

Detected

Description Mode LED

Software Operation Status

Not yet started

A debugger for V850 microcontrollers has been started and CPU is in the break mode.

A debugger for V850 microcontrollers has been started and the CPU is running, or a program is being downloaded.

A debugger for 78K0 microcontrollers has been started and the CPU is in the break mode.

A debugger for 78K0 microcontrollers has been started and the CPU is running, or a program is being downloaded.

A debugger for 78K0S microcontrollers has been started and the CPU is in the break mode. The QB-Programmer has been started and is waiting for execution processing. Alternatively, execution processing has been completed.

A debugger for 78K0S microcontrollers has been started and the CPU is running, or a program is being downloaded.

A debugger for 78K0R microcontrollers has been started and the CPU is in the break mode.

A debugger for 78K0R microcontrollers has been started and the CPU is running, or a program is being downloaded. A command from the QB-Programmer is being executed for the flash memory.

A command from the QB-Programmer is ended abnormally (results in error)

User’s Manual U18371EJ3V0UM

CHAPTER 2 NAMES AND FUNCTIONS OF HARDWARE

2.3 Part Names and Functions of 78K0-OCD Board

The 78K0-OCD board is used for debugging a 78K0 microcontroller (not used for flash programming). Figure

2-3 illustrates the external view of the 78K0-OCD board. The name of each part is printed on the 78K0-OCD

board. For each function, refer to (1) to (4), below.

Figure 2-3. Part Names of 78K0-OCD Board

(1) CLK1

For clock supply to the target device, a 14-pin DIP socket is implemented as CLK1. A 14-pin type oscillator (5

V) or a parts board that can configure an oscillation circuit can be mounted on the 14-pin DIP socket. A parts

board such as the 160-90-314 (manufactured by PRECI-DIP) can be used with this socket to configure

oscillation circuit.

(2) CN1

This is a connector used to connect MINICUBE2 with the target interface connector of MINICUBE2. To

prevent the 78K0-OCD board from being inserted by mistake, a dummy pin is mounted in the place of pin 11 in

CN1.

(3) CN2

This is a connector used to connect MINICUBE2 with the target system, via a 10-pin target cable.

A 10-core 2.54 mm pitch general-purpose connector (TSM-105-01-L-DV) is employed.

(4) CN3

This is a connector used to connect MINICUBE2 with the target system, via a 16-pin target cable.

A 16-core 2.54 mm pitch general-purpose connector (TSM-108-01-L-DV) is employed.

User’s Manual U18371EJ3V0UM

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

This chapter describes how to use MINICUBE2 when performing on-chip debugging and flash programming for

a V850 microcontroller.

On-chip debugging is a method to debug a microcontroller mounted on the target system, using a debug

function implemented in the device. Since debugging is performed with the target device operating on the board,

this method is suitable for field debugging.

Flash programming is a method to write a program to the flash memory embedded in a device. Erasing, writing

and verifying the program can be performed on-board with the device.

Read the following chapters if you are using MINICUBE2 for the first time with a V850 microcontroller as the

target device.

• 3.1 Target System Design

For communication between MINICUBE2 and the target system, communication circuits must be mounted on

the target system. This section describes the circuit design and mounting of connectors.

• 3.2 On-Chip Debugging

This section describes the system configuration and startup method to perform on-chip debugging with

MINICUBE2.

• 3.3 Flash Programming

This section describes the system configuration and startup method to perform flash programming with

MINICUBE2.

User’s Manual U18371EJ3V0UM

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

3.1 Target System Design

This section describes the target system circuit design required for on-chip debugging and flash programming.

Figure 3-1 presents an overview of the MINICUBE2 communication interface. As shown on the left side of

the figure, MINICUBE2 performs serial communication with the target device on the target system. For this

communication, communication circuits must be mounted on the target system. Refer to this section to design

circuits appropriately.

UART and CSI-H/S are supported as communication modes. Note that CSI-H/S is not available if there is no

H/S pin connection. The H/S pin is the name of the pin for the programmer and this pin might not be described as an alternate-function pin in the user's manual of the device. In such a case, connect the relevant port that is

assigned to the H/S pin. (In the V850ES/JJ, for example, the PCM0 pin is assigned to the H/S pin.)

