DRM107 - Cluster for Motor Bikes and Four Wheelers using MC9S08LG32

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Cluster for Motor Bikes and Four Wheelers using MC9S08LG32 Designer Reference Manual HCS08 Microcontrollers

DRM107 Rev. 0 04/2009

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Cluster for Motor Bikes and Four Wheelers using MC9S08LG32 Designer Reference Manual

by: Manish Kumar Sharma Applications and Reference Design Team Microcontroller Solutions Group, India Design Center 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 Date

Revision Level

04/2009

0

Description Initial release.

Page Number(s) N/A

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Revision History

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Contents Chapter 1 Preface 1.1 1.2 1.3

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Suggested Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 2 Introduction 2.1 2.2 2.3 2.4

Intended Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MC9S08LG32 MCU Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reference Design Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 11 11 12

Chapter 3 Hardware Description 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1 LG32 Cluster Reference Design Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1.1 Microcontroller and Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1.3 LG32 Cluster Reference Design Board Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1.4 Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.2 LG32 Cluster Reference Design Interface Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Cluster Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13 13 14 16 17 18 19 20 21

Chapter 4 Embedded Software Description 4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Embedded Software Flow Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3 Embedded Software Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.1 Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.2 Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.3 Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.4 Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.5 Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.6 Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.7 Battery Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.8 Kilometer Left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.9 Mileage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3.10 HVAC Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22 22 25 25 25 26 26 26 26 27 27 27 27

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4.3.11 4.3.12

Miscellaneous Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Touch Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Chapter 5 Development, Debugging, and Testing of the Embedded Software 5.1 5.2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Application Reprogramming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Appendix A Bill of Material (BOM) Appendix B Schematics B.1 B.2

LG32 Cluster Reference Design Board Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 LG32 Cluster Reference Design Interface Board Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Appendix C MC9S08LG32 Pin Connections on Cluster Reference Design Board Appendix D Digital Sensor Simulation on the Interface Board D.1 D.2

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Simulation Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Appendix E LCD Glass Data Sheet Appendix F Enabling Touch Sensor Application F.1 F.2

Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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Figures Figure 3-1 Figure 3-2 Figure 3-3 Figure 3-4 Figure 3-5 Figure 3-6 Figure 3-7 Figure 3-8 Figure 4-1 Figure 4-2 Figure 4-3 Figure 5-1 Figure 5-2 Figure B-1 Figure B-2 Figure B-3 Figure 5-3 Figure E-1 Figure F-1

Cluster for Motor Bikes and Four Wheelers Block Diagram . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Board Layout Top Layer . . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Board Layout Bottom Layer . . . . . . . . . . . . . . . . . . . . . Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Interface Board Layout Top Layer. . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Interface Board Layout Bottom Layer . . . . . . . . . . . . . . System Level Main Loop Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Switches Press Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SW1 and SW2 Switches Press Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Host PC to LG32 Cluster Reference Design Board via. PEMicro USB to BDM . . . . . . . . BDM Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Board Schematic Page 1 . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Board Schematic Page 2 . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Interface Board Schematic . . . . . . . . . . . . . . . . . . . . . . PWM Output and Analog Input Graphs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LCD Glass Data Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Interface Board with Touch Pad Positions . . . . . . . . . .

14 15 15 16 17 20 20 20 23 24 25 29 29 34 35 36 40 41 43

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Tables Table 3-1 Table 3-2 Table 3-3 Table 3-4 Table A-1 Table A-2 Table C-1

Power Connector (J1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BDM Connector (J2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Signal Input Connector (J3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Module Statistic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Board BOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LG32 Cluster Reference Design Interface Board BOM . . . . . . . . . . . . . . . . . . . . . . . . . . MC9S08LG32 Pin Connections on Cluster Reference Design Board . . . . . . . . . . . . . . .

18 18 18 19 31 32 37

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Chapter 1 Preface 1.1 General This designer reference manual provides all guidelines and considerations used in the development of the cluster for motor bikes and four wheelers reference design. It contains descriptions of the hardware and the application-specific software developed for creating the system.

1.2 Audience This document is intended for application developers who wish to learn how to set up the cluster for motor bikes and four wheelers reference design, as well as those who wish to use a specific part of this reference design and append it to their own application.

1.3 Suggested Reading • • • • • • • • • • • • •

MC9S08LG32 Reference Manual (document number MC9S08LG32RM) MC9S08LG32 Data Sheet (document number MC9S08LG32) MC9S08QD2 Data Sheet (document number MC9S08QD2) MPR084 Data Sheet (document number MPR084) VID29-05 Data Sheet (document number VID29-05) 74ACT125 Data Sheet (document number 74ACT125) Application note titled Interfacing an LCD with MC9S08LG32 (document AN3802) Application note titled Interfacing Stepper Motor with MC9S08LG32 (document AN3817) Application note titled How To Handle Dual Flash Architecture In MC9S08LG32 (document AN3821) Application note titled Emulated EEPROM Implementation in Dual Flash Architecture on MC9S08LG32 (document AN3822) Application note titled The LCD Driver for MC9S08LG32 (document AN3823) Application note titled The EEPROM Emulation Driver for MC9S08LG32 (document AN3824) Application note titled Stepper Motor Motion Control Driver for MC9S08LG32 (document AN3828)

Additional documentation may be found at http://www.freescale.com.

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Preface

Cluster for Motor Bikes and Four Wheelers

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Chapter 2 Introduction 2.1 Intended Functionality This manual describes the reference design of a cluster board using MC9S08LG32. This design is an integrated solution for real world cluster applications like two wheelers, low-end four wheelers, and the industrial market. It provides an example of the speedometer, odometer, tachometer, fuel gauge functionality, and various indicators like left and right turn, check oil, side stand, fog light, head light high beam along with AC flow control indicators found in vehicle dash board applications. This design demonstrates the application of the LCD glass display and stepper motor together by using MC9S08LG32 microcontroller unit (MCU).

