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HCS12 Microcontrollers freescale.com Cluster (Dashboard) Using S12HZ256 as a Single-Chip Solution Designer Reference Manual DRM084 Rev. 0 10/2006
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HCS12Microcontrollers

freescale.com

Cluster (Dashboard) Using S12HZ256 as a Single-Chip SolutionDesigner Reference Manual

DRM084Rev. 010/2006

Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc.This product incorporates SuperFlash® technology licensed from SST.

© Freescale Semiconductor, Inc., 2006. All rights reserved.

Cluster (Dashboard) Using S12HZ256 as a Single-Chip SolutionDesigner Reference Manual

by: Kenny Lam8/16-Bit Applications Engineering, APTSPGFreescale Semiconductor, Inc.

To provide the most up-to-date information, the revision of our documents on the World Wide Web will be the most current. Your printed copy may be an earlier revision. To verify that you have the latest information available, refer to:

http://www.freescale.com

The following revision history table summarizes changes contained in this document. For your convenience, the page number designators have been linked to the appropriate location.

Revision History

DateRevision

LevelDescription

PageNumber(s)

October,2006

0 Initial release N/A

Cluster (Dashboard) Using S12HZ256 as a Single-Chip Solution Designer Reference Manual, Rev. 0

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Revision History

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Table of Contents

Chapter 1 Introduction

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.2 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 2 Benefits and Features of the 9S12HZ256 Controller

2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.2 Basic Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.3 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112.3.1 User Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112.3.2 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Chapter 3 Stepper Motor Drive Theory

3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.2 Stepper Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.3 Stepper Motor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.4 Stepper Motor Micro-Stepping Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.5 Stepper Stall Detection (SSD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193.6 LCD Driver for LCD Display Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213.7 LCD2 Panel Initialization and Checking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223.8 LCD2 Panel Firmware (API) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Chapter 4 Software Integration

4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.2 Micro-Stepping Control Using Internal Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.3 Motor Running and LCD2 Panel Display Demonstration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274.4 Cluster System Demonstration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Chapter 5 Hardware Schematics

Chapter 6 Bill of Materials

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Table of Contents

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Chapter 1 Introduction

1.1 Introduction

This manual describes the design of a cluster board (dashboard) using Freescale’s S12HZ256 microcontroller unit (MCU). This is a single-chip design for the whole system.

The traditional cluster board uses a cross coil motor to drive the analog pointers (actuator) which move either clockwise or counterclockwise to indicate the car speed, engine rotation speed, fuel level, engine temperature, etc. This technology is well established and widely used throughout the world. However, when the cross coil motor is being assembled, it requires an alignment process. The cross coil motor displacement linearity is also a drawback in regards to the displacement accuracy (linearity), as it may need motor fine tuning during cluster board manufacturing. In view of this, stepper motors can be one alterative solution in this application. In addition, the Moving Magnet Technology (MMT) is more mature for stepper motors nowadays.

The following are some advantages in having the magnet of a stepper motor move relative to a stationary coil set.

1. The stationary drive coils are beneficial to a motor structure, as they can deal effectively with heat dissipation.

2. There are no “flying” leads since the coils are stationary which leads to improved longevity of the motor.

3. The weight of the stationary coils does not affect the maximum velocity of the motor. 4. There is no frictional wear out because the moving magnet concept does not make contact with

any of the stationary elements of motor.

For cluster applications in the automotive segment, Freescale offers the S12H family of devices which can support up to six stepper motors. These devices also include, as a single-chip solution, a 32 x 4 segment LCD driver to show time and mileage updates on a LCD panel. The designers have also integrated Stepper Stall Detection (SSD) in the new derivative of the S12HZ family. This derivative supports up to four stepper motors with SSD.

This manual is based on the 9S12HZ256 features for designing a cluster application.

NOTEThis document is written for the user who is familiar with the S12H256 family and CodeWarrior for S12 and cluster applications. All hardware schematic diagrams and firmware source codes are available as reference materials.

Cluster (Dashboard) Using S12HZ256 as a Single-Chip Solution Designer Reference Manual, Rev. 0

Freescale Semiconductor 7

Introduction

1.2 System Overview

Figure 1-1 provides a pictorial overview of the system.

