Manuale d’uso / di manutenzione del prodotto EZ-KIT Lite ADSP-21364 del fabbricante Analog Devices
Vai alla pagina of 77
ADSP-21364 EZ-KIT Lite ® Evaluation System Manual Revision 3. 2 , July 200 7 Part Number 82-000840-01 Analog Devices, Inc. One T echnology W ay N orwood, Mass.
Copyright Information ©200 7 Analog Devices, Inc., ALL RIGH TS RESERVED. This document may not be reproduced in any form wi thout prior, express written consent from Analog Devices, Inc.
Regulatory Compliance The ADSP-21364 EZ-KIT Lite evaluation system has been certified to comply with the essential requiremen ts of the European EMC directive 89/336/EEC (inclusive 93/68/EEC) and, therefore, carries the “ CE ” mark.
.
ADSP-21364 EZ-KIT Lite Eval uation System Manual v CONTENTS PR E F A C E P urpose of This Manual ................................................................. xii Intended A udience .................................................................
CONTENTS vi ADSP-21364 EZ-KIT Lite Ev aluation System Manual Data Sheets .......................................................................... xx N otation Conventions .................................................................... xx U SING ADSP-21364 EZ-KIT LITE P ackage Contents .
ADSP-21364 EZ-KIT Lite Eval uation System Manual vii CONTENTS SPI D isable S witch (SW8) ..................................................... 2-11 P ush Button Enable S witch (SW9) ......................................... 2-11 Boot M ode and Clock Ratio Select S witch (SW10) .
CONTENTS viii ADSP-21364 EZ-KIT Lite Ev aluation System Manual ADSP-21364 EZ-KIT LITE BILL O F M ATERIALS ADSP-21364 EZ-KIT LITE SCHEMATIC T itle P age ..................................................................................... B-1 ADSP-21364 P rocessor .
ADSP-21364 EZ-KIT Lite Evalua tion System Manual ix PREFACE Thank you for purchasing the ADSP-21364 EZ-KIT Lite ® , Analog Devices, Inc. evaluati on system for SHARC ® processors.
x ADSP-21364 EZ-KIT Lite Ev aluation System Manual Access to the ADSP-21364 processor from a personal computer (PC) is achieved through a USB port or an optional JTAG e mulator. The USB interface gives unrestricted access to the ADSP-21364 processor and the evaluation board peripherals.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual xi Preface • Analog audio interface D AD1835A codec D 4x2 RCA phono jack for 4 channels of stereo output D 2x1 RCA phono jack for 1 channel of stereo.
Purpose of This Manual xii ADSP-21364 EZ-KIT Lite Ev aluation System Manual information, see “External Memory” on page 1-7 and “Boot Mode and Clock Ratio Select Switch (SW10)” on page 2-12 . The board also has 512 KB of SRAM, which can be used at runtime.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual xiii Preface (such as the ADSP-2136x SHARC Process or Programming Reference and ADSP-2136x SHARC Processor Hardware Reference ) that describe your tar- get architecture.
What’s New in This Manual xiv ADSP-21364 EZ-KIT Lite Ev aluation System Manual What’s New in This Manual This edition of the ADSP-21364 EZ-KIT Lite Ev aluation System Manual documents ADSP-21364 EZ-KIT Lite co mpliance with the RoHS and WEEE directives.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual xv Preface Supported Processors The ADSP-21364 EZ-KIT Lite evaluation system supports the Analog Devices ADSP-21364 SHARC processors. Product Information You can obtain product information from the Analog Devices Web site, from the product CD-ROM, or from the printed publications (manuals).
Product Information xvi ADSP-21364 EZ-KIT Lite Ev aluation System Manual Processor Product Information For information on embedded processors and DSPs, visit our Web site at http://www.analog.com/proce ssors , which provides access to technical publications, data sheets, application notes, product overviews, and prod- uct announcements.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual xvii Preface L If you plan to use the EZ-KIT Lite board in conjunction with a JTAG emulator, also refer to the docume ntation that accompanies the emulator. All documentation is avai lable online. Mo st docume ntation is av ailable in printed form.