2.2 MC9S08LG32 MCU Features • • • • • • • • • • • • • • • • •

Up to 40 MHz high-performance HCS08 CPU core Up to 32 KB on-chip dual flash Up to 2 KB on-chip RAM 8-bit modulo timer (MTIM) with configurable clock inputs Up to 16-channel 12-bit resolution successive approximation analog-to-digital converter (ADC) One internal clock source (ICS): precision trimming of internal reference allows 0.2% resolution and 2% deviation over temperature and voltage Two serial communication interface (SCI) modules One serial peripheral interface (SPI) module One inter-integrated circuit (I2C) module LCD driver, configurable up to 8 × 37 or 4 × 41. Active in lowest power mode. All LCD pins are multiplexed with GPIOs One 2-channel and one 6-channel timer/pulse-width modulator (TPM) Real-time background debug mode (BDM) with ICE Up to 69 standard GPIOs Eight keyboard (KBI) and one IRQ interrupt with selectable polarity 8-bit real time counter (RTC) with low-power operation and wakeup Two temperate range options: –40 °C to +85 °C and –40 °C to +105 °C Available in 48 LQFP, 64 LQFP, and 80 LQFP packages

2.3 Reference Design Features • •

• •

Speedometer Odometer – Trip A – Trip B Digital clock Engine temperature Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0

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Introduction

• • • • • • • • • •

• •

Check oil indicator Fuel gauge Battery power Mileage calculation Kilometer left application Fan ON\OFF Heating, ventilating, and air conditioning (HVAC) control indications Tachometer indication through stepper motor Buzzer for generation of audio 2 key switch – For selecting different options – For programming the clock parameters System diagnostic at power up 6 LEDs for different feature indications – Fog light – Head light – Side stand – Neutral gear – Left turn – Right turn

2.4 Design Benefits The cluster uses a modular concept. The main board with the microcontroller is able to perform the entire cluster and display functionality. The interface board simulates various input signals to drive the main board for vehicle cluster dash board. In addition, this reference design can be used as a hardware platform for software development. For this purpose, the board is equipped with an interface for reprogramming, and the MCU is programmed with the 6-pin single-wire BDM interface for MC9S08 devices. This tool allows the MCU memory to be reprogrammed in-circuit, using the standard 6-pin BDM connector. The module is designed to be housed in a standard 9 × 5-inch case. The cluster for motor bikes and four wheelers demo kit is distributed with the following components: • Cluster demo module • CD-ROM • 12-V power supply

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Chapter 3 Hardware Description 3.1 Introduction The reference design is based on the MC9S08LG32 high-performance MCU for LCD display and current driver ICs 74125 that are analog products driven from the MCU and controlling one VID 29-05, the 2-phase instrumentation stepper motor. NOTE MC9S08LG32 cluster reference design is based on LG32_AH_V10_0409 hardware version.

3.2 Architecture The cluster for motor bikes and four wheelers is an integrated system designed to demonstrate the performance of the Freescale MC9S08LG32 device. This design uses a modular concept and consists of the following: • LG32 Cluster Reference Design Board — This contains the MC9S08LG32 MCU, VID29-05 stepper motor, LCD glass (28 × 4), LEDs, switches (SW1, SW2), and 20-pin connector. • LG32 Cluster Reference Design Interface Board — This contains MC9S08QD2, potentiometers, and switches to simulate various analog and digital sensors. Figure 3-1 provides the module block diagram.

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Hardware Description

Figure 3-1. Cluster for Motor Bikes and Four Wheelers Block Diagram This design consists of two layer printed circuit boards (PCBs) for the LG32 cluster reference design and interface boards For schematics, refer to Appendix B, “Schematics.” The gerber for both the boards is distributed with the MC9S08LG32 Reference Design CD. Cadence SPB 16.01 Design Entry CIS is used for schematic design. The Cadence PCB editor tool is used for layout design and gerber generation.

3.2.1 LG32 Cluster Reference Design Board This board consists of the MC9S08LG32 MCU for controlling various peripherals and the power supply. Figure 3-2, Figure 3-3, and Figure 3-4 provides the layouts of LG32 cluster reference design board, top layer, and bottom layer.

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20-pin connector for sensor inputs

6-pin BDM

Buzzer LED Indicators

Stepper Motor

LCD Glass 28 × 4

12-V Input

MC9S08LG32 MCU

SW1

SW2

Figure 3-2. LG32 Cluster Reference Design Board

Figure 3-3. LG32 Cluster Reference Design Board Layout Top Layer

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Hardware Description

Figure 3-4. LG32 Cluster Reference Design Board Layout Bottom Layer 3.2.1.1 Microcontroller and Peripherals The Freescale 8-bit MC9S08LG32 high-performance microcontroller unit (MCU) controls the entire application and is the heart of the main board. The MCU (U1) uses enhanced central processor unit and embedded peripheral modules. The application occupies the following peripheral modules: • One 16-bit timer/PWM interface module (TPM2), 2 channels in the input capture mode and 1 channel in PWM mode • One 16-bit timer/PWM interface module (TPM1) in the PWM mode • Liquid crystal display driver (LCD) • General-purpose input/output pins (I/O) • Keyboard interrupts (KBI) • 12-bit successive approximation analog-to-digital converter (ADC) For pin muxing of MC9S08LG32 80-pin LQFP and its use in this design, refer to Appendix C, “MC9S08LG32 Pin Connections on Cluster Reference Design Board.” The MCU uses one channel (ADC4) of the ADC to perform fuel-level sensing, one channel (ADC5) for temperature sensing, and one channel (ADC11) for gear-number sensing. The resolution of the ADC is 12 bits. The ADC measures the corresponding voltage provided at its channel input through the header (J3). The MCU can drive a maximum of 41 front planes and 4 back planes of an LCD display. The application uses an LCD display with 28 front planes and 4 back planes. Because of the 4 back planes, a 1/4 duty of the output waveform is set. When the LCD driver is enabled, the back plane waveforms for the selected duty are driven out through the back plane pins. The back plane waveforms are periodic. The speed in km/h, odometer, trip A, and trip B data in km, mileage in kmpl, time in hour and minute, HVAC indicators, fuel levels, check oil, service mode, temperature, engine hot/cold, battery level, etc. are displayed on the 32-pin LCD glass (U5). The MCU uses one channel of TPM (TPM2CH3) for speed input and one channel of TPM (TPM2CH5) for rpm input in input capture mode and one channel of TPM (TPM2CH0) in edge-aligned PWM mode to drive the piezoelectric buzzer for left/right turn audio indication through one channel of 74AC125 tri-state quad buffer.

