User's Guide
SPRUHH2C – July 2012 – Revised March 2019
LAUNCHXL-F28027 C2000 Piccolo LaunchPad
Experimenter Kit
1
2
3
4
5
6
7
Contents
LAUNCHXL-F28027 Overview ............................................................................................. 1
Installation .................................................................................................................... 2
Getting Started with the LAUNCHXL-F28027 ............................................................................ 3
Hardware Configuration ..................................................................................................... 4
LAUNCHXL-F28027 Hardware ............................................................................................ 5
Suggested Reading ........................................................................................................ 11
Frequently Asked Questions (FAQ) ...................................................................................... 12
List of Figures
1
LAUNCHXL-F28027 Board Overview ..................................................................................... 2
2
C2000 LaunchPad Schematic—Sheet 1 of 2 ............................................................................ 7
3
C2000 LaunchPad Schematic—Sheet 2 of 2 ............................................................................ 8
4
LAUNCHXL-F28027 PCB Layout—Top Layer........................................................................... 9
5
LAUNCHXL-F28027 PCB Layout—Bottom Layer ....................................................................... 9
6
LAUNCHXL-F28027 PCB Layout—Silkscreen Image .................................................................. 9
List of Tables
1
C2000 LaunchPad Pin Out and Pin Mux Options ....................................................................... 5
2
LAUNCHXL-F28027 Bill of Materials .................................................................................... 10
1
LAUNCHXL-F28027 Overview
1.1
Overview
The C2000™ Piccolo™ LaunchPad™, LAUNCHXL-F28027, is a complete low-cost experimenter board
for the Texas Instruments Piccolo F2802x devices. The LAUNCHXL-F28027 kit features all the hardware
and software necessary to develop applications based on the F2802x microprocessor. The LaunchPad is
based on the superset F28027 device, and easily allows users to migrate to lower cost F2802x 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 F2802x device to the host PC.
Users can download an unrestricted version of Code Composer Studio™ IDE version 5 to write,
download, and debug applications on the LAUNCHXL-F28027 board. The debugger is unobtrusive,
allowing the user to run an application at full speed with hardware breakpoints and single stepping
available while consuming no extra hardware resources.
As shown in Figure 1, the LAUNCHXL-F28027 C2000 LaunchPad features include:
• USB debugging and programming interface via a high-speed galvanically isolated XDS100v2 debug
probe featuring a USB/UART connection.
• Superset F28027 device that allows applications to easily migrate to lower cost devices.
• Nibble (4-bit) wide LED display.
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1
LAUNCHXL-F28027 Overview
•
•
•
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Two push buttons for user feedback and device reset.
Easily accessible device pins for debugging purposes or as sockets for adding customized extension
boards.
Boot selection and USB and UART disconnect switches.
Serial
TX/RX
LEDs
JTAG Emulator
Circuitry
USB Connection
JTAG
Isolation
Jumpers:
JP1 and JP3
Jumper: JP2
20 PCB Pins
(doubled-sided male connectors)
S4 Serial
Connection Switch
Pre-Programmed C2000
Piccolo TMS320F28027
MCU
S1 Boot
Selection Switch
Programmable
Push Button:
GPIO12
CPU Reset
Push Button
Four LEDs
Figure 1. LAUNCHXL-F28027 Board Overview
1.2
Kit Contents
The LAUNCHXL-F28027 C2000 LaunchPad experimenter kit includes the following items:
• C2000 LaunchPad Board (LAUNCHXL-F28027)
• Mini USB-B Cable, 0.5m
• Quick Start Guide
1.3
Revisions
The first production revision of the LAUNCHXL-F28027 C2000 Piccolo LaunchPad, version 1.0, was
released in July of 2012 and is currently the only revision available.
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.
2
Installation
The C2000 LaunchPad installation consists of three easy steps:
1. Download Code Composer Studio and controlSUITE™.
2. Install Code Composer Studio and controlSUITE.
2
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3. Connect and install the C2000 LaunchPad to the PC.