Product Information xviii ADSP-21364 EZ-KIT Lite Ev aluation System Manual Each documentation file type is described as follows. If documentation is not installed on your system as part of the software installation, you can add it from the VisualDSP++ CD at any time by run- ning the Tools installati on.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual xix Preface Help system files ( .chm ) are located in the Help folder, and .pdf files are located in the Docs folder of your Visual DSP++ installation CD-ROM. The Docs folder also contains the Dinkum Abridged C++ library and the FlexLM network license manager software documentation.
Notation Conventions xx ADSP-21364 EZ-KIT Lite Ev aluation System Manual Hardware Tools Manuals To purchase EZ-KIT Lite and In-Cir cuit Emulator (ICE) manuals, call 1-603-883-2430 . The manuals may be ordered by title or by product number located on the back cover of each manual.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual xxi Preface Example Descr iption Close command ( Fil e menu) T itles in r eferen ce section s indicate the location of an item within the VisualDSP++ environment ’ s menu system (for example, the Close command appears on the Fil e me nu).
Notation Conventions xxii ADSP-21364 EZ-KIT Lite Ev aluation System Manual.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 1-1 1 USING ADSP-21364 EZ-KIT LITE This chapter provides specific informati on to assist you with development of programs for the ADSP-21364 EZ -KIT Lite evalua tion system. The information appears in the following sections.
Package Contents 1-2 ADSP-21364 EZ-KIT Lite Ev aluation System Manual • “Example Programs” on page 1-12 Provides information about exa mple programs included in the ADSP-21364 EZ-KIT Lite evaluation system. • “Background Telemetry Channel” on page 1-12 Highlights the advantages of the background telemetry channel feature of VisualDSP++.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 1-3 Using ADSP-21364 EZ-KIT Lite • USB 2.0 cable • Registration card (please fill out and return) If any item is missing, contact the vendor where you purchased your EZ-KIT Lite or contact Analog Devices, Inc.
Default Configuration 1-4 ADSP-21364 EZ-KIT Lite Ev aluation System Manual 3. Plug the provided power supply into J7 on the EZ-KIT Lite board. Visually verify that the green power LED ( LED10 ) is on. Also verify that the red reset LED ( LED9 ) goes on for a mome nt and then goes off, and, finally, LED1 through LED8 are blinking sequentially.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 1-5 Using ADSP-21364 EZ-KIT Lite Installation and Session Startup L For correct operation, install the software and hardware in the order presented in the VisualDSP++ Install ation Quick Reference Card .
Installation and Session Startup 1-6 ADSP-21364 EZ-KIT Lite Ev aluation System Manual 5. The Select Connection Type page of the wizard appears on the screen. Select ADSP-21364 and click Next . 6. The Select Platform page of the wizard appears on the screen.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 1-7 Using ADSP-21364 EZ-KIT Lite Evaluation License Restrictions The ADSP-21364 EZ-KIT Lite installation is part of the VisualDSP++ installation. The EZ-KIT Lite is a lice nsed product that offers an unre- stricted evaluation license for th e first 90 days.
Analog Audio 1-8 ADSP-21364 EZ-KIT Lite Ev aluation System Manual The parallel flash memory and the SR AM connect to the parallel port of the processor. The parallel port is a multiplexed address and data port. The port can connect to 8-bit and 16-bit memory devices.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 1-9 Using ADSP-21364 EZ-KIT Lite opposed to the on-board oscillator, allows synchroniza tion of multiple devices in the system. This is done on the EZ-KIT Lite when data is com- ing from the S/PDIF receiver and being output through the audio codec.
LEDs and Push Buttons 1-10 ADSP-21364 EZ-KIT Lite Ev aluation System Manual LEDs and Push Buttons The EZ-KIT Lite has eight general-purpose user LEDs and four gen- eral-purpose push buttons. Two of the general-purpose push buttons are attached to the FLAG pins of the processor, while the othe r two are attached to the DAI pins.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 1-11 Using ADSP-21364 EZ-KIT Lite The LEDs connect to the parallel port pins, AD7–0 , via a latch. The parallel port of the processor can be set up as a memory bus or as general-purpose FLAG pins. The latch allows the LEDs to be written to in both cases.