The pins used for serial communication are basically the same as those of the flash memory programmer

(such as PG-FP4), but some devices do not support some of them. Refer to the document ″QB-MINI2 Operating Precautions″ and check the supported pins.

Figure 3-1. Outline of Communication Interface

Communication circuits

Communication circuits must be mounted on

must be mounted on the target system.

the target system.

Target device

Target system

Serial communication

(UART, CSI-H/S)

MINICUBE2

USB

USB communication

communication

Host machine

User’s Manual U18371EJ3V0UM

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

3.1.1 Pin assignment

This section describes the interface signals used between MINICUBE2 and the target system. Table 3-1 lists

the pin assignment. Table 3-2 describes the functions of each pin. The pin assignment varies depending on

whether CSI-H/S or UART is used, so design the circuit appropriately according to the circuit connection examples

described on the following sections.

Table 3-1. Pin Assignment

TOP VIEW

Target system

9107856341

Pin 1

Pin Name

CSI-H/S Used UART Used

GND

RESET_OUT

VDD

R.F.U.

SCK R.F.U.

H/S R.F.U.

CLK

R.F.U.

FLMD1

R.F.U.

FLMD0

RESET_IN

R.F.U.

Note

RXD

TXD

Pin No.

131411

Pin assignment of target connector

Pin assignment of target connector to be mounted on target system

to be mounted on target system

Note Signal names in MINICUBE2

Table 3-2. Pin Functions

Pin Name IN/OUT

Note

Description

RESET_IN IN Pin used to input reset signal from the target system

RESET_OUT OUT Pin used to output reset signal to the target device

CLK OUT Pin used to output clock signal to the target device

FLMD0 OUT Pin used to set the target device to debug mode or

programming mode

FLMD1 OUT Pin used to set programming mode

RxD/SI IN Pin used to receive command/data from the target device

TxD/SO OUT Pin used to transmit command/data to the target device

SCK OUT Pin used to output clock signal for 3-wire serial communication

H/S IN Pin used to input handshake signal from the target device

R.F.U.

This pin is not used, so leave it open.

Note As seen from MINICUBE2

User’s Manual U18371EJ3V0UM

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

3.1.2 Circuit connection examples

The circuit design on the target system varies depending on the communication interface mode. Refer to the

following table and see the relevant circuit connection example.

Caution The constants described in the circuit connection example are reference values. If you perform

flash programming aiming at mass production, thoroughly evaluate whether the specifications of

the target device are satisfied.

Table 3-3. Corresponding Circuit Connection Diagrams

Communication Interface Mode Refer to:

UART

CSI-H/S

Figure 3-2

Figure 3-3

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CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

<R>

Figure 3-2. Recommended Circuit Connection When UART Is Used for Communication Interface

RESET_OUT

RXD

TxD

CLK

FLMD1

RESET_IN

GND

ote

R.F.U.

ote

R.F.U.

ote

R.F.U.

FLMD0

ote

R.F.U.

VDD

3k to 10kΩ

1k to 10kΩ

Note 7

Note 5

1k to

10kΩ

Note 7

1kΩ10kΩ

Note 7

10kΩ

Target deviceTarget connector

GND

RESET

TxD

RxD

FLMD1

FLMD0

100Ω

Note 6

PortX

Reset connecto

Clock circuit

RESET signal

Notes 1. Connect TxD (transmit side) of the target device to RxD (receive side) of the target connector, and TxD

(transmit side) of the target connector to RxD (receive side) of the target device. Read the serial interface

pin names on the target device side as those for flash programming supported by the target device.

2. This pin may be used to supply an external clock during flash programming (4, 8 or 16 MHz). For the connection, refer to the user's manual for the target device.

3. The alternate function of this pin can be used because this pin changes to input (unused) when debugging. In MINICUBE2, it is pulled down at 100 kΩ.