Now the LaunchPad is ready to develop applications or run the pre-programmed demo.
2.1
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
www.ti.com/c2000-launchpad. At this site, you can also download a copy of controlSUITE that includes
drivers, examples, and other support software needed to get started.
2.2
Install the Software
Once downloaded, install Code Composer Studio and the controlSUITE package.
2.3
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.
3
Getting Started with the LAUNCHXL-F28027
3.1
Getting Started
The first time the LAUNCHXL-F28027 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-F28027
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.
3.2
Demo Application, Internal Temperature Measurement
The LAUNCHXL-F28027 includes a pre-programmed TMS320F28027 device. When the LaunchPad is
connected via USB, the demo starts with an LED flash sequence that points toward S3 in the lower right
corner of the board. Press S3 to start the temperature measurement mode.
A reference temperature is taken at the beginning of this mode and the LEDs of the LaunchPad are used
to display any difference between the current temperature and the reference temperature. Initially, the
LED connected to GPIO3 is lit to indicate an 8 in binary, which corresponds to the current temperature
being equal to the reference temperature. As the temperature drifts away from the reference, the
difference is displayed as a binary increment or decrement of the nibble wide LED display. For instance, if
the reference temperature was 30ºC and the current temperature is 33ºC, the LEDs would be (from left to
right) ON, OFF, ON, and ON which would be 11 in binary (33-30=3 and 11-8=3). A new reference
temperature may be set at any time by pressing S3 again.
In addition to the LED display, temperature 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.
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.
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Getting Started with the LAUNCHXL-F28027
3.3
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Program and Debug the Temperature Measurement Demo Application
The project and associated source code for the C2000 Piccolo LaunchPad demo is included in the
controlSUITE software package and should automatically be found by the TI Resource Explorer in Code
Composer Studio v5. 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-F28027, 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
Hardware Configuration
The C2000 LaunchPad gives users several options as to how to configure the board.
4.1
Power Domain
The C2000 LaunchPad has two separate power domains for the purpose of allowing JTAG isolation.
Jumpers JP1, JP2, and JP3 configure whether the USB power is passed to the target device.
Jumper
4.2
Power Domain
JP1
3.3 V
JP2
Ground
JP3
5V
Serial Connectivity
The LAUNCHXL-F28027 has a USB to UART adapter built in. This makes it easy to print debug
information back to the host PC even in isolated environments. However, in some cases the user may
wish to connect the Piccolo SCI peripheral (C2000 UART peripheral) to a BoosterPack or other hardware
via the header pins. If the SCI pins are connected to both the header pins, the XDS100 UART channel
contention would exist and the pins would not be driven to the correct voltage levels. To solve this issue
we have included a switch to allow the user to disconnect the Piccolo serial pins from the XDS100 UART
connection. When S4 is in the up position, the Piccolo device's SCI is connected to the XDS100 and you
are able to receive and send serial information from or to the board. When S4 is in the down position, the
Piccolo device's SCI is disconnected from the XDS100 and BoosterPacks, which use serial
communication, and can communicate with the Piccolo device.
4.3
Boot Mode Selection
The LaunchPad's F28027 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:
4
Switch
Function
1
GPIO34
2
GPIO37
3
TRSTn
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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
TMS320x2802x Piccolo Boot ROM Reference Guide (SPRUFN6).
4.4
Connecting a Crystal
Although the Piccolo device present on the LAUNCHXL-F28027 has an internal oscillator — and for most
applications this is sufficient — the LaunchPad offers a footprint for surface mount or through-hole HC-49
crystals for users who require a more precise clock. If you wish to use an external crystal, solder the
crystal to the Q1/Q2 footprint and appropriate load capacitors to the C3 and C4 footprints. You also need
to configure the device to use the external oscillator in software.