Example Programs 1-12 ADSP-21364 EZ-KIT Lite Ev aluation System Manual Example Programs Example programs are provided with the ADSP-21364 EZ-KIT Lite to demonstrate various capabilities of the evaluation board.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-1 2 ADSP-21364 EZ-KIT LITE HARDWARE REFERENCE This chapter describes the hardware design of the ADSP-21364 EZ-KIT Lite board.
System Architecture 2-2 ADSP-21364 EZ-KIT Lite Ev aluation System Manual System Architecture This section describes the processor’ s configuration on the EZ-KIT Lite board shown in Figure 2-1 . This EZ-KIT Lite has been designed to demonstrate the capabilities of the ADSP-21364 processor.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-3 ADSP-21364 EZ-KIT Lite Hardware Reference The CLKIN pin of the processor connects to a 24.576 MHz oscillator. The core frequency of the processor is de rived by multiplying the frequency at the CLKIN pin by a value determined by the state of the processor pins, CLKCFG1 and CLKCFG0 .
System Architecture 2-4 ADSP-21364 EZ-KIT Lite Ev aluation System Manual All of the PP signals are available ex ternally via the expansion interface connectors ( J1–3 ). The pinout of the connectors can be found in “ADSP-21364 EZ-KIT Lite Schematic” on page B-1 .
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-5 ADSP-21364 EZ-KIT Lite Hardware Reference DAI Interface The pins of the digital application in terface (DAI) connect to the signal routing unit (SRU). The SRU is a fl exible routing system, providing a large system of signal flows within the processor.
System Architecture 2-6 ADSP-21364 EZ-KIT Lite Ev aluation System Manual To use the DAI for a different purpose, disable any signal driving the DAI pins, with a switch. See “Codec Setup Switch (SW7)” on page 2-10 for how to. In addition, the codec setup swit ch can route the ou tput signal of the 12.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-7 ADSP-21364 EZ-KIT Lite Hardware Reference For information on how to disable the push buttons from driving the cor- responding processor flag pin, see “Push Button Enable Switch (SW9)” on page 2-11 .
System Architecture 2-8 ADSP-21364 EZ-KIT Lite Ev aluation System Manual Limits to the curren t and to the interface speed must be taken into consid- eration when using the expansion interf ace. The maximum current limit is dependent on the capabilities of the us ed regulator.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-9 ADSP-21364 EZ-KIT Lite Hardware Reference Switch Settings Figure 2-4 shows the location and default settings of the EZ-KIT Lite switches. Electret Microphone Select Switch (SW6) To connect an electret microphone to the audio input, pl ace all positions of the SW6 switch ON .
Switch Settings 2-10 ADSP-21364 EZ-KIT Lite Ev aluation System Manual Codec Setup Switch (SW7) The codec setup switch ( SW7 ) can re-route signal s going to the AD1835A codec and can setup the communic ation protocol of the codec. Positions 1 and 2 determine the clock routing for the audi o oscillator to the codec and to the processor.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-11 ADSP-21364 EZ-KIT Lite Hardware Reference SPI Disable Switch (SW8) The SPI interface switch ( SW8 ) disables the SPI chip select lines connected to the SPI flash memory and the AD1835A audio codec.
Switch Settings 2-12 ADSP-21364 EZ-KIT Lite Ev aluation System Manual When position 6 is ON , the values of the LEDs ar e set by writing to a mem- ory location. The lower 8 bits of the data written to the address 0x1400 0000 set the values of the LEDs.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-13 ADSP-21364 EZ-KIT Lite Hardware Reference Loop-Back Test Switch (SW11) The loop-back test switch ( SW11 ) is located at the bottom of the board. This switch is used for testing; al l switch positions should remain OFF .
LEDs and Push Buttons 2-14 ADSP-21364 EZ-KIT Lite Ev aluation System Manual General Purpose LEDs (LED8–1) Eight general-purpose LEDs connect to the processor through a latch on signals AD7–0 . The LEDs can be accessed by writing to the FLAG registers or by writing to a memo ry address.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-15 ADSP-21364 EZ-KIT Lite Hardware Reference Push Buttons (SW1–4) Four push buttons ( SW1–4 ) are provided for ge neral-purpose user input. Two push buttons connect to the FLAG pins of the processor.
