Cypress CY8CKIT-001 Manuel utilisateur

CONTENTS

Chapter 1 Introduction of the TME Board ...........................................................................................3

1.1 Features ......................................................................................................................................................3

1.2 About the KIT.............................................................................................................................................5

1.3 Getting Help ...............................................................................................................................................6

Chapter 2 TME Board Architecture......................................................................................................7

2.1 Layout and Components.............................................................................................................................7

2.2 Block Diagram of the TME Board .............................................................................................................8

Chapter 3 Board Component .............................................................................................................11

3.1 40-pin Connector(J1)................................................................................................................................11

3.2 PWM Temperature Sensor........................................................................................................................12

3.3 I2C Temperature Sensor...........................................................................................................................15

3.4 1-Wire Temperature Sensor......................................................................................................................16

3.5 Diode Analog Temperature Sensor...........................................................................................................16

3.6 4-Wire Fan Socket....................................................................................................................................17

Chapter 4 Demonstrations on TME....................................................................................................19

4.1 Introduction ..............................................................................................................................................19

4.2 System Requirements...............................................................................................................................19

4.3 Software Installation.................................................................................................................................19

4.4 Hardware Setup: CY8CKIT-001 PSoC Development Kit (PSoC DVK) .................................................21

4.5 Hardware Setup: CY8CKIT-030 PSoC3 Development Kit (PSoC 3 DVK)..........................................22

4.6 Example Projects......................................................................................................................................23

4.7 Running the Example Firmware: CY8CKIT-001 PSoC DVK...............................................................24

4.8 Running the Example Firmware: CY8CKIT-030 PSoC 3 DVK...........................................................25

4.9 Overview of Example1 – Firmware Based Fan Control ..........................................................................26

4.10 Technical Details for Example1..............................................................................................................27

4.11 Overview of Example2 – Closed Loop Hardware Fan Control..............................................................31

4.12 Technical Details Example2...................................................................................................................32

4.13 Overview of Example3– Thermal Management System .....................................................................34

4.14 Technical Details Example3...................................................................................................................36

Chapter 5 Appendix .........................................................................................................................45

5.1 Revision History.......................................................................................................................................45

5.2 Copyright Statement.................................................................................................................................45

Chapter 1

Introduction of the TME Board

Thermal management is the combination of temperature sensing, fan control and the algorithms to

provide critical and optimized cooling to conserve power and reduce acoustic noise while

maintaining appropriate system temperatures. Typical solutions include the interaction with many

forms of both digital and analog temperature sensors. A thermal management solution must be able

to interact with a variety of I2C- or PWM-based digital or thermistor, diode-based or other analog

temperature sensors. Additionally, when controlling the active cooling elements in a system,

typically fans, the thermal management solution must be able to drive many independent control

signals to those elements based on internal algorithms.

The PSoC® 3 architecture enables a flexible and unique method of thermal management all in a

single chip combining the analog sensing capabilities, multiple I2C bus interfaces to sensors and

unique CPLD-like closed- or open-loop fan control capabilities with a built-in MCU available to

run the optimization algorithms for the cooling elements based on system temperature sensors.

The PSoC Thermal Management Expansion Board Kit (EBK) is a part of the PSoC development kit

ecosystem and is designed to work with the CY8CKIT-001 PSoC Development Kit (DVK) and

CY8CKIT-030 PSoC 3 Development Kit (DVK). It enables you to evaluate a system’s thermal

management functions and capabilities of PSoC 3 devices. You can evaluate the example projects

described in this guide or design and customize your own thermal management solution using

components in Cypress’s PSoC CreatorTM software (included in this kit) or by altering example

projects provided with this kit.

The PSoC Thermal Management EBK is used with the PSoC family of devices and is specifically

designed and packaged for use with the PSoC 3 device family. PSoC 3 is a programmable

system-on-chip platform for 8-, 16- and 32-bit applications. It combines precision analog and digital

logic with a high-performance, single-cycle on average, 67 MHz 8051 processor. With the

flexibility of the PSoC architecture, you can easily create your own custom thermal management

solution on chip with the exact functionality you need, in the way you want it – no more, no less.

This kit contains a thermal management expansion board and requires a Cypress host development

board in order to use it. As a part of the PSoC development kit ecosystem, it works with the

CY8CKIT-001 and CY8CKIT-030 kits.

The TME not only delivers the hardware required for system level integration, but is also

accompanied by a set of full source demonstrations illustrating the usage of on-board chip and

guidelines for designing custom specific applications.

1.1

Features

The PSoC Thermal Management EBK is intended to provide a demonstration and development

platform for developing system environmental management co-processor solutions with compelling

example projects that demonstrate a variety of modes:

zTemperature monitoring

zIndependent and closed-loop fan controls

zThermal-management specific communications

zThermal zone management—the relationship between temperatures and cooling functions

zAlgorithms to detect thermal and cooling failures or warnings.

Figure 1-1 shows a photograph of the TME Board.