4.5
Connecting a Satellite Board
The C2000 LaunchPad is the perfect experimenter board to start hardware development with the F2802x
devices. Connectors J1, J2, J5, and J6 and the power supply at J3 are aligned in a 0.1-in (2.54-mm) grid
to allow an easy and inexpensive development of a breadboard extension module. These satellite boards
can access all of the GPIO and analog signals. The alignment of the connectors and the pin out can be
found in Section 5.
4.6
Device Migration Path
Applications developed on the LAUNCHXL-F28027 can easily be migrated to any of these lower cost
devices in the F2802x family:
Part Number
Description
TMS320F28027
(1)
32-bit Real Time Microcontroller, 60 MHz, 32K Flash, 6K RAM, 4 HRPWM
TMS320F28026
32-bit Real Time Microcontroller, 60 MHz, 16K Flash, 6K RAM, 4 HRPWM
TMS320F28023
32-bit Real Time Microcontroller, 50 MHz, 32K Flash, 6K RAM, 4 HRPWM
TMS320F28022
32-bit Real Time Microcontroller, 50 MHz, 16K Flash, 6K RAM, 4 HRPWM
TMS320F28021
32-bit Real Time Microcontroller, 40 MHz, 32K Flash, 5K RAM
TMS320F28020
32-bit Real Time Microcontroller, 40 MHz, 16K Flash, 3K RAM
TMS320F280200
32-bit Real Time Microcontroller, 40 MHz, 8K Flash, 3K RAM
(1)
This device is present on the LAUNCHXL-F28027.
5
LAUNCHXL-F28027 Hardware
5.1
Device Pin Out
Table 1 lists the pin out and pin mux options for the C2000 LaunchPad.
Table 1. C2000 LaunchPad Pin Out and Pin Mux Options
Mux Value
3
2
Mux Value
1
0
J1 Pin
J5 Pin
0
+3.3V
1
1
+5V
ADCINA6
2
2
GND
TZ2
SDAA
SCIRXDA
GPIO28
3
3
ADCINA7
TZ3
SCLA
SCITXDA
GPIO29
4
4
ADCINA3
Rsvd
Rsvd
COMP2OUT
GPIO34
5
5
ADCINA1
ADCINA4
6
6
ADCINA0
GPIO18
7
7
ADCINB1
ADCINA2
8
8
ADCINB3
ADCINB2
9
9
ADCINB7
ADCINB4
10
10
NC
J6 Pin
J2 Pin
SCITXDA
3
2
SPICLK
1
0
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0
1
2
3
1
2
3
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Table 1. C2000 LaunchPad Pin Out and Pin Mux Options (continued)
Mux Value
3
2
Mux Value
1
0
J1 Pin
J5 Pin
0
1
2
3
Rsvd
Rsvd
EPWM1A
GPIO0
1
1
GND
COMP1OUT
Rsvd
EPWM1B
GPIO1
2
2
GPIO19
SPISTEA
SCIRXDA
ECAP1
Rsvd
Rsvd
EPWM2A
GPIO2
3
3
GPIO12
TZ1
SCITXDA
Rsvd
COMP2OUT
Rsvd
EPWM2B
GPIO3
4
4
NC
Rsvd
Rsvd
EPWM3A
GPIO4
5
5
RESET#
ECAP1
Rsvd
EPWM3B
GPIO5
6
6
GPIO16/32
SPISIMOA/
SDAA
Rsvd/
EPWMSYNCI
TZ2/
ADCSOCA
TZ2/
ADCSOCA
Rsvd/
EPWMSYNCI
SPISIMOA/
SDAA
GPIO16/32
7
7
GPIO17/33
SPISOMIA/
SCLA
Rsvd/
EPWMSYNCO
TZ3/
ADCSOCB
TZ3/
ADCSOCB
Rsvd/
EPWMSYNCO
SPISOMIA/
SCLA
GPIO17/33
8
8
GPIO6
EPWM4A
EPWMSYNCI
EPWMSYNCO
EPWM4B
SCIRXDA
Rsvd
NC
9
9
GPIO7
NC
10
10
ADCINB6
On headers J2 and J6, there are multiple instances of the same pins being connected. By default, GPIO16
and GPIO32 are shorted together and connected to both J2.6 and J6.7. Similarly, GPIO17 and GPIO33
are shorted together and connected to both J2.7 and J6.8. This configuration provides extra options for
signal routing based on application needs. The configuration is also reversible as top-layer cut-traces, are
buried in between two exposed pads, alternately known as Net-Ties. Net-Ties JP4 - JP11 are located
directly adjacent to header J6 and marked clearly on the silkscreen. These Net-Ties are visible on the
right-hand side of Figure 3.