Figure 1-1. S12HZ256 Dashboard System

Vehicle Speed

CAN Physical Interface

PWMGaugeDrivers

LED

CAN

5V Vcc

PWM

InputSignalCond’n(as req’d)

LM2902MC33174MC33184TL064

Engine RPM

Engine Temp.

Batt. Voltage

Fuel Level

I/C0

I/C1

ADC5

ADC4

ADC3

ADC2

Vreg*Vreg*

I / O

LCDDRIVER

MC9S12Hx16 Bit MCU• Integrated LCD Driver

• 32x4 (112 QFP package)

• Integrated Drive for 4 Stepper Motors With Motor Stall Detection (MSD)(16 hi-current PWM outputs)

• Easier PCB Routing

• Fewer Components

• Higher Reliability

• Cost Effective

Keys

RS232SCI

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Chapter 2 Benefits and Features of the 9S12HZ256 Controller

2.1 Introduction

As shown in this chapter, the S12HZ family of devices offers an excellent complement of peripherals and a broad range of memory and packages.

2.2 Basic FeaturesSome of the S12HZ family benefits are shown below. Features have been broken down by type for your convenience.

HCS12 Core:

• 16-bit HCS12 CPU– Upward compatible with M68HC11 instruction set– Interrupt stacking and programmer’s model identical to M68HC11– 20-bit ALU– Instruction queue– Enhanced indexed addressing

• Multiplexed external bus interface (MEBI)

• Module mapping control (MMC)

• Interrupt control (INT)

• Debugger and breakpoints (DBG)

• Background debug mode (BDM)

Memory:

• 256K, 128K, 64K Flash EEPROM

• 2K, 1K byte EEPROM

• 12K, 6K, 4K byte RAM

CRG:

• Low current oscillator

• Phase locked loop (PLL)

• Reset, clocks

• Computer operating properly (COP) watchdog

• Real time interrupt

• Clock monitor

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Benefits and Features of the 9S12HZ256 Controller

Analog-to-digital converter (ADC):

• 16 channels, 10-bit resolution

• External conversion trigger capability

• Two 1M bit per second, CAN 2.0 A, B software compatible modules:

• Five receive and three transmit buffers

• Flexible identifier filter programmable as 2 x 32 bit, 4 x 16 bit, or 8 x 8 bit

• Four separate interrupt channels for Rx, Tx, error, and wake-up

• Low-pass filter wake-up function

• Loop-back for self test operation

Timer:

• 16-bit main counter with 7-bit prescaler

• Eight programmable input capture or output compare channels

• Two 8-bit or one 16-bit pulse accumulators

Six PWM channels:

• Programmable period and duty cycle

• 8-bit 6-channel or 16-bit 3-channel

• Separate control for each pulse width and duty cycle

• Center-aligned or left-aligned outputs

• Programmable clock select logic with a wide range of frequencies

• Fast emergency shutdown input

Serial interfaces:

• Two asynchronous serial communication interfaces (SCI)

• Synchronous serial peripheral interface (SPI)

• Inter-integrated circuit interface (IIC)

Liquid crystal display driver with variable input voltage:

• Configurable for up to 32 frontplanes and 4 backplanes or general purpose input or output

• Five modes of operation allow for different display sizes to meet application requirements

• Unused frontplane and backplane pins can be used as general purpose input or output

16 high current drivers suited for PWM motor control:

• Each PWM channel switchable between two drivers in an H-bridge configuration

• Left, right, and center aligned outputs

• Support for sine and cosine drive

• Dithering

• Output slew rate control

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Modes of Operation

Four stepper stall detectors (SSD):

• Full step control during return to zero

• Voltage selector and integrator/sigma delta converter circuit

• 16-bit accumulator register

• 16-bit modulus down counter

112-Pin LQFP and 80-Pin QFP packages:

• 85 I/O lines with 5-V input and drive capability

• 5-V A/D converter inputs

• Eight key wake up interrupts with digital filtering and programmable rising/falling edge trigger

• Operating speed:

• Operation at 50 MHz equivalent to 25 MHz bus speed

Development support:

• Single-wire background debug™ mode (BDM)

• Debugger and on-chip hardware breakpoints

2.3 Modes of Operation

2.3.1 User Modes

User modes include:

• Normal and emulation operating modes– Normal single-chip mode– Normal expanded wide mode– Normal expanded narrow mode– Emulation expanded wide mode– Emulation expanded narrow mode

• Special operating modes– Special single-chip mode with active background debug mode– Special test mode (Freescale use only)– Special peripheral mode (Freescale use only)

2.3.2 Low-Power Modes

Low-power modes include:

• Stop mode

• Pseudo stop mode

• Wait mode

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Benefits and Features of the 9S12HZ256 Controller

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Chapter 3 Stepper Motor Drive Theory

3.1 Introduction

The stepper motor (MMT) is an excellent choice for cluster applications. This application employs high current drives suited for pulse width modulator (PWM) motor control, which supports sine and cosine drive, using the 9S12HZ256 device. Software running on the 9S12HZ256 device implements:

• Micro-stepping to achieve precise linear position• Reduced noise• Vibration during stepper motor running.

3.2 Stepper MotorIn theory, although a micro-stepping controller offers hundreds of intermediate positions between steps, but it has some drawbacks. It is worth noting that micro-stepping does not generally offer great precision. This is because of both linearity problems and the effects of static friction.

The utility of micro-stepping is limited by several considerations:

1. The angular precision achievable with micro-stepping will be limited if there is any static friction in the system.

2. It involves the non-sinusoidal character of the torque versus shaft-angle curves on real motors. Sometimes, this is attributed to the detent torque on permanent magnet and hybrid motors. But, in fact both detent torque and the shape of the torque versus angle curves are products of poorly understood aspects of motor geometry. Specifically the shapes of the teeth on the rotor and stator, these teeth are almost always rectangular.

3. Problems arise because most applications of micro-stepping involve digital control systems. Thus, the current through each motor winding is quantized, controlled by a digital-to-analog converter (PWM). Furthermore, if typical PWM current limiting circuitry is used, the current through each motor winding is not held perfectly constant, but rather, oscillates around the current control circuit's set point. As a result, the best a typical micro-stepping controller can do is approximate the desired currents through each motor winding.

In view of these considerations, note that the drive stepper motor running smoothly in micro-stepping depends on the motor characteristics. The number of the steps in micro-stepping selection is also based on the stepper motor. We chose 24 micro-stepping / step in this reference design manual as an example.

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Stepper Motor Drive Theory

3.3 Stepper Motor Control

Figure 3-1 shows a 2-phase step motor control signal. This signal switches on and off in turn and is driven by an H-bridge as shown in Figure 3-2.

Figure 3-1. 2-Phase Step Motor Control Signal

Figure 3-2. H-Bridge

A

/B

CW CCW

B

/A

A

Store trip

A/A

Supply +

- Phase A

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Stepper Motor Control

As shown in Figure 3-3, phase A and B are driven by a square wave to move the rotor. It can be locked at a desired position when the phase supply (square wave) stops to alter.

Figure 3-3. Basic Driving Circuit for Two Phase Step Motor

In order to drive a moving stepper motor, the S12H family offers a simple instruction to control step movement. The example below, uses motor channel 0 to control the stepper motor moving forward. The phase supply sequences are as follows:

Phase A B

0 1

0 0

1 0

void eat_time(int time) //eat time { while(time--!=0){} } void step_move() //step move { MCDC0H &=~0x80; //channel 0 (A = 0, /A = 1) Step 0 MCDC1H |=0x80; //channel 1 (B = 1, /B = 0) eat_time(0x2000); //delay MCDC0H &=~0x80; //channel 0 (A = 0, /A = 1) Step 1 MCDC1H &=~0x80; //channel 1 (B = 0, /B = 1) eat_time(0x2000); //delay MCDC0H |=0x80; //channel 0 (A = 1, /A = 0) Step 2 MCDC1H &=~0x80; //channel 1 (B = 0, /B = 1) eat_time(0x2000); //delay MCDC0H |=0x80; //channel 0 (A = 1, /A = 0) Step 3 MCDC1H |=0x80; //channel 1 (B = 1, /B = 0) eat_time(0x2000); //delay }

A

Gnd Vdd +-

Phase A

Vdd Gnd

Phase B

Rotate

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Stepper Motor Drive Theory

Please refer to the firmware project (1. StepMove) for more detailed information. See Figure 3-4.