Figure 1-1 Layout of the TME Board

The key features of the board are listed below:

z40-pin connector

zFour 4-Wire Fan Socket

zI2C Temperature Sensor

zPWM Temperature Sensor

zWire Temperature Sensor

zTemperature Diode

zI2C/SMBus Port

z12V/5V/3.3V power supply

1.2

About

the

KIT

About the KIT

The TME kit includes the following contents:

zPSoC Thermal Management Expansion Board

zQuick Start Guide

zDC 12V/2A Power Adapter

zSystem CD-ROM containing:

oUser Guide

oPSoC Creator and prerequisite software

oPSoC Programmer and prerequisite software

oPME Example firmware

zFor the CY8CKIT-001 DVK

oFirmware based (open loop) Fan Control

oHardware based (closed loop) Fan Control

oThermal Management System

zFor the CY8CKIT-030 DVK

oFirmware based (open loop) Fan Control

oHardware based (closed loop) Fan Control

oThermal Management System

oApplication Note (AN66627) – “PSoC® 3 and PSoC 5 Intelligent Fan Controller”

oApplication Note (AN60590) – “Temperature Measurement Using Diode”

oApplication Note (AN65977 – “Interfacing to a TMP05/06 Digital Temperature Sensor

with PSoC 3”

oDatasheets

zMaxim DS18S20 High-precision 1-Wire Digital Thermometer

zFairchild Semiconductor MMBT3904 Diode Analog Temperature Sensor

zAnalog Devices TMP05 PWM Temperature Sensor

zTexas Instruments Two-wire Digital Temperature Sensor

The system CD contains technical documents of the TME board, which includes components

datasheet, demonstrations, schematics, cable and user manual (this manual).

Figure 1-2 shows the photograph of the TME kit content.

Figure 1-2 TME kit package contents

1.3

PSoC

Creator

PSoC Creator

Cypress's PSoC Creator software is a state-of-the-art, easy-to-use integrated development

environment (IDE) that introduces a game-changing, hardware and software design environment

based on classic schematic entry and revolutionary embedded design methodology.

With PSoC Creator, you can:

zAutomatically place and route select components and integrate simple glue logic typically

implemented in discrete application specific standard products

zTrade-off hardware and software design considerations allowing you to focus on what matters

and getting to market faster.

PSoC Creator also enables you to tap into an entire tools ecosystem with integrated compiler tool

chains, RTOS solutions, and production programmers to support PSoC 3 and PSoC 5 devices.

1.4

Getting

Help

Getting Help

Terasic Technologies provides design consulting services to customers in electronic system

development to help accelerate their system from design to production. Please contact us below for

more info:

Terasic Technologies

zTel: +886-3-550-8800

Please call from 9am to 6pm, GMT+8 time zone.

zEmail: [email protected]

Chapter 2

TME Board Architecture

This chapter provides information about architecture and block diagram of the TME board.

2.1

Layout

and

Components

Layout and Components

The picture of the TME board is shown in Figure 2-1 and Figure 2-2. It depicts the layout of the

board and indicates the locations of the connectors and key components.

Figure 2-1 The TME Board PCB and component diagram (top view)

Figure 2-2 The TME Board PCB and component diagram (bottom view)

2.2

Block

Diagram

the

TME

Board

Block Diagram of the TME Board

Figure 2-3 shows a functional diagram of the PSoC Thermal Management solution. This solution

enables control of up to 16 4-wire fans through CPU based firmware control (open-loop), hardware

control (closed-loop) all as a function of system temperatures (f(T)), all on a single chip. Digital

(1-wire, I2C, PWM) and analog temperature sensors (diode) can be interfaced to the PSoC using

configurable and customizable component modules.

Speed (Tachometer) signals from up to 16 fans are interpreted by the PSoC. In the open loop mode,

fan control can be configured by the firmware running on the PSoC (with CPU intervention). The

firmware synchronizes to hardware using end-of-cycle (eoc) pulses. Fan Drive signals are generated

by individual hardware PWMs on the PSoC (no banks) to drive the 4 wire fans. In the closed loop

mode, speed control is implemented entirely in hardware (no CPU intervention whatsoever). Fan

stall and speed regulation alerts are monitored in hardware. When implemented using a temperature

controlled algorithm, the temperatures are aggregated using a customizable function and then, in

turn, are the inputs to the fan-speed control algorithms. This implementation can also be

implemented in such a way that the relationships between the temperature sensors and specific fans

in the systems create physical thermal zones, which may utilize different algorithms for both

temperature sensor aggregation as well as fan-speed control to provide the optimal cooling in the

respective zones.

To enable thermal monitoring, custom PSoC components used to interface with different analog and

digital sensors are provided. This is explained in Section 4 of this User’s Manual. For analog

sensors, PSoC also provides on-board filtering, multiplexing and a 0.1% accurate internal voltage

reference for high resolution and highly accurate temperature sensor interface. PSoC 3 and PSoC 5

devices also include non-volatile EEPROM memory used in thermal solutions for event logging and

run-time system configuration storage. Communication with a host Board Management Controller

can be achieved via I2C, SMBus, PMBus or a variety of other communications protocols

implemented with easy-to-use PSoC Creator component blocks. In addition, external GPIO’s are

available on the PSoC devices for custom use.

Figure 2-3 Block Diagram of TME Board

Figure 2-4 shows the block diagram of the PSoC Thermal Management EBK. This kit demonstrates

control of up-to four 4-wire fans through firmware control (open-loop), hardware control (closed

loop) and as a function of system temperature – f(T). Two fans are mounted on the EBK. The

demonstration projects included with this kit show all three modes of fan control.

A 40-pin connector is provided on the EBK to route the input/output signals for thermal

management control to the PSoC on the host development board (such as the CY8CKIT-001 or

CY8CKIT-030). This connector carries power, fan PWM control and tachometer data lines, analog

and digital temperature sensor signals. SMBus alert, serial data and serial clock lines are also routed

from the host PSoC to a header on the expansion board. This will enable you to interface to the

EBK and receive alert and status information about the system.

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