LAUNCHXL-F28027 Datasheet, PDF (14/15 Pages) Texas Instruments – LAUNCHXL-F28027 C2000 Piccolo LaunchPad

Frequently Asked Questions (FAQ)
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7 Frequently Asked Questions (FAQ)
1. Can other programming and debug tools (such as an XDS510 emulator) be used with the C2000
LaunchPad?
While a user could potentially connect an external emulator 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 emulator 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 which enables and disables JTAG functionality on the chip. This switch must
be in the up position for the emulator 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).
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LAUNCHXL-F28027 C2000 Piccolo LaunchPad Experimenter Kit
Copyright © 2012, Texas Instruments Incorporated
SPRUHH2 – July 2012
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