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For speed and rpm sensor inputs, the appropriate pulse shaping circuit has been added. For the stepper motor application, the MCU drives the stepper motor through a 74AC125 Tri-stated Quad Buffer driver using two channels of TPM (TPM1CH0 and TPM1CH1) in edge-aligned PWM mode along with two GPIOs (PTA4 and PTA5). The KBI provides eight independently maskable external interrupts. The KBI pins are shared with standard I/O pins. The application uses all eight of them: • KBI7 for SW1 • KBI1 for SW2 • KBI2 for left turn input • KBI0 for right turn input • KBI3 for fog light input • KBI4 for head light input • KBI5 for touch sensor input • KBI6 for side stand input The MCU drives the following GPIOs for LED indicators through two 74AC125 ICs: • PTC4 for head light indication red LED • PTA0 for side stand indication red LED • PTA2 for fog light indication red LED • PTA1 for neutral gear indication green LED • PTG2 for right turn indication green LED • PTG3 for left turn indication green LED The MCU also controls the backlighting control of the cluster through one of its GPIO PTB0 and monitors the check oil at PTB1. The MCU is interfaced to a touch sensor on the interface board using I2C interface. The pin PTB1 is connected to the ATTN pin of touch sensor, MPR084, for the MCU to establish connection. For more details on touch sensor application, refer to Appendix F, “Enabling Touch Sensor Application.” The standard 6-pin BDM interface along with USB to BDM wiggler is used to communicate with the PC for reprogramming and debugging the application. The emulated EEPROM is used to store the trip and odometer data. 3.2.1.2 Power Supply The cluster is turned on from the 12-V DC. A simple linear voltage regulator 33269DT-5 is used to provide a 5-V power supply for the cluster devices. The schematic of the power supply can be seen in Figure 3-5.

Figure 3-5. Power Supply

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Hardware Description

It is necessary to save odometer and trip meter data if the power supply from the battery is switched off. The resistor dividers, R1 and R2, monitor the battery power supply and generate an interrupt signal in case a power off occurs. The capacitors C5, C6, and C9 hold a voltage long enough for the microcontroller to perform an interrupt service routine to save the data. C9 can be replaced by a higher value for better discharge time. 3.2.1.3 LG32 Cluster Reference Design Board Connectors

Table 3-1, Table 3-2, and Table 3-3 describe the cluster board connector pin assignments and their description. Table 3-1. Power Connector (J1) Pin

Function

Description

1

VCC Supply

12 V supply I/P

2

GND

Power ground

3

GND

Power ground

Table 3-2. BDM Connector (J2) Pin

Name

Description

1

BKGD

Single wire BDM signal

2

GND

MCU ground

3

NC

Not connected

4

RESET

Reset In and Out from MCU

5

NC

Not connected

6

VDD

MCU supply

Table 3-3. Signal Input Connector (J3) Pin

Function

Description

1

ADC5

For temperature IP

2

ADC4

For fuel IP

3

ADC11

For gear IP

4

KBI0

Right turn IP

5

KBI5

Touch sensor IP

6

KBI2

Left turn IP

7

T2CH3

For speed IP

8

KBI4

For head light IP

9

KBI6

For side stand IP

10

PTI3

SDA

11

T2CH5

For rpm IP

12

PTI0

Check oil IP

13

KBI3

For fog light IP

14

PTI1

TX2

15

PTB1

GPIO

16

PTF4

SCL

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Table 3-3. Signal Input Connector (J3) (continued) Pin

Function

Description

17

GND

Power ground

18

NC

Not connected

19

VDD

5V

20

NC

Not connected

3.2.1.4 Memory Map Table 3-4 shows the organization of cluster reference design software in various files for all tasks and drivers. It also shows the RAM (data) and the flash (code) area occupancy in bytes for running the software. Table 3-4. Module Statistic Name

Data

Code

Const

main.c

0

243

0

MC9S08LG32.c

228

0

0

Start08.c

0

132

0

RTSHC08.c (ansifs.lib)

0

3828

0

ref_design.c

60

2591

12

stepper_int.c

0

1308

0

stepper_data.c

9

0

864

stepper_driver.c

0

942

2

lcd_functions.c

0

1344

0

lcd.c

6

1375

224

EED_Para.asm

34

0

0

FlashErase.asm

0

46

0

FlashInit.asm

0

33

0

FlashProgram.asm

0

57

0

HighVoltage.asm

0

30

0

DataVerify.asm

0

67

0

EED_HighLevel.asm

0

852

0

EED_MidLevel.asm

0

811

0

eeprom_wrapper.c

0

57

0

touch_sensor.c

3

638

0

Other

112

12

2

Total

452

14366

1104

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

19

Hardware Description

3.2.2 LG32 Cluster Reference Design Interface Board This board consists of the MC9S08QD2 MCU for simulating speed and rpm sensors, potentiometer, and switches for simulating other analog and digital sensors. Figure 3-6, Figure 3-7, and Figure 3-8 provides the layouts of LG32 cluster reference design interface board, top layer, and bottom layer.

