Texas Instruments MSP430F663 Series Manual de usuario

SLAU316 – April 2010 1

Getting Started

Thank you for requesting the MSP430F663x Sample Kit. This kit gives you an opportunity to

evaluate the first device in the MSP430 F6xx family.

This Getting Started guide reviews the contents of your kit and provides an overview for how to

quickly get started with the MSP430F6638 experimental device.

Contents

1What is MSP430F6638? ..................................................................................................................1

2Sample Kit Contents .......................................................................................................................2

3Documentation Available Online ...................................................................................................2

4Getting Started with F66xx/F56xx Development ..........................................................................2

4.1 Setting up the IDE .....................................................................................................................2

4.2 MSP-FET430UIF Installation.....................................................................................................3

4.3 MSP-TS430PZ100 USB Target Board......................................................................................3

4.3.1 On-Board Connectors....................................................................................................4

4.3.2 Jumper Settings.............................................................................................................4

4.4 Setting up a USB Code Example ..............................................................................................5

4.4.1 Attach the USB-FET Tool to the PC ..............................................................................5

4.4.2 MSP430F6638 Target Board Connections....................................................................5

4.4.3 USB Firmware for the F6638.........................................................................................5

4.4.4 Using CCS/IAR to Compile/Download/Run the Firmware .............................................6

4.5 USB Device First-Time Enumeration ........................................................................................8

4.6 Verifying USB Device Installation and Determining COM Port Assignment............................13

4.7 Running a USBCDC Demo Application using HyperTerminal ................................................14

5Special Considerations for the MSP430F66xx Device...............................................................17

5.1 Memory Map ...........................................................................................................................17

5.2 Backup Battery Subsystem .....................................................................................................18

5.3 XT1 Oscillator..........................................................................................................................18

5.4 RTC_B Module........................................................................................................................18

6Support and Updates....................................................................................................................19

1What is MSP430F6638?

The MSP430F6638 is an F6xx-architecture-based MSP430 device equipped with Full Speed

USB2.0.

Please note that the included MSP430 samples are XMS430F6638 prototype device and have

not met or completed Texas Instrument’s internal reliability qualification requirements. These

devices are for prototyping purposes only and not intended to be used in production systems.

Therefore, the devices are sampled on an “as is” basis and Texas Instruments makes no

warranty of fitness for a specific purpose.

2Getting Started

The device is subject to errata items, as detailed in the MSP430F66xx Errata document that can

be found in the product folder web page.

Before proceeding, please also review the X430F66xx Experimental Device Disclaimer

document,accompanying this document.

2Sample Kit Contents

1. One XMSP430F6638 device sample

2. Target board with 100-pin socket (MSP-TS430PZ100USB), with eight 1x20 pin headers

(four male and four female) and an USB Cable (Type A to B).

Please note that this board does not support other 100-pin MSP430 devices and only

supports the MSP430F66xx.

3Documentation Available Online

It is recommended to download the following documents from www.msp430.com from the

F6638 product folder by selecting the ‘Technical Documents’ tab.

1. Device Datasheet

2. MSP430x5xx Family User’s Guide

3. Application Report: PMM, UCS, Port Mapping, and Flash Libraries for the MSP430x5xx and

MSP430x6xx Devices

4. MSP430F66xx Device Erratasheet

5. Starting a USB Design Using MSP430 MCUs

6. MSP430 USB CDC + HID API Stacks for USB development.

7. MSP430F663x C and ASM IAR Code Examples

8. MSP-TS430PZ100USB Target Board schematic

4Getting Started with F66xx/F56xx Development

4.1 Setting up the IDE

Code Composer Studio v4:

Go to www.msp430.com. Select the ‘Tools & Software’ tab and scroll down to CCS V4

MCU Core Edition. This version of CCS will have built-in support for the F66xx device

family. Install this version of CCS in a separate folder to be used for F66xx development.

IAR Workbench Kickstart:

Go to www.msp430.com. Select the ‘Tools & Software’ tab and scroll down to IAR

Kickstart (Code limited IDE). This version of IAR will have built-in support for the F66xx

Getting Started 3

device family. Install this version of IAR in a separate folder to be used for F66xx

development.

Note: Downloading the latest IDEs from the TI website will provide you with versions that include

F66xx support. It is not required to install any device specific patches when using these

versions.

4.2 MSP-FET430UIF Installation

1. Connect the Emulation Interface with the USB cable to a USB port of your PC.

2. The USB FET should be recognized instantly as the USB device driver should have been

installed already with the IDE installation. If for any reason the Install Wizard starts, respond to

the prompts and point the wizard to the driver files which are located (on a default installation) in

directory:

CCS: C:\Program Files\Texas Instruments\MSP430_USB_DRIVERS_v3\USB

IAR: C:\ProgramFiles\IAR Systems\Embedded Workbench x.x\430\drivers\TIUSBFET\WinXP

The MSP430 Hardware Tool User’s Guide (Appendix F) gives detailed instructions how to install

the USB drivers. A link to this document can be found in www.msp430.com under the User’s

Guides tab.