To select an exclusive connection to one header location, two cuts will need to be made - cut the Net-Tie
that shorts the other GPIO to the desired header location, then cut the desired GPIO from the other
header location. For example - to exclusively connect GPIO16 on J2.6, cut JP5 to isolate GPIO32 from
J2.6 and then cut JP8 to isolate GPIO16 from J6.7. If GPIO16 ever needs to be connected to J6.2 in the
future, simply place a 0 Ω resistor on the exposed pads of JP4.
5.2
Schematics
Figure 2 and Figure 3 show the C2000 LaunchPad schematics sheets.
6
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2
3
4
5
6
1 JP3
2
USBVCC
AGND
12k
R24
FTDI_DATA
2.2k
P$2
OSCI
P$3
OSCO
Q3
12M
P$13
C18
36p
36p
TH
C17
TEST
TH
R29
EECS
EECLK
EEDATA
AGND
R31
P$63
P$62
P$61
P$10
93
DO 1
GND
10k
CS
FTDI_DATA 3 DI
AGND
D
FTDI_CS
FTDI_CS
FTDI_CLK
FTDI_DATA
VCC
EEPROM
Array
0.1u
CLK
2
C16
4
5
ADBUS0
ADBUS1
ADBUS2
ADBUS3
ADBUS4
ADBUS5
ADBUS6
ADBUS7
P$16
P$17
P$18
P$19
P$21
P$22
P$23
P$24
ACBUS0
ACBUS1
ACBUS2
ACBUS3
ACBUS4
ACBUS5
ACBUS6
ACBUS7
P$26
P$27
P$28
P$29
P$30
P$32
P$33
P$34
BDBUS0
BDBUS1
BDBUS2
BDBUS3
BDBUS4
BDBUS5
BDBUS6
BDBUS7
P$38
P$39
P$40
P$41
P$43
P$44
P$45
P$46
BCBUS0
BCBUS1
BCBUS2
BCBUS3
BCBUS4
BCBUS5
BCBUS6
BCBUS7
P$48
P$52
P$53
P$54
P$55
P$57
P$58
P$59
PWREN#
SUSPEND#
P$60
P$36
1
2
3
4
5
6
7
8
VCC1
GND1
INA
INB
INC
IND
NC
GND1
FTDI_3V3
16
15
14
13
12
11
10
9
VCC2
GND2
OUTA
OUTB
INC
NC2
EN2
GND2
B
TCK
TDI
TMS
SCI_RX
GND
U7
VCC1
GND1
INA
INB
OUTC
NC1
EN1
GND1
1
2
3
4
5
6
7
8
C
TDO
SCI_TX
JTAG_TRST
ISO7231
R25
D7
R27
330
VCC2
GND2
OUTA
OUTB
OUTC
OUTD
EN
GND2
ISO7240
FTDI_3V3
16
15
14
13
12
11
10
9
R23
1k
+3V3
AGND
AGND
R21
FTDI_3V3
0
U5
U6
AGND
VCCIO1
VCCIO2
VCCIO3
VCCIO4
0
AGND
AGND
1k
0
R20
4.7u 4.7u
R26
REF
RESET#
C10 C11
330
USBDP
P$6
P$14
R22
6
U8
FTDI_CLK
P$12
P$37
P$64
USBDM
P$8
FTDI_3V3
0
R19
D8