Figure 3-6. LG32 Cluster Reference Design Interface Board

Figure 3-7. LG32 Cluster Reference Design Interface Board Layout Top Layer

Figure 3-8. LG32 Cluster Reference Design Interface Board Layout Bottom Layer The interface board simulates various analog and digital sensor inputs to the main board. The interface board consists of a MC9S08QD2 MCU that accepts varying analog input through the potentiometers and generates two PWM signals at its output. The frequency of these PWM signals depends on the ADC input through the potentiometer and these PWM signals work as speed and rpm input to the reference design board. Three additional potentiometers are directly connected to the reference design board to simulate

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 20

Freescale Semiconductor

Cluster Setup

fuel level, temperature, and gear number. In addition five push button switches simulate fog light, head light, side stand, left turn, right turn, and check oil signals to the reference design board. Also there is a feature of MPR084 touch sensor that can be mounted and interfaced to MC9S08LG32 using I2C protocol. For details on using touch sensor, refer to Appendix F, “Enabling Touch Sensor Application.” The reference design board is connected to the interface board using a 20-pin FR cable. This interface board can be used to see the cluster functionality in absence of real cluster input signals. Refer to Appendix D, “Digital Sensor Simulation on the Interface Board,” for digital sensor simulation details.

3.3 Cluster Setup The cluster for motor bikes and four wheelers is distributed with embedded software. No additional software is required to run the cluster. To turn on this cluster, cable from the 12-V DC adapter must be plugged in.

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

21

Chapter 4 Embedded Software Description 4.1 Introduction Software on MC9S08LG32 based cluster reference design is the demonstration of all functions available in a two-wheeler and a low-end four-wheeler. The functionality includes integrated cluster features like LEDs for head light, fog light, side stand, neutral gear, left turn, and right turn indications, LCD display for fuel-level, speedometer, odometer, trip A, and trip B distances, mileage, kilometers (km) left, clock, engine temperature, oil change, battery power, service due, HVAC controls, and stepper motor for tachometer display. Speedometer, tachometer, fuel level, neutral gear, engine temperature, and battery meter work on inputs from external sensors (analog or digital). In this reference design, the sensor outputs are simulated using ADC (for analog sensors) and ADC-to-PWM conversion (for digital sensors). Fog light, head light, side stand, left turn, right turn, and check oil indications, the input is provided through switches. An interface board is used for all sensor simulations, switches, and touch panel inputs. NOTE MC9S08LG32 cluster reference design is based on LG32_AS_V10_0409 software version.

4.2 Embedded Software Flow Charts The embedded software consists of the flow charts provided in Figure 4-1, Figure 4-3, and Figure 4-3.

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

22

Embedded Software Description

Start

Initialize all the blocks like TPM, GPIOs, RTC, etc. and peripherals like drive stepper motor to 0 position Run a diagnostic routine to check all the peripherals like rotate the stepper motor and turn on all LCD segments

Update LCD indicators

No

Is quantum time out?

Yes Reset timer and update clock

Capture sensor outputs that is, speedometer, tachometer, fuel gauge, engine temperature, etc.

Update trip A and trip B and odometer distances

Update tachometer that is, rotate stepper motor accordingly

Update LED indicators like right turn, left turn, check oil, etc.

Figure 4-1. System Level Main Loop Flow

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 23

Freescale Semiconductor

Embedded Software Flow Charts

No

No

Yes Switch pressed?

Fog light switch? Yes

No High beam switch?

No Side stand switch? Yes

Yes

Enable fog light indicator LED

Enable high beam indicator LED

Enable side stand indicator LED

Enable right turn signal

Enable left turn signal

No Turn off left turn signal

Yes

Left turn signal active? Yes

No Turn off right turn sSignal

No

Yes

Right turn signal active? Yes

No Right turn switch?

Left turn switch?

Figure 4-2. Control Switches Press Flow

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

24

Embedded Software Description

set_hour=0 set_min=1

set_hour=1 set_min=0

No Yes Is set_hour=0?

Rotate through functions

Rotate through functions

Yes No

Clock set mode active? No

No

SW1 Switch?

Clear Trip B

Yes

Yes

Yes

Yes

Yes Switch Pressed?

Clear Trip A

Held for 3 Secs.?

No Is Trip A?

Go to set clock mode No Yes

No Is Trip B?

No

Is clock displayed?

Clock set Yes mode active?

Exit clock set mode

No SW2 Switch?

No

Yes

Yes Yes Clock set Is mode active? set_hour=0?

No

Increment minute

No Increment hour

Figure 4-3. SW1 and SW2 Switches Press Flow

4.3 Embedded Software Functionality Software on MC9S08LG32 based cluster design performs the integration of tasks described below.

4.3.1 Speedometer The speedometer is a task to capture and calculate the speed of the vehicle through a digital sensor. In the MC9S08LG32 reference design vehicle, speed is displayed on LCD screen. The unit is kmph. The speed is calculated using the frequency of the pulses, input (from the sensor) from the TPM channel dedicated for speed input. Refer to Appendix D, “Digital Sensor Simulation on the Interface Board,” for details of how sensor output is simulated in the interface board.

4.3.2 Tachometer The tachometer is a task to capture and calculate the rate of rotation of the engine's crankshaft through a digital sensor. In the MC9S08LG32 reference design, engine rpm is displayed through a dedicated stepper motor. The rpm displayed is the multiple of 1000 that is, in thousand rotations per minute.

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 25

Freescale Semiconductor

Embedded Software Functionality

The rpm is calculated using the frequency of the pulses, input (from the sensor) from the TPM channel dedicated for rpm input. Refer to Appendix D, “Digital Sensor Simulation on the Interface Board,” for details of how sensor output is simulated in the interface board.

