TWR-S08LH64 Freescale Semiconductor, TWR-S08LH64 Datasheet - Page 3

TWR-S08LH64

Manufacturer Part Number

TWR-S08LH64

Description

TOWER SYSTEM S08LH64

Manufacturer

Freescale Semiconductor

Type

MCUr

Datasheets

1.TWR-SENSOR-PAK.pdf (4 pages)

2.TWR-S08LH64.pdf (2 pages)

3.TWR-S08LH64.pdf (19 pages)

4.TWR-S08LH64.pdf (8 pages)

5.TWR-S08LH64.pdf (3 pages)

Specifications of TWR-S08LH64

Contents

Board

Description/function

Tower System LCD Module

Interface Type

USB

Backlighting

No Backlighting

Data Bus Width

8 bit

Module Size (w X H X T)

3.55 in x 3.2 in

Number Of Segments

2 x 28

Operating Supply Voltage

5 V

Operating Voltage

3.3 V

Product

Display Modules

Software

Software Included

Touch Panel

No Touch Panel

Silicon Manufacturer

Freescale

Core Architecture

HCS08

Core Sub-architecture

HCS08

Silicon Core Number

MC9S08

Silicon Family Name

S08LH

Kit Contents

Board, Cable, CD

Rohs Compliant

Yes

For Use With/related Products

Freescale Tower System

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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TWR-S08LH64—Lab Tutorials 1 and 2

Potentiometer vs. Light

Sensor State

This state uses two ADC channels to read

the position of the potentiometer and the

light sensed by RZ1, the on-module light

sensor. Press switch SW2 and the program

enters Potentiometer vs. Light Sensor state.

The display shows “LI” and the potentiometer

value on the large characters on the bottom

and the light sensor value on the smaller

top right two characters. The third character

displays the <, > or = char comparing the POT

to the light sensor. The two values are also

sent through the SCI port at 19.2 K baud.

1. Launch the “Serial Grapher” utility from the

2. Select your computers com port and set the

3. Click “Open Serial Port and and Start

4. The MCU is measuring the RZ1 light

Accelerometer Graphing State

Press switch SW2 and the program enters

the Accelerometer Graphing state. This

mode uses the 3-axis accelerometer, the

ADC and the SCI to measure and output the

3-axis data. Using the same setup as State

2, you will be able to graph the movement

of the accelerometer as you move the

module. Lab 2 provides a more in-depth

accelerometer demo.

Lab Tutorials for TWR-S08LH64

PEMICRO UTILITY LAUNCH PAD program.

baud rate to 19200, 8 bits, 1 stop bit, no

parity. (Typically COM1)

Demo.” Text similar to this should appear in

the terminal window:

“POT = FD Light Sensor Z1 = 56 “

“POT = FD Light Sensor Z1 = 58 “

“POT = FD Light Sensor Z1 = 65 “

sensor across a feedback resistor in an op

amp buffer with the dedicated differential

input pair DADP0 and DADM0. Adjust the

potentiometer and change the light level

reaching the light sensor and notice the

changes on the display. If ever the values

of the pot and the RZ1 are the same the

buzzer will sound and the display will show

the “=” sign.

Lab

State

Figure 10

ADC Demo State

Press switch SW2 again and enter the ADC

demo state. The LCD displays “ADC.” The

demo does a 16-bit conversion averaged 32

times and displays the lower 12 bits of the

16-bit result in the first three characters as

well as the channel number in the two upper

right characters. Pushing SW4 will increment

the channel converted and displayed.

This mode measures and displays the

selected ADC channel while sending the

data to the SCI output. Using the same

terminal setup as State 2 you will be able to

see the text as shown in Figure 12 being

displayed in the terminal window. Figure 11

is a short description of each of the columns

of the text output. Refer to the LH64

reference manual for detailed description of

the registers being reported.

Figure 11

Column Symbol Description

Lab

CFG1

CLPD

CLPS

CLP4

CLP3

CLP2

CLP1

CLP0

CLMD

CLMS

CLM4

CLM3

CLM2

CLM1

CLM0

Offset

CHNLA

DATAA

VREFT

State

Configuration Register 1

Post Calibration Plus-Side Calibration Values

Post Calibration Minus-Side Calibration Values

Calibration Offset Value

Channel for Data A

Result Data A

VERF Variable

Figure 12

See Figure 13 for ADC channel

assignments.

Press switch SW4 to change the channel and

watch the LCD screen and SCI output. Note

that the VREFO channel (0x13) varies since

the code is looping, modifying the trim of this

voltage reference. This demonstrates the ability

to adjust or trim the VREF output voltage.