Figure 3-4. StepMove Screen

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Stepper Motor Micro-Stepping Control

3.4 Stepper Motor Micro-Stepping Control

The utility of micro-stepping is limited by at least three considerations.

1. Motor static friction

2. Non-sinusoidal character of the torque versus shaft-angle, each motor

3. Winding is quantized, controlled by a digital-to-analog converter (PWM)

The most common control algorithm is adopted to use sinusoidal current to drive micro-stepping. One complete sinusoidal wave is equivalent to four steps in a 2-phase motor.

Phase A is driven by a PWM as sinusoidal to move the rotor. It can also be locked at a desired position when the phase supply stops to alter. The stepper motor can be held by the supply current from the driver as static holding torque.

Phase A and B are driven by a sinusoidal wave to move the rotor. It can be locked at a desired position when the phase supply (sinusoidal wave) stops to alter.

To drive stepper motor moving, the S12H family can use a simple look-up table to implement a sinusoidal signal to drive micro-stepping movement.

Refer to Figure 3-5 and Figure 3-6.

Figure 3-5. Micro-Stepping Sinusoidal Control

A

/B

CW CCW

B

/A

A

St

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Stepper Motor Drive Theory

Figure 3-6. Micro-Stepping Sinusoidal Control with PWM

Please refer to the firmware project (2. MicroStepMove) for more detailed information. See Figure 3-7.

Figure 3-7. MicroStepMove Screen

Supply

A

/PWM PWM+

-

Phase

PWM /PWM

Phase

B

Store trip

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Stepper Stall Detection (SSD)

3.5 Stepper Stall Detection (SSD)

This module provides a built-in circuit to detect the induced voltage on the non-driven coil of a stepper motor. The back EMF can be measured by an internal ADC module, which can integrate the induced voltage on the non-driven coil, and store its results to a16-bit accumulator register. The internal 16-bit modulus down counter can be used to monitor the blanking time and the integration time. The value in the 16-bit accumulator represents the change in linked flux. It can be compared to a stored threshold to distinguish whether the motor reaches the home position. Values above the threshold indicate a moving motor, in which case the pointer can be advanced another full step in the same direction and integration repeated. Values below the threshold indicate a stalled motor, home position is reached.

See Figure 3-8.

Figure 3-8. Stepper Stall Detection Flowchart

Advanced Motor Pointer

Initialized SSD

Start Blinking

NoEnd of Start Blinking

Yes

Start Integration

End of IntegrationNo

Yes

NoStall Detection

Disabled SSD

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Stepper Motor Drive Theory

Please refer to the firmware project (3. StepperStallDetection) for more detailed information. See Figure 3-9.

Figure 3-9. StepperStallDetection Screen

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LCD Driver for LCD Display Panel

3.6 LCD Driver for LCD Display Panel

The S12HZ256 internal LCD driver module has 32 frontplane drivers and 4 backplane drivers. A maximum of 128 LCD segments are controllable. Each segment is controlled by a corresponding bit in the LCD RAM, located at address 0x120–0x137.

Four multiplex modes (1/1, 1/2, 1/3, 1/4 duty) and three bias (1/1, 1/2, 1/3) methods are available. The voltage generator, connected to the VLCD pin, generates voltage levels for the timing and control logic to produce the frontplane and backplane waveforms. Please refer to InitLCD project.

Please refer to the firmware project (4. InitLCD2) for more detailed information. See Figure 3-10 and Figure 3-12.

Figure 3-10. InitLCD2 Screen

Figure 3-11. Turn On All LCD Segments

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Stepper Motor Drive Theory

3.7 LCD2 Panel Initialization and Checking

In this reference design, the 4*18 segment LCD panel is selected. The LCD characters can be turned on/off by writing to the internal LCD registers, which are located at address 0x128–0x137. The LCD2.lib is also available for use. Users need to link to the LCD2.lib in their project.

