ECE497 Notes on DSP via c6run

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Here are some notes on how to get c6run going on the BeagleBoard. This has been modified to add detail (4/27/2011) for the ECE4356 class.


from here

This, Media:C6run_m_yoder.tgz, contains the following:

  1. /lib/modules from target FS
  2. uImage itself
  3. C6Run package prebuilt for the above
  4. C6Run target software
    1. Kernel modules for TI components
    2. and
    3. pre-compiled test and and example applications

from elsewhere

  • DSP toolchain - point them to same one using
  • Angstrom distribution ARM compiler
  • DSP/BIOS 5.41 - point them to same one using

Instructions for Host Setup and Build

The download instructions have been modified. It is now assumed that you have already downloaded the following 4 files and placed them into your ~/Download directory (note ~ is /home/beagle below). Since some of the download times are very slow for these, they have been made available on the EE4356 web site.

  • C6run_m_yoder.tgz
  • ti_cgt_c6000_7.0.4_setup_linux_x86.bin
  • angstrom-2010.4-test-20100422-i686-linux-armv7a-linux-gnueabi-toolchain-qte-4.6.2.tar.bz2
  • bios_setuplinux_5_41_09_34.bin
  • (Already Done) Download the TI C6000 v7.0.4 code generation tools for Linux from here
  • Install the codegen tools to ~/toolchains/TI_CGT_C6000_7.04 (you implicitly accept a EULA when doing this)
    host$ mkdir ~/toolchains
    host$ cd ~/Downloads
    host$ chmod +x ti_cgt_c6000_7.0.4_setup_linux_x86.bin
    host$ ls -l ! Look for an x by ti_... to verify it is executable
    host$ ./ti_cgt_c6000_7.0.4_setup_linux_x86.bin --installto ~/toolchains --mode silent
  • (Already Done) Download the angstrom ARM toolchain from here.
  • Install the ARM toolchain
    host$ tar -C ~/toolchains -xjf angstrom-2010.4-test-20100422-i686-linux-armv7a-linux-gnueabi-toolchain-qte-4.6.2.tar.bz2

The ARM toolchain will be in ~/toolchains/usr/local/angstrom/arm/

  • Download the DSP/Bios package from here.
  • Install the DSP/Bios package (you implicitly accept a EULA when doing this)
    host$ chmod +x bios_setuplinux_5_41_09_34.bin
    host$ ./bios_setuplinux_5_41_09_34.bin --mode silent --prefix ~/toolchains  
  • Install the pre-built C6Run package. To do this you must first untar the c6run_m_yoder.tgz file
    host$ tar -xvfz c6run_m_yoder.tgz
    host$ cd c6run_m_yoder
    host$ tar -C ~/toolchains -xzf c6run_0_95_02_02_beagleboard.tar.gz
  • Edit the c6run environment settings to correctly point to the location of the components on your host PC (replace ${HOME} with the absolute path)
    host$ cd ~/toolchains/c6run_0_95_02_02_beagleboard
    host$ vi
    /* the following command in vi would make the substitution on all cases */
  • We now want to set up our environment variables. But first we will check to see what they are currently.
    host$ printenv ! Prints all the environment variables, note too many to see
    host$ printenv | more  ! Prints out a page at a time, space to advance
    host$ printenv | grep ARM ! Only prints lines that have “ARM” in them
    host$ printenv | grep C6 ! Only prints lines that have “C6” in them
  • The previous, unless you ran the command previously, should show no environment variables with ARM or C6 in them
  • Source the environment variables and rerun the checks
    host$ source
    host$ printenv | grep ARM ! Only prints lines that have “ARM” in them
    host$ printenv | grep C6 ! Only prints lines that have “C6” in them

A this point the environment and components are all setup to build the examples and test cases included in the the C6Run package. All the makefiles for the examples and test cases rely on FOUR environment variables: ARM_TOOLCHAIN_PREFIX, ARM_TOOLCHAIN_PATH, CFLAGS, and C6RUN_TOOLCHAIN_PATH. The compilation scripts (c6runlib and c6runapp scripts) rely on these and the other variables from the file.

It is suggested that the test and example makefiles be used as a template for any builds done for your own code.

Target Preparation

  1. Setup the beagleboard to boot using the included kernel image (uImage binary file). This should just require replacing the uImage file on your SD card with the provided one (rename the file to be just 'uImage').
  2. Copy the the contents of the provided /lib/modules to the target's /lib/modules path. I found I didn't need to do this.
  3. Copy the contents of c6run_target.tar.gz to the target file system. I place it in /opt. It contains the kernel modules form the TI components and the script which should be used to install them. The pre-built examples and test cases are also included in this archive
  4. Before running any c6run based application, make sure you run the script to load the needed kernel modules.