Texas Instruments BIOSUSB, User Manual

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Page 18 of 21
BIOSUSB User Guide
6 Building and Running USB Application Example
This chapter discusses how to configure and run the USB host or device example
provided along with the package.
Note : Before running any USB example, user should perform system reset
or reset the target board or EVM . The system reset can be performed
through code composer studio IDE. (From CCS IDE, select menu item
Debug->”Advanced Resets”->”System Reset”). Note that CPU Reset from
CCS does only the resetting the CPU, it does not reset the entire system .
Setup Procedure for CCS4 Environment ( Building and Loading the
executable)
1. Invoke the CCS4 and perform Target configuration to configure
C6747/OMAPL137 or C6748/OMAPL138 EVM platform and use the appropriate
DSP gel file and Launch the target by selecting Debug-> “TI Launch
Debugger”, then connect to the target.
2. Select C/C++ perspective window (click on window->”open perspective”-
>C/C++) and Open the USB example’s appropriate CCS4 project file. Select
Project->”Import existing CCS/CCSE eclipse project” and provide project
directory path from “<INSTALL_DIR> \biosusb_xx_yy_zz\ packages\ ti\
biosusb\ examples\ <usbdevmsc, usbdevhid, usbhosthid >\build\ <C6747/
C6748>\ ccs4”. This will load the selected project. Set Project configuration to
Debug/Release mode.
3. Build the project in Release/Debug mode. Switch to Debug window by
selecting Debug Perspective window (click on window->”open perspective”-
>Debug) and load the executable.
4. Run the application program by pressing F8 key.
6.1 Building the USB MSC Device example for NAND OR MMC/SD OR SATA.
Below steps details how to build the USB device mass-storage application, where the
target platform acts as USB mass-storage device with NAND or MMC/SD or SATA
(only on C6748/OMAPL138 platform) as local storage media. User can choose the
storage media to be either NAND or MMCSD or SATA with this application. Make sure
all the dependent packages/components are installed and the environment variables
are created and the values are initialized correctly.
For CCS3 Environment
1. Setup the CCSV3 to configure C6747/OMAPL137 or C6748/OMAPL138 EVM
platform and use the appropriate DSP gel file and connect to the target.
2. Open the project (PJT file) for the USB device sample application from
“<INSTALL_DIR>\biosusb_xx_yy_zz\packages\ti\biosusb\examples\usbdevm
sc\build\<C6747/C6748>\ccs3\usb_dev_msc_sample.pjt”. Set Project
configuration to Release mode.
3. User can chose either NAND or MMC/SD or SATA (only C6748 paltform) as
storage media. Refer to block media user guide from BIOSPSP package for
further details with respect to media selection to expose over USB.