Cypress CY8CKIT-001 User manual

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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

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Chapter 5 Appendix .........................................................................................................................45
5.1 Revision History.......................................................................................................................................45
5.2 Copyright Statement.................................................................................................................................45

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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.

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1.1
1.1 Features 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

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1.2
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.

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Figure 1-2 TME kit package contents
1.3
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
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: [phone]
Please call from 9am to 6pm, GMT+8 time zone.
zEmail: [email protected]

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Chapter 2
TME Board Architecture
This chapter provides information about architecture and block diagram of the TME board.
2.1
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)

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Figure 2-2 The TME Board PCB and component diagram (bottom view)
2.2
2.2 Block Diagram of 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

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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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The demonstration projects included with this kit show I2C digital temperature sensing and diode
analog temperature sensing (simulated via a potentiometer). The remaining components are
described in Cypress’s Application Notes and are referenced in the corresponding sections of this
User’s Manual.
Figure 2-4 Block Diagram of PSoC Thermal Management EBK

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Chapter 3
Board Component
This chapter describes the specifications of the components used on the PSoC Thermal
Management EBK.
3.1
3.1 40-pin Connector(J14) 40-pin Connector(J14)
The 40-pin interface (2×20 pin header) provides a mechanism to extend the peripheral-set of a
PSoC host board by means of a general purpose input output connector. Figure 3-1 shows the pin
names defined on the GPIO connector (J14) on the Thermal Management EBK.
Figure 3-1 Pin definition on GPIO connector
For maximum flexibility of configuring the on board chip, all I/O pins of them are routed to the
GPIO connector. Table 3-1 gives the pin assignments of the GPIO connector.

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Table 3-1 Pin assignments and descriptions on GPIO connector
Pin Numbers Name PSoC Description
1 TACH4 P1.7 Fan 4’s tach reading
2 PWM4 P1.6 Fan 4’s PWM signal
3 TACH3 P1.5 Fan 3’s tach reading
4 PWM3 P1.4 Fan 3’s PWM signal
5 TACH2 P1.3 Fan 2’s tach reading
6 PWM2 P1.2 Fan 2’s PWM signal
7 TACH1 P1.1 Fan 1’s tach reading
8 PWM1 P1.0 Fan 1’s PWM signal
9 AGND GND Analog Ground
10~18 NC NC No Connect
19 AGND AGND Analog Ground
20 NC NC No Connect
21 TD-I P0.7 Temp Diode iDAC
22 TD-K P0.6 Temp Diode Cathode
23 TD-A P0.5 Temp Diode Anode
24 ONEWIRE P0.4 One Wire Temp Sensor
25 I2C-TEMP_SDA P0.3 TMP175 Temp Sensor Serial Data
26 I2C-TEMP_SCL P0.2 TMP175 Temp Sensor Serial Clock
27 PWM-OUT P0.1 PWM Temp Sensor Out
28 PWM-IN P0.0 PWM Temp Sensor In
29 AGND GND Analog Ground
30 NC NC No Connect
31 NC NC No Connect
32 SMBUS_ALERT_n P12.2 ALERT#
33 SMBUS_SDA P12.1 Serial Data
34 SMBUS_SCL P12.0 Serial Clock
35 VDD3P3 3V3 3V3
36 NC NC No Connect
37 GND GND GND
38 VDD5 5V 5V
39 VDD12_DVK 12V 12V
40 GND GND GND
Table 3-2 TME Jumper Settings
Headers and Jumpers Description Factory Default
Configuration
J1 5 pin header for connecting an external
reader via I2C/SMBus. -
J2 3 pin header to choose between Single and 1-2 position