4.3.3 Odometer The odometer is a task to calculate the distance travelled by the vehicle using the vehicle speed and time utilized. In the MC9S08LG32 reference design, odometer is displayed on LCD. The odometer counts every kilometer (km) covered by the vehicle. There are two trip meters (called trip A and trip B) installed in this reference design that keeps the distance count every 100 m (0.1 km). The vehicle driver uses trip meters to see the distance between source and destination; the driver may reset the trips to zero at source.

4.3.4 Clock The real-time clock feature is provided on the LCD display. Each time the vehicle starts, the clock needs to be set by the vehicle driver. The procedure for setting the clock includes the following steps: 1. If the clock is not shown, display the clock by pressing SW1, until the clock is displayed on LCD. 2. If the clock is shown, hold down SW1 for 3 seconds, until the LCD starts blinking. 3. Now clock set mode is entered, press SW2 to increase hours until the desired value. 4. Press SW1 to go to set minutes value. 5. Press SW2 to increase minutes until the desired value. 6. Hold down SW1 for 3 seconds, until the LCD stops blinking. 7. Clock is set and running. NOTE The clock can keep on running even when vehicle is switched off, provided the battery power is supplied to the microcontroller (low-power consumption mode), to avoid setting the clock each time the vehicle is turned on. All the peripherals like LCD, stepper motor will be off in this period.

4.3.5 Temperature Engine temperature is displayed on the LCD by measuring the analog sensor output and converting it to a digital value. This temperature input is used to show the engine hot/cold indication as well as the engine temperature. The unit of engine temperature is degrees celsius (ºC).

4.3.6 Fuel Gauge The fuel gauge is displayed on the LCD. It measures analog sensor output and converts it to a particular level in the fuel meter. The fuel display starts blinking if fuel goes below the critical level defined in the application. NOTE The fuel level value is also used in calculation of mileage and kilometers (km) left. Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

26

Embedded Software Description

4.3.7 Battery Power Battery power is displayed on the LCD. It measures the voltage level of the analog output from the battery. NOTE This output also triggers the low-voltage circuitry of the MC9S08LG32 to result in an interrupt that is used to program critical data like the odometer etc. on emulated EEPROM before power down.

4.3.8 Kilometer Left This feature allows the driver to check the distance that can be covered with respect to remaining fuel. It is calculated based on variation in inputs from the fuel gauge sensor, the speed, and the odometer.

4.3.9 Mileage This function calculates and displays the vehicle mileage while the vehicle is moving. It takes fuel sensor, current speed, and distance travelled readings as inputs.

4.3.10 HVAC Controls Heating, ventilation, and air conditioning controls are displayed on LCD.

4.3.11 Miscellaneous Indications The following indications are often found in a contemporary automotive: 1. Check oil indication is used as a warning to the driver for indicating the critical level of engine oil. In this reference design this is monitored using a GPIO. 2. Engine hot/cold indication is used as a warning to the driver for indicating engine temperature too cool or too hot to be started. This is controlled through the engine temperature output. 3. Service due indication is to inform the driver that the automotive needs to be serviced. It is based on various factors including the kilometers (km) travelled recommended value. 4. Fog light and head light are the LED indications for the driver notification that fog light and head light are turned on, respectively. These indications are based on switch presses. 5. Side stand is the warning for side-stand pulled out that may obstruct the driving. This LED indication is based on switch presses. 6. Left, right turn indicators are provided for signaling the left and right turn of the vehicle to other vehicles. Also a buzzer is associated with these signals for sound indication. These indications are based on switch presses. 7. Neutral gear indication is for driver assistance that vehicle is in neutral gear. This is based on an analog sensor output voltage that is converted to digital value through ADC inside the MC9S08LG32 MCU.

4.3.12 Touch Sensor The touch sensor pads are provided on the Interface board. The finger touches are sensed that work similar to pressing a switch. The MPR084 touch sensor IC is used on interface board for this purpose. NOTE For further details about how to configure the touch panel in software and hardware, refer to Appendix F, “Enabling Touch Sensor Application.” Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 27

Freescale Semiconductor

Chapter 5 Development, Debugging, and Testing of the Embedded Software 5.1 Introduction For additional changes in features or the parameters of the application, you have an option to reprogram the cluster application. The MCU of the cluster application is programmed with the BDM for the HCS08 MCU family that means the MCU memory can be reprogrammed in-circuit using the standard 6-pin BDM connector. The new software can be developed and debugged using Code Warrior 6.2 IDE. The developed software can be tested on the LG32 cluster reference design board. The sensor inputs can be taken from the LG32 cluster reference design interface board in absence of real sensors. NOTE LG32 service pack must be installed along with the fix for ICE.

5.2 Application Reprogramming To reprogram the embedded application using the BDM, you need to have Code Warrior 6.2 installed on the host computer. To use this software, the standard PE micro USB-to-BDM multilink cable must be connected to the BDM connector on board, see Figure 5-1.

Figure 5-1. Host PC to LG32 Cluster Reference Design Board via. PEMicro USB to BDM BKGD

1

2

GND

3

4

RESET

5

6

VDD

Figure 5-2. BDM Connector

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

29

Development, Debugging, and Testing of the Embedded Software

The following steps describe the procedure for reprogramming the application: 1. Browse to location Software/Ref1.zip in the LG32 Cluster Reference Design CD and save it to c:\ of your PC. 2. Extract the Ref1.zip. 3. Open CodeWarrior 6.2. 4. Select File>Open. 5. Browse to c:/Ref1/Ref1.mcp 6. In the Code Warrior window, click to make. 7. Click to debug. 8. When the debugger is launched, click to run. The Code Warrior makes connections and enables the application to run.

