Running inter processor communication from within Linux

Hi Usman,

SYSlink is available for OMAPL138 to establish a communication between ARM and DSP.

Please have a look at the below TI WIKI links.

---

Thanks for your reply. I have installed syslink onto my Linux host and onto the board. How do I use it to send information to the DSP from the ARM while booted into Linux? I am using syslink 2.2.1.01.05.

So I went ahead and extracted the syslink examples like the guide shows. But the examples wouldn't install on their own like in the guide, so I opened the products.mak file for the hello world example in this location ~/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld$

and I setup the products.mak file as such:

DEPOT = /home/logic

BIOS_INSTALL_DIR = $(DEPOT)/ti/bios_6_33_02_31
CGT_ARM_PREFIX = $(DEPOT)/CodeSourcery/Sourcery_G++_Lite/bin/arm-none-linux-gnueabi-
IPC_INSTALL_DIR = $(DEPOT)/ti/ipc_1_25_03_15
SYSLINK_INSTALL_DIR = $(DEPOT)/ti/syslink_2_21_01_05
CGT_C674_ELF_INSTALL_DIR= $(DEPOT)/ti/TI_CGT_C6000_7.3.3
XDC_INSTALL_DIR = $(DEPOT)/ti/xdctools_3_23_01_43

Now when I run the "make install" command I get the following error:

logic@logic-desktop:~/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld$ make install
#
# Making install ...
install run.sh /home/logic/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld/install/ex01_helloworld/debug
cp /home/logic/ti/syslink_2_21_01_05/packages/ti/syslink/bin/OMAPL1XX/samples/slaveloader_debug /home/logic/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld/install/ex01_helloworld/debug/slaveloader
install run.sh /home/logic/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld/install/ex01_helloworld/release
cp /home/logic/ti/syslink_2_21_01_05/packages/ti/syslink/bin/OMAPL1XX/samples/slaveloader_release /home/logic/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld/install/ex01_helloworld/release/slaveloader
make -C host EXEC_DIR=/home/logic/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld/install/ex01_helloworld install
make[1]: Entering directory `/home/logic/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld/host'
#
# Making install ...
cp bin/debug/app_host /home/logic/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld/install/ex01_helloworld/debug
cp: cannot stat `bin/debug/app_host': No such file or directory
make[1]: *** [install] Error 1
make[1]: Leaving directory `/home/logic/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld/host'
make: *** [install] Error 2
logic@logic-desktop:~/ti/syslink_2_21_01_05/examples/archive/OMAPL138_linux_elf/ex01_helloworld$ 

How do I fix this, along with my previous question?

Hi Usman,

In the below link, it says, sample examples are given in the syslink . To build those samples and install, they used commands like "make samples" and host $ make install or host $ make install EXEC_DIR=<your ARMv5 file system location>

Please try those first which may give some idea.

---

Yes, I am already passed this step. The "make samples" or "make examples" command just puts a bunch of zip files into an example folder. In my previous post I extracted the first folder and came across those errors when trying to build it.

I ran the command "install syslink", I put the output folder onto the board and did insmod on the syslink.ko file successfully.

I compiled the ex01_helloworld example for both host and dsp, I put those files onto the board.

I can run the ARM executable and it provides these errors:

root@omapl138-lcdk:~/ex01_helloworld/host/bin/release# ./app_host DSP
+ ./app_host DSP
*** Loader_getSymbolAddress: Failed to get the symbol address!
        Error [0x8485f003] at Line no: 414 in file /home/logic/ti/syslink_2_21_01_05/packages/ti/syslink/utils/hlos/knl/Linux/../../../../../../ti/syslink/procMgr/common/Loader.c
*** ProcMgr_getSymbolAddress: Failed to get symbol address!
        Error [0x8485f003] at Line no: 2190 in file /home/logic/ti/syslink_2_21_01_05/packages/ti/syslink/utils/hlos/knl/Linux/../../../../../../ti/syslink/procMgr/common/ProcMgr.c
*** Platform_loadCallback: ProcMgr_getSymbolAddress failed
        Error [0xffffffff] at Line no: 1904 in file /home/logic/ti/syslink_2_21_01_05/packages/ti/syslink/utils/hlos/knl/Linux/../../../../../../ti/syslink/family/hlos/knl/omapl1xx/Platform.c
*** Ipc_control: Platform_loadCallback failed!
        Error [0xffffffff] at Line no: 828 in file /home/logic/ti/syslink_2_21_01_05/packages/ti/syslink/utils/hlos/knl/Linux/../../../../../../ti/syslink/ipc/hlos/knl/Ipc.c

But how do I run the DSP portion? 

I tried to run the run.sh file, this is the output:

root@omapl138-lcdk:~/ex01_helloworld# ./run.sh
+ ./run.sh
+ ./slaveloader startup DSP server_dsp.xe674
./run.sh: line 35: ./slaveloader: No such file or directory
+ ./app_host DSP
./run.sh: line 37: ./app_host: No such file or directory
+ ./slaveloader shutdown DSP
./run.sh: line 39: ./slaveloader: No such file or directory
root@omapl138-lcdk:~/ex01_helloworld#