PWREN#
SUSPEND#
0
R28
GND
D
0
R30
0
R32
0
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
P$7
D+
AGND
D-
0.1u 0.1u 0.1u 3.3u
AGND
C
VREGIN
VREGOUT
C12 C13 C14 C15
AGND
AGND
P$49
FTDI_3V3
P$1
P$5
P$11
P$15
P$25
P$35
P$47
P$51
P$9
P$4
FTDI_3V3 P$50
VPLL
VPHY
DD+
P$20
P$31
P$42
P$56
AGND
AGND
FTDI_1V8
USBVCC
500mA
1
2
3
4
5
L1
L2
VCORE1
VCORE2
VCORE3
F1
B
AGND
AGND
AGND
D6
0.1u
0
R18
+3V3
100u
1u
A
R16
FTDI_3V3
1 JP1
2
C9
C8
TLV1117-33
1 JP2
2
1
C7
FTDI_3V3
2
4
AGND
A
VOUT1
VOUT2
820
VIN
R17
ADJ/GND
U4
USBVCC3
+5V
1
FT2232H
Emulator - XDS100v2
E
AGND
E
C2000_LaunchPad.sch
1.0
Figure 2. C2000 LaunchPad Schematic—Sheet 1 of 2
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LAUNCHXL-F28027 Hardware
3
4
+3V3
+3V3
820
R5
R4
ON
2 1
3
JTAG_TRST
219-03
2
SN74LVC2G07
2A
6
2Y
4
J1
+3V3
2
1
JP9
JP10
330
C
GPIO33
GPIO6
GPIO7
ADCINB6
D
1
2
3
GPIO33
GND
J3
SN74LVC2G07
GND
S2
RESET#
FSMJSMA
S3
Piccolo F2802x
GPIO12
FSMJSMA
10k
GND
ADCINA7
ADCINA3
ADCINA1
ADCINA0
ADCINB1
ADCINB3
ADCINB7
J5
E
R11
1
2
3
4
5
6
7
8
9
10
RESET#
SPI_MISO
GPIO17
GND
+3V3
1
ADCINA6 2
SCI_RXGPIO28 3
SCI_TX GPIO29 4
GPIO34 5
ADCINA4 6
GPIO18 7
SPI_CLK
ADCINA2 8
ADCINB2 9
ADCINB4 10
GPIO19
GPIO12
J6 J2
2
1
SPI_MISO
GPIO17
1
2
3
4
5
6
7
8
9
10
+3V3
1Y
2
1
1A
GNDGND GND GND
1
2
3
4
5
6
7
8
9
10
2
1
VCC
GPIO3 3
330
R15
5
R14
+3V3
+3V3
330
330
R13
+3V3
GPIO2 1
C6
JP8
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO32
D5
2Y
4
1 JP4
2
1 JP5
2
1 JP6
2
GPIO0
GPIO1
GPIO16
GPIO17
GPIO19
C5
SPI_MOSI
GPIO16
GPIO32
2.2u
2.2u 2.2u SPI_MOSI
GPIO16
D3
6
GND
1Y
C3
C20
GPIO32
+5V
+3V3
E
2A
GND
1A
GPIO1 3
U3
2
GPIO0 1
D
D4
VCC
U2
D2
5
R12
+3V3
+3V3
GND
36p
GND
TMS320F28027PT
GND GND
B
1 JP7
2
GPIO7
GPIO6
GPIO5
GPIO4
GPIO3
GPIO2
GPIO33
Q2
GPIO28
GPIO12
R7
GPIO28/SCIRXDA/SDAA/TZ2# 48
GPIO12/TZ1#/SCITXDA 47
46
X2
45
X1
44
VSS2
43
VDD2