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Dual modes for PWM Temperature Sensor.
Place jumper in 1-2 position to enable Dual
PWM mode.
J3 3 pin header for VDDIO power jumper. Place
in 1-2 to VDD5. Place in 2-3 position to
VDD3P3
2-3 position
J4 4 pin header (1.25mm pitch) to connect Fan 1
– supplies Power (Vdd), PWM input, and
carries Tachometer output
Not connected
J5 4 pin header (1.25mm pitch) to connect Fan 2
– supplies Power (Vdd), PWM input, and
carries Tachometer output
Not connected
J6 4 pin header (1.25mm pitch) to connect Fan 3
– supplies Power (Vdd), PWM input, and
carries Tachometer output
Not connected
J7 4 pin header (2.54 mm pitch) to connect Fan 1
– supplies Power (Vdd), PWM input, and
carries Tachometer output
Not connected
J8 4 pin header (2.54 mm pitch) to connect Fan 2
– supplies Power (Vdd), PWM input, and
carries Tachometer output
connected
J9 3 Pin header for 12V power jumper. Place in
1-2 position to source external power only
from Power Jack. Place in 2-3 position to
source power from the DVK header or Power
Jack.
1-2position
J10 4 pin header (2.54 mm pitch) to connect Fan 3
– supplies Power (Vdd), PWM input, and
carries Tachometer output
Not connected
J11 4 pin header (2.54 mm pitch) to connect Fan 4
– supplies Power (Vdd), PWM input, and
carries Tachometer output
Not connected
J12 4 pin header (1.25mm pitch) to connect Fan 4
– supplies Power (Vdd), PWM input, and
carries Tachometer output
Not connected
J13 Power Jack -
J14 2×20 pin header for accessing PSoC DVK Port
Pins. -
J15 2×20 pin header for accessing PSoC DVK Port
Pins. -

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3.2
3.2 K Ki it t c co om mp pa at ti ib bi il li it ty y
This kit is compatible with both the PSoC Development Kit - CY8CKIT-001B and the PSoC 3
Development Kit – CY8CKIT-030. Note early revisions of the PSoC Development Kit
(CY8CKIT-001 or CY8CKIT-001A) contained an early engineering release of the PSoC CY8C38
Device Family Processor Module (ES2) which is not compatible with the example projects that
accompany this kit. Ensure you have the appropriate hardware before continuing.
3.3
3.3 PWM Temperature Sensor PWM Temperature Sensor
This section describes the digital chip TMP05 temperature sensor on the PSoC Thermal
Management EBK Board. TMP05 is a monolithic temperature sensor that generates a modulated
serial digital output (PWM). The duty cycle of this PWM signal is proportional to the ambient
temperature measured by this device. The high period (TH) of the PWM remains static over all
temperatures, while the low period (TL) varies. The ratio of TH/TL provides an estimate of the
temperature as per the formula: Temperature (°C) = 421 – (751 ×TH/TL). This sensor is generally
operated in one of three modes: (1) one-shot; (2) daisy-chain; and (3) continuous conversion modes.
For more detailed information, please refer to the device datasheet which is available on
manufacturer’s website or under the datasheet folder of the system CD.
Figure 3-2 shows the connectivity of the TMP05 module in the PSoC Creator Schematic. A single
TMP05 module supports up to 2 TMP05 PWM modules in daisy chain mode. P_IN and P_OUT
represent digital input and output ports respectively which are, in turn, routed to the PSoC device’s
external pins and further routed via the 40-pin header to the sensors on the EBK.
Figure 3-2 shows th the PSoC Creator
Schematic. A single TMP05 module supports up to 2 TMP05 PWM modules in daisy
chain mode. P_IN and P_OUT represent digital input and output ports respectively
e connectivity of the TMP05 module in

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erature) this block is designed to capture the TMP05/06 PWM outputs automatically
without firmware intervention. Firmware simply needs to initiate a new measurement using the
rovided API and is then free to attend to other functions until the hardware indicates temperature
data has been collected by generating an interrupt or a DMA request. The temperature data will be
r to the application note for details and theory of
which are, in turn, routed to the PSoC device’s external pins and further routed via
the 40-pin header to the sensors on the EBK. TMP05 Module Connection
Cypress’s Application Note AN65977 – “Interfacing to a TMP05/06 Digital Temperature Sensor
with PSoC 3” describes in detail how to interface to digital sensors that encode the measured
temperature into a pulse-width-modulated (PWM) signal. The duty cycle of the PWM is directly
proportional to temperature. Since the conversion time for those sensors is long (100 ms typically at
room temp
p
stored to SRAM for subsequent processing. Refe
operation.
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3. .4 4 I I2 2C C T Te em mp pe er ra at tu ur re e S Se en ns so or r
erature sensing capability using a TI two-wire digital
temperature sensor TMP175. I2C digital temperature sensors are very typical sensors for thermal
CD.
Figure 3-3 shows the connectivity of the TMP175 module in the PSoC Creator Schematic.
I2C_TEMP_SDA and I2C_TEMP_SCL represent serial data and serial clock respectively which are
in turn routed to the PSoC’s external pins and further routed via the 40-pin header to the actual
component on the EBK.
The PSoC TME EBK demonstrates I2C temp
management and are used in a variety of communication, computer, consumer, environmental,
industrial and instrumentation applications. This chip uses the 3.3V CMOS signaling. For more
detailed information, please refer to its datasheet which is available on manufacturer’s website or
under the /datasheet folder of the system
Figure 3-3 Wiring between PSoC and I2C Temperature Sensor
The PSoC Creator I2C master component can be configured to run the I2C interface at 100 kbps or
400 kbps. Like any I2C application, multiple I2C temperature sensors such as the LM75 or
MP175 can be daisy chained to the same I2C bus I/O pins on PSoC. Firmware will initiate I2C
read transfers to get current temperature measurements from the I2C temp sensors. That data will be
T