4. This connection is designed assuming that the RESET signal is output from the N-ch open-drain buffer (output resistance: 100Ω or less). For details, refer to 3.1.3 Connection of reset pin.

5. The circuit enclosed by a dashed line is not required when only flash programming is performed.

6. The circuit enclosed by a dashed line is designed for flash self programming, which controls the FLMD0

pin via ports. Use the port for inputting or outputting the high level. When flash self programming is not performed, a pull-down resistance for the FLMD0 pin can be within 1 to 10 kΩ.

7. This is for pin processing when not used as a device.

To change this value to another resistance value, see APPENDIX A EQUIVALENT CIRCUIT.

User’s Manual U18371EJ3V0UM

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

<R>

Figure 3-3. Recommended Circuit Connection When CSI-H/S Is Used for Communication Interface

Target connecto

RESET_OUT

CLK

FLMD1

RESET_IN

GND

ote

R.F.U.

SCK

H/S

ote

R.F.U.

Note 3

R.F.U.

FLMD0

ote

R.F.U.

VDD V

1k to 10kΩ

Note 5

Note 7

1k to 10kΩ

DDVDD

Note 7

3k to 10kΩ

Note 7

1k to 10kΩ

10kΩ

Target device

GND

RESET

SCK

H/S

Note 7

FLMD1

FLMD0

100Ω

Note 6

PortX

Clock circuit

10kΩ 1kΩ

Reset connecto

RESET signal

Notes 1. Connect SO (transmit side) of the target device to SI (receive side) of the target connector, and SO

(transmit side) of the target connector to SI (receive side) of the target device. Read the serial interface

pin names on the target device side as those for flash programming supported by the target device.

2. This pin may be used to supply an external clock during flash programming (4, 8 or 16 MHz). For the connection, refer to the user's manual for the target device.

3. The alternate function of this pin can be used because this pin changes to input (unused) when debugging. In MINICUBE2, it is pulled down at 100 kΩ.

4. This connection is designed assuming that the RESET signal is output from the N-ch open-drain buffer (output resistance: 100Ω or less). For details, refer to 3.1.3 Connection of reset pin.

5. The circuit enclosed by a dashed line is not required when only flash programming is performed.

6. The circuit enclosed by a dashed line is designed for flash self programming, which controls the FLMD0

pin via ports. Use the port for inputting or outputting the high level. When flash self programming is not performed, a pull-down resistance for the FLMD0 pin can be within 1 to 10 kΩ.

7. This is for pin processing when not used as a device.

To change this value to another resistance value, see APPENDIX A EQUIVALENT CIRCUIT.

User’s Manual U18371EJ3V0UM

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

3.1.3 Connection of reset pin

This section describes the connection of the reset pin, for which special attention must be paid, in circuit

connection examples shown in the previous section.

During on-chip debugging, a reset signal from the target system is input to MINICUBE2, masked, and then

output to the target device. Therefore, the reset signal connection varies depending on whether MINICUBE2 is

connected.

For flash programming, the circuit must be designed so that the reset signals of the target system and

MINICUBE2 do not conflict.

Select one of the following methods and connect the reset signal in the circuit. The details of each method

are described on the following pages.

(1) Automatically switching the reset signal via series resistor (recommended; described in recommended

circuit connection in the previous section)

(2) Manually switching the reset signal with jumper

(3) Resetting the target device by power-on clear (POC) only

User’s Manual U18371EJ3V0UM

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

(1) Automatically switching the reset signal via series resistor

Figure 3-4 illustrates the reset pin connection described in 3.1.2 Circuit connection examples.

This connection is designed assuming that the reset circuit on the target system contains an N-ch

open-drain buffer (output resistance: 100Ω or less). The VDD or GND level may be unstable when the logic

of RESET_IN/OUT of MINICUBE2 is inverted, so observe the conditions described below in Remark.

Figure 3-4. Circuit Connection with Reset Circuit That Contains Buffer

MINICUBE2

RESET_OUT

RESET_IN

Target device

_RESET

Reset connector

Buffer

Remark Make the resistance of at least R1 ten times that of R2, R1 being 10 kΩ or more.