GPIO7/EPWM4B/SCIRXDA 42
GPIO6/EPWM4A/EPWMSYNCI/EPWMSYNCO41
GPIO5/EPWM3B/ECAP1 40
GPIO4/EPWM3A 39
GPIO3/EPWM2B/COMP2OUT 38
GPIO2/EPWM2A 37
GPIO33/SCLA/EPWMSYNCO/ADCSOCBO#36
35
VDDIO
VREGENZ# 34
33
VSS1
32
VDD1
GPIO32/SDAA/EPWMSYNCI/ADCSOCAO#31
30
TEST
GPIO0/EPWM1A 29
GPIO1/EPWM1B/COMP1OUT 28
GPIO16/SPISIMOA/TZ2# 27
GPIO17/SPISOMIA/TZ3# 26
GPIO19/XCLKIN/SPISTEA#/SCIRXDA/ECAP125
36p
+3V3
GND GND GND
GPIO29/SCITXDA/SCLA/TX3#
TRST#
XRS#
ADCINA6/AIO6
ADCINA4/COMP2A/AIO4
ADCINA7
ADCINA3
ADCINA1
ADCINA2/COMP1A/AIO2
ADCINA0/VREFHI
VDDA
VSSA/VREFLO
ADCINB1
ADCINB2/COMP1B/AIO10
ADCINB3
ADCINB4/COMP2B/AIO12
ADCINB6/AIO14
ADCINB7
GPIO34/COMP2OUT
TDI
TMS
TDO
TCK
GPIO18/SPICLKA/SCITXDA/XCLKOUT
C4
2.2k
2.2k
R10
R8
2.2k
R9
1
1M Q1
P$4
P$2
S4
P$1204-1
A
6
5
4
JP11
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
ADCINB1
ADCINB2
ADCINB3
C21 C19 ADCINB4
ADCINB6
2.2u 2.2u ADCINB7
GPIO34
TDI
TMS
TDO
TCK
GPIO18
GPIO28
GPIO29
U1
S1
6
L4
B
1
2
3
P$3
R1
820
D1
+3V3
R6
L3
GND
GPIO29
TRST
RESET#
ADCINA6
ADCINA4
ADCINA7
ADCINA3
ADCINA1
ADCINA2
ADCINA0
GPIO34
TDO
TRST
SCI_RX
SCI_TX
ON
2.2k
A
5
820
2
+3V3
1
www.ti.com
C2000_LaunchPad.sch
GND
GND
1.0
GND
Figure 3. C2000 LaunchPad Schematic—Sheet 2 of 2
8
LAUNCHXL-F28027 C2000 Piccolo LaunchPad Experimenter Kit
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LAUNCHXL-F28027 Hardware
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5.3
PCB Layout
Figure 4, Figure 5, and Figure 6 show the LAUNCHXL-F28027 PCB layout.
Figure 4. LAUNCHXL-F28027 PCB Layout—Top Layer
Figure 5. LAUNCHXL-F28027 PCB Layout—Bottom Layer
Figure 6. LAUNCHXL-F28027 PCB Layout—Silkscreen Image
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9
LAUNCHXL-F28027 Hardware
5.4
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Bill of Materials (BOM)
Table 2 lists the LAUNCHXL-F28027 bill of materials.