3. Use the 14-conductor (JTAG) cable to connect the evaluation module to a FET programmer (14-

conductor cables are supplied with the FET programmers - parallel PC-FET (MSP-FET430Pxxx)

and USB-FET (MSP-FET430Uxxx)). Ensure that the JTAG cable is plugged in correctly and that

all jumpers (LEDs, and Vcc) are in place.

4. The evaluation module is now ready to be used for programming and debugging the MSP430.

4.3 MSP-TS430PZ100 USB Target Board

This section gives a brief description of the MSP430F6638 target board; on-board connectors

and jumper settings. Figure1 shows the MSP-TS430PZ100 USB target board.

4Getting Started

Figure 1. MSP-TS430PZ100 USB Target Board

4.3.1 On-Board Connectors

•JTAG Connector: The 14-pin JTAG pin header is used to connect the USB-FET tool

(MSPFET430UIF)

•USB Connector: The USB type B connector on the target board is used to connect the USB

cable (Type A to B) between PC and the target board

4.3.2 Jumper Settings

The default jumper settings of the target board are:

1. JP3 set to internal (FET powered)

2. JP2 closed (LED)

3. JP4 open (not USB powered)

Getting Started 5

This section discusses about the two power scenarios (MSP-FET430UIF powered and USB

powered) and the correct jumper settings required in both the cases.

• USB Powered Scenario (default jumper setting): Connect pin 3-2 of JP3 to indicate to the

MSP-FET430UIF that external on-board power is used. Close jumper JP4 connection in order to

use the USB bus power.

NOTE: The USB connection from the MSP430 target board to the PC can only be used for

powering the device (if bus powered configuration is set) and for USB transmissions to and from

the MSP430.

To open a debug session via the IDE, the MSP-FET430UIF is required.

• USB FET Powered Scenario: Place jumper on pins 1-2 of JP3 to use the internal USB FET

power and make sure pin header JP4 is not closed. Pin Header JP1 is closed in both the power

scenarios cases. This jumper can be removed to measure board current.

4.4 Setting up a USB Code Example

Detailed information on the MSP430 USB offering is available in the document Starting a USB

Design Using MSP430 MCUs. The section below outlines getting started with development on

the F6638 using a USB code example.

4.4.1 Attach the USB-FET Tool to the PC

Connect the USB-FET tool to a spare USB port on the PC using the USB cable.

If the USB-FET tool (MSP-FET430UIF) is attached to the PC for the first time, the device must

be installed as described in section 4.2.

4.4.2 MSP430F6638 Target Board Connections

•Place the XMSP430F6638 unit in the device socket that is present on the MSP-TS430PZ100

USB Target board

•To ensure the jumper settings on the target board are correct (default jumper settings) refer to

section 4.3.2 of this document

•Connect the 14 pin conductor cable between the JTAG connector on the target board and the

MSP-FET430UIF FET tool.

•Make sure the USB cable (Type A to B) is used to connect the Type B USB connector on the

target board and a spare USB port on the PC.

4.4.3 USB Firmware for the F6638

The USB Communications Device Class (CDC) API firmware can serve as the foundation of a

USB application on the MSP430. The CDC is a device class supported by the USB

Implementers’ Forum, as well as all major OSes, which causes a “virtual” COM port to be

mounted on the PC. The COM port can then be accessed by various PC applications. One such

6Getting Started

PC application is the HyperTerminal, which is installed as part of a Windows and is therefore

available on any Windows-based PC.

The USB API stacks and all the demo example codes/applications that use the USB CDC API

can be downloaded from the MSP430F6638 product folder online, under the Tools & Software

section. For detailed information regarding the USB stacks, refer to the documents MSP430

USB CDC API Examples.pdf that is located within the zip file.

4.4.4 Using CCS/IAR to Compile/Download/Run the Firmware

If the default power jumper settings are used: make sure the USB cable is connected between

the Type B connector on the target board and a spare serial port on the PC.

First download the “MSP430 USB CDC+HID API Stacks” present in the MSP430F6638 online

product folder under the Tools & Software section to a known location on the PC.

The following steps help compile and debug the API firmware in both CCS and IAR development

platforms:

If using CCS:

a) Copy and extract the contents of the USB CDC API firmware USB CDCv1.19 for

CCSv4 .zip, that is present in the “MSP430 USB CDC+HID API Stacks” zip file, to a

known location on the PC <...Your Working Directory \ USB CDCv1.19 for CCSv4 >

b) Start CCSv4 Core Edition (Start ÆPrograms ÆTexas Instruments ÆCode

Composer Studio v4 ÆCode Composer Studio v4 Core Edition)

c) If opening the example projects for the first time:

Upon being asked to select a workspace directory in the “Workspace Launcher”

dialog, use the ‘Browse’ button to select the folder path, <...Your Working

Directory \ USB CDCv1.19 for CCSv4 \ Workspace>. CCSv4 creates a new

workspace in this folder path.

