Changes between Version 4 and Version 5 of Boards/Beagle Board


Ignore:
Timestamp:
Apr 16, 2018, 12:13:06 AM (15 months ago)
Author:
Chris Johns
Comment:

OpenOCD debugging has moved to under OpenOCD

Legend:

Unmodified
Added
Removed
Modified
  • Boards/Beagle Board

    v4 v5  
    231231= JTAG Debugging =
    232232
    233 This section cover JTAG debugging on the various Beagle boards.
    234 
    235 == Beaglebone Black JTAG using OpenOCD ==
    236 
    237 The following details debugging on a Beaglebone Black with a [http://www.tincantools.com/JTAG/Flyswatter2.html Flyswatter2] and the [http://www.tincantools.com/JTAG/BeagleBone-Black-JTAG-Adapter-Kit.html ARM 20-pin to cTI 20-pin JTAG Adapter Board]. You need to solder the adapter board to the Beaglebone Black board.
    238 
    239 === OpenOCD ===
    240 
    241 You will also need to build a recent OpenOCD from GIT. The following is a quick example on how to do this. Please refer to the OpenOCD documentation for any further detail and specific help.
    242 
    243 {{{
    244 $ git clone git://repo.or.cz/openocd.git openocd.git
    245 $ cd openocd.git
    246 $ ./bootstrap
    247 $ cd ..
    248 $ mkdir build
    249 $ cd build
    250 $ ../openocd.git/configure --enable-maintainer-mode --enable-ftdi --disable-werror --prefix=/opt/work/openocd
    251 $ gmake -j 8
    252 $ gmake install
    253 }}}
    254 
    255 '''Notes:'''
    256  1. On FreeBSD the `--disable-werror` option needs to be used to disable warnings being treated as errors.
    257  1. You need `--enable-ftdi` option is need to support the Flyswatter2 pod.
    258 
    259 Download [https://www.tincantools.com/wiki/Flyswatter2_BeagleBone_Black_How_To#The_BeagleBone_Black_Config_File Tinncan Tool's OpenOCD configuration] file for the Beaglebone Black.
    260 
    261 With an editor create a Beaglebone Black configuration similar to:
    262 
    263 {{{
    264 $ cat bbb-fs.cfg
    265 source [find interface/ftdi/flyswatter2.cfg]
    266 source [find ti_beaglebone_with_fs2.cfg]
    267 
    268 telnet_port 4444
    269 tcl_port    6666
    270 gdb_port    3334
    271 }}}
    272 
    273 It is useful to have a file like this if you need to add special configurations, for example when using more than one Flyswatter2.
    274 
    275 OpenOCD can be started with:
    276 
    277 {{{
    278  sudo /opt/work/openocd/bin/openocd -f bbb-fs.cfg -c "reset halt"
    279 }}}
    280 
    281 The target will reset and after 6 seconds it will reset again and perform a normal start up.
    282 
    283 === U-Boot and SPL ===
    284 
    285 ** ADD U-Boot building **
    286 
    287 === GDB ===
    288 
    289 The remainder of the set up can be handled using GDB scripts. The part of the GDB scripts handles connecting to the target, which is OpenOCD in our case and restarting the Beaglebone Black.
    290 
    291 This first script fragment handle connecting to the target:
    292 
    293 {{{
    294 def target-connect-bbb
    295   target remote :3333
    296 end
    297 }}}
    298 
    299 This next fragment resets the target and initialises the memory so the RTEMS application can be downloaded:
    300 
    301 {{{
    302 def bbb-restart
    303   mon echo "] Reset..."
    304   mon reset halt
    305   mon bp 0x402f0400 4 hw
    306   mon reset run
    307   mon sleep 1000
    308   mon rbp 0x402f0400
    309   mon echo "] Loading MLO"
    310   mon load_image /somewhere/beagle/black/u-boot-spl-nodtb.bin 0x402f0400 bin
    311   mon bp 0x402f1424 4 hw
    312   mon echo "] Resume 0x402f0400"
    313   mon resume 0x402f0400
    314   mon sleep 1000
    315   mon rbp 0x402f1424
    316   mon echo "] Done ..."
    317  end
    318 end
    319 }}}
     233
     234This is covered the various JTAG debugging solutions RTEMS users are using.
     235
     236== Beaglebone Black JTAG using OpenOCD ==
     237
     238This is covered in the [wiki: Debugging/OpenOCD OpenOCD Debugger] section of the wiki in the [wiki:Debugging/OpenOCD/BeagleBoneBlack BeagleBone Black JTAG debugging] page.
    320239
    321240== Beaglebone Black JTAG using Segger J-Link ==