Table 2. LAUNCHXL-F28027 Bill of Materials
Quantity
per
Board
Reference
10
Description
R12, R13, R14, R15, R26, R27
6
RES 330 Ω 1/10W 5% 0402 SMD
R1, R4, R5, R17
4
RES 820 Ω 1/10W 5% 0402 SMD
R22, R23
2
RES 1.0K Ω 1/10W 5% 0402 SMD
R6, R8, R9, R10, R31
5
RES 2.2K Ω 1/10W 5% 0402 SMD
R11, R29
2
RES 10K Ω 1/10W 5% 0402 SMD
R24
1
RES 12K Ω 1/16W .5% 0402 SMD
R7
1
RES 1.0M Ω 1/10W 5% 0402 SMD
R16, R18, R19, R20, R21, R25, R28, R30,
R32
9
RES 0.0 Ω 1/4W 1206 SMD
L1, L2
2
FERRITE BEAD 600 Ω 0402
L3
1
FERRITE BEAD 220 Ω 0402
L4
1
FERRITE CHIP 60 Ω 1.5A 0402
C9, C12, C13, C14, C16
5
CAP .10 µF 16 V CERAMIC Y5V 0402
C7
1
CAP CER 1.0 µF 6.3 V X5R 20% 0402
C5, C6, C19, C20, C21
5
CAP CER 2.2 µF 6.3 V 20% X5R 0402
C15
1
CAP CER 3.3 µF 4.0 V X5R 0402
C10, C11
2
CAP CER 4.7 µF 4 V X5R 0402
C3, C4
2
CAP CER 36PF 50 V C0G 0402
C17, C18
2
CAP CER 36PF 50 V C0G 0402
C8
1
CAP TANTALUM 100 µF 6.3 V 10% SMD
F1
1
PTC RESETTABLE .50A 15 V 1812
S1
1
SWITCH DIP 3POS TOP SLIDE SMT
S4
1
SWITCH DIP DPST 1POS SMT
S2, S3
2
SW TACT SPST-NO MOM 160GF SMD
Q1, Q2
1
Crystal
Q3
1
CRYSTAL 12.0000 MHZ 18PF SMD
D6
1
LED RED HIGH BRIGHT ESS SMD
D1
1
LED GREEN HIGH BRIGHT ESS SMD
D2, D3, D4, D5, D7, D8
6
LED BLUE HIGH BRIGHT ESS SMD
JP1, JP2, JP3
3
BERGSTIK II .100" SR STRAIGHT
J1 and J5, J2 and J6
2
CONN HEADER .100 DUAL STR 20POS
J3
1
CONN HEADER .100 SNGL STR 3POS
CON1
1
CONN RECEPT MINI-USB TYPE B SMT
U4
1
IC LDO REG 800MA 3.3 V SOT223-4
U2, U3
2
IC BUFF/DVR DL NON-INV SOT236
U5
1
ISOLAT DGTL 2.5 KVRMS 4CH 16-SOIC
U7
1
ISOLAT DGTL 3 KVRMS 3CH 16-SOIC
U6
1
IC USB HS DUAL UART and FIFO 64-QFN
U8
1
IC EEPROM 2KBIT 3 MHZ SOT23-6
U1
1
IC MCU 32 BIT 64KB FLASH 48LQFP
LAUNCHXL-F28027 C2000 Piccolo LaunchPad Experimenter Kit
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Suggested Reading
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6
Suggested Reading
The following documents describe the C2000 devices. Copies of these documents are available on the
Internet at http://www.ti.com/c2000 and www.ti.com/c2000-launchpad, or click on the links below:
• TMS320F28027/28026/28023/28022/28021/28020/280200 Piccolo Microcontrollers Data Manual
(SPRS523)
• TMS320F28027/28026/28023/28022/28021/28020/2802x0 Piccolo MCU Silicon Errata (SPRZ292)
• TMS320x2802x, 2803x Piccolo Analog-to-Digital Converter (ADC) and Comparator Reference Guide
(SPRUGE5)
• TMS320x2802x, 2803x Piccolo High Resolution Pulse Width Modulator (HRPWM) Reference Guide
(SPRUGE8)
• TMS320x2802x, 2803x Piccolo Inter-Integrated Circuit (I2C) Reference Guide (SPRUFZ9)
• TMS320x2802x, 2803x Piccolo Enhanced Pulse Width Modulator (ePWM) Module Reference Guide
(SPRUGE9)
• TMS320x2802x/TMS320F2802xx Piccolo System Control and Interrupts Reference Guide (SPRUFN3)
• TMS320x2802x Piccolo Boot ROM Reference Guide (SPRUFN6)
• TMS320x2802x, 2803x Piccolo Serial Communications Interface (SCI) Reference Guide (SPRUGH1)
• TMS320x2802x, 2803x Piccolo Enhanced Capture (eCAP) Module Reference Guide (SPRUFZ8)
• TMS320C28x Instruction Set Simulator Technical Overview (SPRU608)
• TMS320C28x Optimizing C/C++ Compiler v6.1 User's Guide (SPRU514)
• TMS320C28x Assembly Language Tools v6.1 User's Guide (SPRU513)
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Frequently Asked Questions (FAQ)
7
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Frequently Asked Questions (FAQ)
1. Can other programming and debug tools (such as an XDS510 debug probe) be used with the C2000
LaunchPad?