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 30

Freescale Semiconductor

Appendix A Bill of Material (BOM) Table A-1. LG32 Cluster Reference Design Board BOM Item

Quantity Reference

Part

Description

MFG Name

MFG PN

MOUNTING HOLE CIRC DRILL 125 CIRC PAD 175 PLATED TRHU HOLE

FOOTPRINT ONLY

FOOTPRINT ONLY

4

BH1,BH2,B Mounting Hole H3,BH4

2

11

C1,C4,C7, C12,C13,C 14,C15,C1 6,C17,C18, C19

0.1UF

CAP CER 0.1UF 50V 5% X7R 0805

KEMET

C0805C104J5RA CTU

3

2

C2,C3

1UF

CAP CER 1UF 25V 10% X5R 0805

Panasonic

ECJ2FB1E105K

4

2

C5,C6

220UF

CAP ALEL 220UF 25V 20% -RADIAL

NICHICON

UPW1E221MPD

5

1

C8

0.47UF

CAP CER 0.47UF 50V 20% Z5U RADIAL

KEMET

C320C474M5U5T A

6

1

C9

10UF

CAP TANT 10UF 10V 10% -3216-18

7

2

C10,C11

22PF

CAP CER 22PF 50V 5% C0G 0805

KEMET

8

1

D1

MURA160T3G

DIODE PWR RECT 1A 600V SMT 403D-01

ON SEMICONDUCTOR

MURA160T3G

9

5

D2,D3,D4, D13,D18

RED

LED RED SGL 20MA SMT

OSRAM

LS M67K-H2L1-1-0-2 -R18-Z

10

3

D5,D6,D7

LGR971

LED GRN SGL 25MA 0805

OSRAM

Q62702P5179

11

10

D8,D9,D10 ,D11,D12, D14,D15,D 16,D17,D1 9

WHITE

LED WHITE DIFFUSED 4-PLCC 30MA SMT

OSRAM

LW E67C-T1V2-5K8L1-Z

12

1

J1

CON_1_PWR

CON 1 PWR PLUG DIAM 2.49MM RA TH -- 430H NI

SWITCHCRAFT

RAPC712X

13

1

J2

HDR_2X3

HDR 2X3 TH 100MIL CTR 330H SN 115L

Samtec

TSW-103-23-T-D

14

1

J3

CON_2X10

CON 2X10 PLUG SHRD TH 100MIL CTR 380H AU

3M

N2520-6002RB

15

1

LS1

PKLCS1212E4 001

BUZZER PIEZO AUDIO 4KHZ 75DB 25VP-P SMT

MURATA

PKLCS1212E400 1-R1

1

VISHAY 293D106X9010A2 INTERTECHNOLOGY TE3 C0805C220J5GA C

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

31

Table A-1. LG32 Cluster Reference Design Board BOM (continued) Item

Quantity Reference

Part

Description

MFG Name

MFG PN

TRAN N CHNL MOSFET PWR 20V 750MA SOT23

ON SEMICONDUCTOR

MGSF1N02LT1

panasonic

EXB28VR000X

16

1

Q1

MGSF1N02EL T

17

1

RN1

ZERO

RNET ISO 4 ZERO OHM 1/32W 0% 0402

18

4

RN2,RN3, RN4,RN5

1k

RNET ISO 4 1K 1/10W 5% SMT

VISHAY CRA12E0831K00 INTERTECHNOLOGY JTR

19

1

R1

2.2K

RES MF 2.20K 1/4W 1% 1206

VISHAY CRCW12062K20F INTERTECHNOLOGY KEA

20

1

R2

1.0K

RES MF 1.00K 1/4W 1% 1206

VISHAY CRCW12061K00F INTERTECHNOLOGY KEA

21

1

R3

10M

RES CF 10M 1/4W 5% AXL

Stackpole Electronics Inc

CF 1/4 10M 5% R

22

5

R4,R5,R6, R20,R21

5.1K

RES MF 5.1K OHM 1/8W 5% 0805

PANASONIC

ERJ-6GEYJ512V

23

12

R7,R8,R9, R10,R11,R 12,R13,R1 4,R15,R16, R17,R23

220

RES MF 220 OHM 1/8W 5% 0805

YAGEO AMERICA

RC0805JR-07220 RL

24

2

R18,R19

0

RES TF 0 OHM 1/8W 1% RC0805

Footprint Only

Footprint Only

25

1

R22

1M

RES MF 1M OHM 1/8W 5% 0805

PANASONIC

ERJ-6GEYJ105V

26

2

SW1,SW2

SPST PB NO

SW SPST PB MOM NO SMT 50MA@50V AG, ROHS

E SWITCH

TL3301NF160QG

27

1

U1

MC9S08LG32 CLK

IC MCU 8BIT HCS08 32K FLASH 2K RAM 2.7-5.5V LQFP80

FREESCALE SEMICONDUCTOR

MC9S08LG32CLK

28

1

U2

33269DT-5

IC VREG LDO 5V 0.8A 0-20V DPAK 3

ON SEMICONDUCTOR

MC33269DT-5.0G

29

3

U3,U4,U6

74ACT125

IC BUF QUAD TS 4.5-5.5V SOIC14

FAIRCHILD

74ACT125SC

30

1

U5

ER47024

LCD DISPLAY 5V TH

GOOD LCD

ER47024

Hong Kong VID Company Limited

VID29-05

ABRACON CORP

31

1

U7

VID29-05

STEPPER MOTOR BIPOLAR 5-10V TH

32

1

Y1

AB26T-32.768 KHZ

XTAL 32.768KHZ RSN -- TH

AB26T-32.768KH Z

Table A-2. LG32 Cluster Reference Design Interface Board BOM Item 1

Quantity 4

Reference BH1,BH2,BH3,BH4

Part

Description

MFG Name

MFG PN

Mounting Hole

MOUNTING HOLE CIRC DRILL 125 CIRC PAD 175 PLATED TRHU HOLE

FOOTPRINT ONLY

FOOTPRINT ONLY