Connectors 2-16 ADSP-21364 EZ-KIT Lite Ev aluation System Manual Connectors This section describes the connector functionality and provid es informa- tion about mating connectors.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-17 ADSP-21364 EZ-KIT Lite Hardware Reference Audio In RCA Connector (J4) Audio Out RCA Connector (J5) Headphone Out Jack (J6) P ar t Description Manufactur er P ar t N umber 90-position 0.05” spac ing,SMT SAMTEC SFC-145-T2-F-D-A Mating Connectors 90-position 0.
Connectors 2-18 ADSP-21364 EZ-KIT Lite Ev aluation System Manual Power Jack (J7) The power connector ( J7 ) provides all of the power necessary to operate the EZ-KIT Lite board. The power connector supplies DC po wer to the EZ-KIT Lite board. Table 2-7 shows the power supply specifications.
ADSP-21364 EZ-KIT Lite Eval uation System Manual 2-19 ADSP-21364 EZ-KIT Lite Hardware Reference SPI Header (P2) The SPI connector ( P2 ) provides access to all of the SPI sig nals in the from of a .1” spacing header. In addition, the FLAG1 signal can be used as a chip select.
Connectors 2-20 ADSP-21364 EZ-KIT Lite Ev aluation System Manual JTAG Header (ZP4) The JTAG header ( ZP4 ) is the connecting point for a JTAG in-circuit emulator pod. When an emulator connects to the JTAG header, the USB debug interface is disabled. L Pin 3 is missing to provide keying.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual A-1 A ADSP-21364 EZ-KIT LITE BILL OF MATERIALS The bill of materials corresponds to “ADSP-21364 EZ-KIT Lite Sche- matic” on page B-1 . Please check the latest schematic on the Analog Devices Web site: h ttp://www.
A-2 A DSP-21364 EZ-KIT Lite Ev aluation System Manual 10 1 FDC658P SO T23-6 U13 F AIR CHILD FDC658P 11 1 21364 M25P20 "U12" U12 ST MICRO M25P20-VMN6TP 12 1 21364 AM29L V081B "U19" .
ADSP-21364 EZ-KIT Lite Evalua tion System Manual A-3 ADSP-21364 EZ-KIT Lite Bill Of Materials 25 3 .05 45X2 CON019 J1-3 SAMTEC SFC-145-T2-F-D-A 26 1 DIP8 SWT016 SW11 C&K TDA08H0SB1 27 1 DIP6 SWT01.
A-4 A DSP-21364 EZ-KIT Lite Ev aluation System Manual 41 11 0.1UF 50V 10% 0805 C21,C45,C47, C120-121,C132-133, C141,C148,C152, C156 A VX 08055C104KA T 42 4 1000PF 50V 5% 0805 C82-83,C88,C98 A VX 08 05.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual A-5 ADSP-21364 EZ-KIT Lite Bill Of Materials 56 1 100 1/8W 5% 1206 R8 P ANASONIC ERJ-8GEYJ101V 57 4 237.0 1/8W 1% 1206 R13-14,R18,R20 VISHA Y CR CW1206237RFKEA 58 2 750.0K 1/8W 1% 1206 R11,R116 VISHA Y CRCW1206750KFKEA 59 4 5.
A-6 A DSP-21364 EZ-KIT Lite Ev aluation System Manual 70 8 1.65K 1/8W 1% 1206 R23,R26,R29,R32, R35,R38,R41,R44 VISHA Y CRCW12061K65FKEA 71 10 10UF 16V 20% CAP002 CT1-9,CT12 P ANASONIC EEE1 CA100SR 72 .
ADSP-21364 EZ-KIT Lite Evalua tion System Manual A-7 ADSP-21364 EZ-KIT Lite Bill Of Materials 85 8 1000PF 50V 5% 0402 C130,C135,C137, C139,C143,C146, C150,C154 A VX 04025C102JA T2A 86 2 64.
A-8 A DSP-21364 EZ-KIT Lite Ev aluation System Manual 102 1 100K 1/8W 5% 1206 R125 VISHA Y CRCW1206100 KFKEA 103 10 270 1/8W 5% 1206 R138-139,R177-184 VISHA Y CRCW1206270 RJNEA 104 8 604.0 1/8W 1% 1206 R127-134 P ANASONIC ERJ-8ENF6040V 105 4 1UF 20V 20% A CT15-18 A VX T AJA105K020R 106 1 255.