Please refer to the firmware project (5. LCD2DisplayCheck) for more detailed information. See Figure 3-12 and Figure 3-13.

Figure 3-12. LCD2DisplayCheck Screen

Figure 3-13. Verify LCD2 Segmentsand Their Connections

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LCD2 Panel Firmware (API)

3.8 LCD2 Panel Firmware (API)

Users can use the API to display clock and mileage in the LCD2 panel. Examples are shown in Figure 3-14 and Figure 3-15. Please refer to LCD2DisplayEx project.

Please refer to the firmware project (6. LCD2DisplayEx) for more detailed information.

Figure 3-14. LCD2DisplayEx Screen

Figure 3-15. API Testing for LCD2

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Stepper Motor Drive Theory

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Chapter 4 Software Integration

4.1 Introduction

The previous chapter explained several modules to drive individual application (stepper running in single step, micro-stepping control, LCD driver, motor stall detection, etc.). Now, we have to integrate those modules to implement a Cluster board application. It is a well-known fact that stepper motor vibration is commonly a drawback during motor running, although it only needs simple driving techniques. Thus, micro-stepping is a typical solution when a stepper motor is chosen in an application. In addition, we also need to overcome stepper motor inertia, which plays an important role in driving motor starting smoothly.

4.2 Micro-Stepping Control Using Internal Timer

The gauge pointer is driven by a stepper motor, which can directly reflect how good the Cluster performance is. Thus, some control parameters may be beneficial when introduce in stepper motor control, such as acceleration and maximum velocity even in micro-stepping. The acceleration and maximum velocity parameters can be done by the S12HZ256 internal 16-bit timer module. In this reference design, the acceleration can be pre-calculated as a lookup table (StepProfileBase[]), which is stored in the internal Flash. It can also be retrieved from internal Flash to internal RAM for run time modification in different speed profiles. The maximum speed setting can also prevent the motor from running beyond the limit.

Figure 4-1. Speed Profile

Speed

Time

Max Speed (v)

Acceleration (a)

v = u + at

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Freescale Semiconductor 25

Software Integration

Please refer to the firmware project (7. MicroStepRamp) for detail.

Figure 4-2. MicroStepRamp Screen

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Motor Running and LCD2 Panel Display Demonstration

4.3 Motor Running and LCD2 Panel Display Demonstration

The demonstration code for Stepper Stall Detection (SSD), micro-stepping moving, and LCD2 panel display were done for the user reference. Please refer to MotorLCD2Demo project for details. The software flowchart is shown Figure 4-3.

Figure 4-3. Flowchart of Motor Runningand LCD2 Panel Display

Start

Wake Up Motor to Move

Invoke SSD (Step SSD)

NoStepper Stall?

Yes

Move to Home Position

System Initialization

Motor MoveForward/Backward

Blinking and DisplayInternal Clock

with Mileage to LCD2

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Software Integration

Please refer to the firmware project (8. MotorLCD2Demo) for more detailed information.

Figure 4-4. MotorLCD2Demo Screen

4.4 Cluster System Demonstration

This demonstration code is designed to show the following basic required features of a Cluster system application:

• Motors move and perform stall detection after power up• Motors go back to the home position after a detected stall position• Speedometer movement follows to tachometer movement• Fuel and temperature meters move forward and backward• Mileage updates according to the speedometer reading• Lamp turns on (dimming) when fuel is close to empty (low fuel)• Internal clock display• Mileage can be stored to the internal EEPROM

The software flowchart is shown in Figure 4-5.

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Cluster System Demonstration

Figure 4-5. ClusterDemo Flowchart

Start

Stepper Stall?

Motors Movement Followthe Demo Sequence

LCD2 Initialization

Invoke SSD for 4 Motors

Move to Home Position

System Initialization

Display Mileage andInternal Clock to LCD2

S2 Pressed?

Trip A/B selection

S2 Held Over

Selected Trip Clear

1 Second?

S1 Pressed?

Store Trip Mileage

Power Off

S3 Pressed?

Demo Off

Power On

to EEPROM

S1 Pressed?