Figure 13

Values out of RESET

CFG1= 7D

CFG1 PG

ADCH

100

101

110

111

1000

1001

1010

1011

1100

10000

10001

10010

10011

10100

10101

10110

10111

11000

11001

11010

11011

11100

11101

11110

11111

8278 17

Channel

AD0

AD1

AD2

AD3

AD4

AD5

AD6

AD7

AD8

AD9

AD10

AD11

AD12

AD16

AD17

AD18

AD19

AD20

AD21

AD22

AD23

AD24

AD25

AD26

AD27

AD28

VREFH

VREFL

Module Disabled None

CFG2= 4

CLPD CLPS CLP4 CLP3 CLP2 CLP1 CLP0 MG

SC2= 0

272 013C 9F

Input

ADP0

Reserved

PTA0/ADP4

PTA1/ADP5

PTA2/ADP6

PTA3/ADP7

PTA4/ADP8

PTA5/ADP9

PTA6/ADP10

PTA7/ADP11

ADP12

Reserved

VREFO

Reserved

VLCD

VLL1

Reserved

Temperature Sensor N/A

Internal Bandgap

Reserved

VREFH

VREFL

SC3= 7

SC1A= 9B

Pin Control

ADPC0

ADPC1

ADPC2

ADPC3

ADPC4

ADPC5

ADPC6

ADPC7

N/A

ADPC12

N/A

82B4 16

SC1B= 0

CLMD CLMS CLM4 CLM3 CLM2 CLM1 CLM0 Offset CHNLA DATAA VREFT

Below are two tables of the ADC channel

assignments as they are connected on

the Tower module. Reserved channels are

skipped in the IRQ interrupt routine to set

the next channel.

Figure 14

Figure 15

Channel (Hex)

02BE 015A A9

Function 1

Potentiometer

X – Axis

Y – Axis

Z - Axis

SW3

No Connection

RZ1 Light sensor

SW2

JP10

VREFO

VLCD

VLL1

Temp Sensor

Bandgap

VREFH

VREFL

Function

Dedicated Differential Input

Temperature Sensor

Bandgap Reference

VREFH

Function 2

Zero-G Accel

J2-B27

J2-B28

SW1

J1-A28

J1-A29

(sheet 2 of 2)

448

597

644

06D4 43

816

0D76 45

1504 46

1AAF 47

1E91

2137 49

2252

21AF

2017

1DA9

1B45

Function 3

J1-A27

Accelerometer Demo

This lab will highlight the performance

capability of the MC9S08LH64

microcontroller and show how this

microcontroller can easily interface with a

sensor. It will also detail how to use one of

several software utilities included with your

TWR-S08LH64 module.

The accelerometer application reads the X,

Y and Z axes of the 3-axis accelerometer

on the TWR-S08LH64 module using the

microcontroller’s 16 bit A/D converter. It

outputs the raw values of the accelerometer

data on the microcontroller’s serial

communication interface.

Pressing the SW1 switch outputs a rolling

average of the raw accelerometer data.

Pressing the SW2 switch outputs a filtered

version. Pressing the SW3 switch reverts

back to the raw data output.

Open and Program MCU with

Accelerometer Code

1. Make sure the jumpers are in their default

2. Using CodeWarrior, click File >Open and

3. Compile the code and program the MCU by

4. When the message, “Loading a new

5. When the message, “The debugger is going

6. A debugger environment will open. From

7. Launch accelerometer utility from the

8. Set your computer’s Com port, set the baud

Lab

positions.

open the TWR9S08LH64_Accelerometer

mcp file from the directory on your c:\ where

you unzipped the compressed projects.

clicking on “Debug” button, launching the

debugger.

application will stop execution of the

current one” appears, click “OK.”

to mass erase the non-volatile memory

of the current device, then reprogram the

application” appears, click “OK.”

the main menu, choose “Run > Start/

Continue.” The program will be executed

in real-time.

PEMICRO TOOLKIT LAUNCH PAD and select

“Accelerometer.”

rate to 19200 and click “Open Serial Port

and Start Demo.”

Run Demo and Observe Graph

Note the X, Y and Z and C bar graphs and

the scope window on the accelerometer

graph. If the values are too small to view,

highlight a box around the graph data and

hit the play

The raw XYZ data is being displayed and

the response is very quick.

Press SW2 switch and “averaging” will be

enabled. Notice the “C” bar chart or cycle

count increase and the smoothing effect on

the XYZ data as you move the module.

Figure 16

Press SW1 switch and the FIR filter algorithm

begins executing. The cycle count will

increase again and the response of the

graph will change. Observe the change in

the graph response.

Pressing SW3 switch will return to streaming

the raw data from the accelerometer.

button in the graph window.

TOWER SYSTEM

TWR-S08LH64 Freescale Semiconductor, TWR-S08LH64 Datasheet - Page 3

TWR-S08LH64

Specifications of TWR-S08LH64

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