While a user could potentially connect an external debug probe to the F28027 device present on the
LaunchPad, it would require some rework of the board. It is recommended that users who want to use
an external debug probe purchase a controlCard and docking station that includes an external JTAG
connector.
2. What versions of Code Composer Studio can be used to develop software for the C2000 LaunchPad?
It is highly recommend that novice users develop applications with Code Composer Studio v5. The
drivers, examples, and other associated software are tailored to make the user experience as smooth
as possible in Code Composer Studio v5. However, there is nothing to prevent a user from creating
projects in Code Composer Studio v3 or v4 with the source files available in controlSUITE. Keep in
mind that all the projects for the C2000 LaunchPad are Code Composer Studio v5 projects and will not
import into Code Composer Studio v3 or v4. Only expert users should attempt to use the LaunchPad
with Code Composer Studio v3 or v4.
3. Why can’t I connect to the LaunchPad in Code Composer Studio?
There are a number of things that could cause this and they all have an easy fix.
• Is S1 switch 3 in the down position?
This is the TRST pin that enables and disables JTAG functionality on the chip. This switch must be
in the up position for the debug probe to be able to connect.
• Are both power LEDs lit?
The board has two power domains because of the isolated JTAG interface. For low-voltage
application development, JTAG isolation is not needed and the power domains can be combined to
allow for convenience (that is, the board can be powered completely through the USB). Ensure that
jumpers are placed on the posts of JP1, JP2, and JP3.
• Are drivers correctly installed for the XDS100v2 present on the LaunchPad?
Right click on My Computer and select properties. Navigate to the Hardware tab in the dialog box
and open the device manager. Scroll to the bottom of the list and expand the USB Serial Bus
controllers item. Are there two entries for TI XDS100 Channel A/B? If not, try unplugging and
replugging in the board. Does Windows give you any messages in the system tray? In Device
Manger, do either of the entries have a yellow exclamation mark over their icon? If so, try
reinstalling the drivers.
4. Why is the serial connection not working?
There are a few things that could cause this and they are easy to fix.
• Is S4 in the up position?
S4 connects the F28027 device serial peripheral to the XDS100 serial port, so this switch must be
turned on (up) for serial connectivity to function.
• Are you using the correct COM port?
Right click on My Computer and select properties. Navigate to the Hardware tab in the dialog box
and open the device manager. Scroll to Ports (COM & LPT) and expand this entry. Is there a USB
Serial Port listed? If so, read the COM number to the right of the entry; this is the COM number you
should be using.
• Are you using the correct baud rate?
Most, if not all, of the examples are configured for a baud rate of 115200 when the CPU is running
at 60 MHz. If you have changed the PLL settings or written your own application you may have to
recalculate the baud rate for your specific application. For information on how to do this, see the
TMS320x2802x, 2803x Piccolo Serial Communications Interface (SCI) Reference Guide
(SPRUGH1).
8
Trademarks
C2000, Piccolo, LaunchPad, Code Composer Studio, controlSUITE are trademarks of Texas Instruments.
Windows is a registered trademark of Microsoft Corporation in the United States and/or other countries.
All other trademarks are the property of their respective owners.
12
LAUNCHXL-F28027 C2000 Piccolo LaunchPad Experimenter Kit
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Revision History
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Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from B Revision (July 2018) to C Revision ..................................................................................................... Page
•
Update was made in Section 3.2. ....................................................................................................... 3
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Revision History
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