Once CCS has created the workspace, import the project USBCDC_Example1

that is present at the PC location <...Your Working Directory \ USB CDCv1.19 for

CCSv4 > into the workspace using PROJECT ÆOpen Existing Project. An

“Open Existing Project” window appears; use the ‘Browse’ button next to the

Select Root Directory option to select the folder path <...Your Working Directory \

USB CDCv1.19 for CCSv4 \ USBCDC_Example1>. The project

“USBCDC_Example1” gets selected in the ‘Projects:’ space. Then click ‘Finish’.

Multiple projects can be imported into this workspace

Jump to Step (d)

If project is already linked to a workspace that you want to use:

Upon being asked to select a workspace directory in the “Workspace Launcher”

dialog, use the ‘Browse’ button to select the folder path, <...Your Working

Directory \ USB CDCv1.19 for CCSv4 \ Workspace> where the CCS workspace

was previously created for the project.

Getting Started 7

Make sure the right project is select as the active project in the workspace.

d) Make sure that in PROJECTÆPROPERTIES ÆCCS BUILD ÆGENERAL, the

Device Variant ‘MSP430F6638’ is selected.

e) Use PROJECT ÆREBUILD ALL to build and link the source code. To view the

source code, double-click on the project, and then double-click on the displayed

source file.

f) Use TARGET ÆDEBUG ACTIVE PROJECT to start the debugger. The debugger

will erase the device Flash, and then download the application object file to the

device Flash.

g) A firmware mismatch/update window may pop-up while trying to download the source

code to device, for the first time. Click on “Update” to update the emulator firmware

h) Refer to the FET User’s Guide, FAQ on Debugging #1 if the debugger is unable to

communicate with the device.

i) Use RUN ÆRUN to start the application. If the device is connected to the PC for the

first time with the firmware running, device installation/first time enumeration occurs.

If using IAR:

a) Copy and extract the contents of the USB API firmware USB CDCv1.19 for IAR .zip,

that is present in the “MSP430 USB CDC+HID API Stacks” zip file, to a known

location on the PC <...Your Working Directory \ USB CDCv1.19 for IAR >

b) Start the IAR Workbench which was installed.

Start ÆPrograms ÆIAR Systems ÆIAR Embedded Workbench Kickstart for

MSP430 ÆIAR Embedded Workbench

c) Open the IAR workspace provided in the USB CDC code examples. Navigate

through FILE ÆOpen ÆWorkspace and use the ‘Open’ button to select the folder

path <...Your Working Directory \ USB CDCv1.19 for IAR \ Workspace

d) Select the USBCDC_Example1 project and Make sure that under

PROJECTÆOPTIONSÆCategory: FET DebuggerÆSetup tabÆCONNECTION

option, the Texas Instruments USB-IF or Texas Instruments LPT-IF is selected.

e) Next use PROJECTÆREBUILD ALL to build and link the source code.

f) Next use PROJECT ÆDOWNLOAD and DEBUG to start the download and debug

process. The debugger will erase the device Flash, and then download the

application object file to the device Flash.

g) A firmware mismatch/update window may pop-up while trying to download the source

code to device, for the first time. Refer figure below. Select “Yes” to update the

emulator firmware

8Getting Started

h) Refer to the FET User’s Guide, FAQ on Debugging #1 if the debugger is unable to

communicate with the device.

i) Use DEBUGÆGO to start the application. If the device is connected to the PC for the

first time with the firmware running, device installation/first time enumeration occurs.

Refer Section 4.6

4.5 USB Device First-Time Enumeration

When a USB device is attached to a USB host (PC), the host enumerates it; that is, it queries

the device as to what it is, and loads the corresponding drivers. The first time a device is

attached, the OS may need help in locating the corresponding drivers so it can install the new

device. Windows requests this by prompting the “Found New Hardware” wizard.

Drivers for CDC (Communications Device Class) are already installed within Windows, but

Windows needs to be guided to an *.inf file (MSP430_CDC.inf) included with this kit. Using this

*.inf file, Windows can finish loading the appropriate drivers.

NOTE: The enumeration procedure discussed here, takes place only the first time a specific

USB device is connected to the USB host (PC). Successive enumerations for the same USB

device happen without any need for user intervention.

The following steps give a detailed description of the device installation/first-time enumeration

procedure for MSP430F6638 (under Windows XP). The procedures are also somewhat similar

for other Windows operating systems.

1. On connecting the MSP430F6638 target board to PC, Windows detects the new device

attached to PC and initiates the “Found New Hardware Wizard” prompting the user to

install the software for the detected USB Device.

2. Select "No, not this time" from the options available and then click "Next" to proceed with

the installation.

Getting Started 9

3. Select "Install from a list or specific location (Advanced)" as shown below and then click

"Next".

4. In the “Choose your search and installation options” window, select “Search for best

driver in these locations” options and use the browse button to enter the file path that

contains the USB API firmware in the combo-box. The *.inf file (MSP430_CDC.inf) is

stored in the following folder location:

10 Getting Started

<...Your Working Directory \ USB CDCv1.19 for CCSv4 (or IAR) \ USBCDC_Example1 >

Once the file path has been entered in the box, click “Next” to proceed

5. Wait while the wizard searches the driver files associated

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