TMS320F28377DSP硬件原理图.pdf_tms320f28377

TMS320F28377

DSP

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SPRUI25D–June 2015–Revised March 2019

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LAUNCHXL-F28377S overview

User's Guide

SPRUI25D–June 2015–Revised March 2019

LAUNCHXL-F28377S overview

The C2000™ Delfino™ LaunchPad™, LAUNCHXL-F28377S, is a complete low-cost development board

for the Texas Instruments Delfino F2837xS devices. The LAUNCHXL-F28377S kit features all the

hardware and software necessary to develop applications based on the F2837xS microprocessor. The

LaunchPad is based on the superset F28377S device, and easily allows users to migrate to lower cost

F2837xS devices once the design needs are known. It offers an on-board JTAG emulation tool allowing

direct interface to a PC for easy programming, debugging, and evaluation. In addition to JTAG emulation,

the USB interface provides a UART serial connection from the F2837xS device to the host PC.

Contents

1 Introduction ................................................................................................................... 2

2 Kit Contents................................................................................................................... 3

3 Installation .................................................................................................................... 3

4 Getting Started with the LAUNCHXL-F28377S.......................................................................... 3

5 Hardware Configuration..................................................................................................... 5

6 LAUNCHXL-F28377S Hardware........................................................................................... 6

7 References .................................................................................................................. 19

8 Frequently Asked Questions (FAQ)...................................................................................... 20

List of Figures

1 LAUNCHXL-F28377S Board Overview................................................................................... 2

2 LAUNCHXL-F28377S_B Block Diagram Schematic.................................................................... 8

3 LAUNCHXL-F28377S XDS100v2 Schematic............................................................................ 9

4 LAUNCHXL-F28377S Power Schematic................................................................................ 10

5 LAUNCHXL-F28377S_A Schematic..................................................................................... 11

6 LAUNCHXL-F28377S_B Schematic..................................................................................... 12

7 LAUNCHXL-F28377S BoosterPack Schematic ........................................................................ 13

8 Top Silk...................................................................................................................... 14

9 Top Copper ................................................................................................................. 14

10 Inner Copper 1.............................................................................................................. 14

11 Inner Copper 2.............................................................................................................. 14

12 Bottom Silk .................................................................................................................. 14

13 Bottom Copper.............................................................................................................. 14

List of Tables

1 F28377S LaunchPad Pin Out and Pin Mux Options - J1, J3 .......................................................... 6

2 F28377S LaunchPad Pin Out and Pin Mux Options - J4, J2 .......................................................... 6

3 F28377S LaunchPad Pin Out and Pin Mux Options - J5, J7 .......................................................... 7

4 F28377S LaunchPad Pin Out and Pin Mux Options - J8, J6 .......................................................... 7

5 LAUNCHXL-F28377S Bill of Materials .................................................................................. 15

www.ti.com

Kit Contents

SPRUI25D–June 2015–Revised March 2019

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LAUNCHXL-F28377S overview

2 Kit Contents

The LAUNCHXL-F28377S LaunchPad experimenter kit includes the following items:

• C2000 Delfino LaunchPad Board (LAUNCHXL-F28377S)

• Mini USB-B Cable, 0.5m

• Quick Start Guide

2.1 Revisions

The first production revision of the LAUNCHXL-F28377S in 2016 was Revision 1.0.

All Revisions:

• Resistor R7 in the oscillator circuit is incorrectly placed or should not be installed. This resistor may

impact startup time or robustness of the clocking circuit over the full operating range of the MCU or

different physical layouts of this circuit. The probability is low that this resistor will have any impact on

the functionality of this EVM as is not intended to be operated outside of Standard Temperature and

Pressure in a lab or prototype environment. Do not use this circuit as reference. Follow the

requirements for the Oscillator schematic as documented in the MCU Datasheet.

3 Installation

The F28377S LaunchPad is supported in Code Composer Studio.

3.1 Code Composer Studio

3.1.1 Download the Required Software

Code Composer Studio IDE is available for free without any restriction when used with the XDS100 debug

probe on the C2000 LaunchPad. The software can be downloaded from the C2000 LaunchPad page at

ti.com/launchpad. At this site, you can also download a copy of controlSUITE that includes drivers,

examples, and other support software needed to get started.

3.1.2 Install the Software

Once downloaded, install Code Composer Studio and the controlSUITE package.

3.1.3 Install the Hardware

After Code Composer Studio is installed, plug the supplied USB cable into the C2000 LaunchPad board

and into an available USB port on your computer.

Windows

will automatically detect the hardware and ask you to install software drivers. Let Windows run

a search for the drivers and automatically install them. After Windows successfully installs the drivers for

the integrated XDS100v2 debug probe, your LaunchPad is now ready for use.

4 Getting Started with the LAUNCHXL-F28377S

4.1 Getting Started

The first time the LAUNCHXL-F28377S is used, a demo application automatically starts when the board is

powered from a USB host. If your board does not start the demo application, try placing S1 in the following

positions and resetting the board: UP - UP - DOWN. To start the demo, connect the LAUNCHXL-F28377S

with the included mini-USB cable to a free USB port. The demo application starts with the LEDs flashing

to show the device is active.

