NXP Semiconductors Freescale TWR-56F8200 Manual de usuario

Quick Start Guide

TWR–56F8200

Tower System Module for MC56F823xx

and MC56F827xx

Digital Signal

Controllers

TOWER SYSTEM

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Get to Know the TWR-56F8200 Board

TWR-56F8200

Freescale Tower System

The TWR-56F8200 module is part of the Freescale Tower System, a

modular development platform that enables rapid prototyping and

tool re-use through reconfigurable hardware. Take your design to the

next level and begin constructing your Tower System today.

Secondary

Tower Connector

Thermistor RT4

and Header

USB Connector

Thermistor RT3

and Header

OSBDM/UART

Target Power LEDs

Reset Push Button

JTAG/Multilink

Header

MC56F82748

DSC

Power Connector

Thermistor RT2

and Header

LEDs

Thermistor RT1

and Header

Primary Tower

Connector

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TOWER SYSTEM

Introduction

• The TWR-56F8200 is a standalone

development board that can be used

in conjunction with the Tower System

peripheral boards, including the LV3PH

motor control kit (TWR-MC-LV3PH).

The MC56F82748 comes preloaded with

an application demonstrating the ADC

and a FIR filter application that will sense

heat at the four corners of the module.

Other demo applications and complete

instructions and software on how to

turn a 3-phase BLDC motor using the

LV3PH motor control kit are available

at freescale.com/TWR-56F8200.

• The module features serial communication

over USB, CAN circuits and access to

each pin. The module can be powered

by the Tower System, an external

power supply, the USB jack or a board

connected to the Tower System. The

MC56F82748 is surrounded by easy

access scope probes for each pin of the

device. All signals are also available on

the headers for easy and neat coupling

to your project.

• The Universal Multilink is used with the

JTAG connector to allow user code to

be loaded and debugged. The latest

version of firmware is preloaded into

the JM60 USB controller.

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MC56F82748 Features

•

50/100 MHz, 50/100 MIPS 32-bit core for fast control loop execution via

single-cycle math computations and parallel moves

• Fractional arithmetic supported for greater speed with four accumulators

• DMA controller for reduced core intervention when shifting data from peripherals

• High-resolution PWM with 312 picosecond resolution for accurate adjustment of

the control loops

• 2 x 12-bit high-speed ADCs with 2.5 MSPS resolution reduce jitter on current

and voltage reads

• Four analog comparators with integrated 6-bit DACs that can enable emergency

shutdown of the PWMs

• Integrated PGAs to increase the accuracy of ADC conversions on small voltages

and currents

• Intermodule crossbar directly connecting any input and/or output with flexibility

for additional logic functions (AND/OR/XOR/NOR)

• 5 V tolerant I/O for cost-effective board design

• Memory resource protection unit to ease safety certification

Quick Start Guide

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Step-by-Step Installation Instructions

In this quick start guide, you will learn how to set up the TWR-56F8200 module

and run the default thermistor and LED application.

TOWER SYSTEM

Connect

the Jumpers

Ensure the jumpers are connected as

shown in the TWR-56F8200 Jumper

Options table in the next section to

power the board in standalone mode

with the USB cable providing power,

control and communications. All other

jumpers are preinstalled at the factory in

the desired configuration.

Run the

Thermistor Demo

Plug the USB cable from your computer into

the TWR-56F8200 module. LEDs E0-E7 will

flash in pairs. With a finger, touch one of the

on-board thermistors (RT1, RT2, RT3, RT4)

placed on each corner of the board. By

touching the thermistor, you will increase its

temperature. The change in temperature is

detected by the DSC and it will update the

LED’s flashing pattern. The thermistors and

the LEDs are related as follows:

Thermistor LEDs

RT1 E0, E1

RT2 E2, E3

RT3 E4, E5

RT4 E6, E7

If you remove a finger from the thermistor,

the LED will return to the default flashing

pattern.

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Quick Start Guide

Create

a Project

Install CodeWarrior and run the program.

• From the menu, select “File,” “NEW,”

“Bareboard Project.”

• Assign a project name such as

“ProjDSC” and select “Next.”

• Expand the 56800E (DSC) drop

box, expand 56F827xx, select

“MC56F82748,” then select “Next.”

• Select all of the check boxes on

“Connection to be used.” Select

“Next” twice.

• Select Processor Expert, then select

“Finish.”

3 4

Quick Start Guide

Build an

Application

Wait for Processor Expert to finish loading.

Activity progress can be seen in the lower

right of the IDE screen.

Once idle, click on the project name

“ProjDSC” and then select the hammer

icon to build the project.

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TOWER SYSTEM

Debug an

Application

Set a breakpoint at the “for” instruction

from within the C language program by

right-clicking in the margin to the left of

the “for” statement and selecting “toggle

breakpoint ” from the drop-down list.

From the menu bar at the top of the screen,

find and press the green “play/resume”

button or use F8 on your keyboard.

Quick Start Guide

Load an Application

using Universal Multilink

Connect the Universal Multilink to the

JTAG Connector J14. Make sure the

red wire of the Universal Multilink ribbon

cable connects to pin1 of J14 and

connect the other end to your PC. When

finished building, right-click on the project

name. Select “debug as,” “CodeWarrior

Download.” Select “PnE U-MultiLink” and

click “OK.”