Pull-up resistor R2 is not required if the buffer of the reset circuit consists of CMOS output.

The circuit enclosed by a dashed line is not required when only flash programming is performed.

Figure 3-5 illustrates the circuit connection for the case where the reset circuit on the target system contains

no buffers and the reset signal is only generated via resistors or capacitors. Design the circuit, observing

the conditions described below in Remark.

Figure 3-5. Circuit Connection with Reset Circuit That Contains No Buffers

MINICUBE2

RESET_OUT

_RESET

Reset connectorTarget device

RESET_IN

Remark Make the resistance of at least R1 ten times that of R2, R1 being 10 kΩ or more.

The circuit enclosed by a dashed line is not required when only flash programming is performed.

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CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

(2) Manually switching the reset signal with jumper

Figure 3-6 illustrates the circuit connection for the case where the reset signal is switched using the jumper,

with or without MINICUBE2 connected. This connection is simple, but the jumper must be set manually.

Figure 3-6. Circuit Connection for Switching Reset Signal with Jumper

Target connector

RESET_OUT

RESET_IN

Jumper

2 3

Target device

_RESET

Reset connector

RESET signal

* Jumper setting

When MINICUBE2 is connected: 1-2 shorted

When MINICUBE2 is not connected: 2-3 shorted

(3) Resetting the target device by power-on clear (POC) only

Figure 3-7 illustrates the circuit connection for the case where the target device is only reset via POC

without using the reset pin. RESET_OUT is valid only when the debugger is running or during flash

programming.

The operation is not guaranteed if the power to the target system is shut down during debugging. Note that

the POC function cannot be emulated.

Figure 3-7. Circuit Connection for the Case Where Target Device Is Only Reset via POC

Target connector

RESET_OUT

RESET_IN

1 to 10 kΩ

Target device

_RESET

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CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

3.1.4 Mounting connector onto target system

The connector must be mounted on the target system for connecting MINICUBE2 with the target system. A

2.54 mm pitch 16-pin general-purpose connector can be used. The following products are recommended.

• HIF3FC-16PA-2.54DS (right-angle type, made by Hirose Electric Co., Ltd.)

• HIF3FC-16PA-2.54DSA (straight type, made by Hirose Electric Co., Ltd.)

• 7616-5002PL (right-angle type, made by Sumitomo 3M, Ltd.)

• 7616-6002PL (straight type, made by Sumitomo 3M, Ltd.)

Compact connectors and loose-wire cables are also available as options. For more information on these

products, access the MINICUBE2 information site.

URL: http://www.necel.com/micro/english/product/sc/allflash/minicube2.html

Figure 3-8. 2.54 mm Pitch 16-Pin General-Purpose Connector Pin Layout

TOP VIEW

Pin 1

Target system

131411

Pin assignment of target connector

Pin assignment of target connector to be mounted on target system

to be mounted on target system

9107856341

Pin assignment when MINICUBE2

Pin assignment when MINICUBE2 is connected in this direction

is connected in this direction

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CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

3.2 On-Chip Debugging

This section describes the system configuration, startup/shutdown procedure and cautions for debugging when

on-chip debugging is performed with MINICUBE2.

3.2.1 Debug functions

Table 3-4 lists the debug functions when a V850 microcontroller is the target device and the ID850QB is used.

If a debugger other than the ID850QB (made by partner manufacturer) is used, the available functions may differ,

so check the specifications of the debugger used.

Table 3-4. Debug Functions

Functions Specifications

Security

Download

Execution

Hardware break

Software break

Forced break

RAM monitoring

DMM (writing to memory during RUN)

Pin masking

Time measurement

(from execution start to break)

User spaces used for debugging

Function pins used for debugging

ROM area

RAM area

Notes 1. The following devices are not yet supported.