Getting Started with the LAUNCHXL-F28377S

www.ti.com

SPRUI25D–June 2015–Revised March 2019

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LAUNCHXL-F28377S overview

4.2 Demo Application, ADC Sampling

The LAUNCHXL-F28377S includes a pre-programmed TMS320F28377S device. When the LaunchPad is

connected via USB, the demo starts with an LED flash sequence. After a few seconds the device switches

into an ADC sample mode.

Each second the ADC is sampled and the sample data is relayed to you. If the sample is above mid-scale

(2048), the red LED will light. However, if the sample is below mid-scale the blue LED will light.

In addition to the LED display, sample information is also displayed on your PC through the USB/UART

connection. To view the UART information on your PC, first figure out the COM port associated with the

LaunchPad. To do this in Windows, right click on My Computer and click on Properties. In the dialog box

that appears, click on the Hardware tab and open Device Manager. Look for an entry under Ports (COM &

LPT) titled "USB Serial Port (COMX)", where X is a number. Remember this number for when you open a

serial terminal. The demo applications UART data was written and debugged using PuTTY, and for the

best user experience we recommend you use PuTTY to view the UART data. PuTTY can be downloaded

from the following URL:

http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

Open your serial terminal program and open the COM port you found previously in device manager with

the following settings: 115200 Baud, 8 data bits, no parity, 1 stop bit. After opening the serial port in your

serial terminal, reset the Launchpad with the reset push button and observe the serial terminal for a

surprise.

4.3 Program and Debug the ADC Sample Demo Application

The project and associated source code for the C2000 Delfino LaunchPad demo is included in the

controlSUITE software package and should automatically be found by the TI Resource Explorer in Code

Composer Studio v6. In the resource explorer, open the controlSUITE folder and then the Development

Tools entry and look for the C2000 LaunchPad line item. Expand this item and LAUNCHXL-F28377S,

then select the LaunchPad Demo Application. Follow the steps in the main pane of the resource explorer

to import, build, debug, and run this application.

4.4 Using other Examples

Including the LaunchPad demo example described above, controlSUITE provides many examples

demonstrating a majority of the features of the F2837x MCU. Most examples are configured by default to

use the other hardware which has a different on-board clocking circuit. As such, some examples may not

work as intended without minor modification. To make this easier on the designer, compiler switch has

been added to automatically pick the proper clock configuration based on adding "_LAUNCHXL_F28377S"

as a predefined symbol in the project properties. Refer to for more information on how and where to define

this symbol.

www.ti.com

Hardware Configuration

SPRUI25D–June 2015–Revised March 2019

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LAUNCHXL-F28377S overview

5 Hardware Configuration

The F28377S LaunchPad provides users with several options on how to configure the board.

5.1 ADC Resolution

While the F28377S device has a 16 bit ADC, this development kit has been designed to use the ADC in

its 12-bit mode. The user can use the ADC in its 16-bit mode by driving the proper differential signals into

the ADC. Performance will not be on par with the data sheet [1] due to the reference circuitry being

designed to match the ADC's 12-bit mode.

5.2 Power Domain

The F28377S LaunchPad has several different power domains to enable JTAG isolation. Jumpers JP1,

JP2, JP4, and JP5 configure where power is passed.

Jumper Power Domain

JP1 Enable 3.3 V from USB (disables isolation)

JP2 Enable GND from USB (disables isolation)

JP4 Connects target MCU 3.3 V to second set of BoosterPack

headers

JP5 Connects target MCU 5 V to second set of BoosterPack headers

5.3 Boot Mode Selection

The LaunchPad's F28377S device includes a boot ROM that performs some basic start-up checks and

allows for the device to boot in many different ways. Most users will either want to perform an emulation

boot or a boot to flash (if they are running the application standalone). S1 has been provided to allow

users to easily configure the pins that the bootROM checks to make this decision. The switches on S1

correspond to:

Switch Function

1 GPIO84

2 GPIO72

3 TRSTn

Keep in mind that the debugger does not connect if the device is not in the emulation boot mode (TRST

switch in the up position). More information about boot mode selection can be found in the Boot ROM

section of the TMS320F2837xS Delfino Microcontrollers Technical Reference Manual (SPRUHX5).

5.4 Connecting a BoosterPack

The F28377S LaunchPad is the perfect experimenter board to start hardware development with the

F2837xS devices. All of the connectors are aligned in a 0.1-in (2.54-mm) grid to allow easy and

inexpensive development of add on boards called BoosterPacks. These satellite boards can access all of

the GPIO and analog signals. The the pin out of the connectors can be found in Section 5.

5.5 Device Migration Path

Applications developed on the LAUNCHXL-F28377S can easily be migrated to any of these lower cost

devices in the F2837xS family:

Part Number Description

TMS320F28377S 32 Bit Real Time Microcontroller, 200 Mhz, 1024KB Flash, 164KB RAM, 16 Bit ADC

TMS320F28376S 32 Bit Real Time Microcontroller, 200 Mhz, 512KB Flash, 132KB RAM, 16 Bit ADC

TMS320F28375S 32 Bit Real Time Microcontroller, 200 Mhz, 1024KB Flash, 164KB RAM, 12 Bit ADC

TMS320F28374S 32 Bit Real Time Microcontroller, 200 Mhz, 512KB Flash, 132KB RAM, 12 Bit ADC

剩余21页未读，继续阅读

光与火花

2023-07-26

原理图的细节展示清晰，能够准确地了解DSP硬件设计的实现方法。

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