S3 Pressed?

No

Yes

No

Yes

Yes

No

Demo On

for SSD

No No

NoNo

Yes Yes

YesYes

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Freescale Semiconductor 29

Software Integration

Please refer to the firmware project (9. ClusterDemo) for more detailed information.

Figure 4-6. Cluster Demonstration Board

S1 — Toggle Switch for Power On / Off

S2 — Mileage Selection for Trip A, Trip B, and ODO

S3 — Toggle Switch for Demo

S1 S2 S3

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Chapter 5 Hardware Schematics

Detailed schematics for this reference design and provided in this chapter.

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Chapter 6 Bill of Materials

Item Quantity Reference Part

1 3 C1, C10, C18 10UF/25V

2 23C2, C4, C6, C7, C8, C15, C17, C19, C20, C21, C22, C23, C24, C25, C26, C27, C28, C29, C30, C31, C32, C49, C50

0U1

3 3 C3, C9, C16 0U001

4 1 C5 47UF/25V

5 8 C11, C12, C13, C14, C45, C46, C47, C48 10UF

6 2 C34, C33 10P

7 1 C39 100P

8 1 C40 0U003

9 1 C41 0U033

10 1 C42 0U047

11 3 C43, C44, C51 0U01

12 1 D1 1N4001

13 10 D2, D7, D9, D11, D12, D13, D14, D15, D16, D17 LED3MM

14 1 D3 BZX84C16T

15 8 D20, D21, D22, D23, D24, D25, D26, D27 LED0603

16 14JNC1, JNC2, JNC10, JNC11, JNC12, JNC13, JNC14, JNC15, JNC16, JNC17, JNC18, JNC19, JNC80, JNC82

JNC

17 20M1, M2, JNO2, M3, JNO3, M4, JNO4, JNO5, JNO6, JNO7, JNO8, JNO9, JNO10, JNO11, JNO12, JNO13, JNO14, JNO15, JNO83, JNO84

JNO

18 4 JP1, JP6, JP8, JP10 JP3_0

19 1 JP2 JP2

20 1 J1 tc18

21 5 J2, J11, J13, J14, J15 CON\1X2PS

22 1 J4 CON\2X4PS

23 2 J20, J5 CON\1X4PS

24 4 J6, J7, J8, J9 CON\2X14PS

25 1 J12 BDM CONNECTOR

26 1 LCD1 LCD DISPLAY (32*4)

27 1 LCD2 LCD DISPLAY (18*4)

28 4 L1, L2, L3, L4 10UH

Continued on the next page

Cluster (Dashboard) Using S12HZ256 as a Single-Chip Solution Designer Reference Manual, Rev. 0

Freescale Semiconductor 37

Bill of Materials

29 2 P2, P1 CON\DB9FR

30 18R1, R28, R30, R62, R63, R64, R65, R66, R67, R68, R71, R72, R73, R74, R75, R76, R77, R78

330

31 2 R4, R2 510

32 1 R3 120

33 2 R18, R5 10K

34 14R6, R7, R21, R29, R31, R32, R33, R34, R43, R46, R47, R48, R60, R61

47K

35 5 R9, R15, R23, R27, R59 1K

36 13R19, R35, R36, R37, R38, R40, R41, R49, R50, R51, R52, R54, R55

4K7

37 1 R24 1K2

38 1 R25 100

39 4 R39, R42, R53, R56 1M

40 4 R44, R45, R57, R58 30K

41 5 S1, S2, S3, S4, S5 SW/6X6MM

42 1 U1 MC7805(DPAK)

43 1 U2 MC33388

44 1 U3 PCA82C250

45 1 U4 MC34X64_SM

46 1 U5 MC9S12HZ128/256-112LQFP

47 1 U6 XTALOSC_DIP_8_14

48 1 U7 MC145407

49 1 U8 74AC125

50 1 U9 LM2901

51 1 Y1 8MHZ

Item Quantity Reference Part

Cluster (Dashboard) Using S12HZ256 as a Single-Chip Solution Designer Reference Manual, Rev. 0

38 Freescale Semiconductor

Document Number: DRM084Rev. 010/2006

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