V850ES/KE2, V850ES/KF2, V850ES/KG2,

2. Available with restrictions. For details, refer to 3.2.6 Cautions on debugging.

10-byte ID code authentication

Available

Go & Go, Start from Here, Come Here, Restart, step execution

Note 1

2 points

4 points

2,000 points

Available

Available (reset pin only)

Measurement resolution: 100

Max. measurement time: Approximately 100 hours

Internal ROM: 2 K bytes+12 bytes

Internal RAM: 16 bytes max.

UART selected: RXD, TXD

CSI-H/S selected: SI, SO, SCK, H/S

(commonly used by execution and access)

Note 2

PD70F3733, V850ES/IE2

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CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

3.2.2 System configuration

Figure 3-9 illustrates the system configuration for on-chip debugging.

Figure 3-9. System Configuration for On-Chip Debugging

<5>

<6>

Target system

<1> Host machine

Products with USB ports

<2> Software

Includes the debugger, USB driver, device files, and so on.

Download these NEC Electronics software from the following website (ODS).

URL: http://www.necel.com/micro/ods/eng/

<3> USB cable (accessory)

<4> MINICUBE2 (this product)

<5> 16-pin target cable (accessory)

<6> Target connector (sold separately)

<4>

<3>

<1>

<2>

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CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

3.2.3 System startup procedure

This section describes the system startup procedure. Observe the following order.

(1) Preparation and installation of software

The following software is required to perform on-chip debugging. For details on preparation and installation of

software, refer to the setup manual supplied with MINICUBE2.

• Debugger

• USB driver

• Device file (may be unnecessary when using a partner manufacture’s debugger)

(2) Switch setting

Set the mode select switch to ″M2″. Set the power select switch by referring to Table 3-5.

Caution Do not change the switch setting while the USB cable is connected.

Table 3-5. Setting of Power Select Switch

Setting Description

3 3 V is supplied from MINICUBE2 to the target system

5 5 V is supplied from MINICUBE2 to the target system

T Power supply of the target system is used.

MINICUBE2 detects the power for the target system.

The detected power is also used as the power supply for the communication interface.

Note The maximum rating of the current is 100 mA, so do not use MINICUBE2 with the target system with

the higher current rating. The power is always supplied after MINICUBE2 is connected to the host

machine.

(3) Connecting the target system

Connect MINICUBE2 to the target system as shown in Figure 3-10, before the power to the target system is

turned on.

Figure 3-10. Connecting MINICUBE2 to Target System

Note

Target system

16-pin target cable

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MINICUBE2

CHAPTER 3 HOW TO USE MINICUBE2 WITH V850 MICROCONTROLLER

(4) Connecting the USB cable

Connect MINICUBE2 to the host machine as shown in Figure 3-11, before the power to the target system is

turned on.

When the power select switch is set to ″T″, the mode LED flashes white after connection. When the power select switch is set to ″3″ or ″5″, the mode LED glows white after connection.

Figure 3-11. Connecting MINICUBE2 to Host Machine

MINICUBE2 USB cable Host machineMINICUBE2 USB cable Host machine

(5) Applying power to target system

Turn on power to the target system. This step is not necessary if the power select switch is set to ″3″ or ″5″.

The mode LED glows white after power application.

(6) Debugger startup

Start the debugger. The mode LED glows blue after debugger startup.

For the operation after this step, refer to the user's manual for the debugger.

If the debugger does not start normally or the operation is unstable, the possible causes may be the following.

• Communication error between MINICUBE2 and target system

Whether communication is performed normally can be checked using the OCD Checker. For details, refer

to the user's manual for the OCD Checker.

• The user resource has not been secured or the security ID has not been set

To perform debugging with MINICUBE2, the debug monitor area and communication serial interface for

communication must be secured and the security ID must be set. For details, refer to 3.2.5 Securing of

user resources and setting of security ID.

• Unsupported software (debugger, device file, or firmware) is used The software used may not support debugging of the target device. Refer to the document ″QB-MINI2

Operating Precautions″ and check the supported version. When using software provided by an NEC

Electronics partner, refer to the documents prepared by the partner company.

• Defect of MINICUBE2

MINICUBE2 may have a defect. Refer to CHAPTER 7 SELF-TESTING.

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