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 32

Freescale Semiconductor

Table A-2. LG32 Cluster Reference Design Interface Board BOM (continued) Item

Quantity

Reference

Part

Description

MFG Name

MFG PN

2

3

C1,C3,C4

0.1UF

CAP CER 0.1UF 50V 5% X7R 0805

KEMET

C0805C104J5 RACTU

3

1

C2

10UF

CAP TANT 10UF 10V 10% -3216-18

4

1

C5

1UF

CAP CER 1UF 25V 10% X5R 0805

Panasonic

ECJ2FB1E105 K

5

8

E1,E2,E3,E4,E5,E 6,E7,E8

touchpad

10mm x 10mm

FOOTPRINT ONLY

FOOTPRINT ONLY

6

1

J1

CON_2X10

CON 2X10 PLUG SHRD TH 100MIL CTR 380H AU

3M

N2520-6002R B

7

1

J2

HDR_2X3

HDR 2X3 TH 100MIL CTR 330H SN 115L

Samtec

TSW-103-23-T -D

8

1

LS1

PKLCS1212E4001

BUZZER PIEZO AUDIO 4KHZ 75DB 25VP-P SMT

MURATA

PKLCS1212E 4001-R1

9

9

R1,R2,R4,R5,R7,R 8,R22,R23,R27

5.1K

RES MF 5.1K OHM 1/8W 5% 0805

10

5

R3,R6,R24,R25,R2 6

3.0K

RES POT 3.0K 1/2W 20% TH

11

1

R9

220

RES MF 220 OHM 1/8W 5% 0805

12

4

R10,R11,R12,R13

4.7K

RES MF 4.7K OHM 1/8W 5% 0805

13

8

R14,R15,R16,R17, R18,R19,R20,R21

1M

RES MF 1M 1/8W 5% 0805

14

6

SW1,SW2,SW3,S W4,SW5,SW6

SPST PB NO

SW SPST PB MOM NO SMT 50MA@50V AG, ROHS

15

1

U1

MC9S08QD2

8 bit MCU SOIC 8

16

1

U2

MPR084Q

IC CTLR 8-PAD TOUCH CAPACITIVE SENSOR 1.8-3.6V QFN16

17

1

Z1

VISHAY INTERTECH 293D106X901 NOLOGY 0A2TE3

PANASONIC ERJ-6GEYJ51 2V

YAGEO AMERICA

RC0805JR-07 220RL

PANASONIC ERJ-6GEYJ47 2V PANASONIC ERJ-6GEYJ10 5V E SWITCH

TL3301NF160 QG

FREESCALE MC9S08QD2S SEMICOND C UCTOR FREESCALE SEMICOND UCTOR

MPR084Q

DIODE ZENER 225MW 3.3V TH

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

33

Appendix B Schematics B.1 LG32 Cluster Reference Design Board Schematic

Figure B-1. LG32 Cluster Reference Design Board Schematic Page 1

Figure B-2. LG32 Cluster Reference Design Board Schematic Page 2

B.2 LG32 Cluster Reference Design Interface Board Schematic

Figure B-3. LG32 Cluster Reference Design Interface Board Schematic

Appendix C MC9S08LG32 Pin Connections on Cluster Reference Design Board Table C-1. MC9S08LG32 Pin Connections on Cluster Reference Design Board Pin No.

MCU Pin Name

Schematic Signal

Function

1

LCD7/PTD7

LCD7

LCD Glass pin 8

2

LCD6/PTD6

LCD6

LCD Glass pin 7

3

LCD5/PTD5

LCD5

LCD Glass pin 6

4

LCD4/PTD4

LCD4

LCD Glass pin 5

5

LCD3/PTD3

LCD3

LCD Glass pin 4

6

LCD2/PTD2

LCD2

LCD Glass pin 3

7

LCD32/PTB3

LCD32

LCD Glass pin 27

8

LCD31/PTB2

LCD31

LCD Glass pin 28

9

LCD40/PTB7

LCD40

LCD Glass pin 29

10

LCD39/PTB6

LCD39

LCD Glass pin 30

11

LCD38/PTB5

LCD38

LCD Glass pin 31

12

LCD37/PTB4

LCD37

LCD Glass pin 32

13

LCD30/PTB1

PTB1

Attn pin of MPR084

14

LCD29/PTB0

PTB0

Backlight

15

LCD1/PTD1

LCD1

LCD Glass pin 2

16

LCD0/PTD0

LCD0

LCD Glass pin 1

17

Vcap1

NC

NC

18

Vcap2

NC

NC

19

VLL1

NC

NC

20

VLL2

NC

NC

21

VLL3

5V

5V

22

PTF5/MOSI/KBI2/T2CH3

KBI2

Left turn input

23

PTF4 /MISO/KBI1/T2CH4

T2CH4

Buzzer

24

PTI5/T2CH0 /SCL /SSB

SCL

SCL

25

PTI4/SPSCK/SDA/T2CH1

SDA

SDA

26

PTI3 I/T2CH2/MOS

PTI3

Stepper select

27

PTI2/T2CH3/MISO

T2CH3

Speed input

28

PTI1 /TMRCLK/TX2

TX2

TX2

29

PTI0/RX2

PTI0

Check oil input

30

PTH7/KBI1/T2CH4

KBI1

SW2 input (clock)

31

VSS2

GND

GND

32

VDD

5V

5V

33

PTF7/EXTAL

Crystal EXTAL

Crystal EXTAL

34

PTF6/XTAL

Crystal XTAL

Crystal XTAL

35

VDDA/ VREFH

5V

5V

36

VSSA/ VREFL

GND

GND

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

37

Table C-1. MC9S08LG32 Pin Connections on Cluster Reference Design Board Pin No.