D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No. Date Sheet of DEVICES ANALOG Rev ADSP-21364 EZ-KIT Lite A0190-2004 2.
3.3V 3.3V D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No. Date Sheet of DEVICES ANALOG Rev ADSP-21364 EZ-KIT Lite A0190-2004 2.
3.3V 3.3V 3.3V 3.3V D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No. Date Sheet of DEVICES ANALOG Rev ADSP-21364 EZ-KIT Lite A0190-2004 2.
A5V AGND A5V 3.3V 3.3V A5V AGND A5V AGND 3.3V AGND 5V 3.3V 5V AGND D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No.
A5V AGND A5V AGND AGND AGND AGND D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No. Date Sheet of DEVICES ANALOG Rev ADSP-21364 EZ-KIT Lite A0190-2004 2.
A5V AGND A5V AGND AGND AGND AGND AGND D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No. Date Sheet of DEVICES ANALOG Rev ADSP-21364 EZ-KIT Lite A0190-2004 2.
AGND A5V AGND A5V A5V AGND AGND AGND AGND AGND AGND AGND A5V AGND AGND AGND AGND AGND D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No. Date Sheet of DEVICES ANALOG Rev ADSP-21364 EZ-KIT Lite A0190-2004 2.
3.3V D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No. Date Sheet of DEVICES ANALOG Rev ADSP-21364 EZ-KIT Lite A0190-2004 2.
3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 2D 3D 4D 5D 6D 7D 8D GND LE VCC OE 1D 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q PFI RESET MR PFO RESET 3.3V 3.3V D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No.
SHGND 3.3V D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No. Date Sheet of DEVICES ANALOG Rev ADSP-21364 EZ-KIT Lite A0190-2004 2.
PGND PGND IN CS PGATE FB COMP GND PGND 3.3V MSC009 RUBBER FOOT MSC009 RUBBER FOOT MSC009 RUBBER FOOT MSC009 RUBBER FOOT MSC009 RUBBER FOOT SHGND ITH VIN SYNC_MODE VFB SW RUN GND PLL_LPF 5V SHGND D 4 3 2 1 A B C 20 Cotton Road Nashua, NH 03063 A B C D 4 3 2 1 PH: 1-800-ANALOGD C Title Size Board No.
ADSP-21364 EZ-KIT Lite Evalua tion System Manual I-1 II N D E X A AD15-8 pins, 2-3 , 2-7 AD1835, CAD and DAC master clock (MCLK), 1-8 , 2-6 AD1835A, CAD and DAC configuration registers, 1-9 , 2-6 DAI .
INDEX I-2 ADSP-21364 EZ-KIT Lite Ev aluation System Manual D DAI block diagram, 2-5 connections, 2-10 , 2-11 header (P3), 2-19 port DAI_P17 pins, 2-10 DAI_P19-20 (SW3-4) pins, 1- 10 , 2-11 , 2-15 DAIP.
ADSP-21364 EZ-KIT Lite Evaluation System Manual I-3 INDEX P package contents, 1-2 parallel flash memory, See flash memory parallel port (PP) boot mode, 2-3 , 2-12 connections, 1-8 , 1-11 , 2-3 control.
INDEX I-4 ADSP-21364 EZ-KIT Lite Ev aluation System Manual USB cable, 1-3 , 2-14 connector (ZJ1), 2-19 interface, 2-8 , 2-20 monitor LED (ZLED3), 2-14 V VisualDSP++ documentation, xix environment, 1-5.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Analog Devices EZ-KIT Lite ADSP-21364 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Analog Devices EZ-KIT Lite ADSP-21364 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Analog Devices EZ-KIT Lite ADSP-21364 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Analog Devices EZ-KIT Lite ADSP-21364 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Analog Devices EZ-KIT Lite ADSP-21364, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Analog Devices EZ-KIT Lite ADSP-21364.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Analog Devices EZ-KIT Lite ADSP-21364. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Analog Devices EZ-KIT Lite ADSP-21364 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