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ng. Refer to the I2C Master Component
block.
stored in an SRAM buffer for subsequent processi
Datasheet inside PSoC Creator for more details on this
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3. .5 5 1 1- -W Wi ir re e T Te em mp pe er ra at tu ur re e S Se en ns so or r
alarm function with nonvolatile user-programmable
upper and lower trigger points. The DS18S20 communicates over a 1-Wire bus that by definition
a central microprocessor. It has an
operating temperature range of –55°C to +125°C. This chip uses 3.3V CMOS signaling. For more
detailed information, please refer to its datasheet which is available on manufacturer’s website or
under the /datasheet folder of the system CD.
Figure 3-4 shows the connections between DS18S20 and PSoC.
The PSoC TME EBK can demonstrate 1-wire temperature sensing capability using a Maxim 1-wire
high precision digital thermometer, DS18S20. The DS18S20 digital thermometer provides 9-bit
Celsius temperature measurements and has an
requires only one data line (and ground) for communication with
Figure 3-4 Wiring between PSoC and 1-Wire Temperature Sensor
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3. .6 6 D Di io od de e A An na al lo og g T Te em mp pe er ra at tu ur re e S Se en ns so or r
lta Vbe method described in
Cypress Application Note AN60590 – “Temperature Measurement Using Diode” can be used in this
on and relevant mathematical
equations. The implementation is driven by hardware as much as possible so that measurements can
be taken in the background without CPU intervention. This will free the CPU to perform other
application tasks outside the context of the thermal manager solution.
Figure 3-5 shows the connections between PSoC and MMBT3904.
MMBT3904 is designed as a general purpose amplifier and switch. The useful dynamic range
extends to 100mA as a switch and to 100MHz as an amplifier. The de
design. Refer to that application note for the theory of operati

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Figure 3-5 Diode Analog Temperature Sensor
3.7
3.7 4-Wire Fan Socket 4-Wire Fan Socket
The TME board provides four industry standard 4-wire interface connectors, and two AVC DC fans.
The fan speeds are controllable up to 13,000 RPMs via PWM control, with frequency generator
signal output to calculate actual fan speeds or the tachometer reading. For more detailed
information please refer to its datasheet which is available on manufacturer’s website or under the
datasheet folder of the system CD.
Table 3-3 Pin assignments and descriptions on Fan connector
Pin Numbers Name Colors Description
1 - Black GND
2 + Red DC 12V
3 FG Yellow Frequency Generator Signal
4 PWM Blue PWM Control Signal
Figure 3-6 shows the connections between PSoC and Fans.

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Figure 3.7 Block diagram of Fan Controller

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Chapter 4
Demonstrations on TME
This chapter illustrates a reference design for the TME board.
4.1
4.1 Introduction Introduction
This demonstration shows how to use the PSoC kit to control the TME board.
4.2
4.2 System Requirements System Requirements
The following items are required for the TME demonstration:
zCY8CKIT-001 PSoC Development Kit or CY8CKIT-030 PSoC 3 Development Kit
zTME board
zDC 12V/2A Power Adapter (included with the TME kit)
4.3
4.3 Software Installation Software Installation
Perform the following step to install the PSoC Thermal Management Expansion Board Kit
software:
zInsert the kit CD into the CD drive of your PC. The CD is designed to auto-run and the kit
menu should appear（Figure 4-1）.