MCU Pin Name

Schematic Signal

Function

37

PTH6 /T2CH5/ KBI0/ADC15

KBI0

Right turn input

38

PTF2/SPSCK /T1CH1/IRQ/ADC14

ADC14

Battery input

39

PTF1/RX1/T1CH0/ADC13

T1CH0

Stepper channel 1

40

PTF0 /TX1/KBI3 /T2CH2 /ADC12

KBI3

Fog light input

41

PTF3 /SSB/KBI0/T2CH5

T2CH5

rpm input

42

PTH5/TX1/KBI3 /T1CH0/ADC11

ADC11

Gear input

43

PTH4/RX1/KBI2 /T1CH1/ADC10

T1CH1

Stepper channel 4

44

PTH3/KBI7/ADC9

KBI7

SW1(trip input)

45

PTH2/ KBI6/ADC8

KBI6

Side stand input

46

PTH1/KBI5/ADC7

KBI5

Touch pad input

47

PTH0 /KBI4/ADC6

KBI4

Head light input

48

PTC6/RESET_B

RESET

Reset

49

PTC5/ BKGD/MS

BKGD

BKGD

50

PTA7/TCLK /ADC5/LCD28

ADC5

Temperature input

51

PTA6/T2CH1/KBI7 /ADC4 /LCD27

ADC4

Fuel input

52

PTA5/KBI6 /T2CH0/ADC3/LCD26

PTA5

Stepper channel 3

53

PTA4/KBI5 /RX2 /ADC2/LCD25

PTA4

Stepper channel 2

54

PTA3/KBI4 /TX2 /ADC1 /LCD24

PTA3

Indicator chip select

55

PTA2 /SDA/ADC0/LCD23

PTA2

Fog light

56

PTA1 /SCL/LCD22

PTA1

Neutral gear

57

PTG3/LCD36

PTG3

Left turn

58

PTG2/LCD35

PTG2

Right turn

59

PTA0/LCD21

PTA0

Side stand

60

PTC4/LCD20

PTC4

Head light

61

PTC3/LCD19

LCD19

LCD Glass pin 20

62

PTC2/LCD18

LCD18

LCD Glass pin 19

63

PTC1/LCD17

LCD17

LCD Glass pin 18

64

PTC0/LCD16

LCD16

LCD Glass pin 17

65

PTE7/LCD15

LCD15

LCD Glass pin 16

66

PTE6/LCD14

LCD14

LCD Glass pin 15

67

VSS1

GND

GND

68

VLL3_2

5V

5V

69

PTG7/LCD44

LCD44

LCD Glass pin 21

70

PTG6/LCD43

LCD43

LCD Glass pin 22

71

PTG5/LCD42

LCD42

LCD Glass pin 23

72

PTG4/LCD41

LCD41

LCD Glass pin 24

73

PTG1/LCD34

LCD34

LCD Glass pin 25

74

PTG0/LCD33

LCD33

LCD Glass pin 26

75

PTE5/LCD13

LCD13

LCD Glass pin 14

76

PTE4/LCD12

LCD12

LCD Glass pin 13

77

PTE3/LCD11

LCD11

LCD Glass pin 12

78

PTE2/LCD10

LCD10

LCD Glass pin 11

79

PTE1/LCD9

LCD9

LCD Glass pin 10

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 38

Freescale Semiconductor

Table C-1. MC9S08LG32 Pin Connections on Cluster Reference Design Board Pin No.

MCU Pin Name

Schematic Signal

Function

80

PTE0/LCD8

LCD8

LCD Glass pin 9

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

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Appendix D Digital Sensor Simulation on the Interface Board D.1 Overview The method of conversion of analog output to vary digital pulse frequency is used for simulating the digital pulse of sensor for speed and rpm. The MC9S08QD2 is used for this purpose.

D.2 Simulation Details The software running in MC9S08QD2 samples the analog input and accordingly outputs a frequency varying PWM output that is supplied to the MC9S08LG32 to simulate digital sensing.

Analog input to MC9S08QD2

Digital Varying Frequency PWM output to MC9S08LG32

Figure 5-3. PWM Output and Analog Input Graphs

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

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Appendix E LCD Glass Data Sheet

Figure E-1. LCD Glass Data Sheet

Appendix F Enabling Touch Sensor Application The touch pads and the touch sensor IC MPR084 have been provided on the Interface board. To enable this application, you must follow the steps provided in the hardware and software configuration sections.

F.1 Hardware Configuration •

For LG32 cluster reference design board: a. Check that RN5 pin 4 and 5 are shorted and pin 1 and 8 are shorted. b. Add pull up resistor of 4.7 kΩ between pin 10 (SDA) and VDD (pin 19) of J3. c. Add pull up resistor of 4.7 kΩ between pin 16 (SCL) and VDD (pin 19) of J3.

•

For LG32 cluster reference design interface board: a. Mount components R9, Z1,C5, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, and U2 as per the interface board BOM in Appendix A, “Bill of Material (BOM).”

F.2 Software Configuration 1. Make TOUCH_SENSOR_ENABLE=1 in ref_design.h of Ref1.mcp. By default, TOUCH_SENSOR_ENABLE is disabled in software. 2. While in km left mode on LCD, push down SW1 for 3 seconds to enter diagnostic mode. 3. In diagnostic mode, touching pad 1–8 display their respective numbers on the LCD glass. 4. To exit diagnostic mode, turn on/off the board again. Refer Figure F-1 for touch pad positions.

Touch Pads

1

2

3

4

5

6

7

8

Figure F-1. LG32 Cluster Reference Design Interface Board with Touch Pad Positions

Cluster for Motor Bikes and Four Wheelers using MC9S08LG32, Rev. 0 Freescale Semiconductor

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