Activity progress can be seen in the

lower portion of the IDE screen. Once

the debugger runs, it will stop in the main

program, allowing you to take control.

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Quick Start Guide

Resume Your Application

at a Breakpoint

The code will run up to the breakpoint

that you set in the previous step. When

it reaches it, the code will stop in the

debugger and display the current

location from which the code is running

at your breakpoint. You then can resume

execution or examine elements of the

application in the IDE.

Run a Sample

Project

Find a desired application in the

“MC56F827xx CodeExample” directory or

develop your own project.

For project importing, exporting and

running directions, see the Getting

Started section of the TWR-56F8200

User Manual, available for download at

freescale.com/TWR-56F8200.

Run 3-Phase BLDC

Motor with LV3PH Motor

Control Kit

To run the 3-phase low-voltage BLDC

motor using the MCLV TWR card, refer to

the “Getting Started” chapter of the TWR-

56F8200 User Manual.

Further Instruction for

TWR-MC-LV3PH Motor

To get a TWR-MC-LV3PH motor turning

quickly, refer to the “Getting Started”

chapter of the TWR-56F8200 User

Manual. Here you will find instructions

detailing how to program your TWR card

with the Motor Spin demo. The software

demonstrates how to get the motor

spinning and then control the motor speed

and direction via the FreeMaster Graphical

User Interface. For more information

on the TWR-MC-LV3PH motor, visit

freescale.com/TWR-MC-LV3PH.

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TOWER SYSTEM

Jumper Option Setting Description

Onboard

Thermistor RT1

Connect

1–2, 3–4 Connect RT1 circuit to the MC56F82748

Open Disconnect RT1 circuit from the MC56F82748

Onboard

Thermistor RT2

Connect

1–2, 3–4 Connect RT2 circuit to the MC56F82748

Open Connect RT2 circuit to the MC56F82748

Interrupt

Request

Button

IRQ1 Select

1–2 Connect SW1 to MC56F82748 pin GPIOC2/TXD0/TB0/

XB_IN2/CLKO

3–4 Connect SW1 to MC56F82748 pin GPIOF6/TB2/PWM3X

Open Disconnect SW1 from the MC56F82748

Interrupt

Request

Button

IRQ0 Select

1–2 Connect SW2 to MC56F82748 pin GPIOF8/RXD0/TB1

3–4 Connect SW2 to MC56F82748 pin GPIOF7/TB3

Open Disconnect SW2 from the MC56F82748

J6 and 7

Power Choice

Selection for

3.3 V Source

J6-1 to

J7-2

Connect the onboard voltage regulator to the

P3_3V power rail

J7-1 to

J7-2

Connect P3_3V_MOTOR to the P3_3V power rail (power the

3.3 V rail from the motor control connector)

J7-2 to

J7-3

Connect P3_3V_ELEV to the P3_3V power rail (power the 3.3

V Rail from the Tower connector)

J7-2 open Disconnect the P3_3V power rail – no power

TWR-56F8200 Jumper Options

The following is a list of all the jumper options. The default installed jumper settings are

indicated by the white text within the green boxes.

Quick Start Guide

Jumper Option Setting Description

Serial Port

Reception

RXD Source

Select (Note

that only one

connection

can be made

to pin 3 at

a time.)

1–2 Connect ELEV_RXD0 from the Tower connector to MC56F82748

pin GPIOF8/RXD0/TB1

2–3 Connect RXD_SEL from the USB serial bridge to MC56F82748

pin GPIOF8/RXD0/TB1

Pin 2 open Disconnect MC56F8200 DSC pin GPIOF8/RXD0/TB1

3–4 Connect RXD_SEL from the USB serial bridge to MC56F82748

pin GPIOF5/RXD1/XB_OUT5

4–5 Connect ELEV_RXD1 from the Tower connector to MC56F82748

pin GPIOF5/RXD1/XB_OUT5

Pin 4 open Disconnect MC56F82748 pin GPIOF5/RXD1/XB_OUT5

Serial Port

Transmission

TXD Source

Select (Note

that only one

connection

can be made

to pin 3 at

a time.)

1–2 Connect ELEV_TXD0 from the Tower connector to MC56F82748

pin GPIOC2/TXD0/TB0/XB_IN2/CLKO

2–3 Connect TXD_SEL from the USB serial bridge to MC56F82748

pin GPIOC2/TXD0/TB0/XB_IN2/CLKO

Pin 2 open Disconnect MC56F82748 pin GPIOC2/TXD0/TB0/XB_IN2/CLKO

3–4 Connect TXD_SEL from the USB serial bridge to MC56F82748

pin GPIOF4/TXD1/XB_OUT4

4–5 Connect TXD_SEL from the USB serial bridge to MC56F82748

pin GPIOF4/TXD1/XB_OUT4

Pin 4 open Shunt for BOOTMOD[1]=0 / Un-shunt for BOOTMOD[1]=1

J10

and

J11

5 V Source

Select

J10-1 to

J11-2

Connect the power in barrel connector (through fuse F1)

to the input of the 3.3 V voltage regulator

J11-1 to

J11-2

Connect P5V_TRG_USB (the switched USB 5 V) to the input of

the 3.3 V voltage regulator

J11-2 to

J11-3 Connect P5V_ELEV to the input of the 3.3 V voltage regulator

J11-2 open Disconnect the input of the 3.3 V voltage regulator

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