Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

VIDYA J wrote:

For my project i want to do inter process communication on omapl138. Please reply for my below doubts
1. Is there Linux on board of MITYDSPL138-FX 225 RC, or is it something which i should do ?

The SOMs don't come with Linux pre-installed, unless bought with a devkit. They have a bootloader installed only. If you want to boot from NAND this is a good guide for updating u-boot and flashing the kernel and example filesystem. https://support.criticallink.com/redmine/projects/arm9-platforms/wiki/Updating_devkit_to_latest_MDK

Note the SOM can also be booted from sd card. See Linux_Root_File_System for different ways the SOM can be booted.

2. I tried running code to print hello world, its getting executed, but when i tried uart-echo code from the examples provided by mitydsp its not getting debugged. When i contacted with TI, they responded like gel file some error is there. Can i get the proper gel file.

Are you running barebones code? Can you link to the guide your following?

3. I am able to see only the L1D memory, is there any way to see the flash memory using ccs.

The NOR flash is attached over SPI so there is no direct memory map for it. The NAND memory is attached over the EMIFA parrallel bus and there is no direct memory map either. I'm not familiar enough with using CCS to program this processor barebones, I usually use Linux. But I can ask around here if thats something your trying to do.

4. can i access both ARM and DSP through JTAG without a linux environment.

Yes

Note we do have a StarterWare barebones guide written a few years back

I used UART_echo code from OMAPL138_StarterWare_1_10_03_03 folder. For coding ARM i read like i need to add gel file. Can you provide me the corresponding gel file. Without gel file when i tried the code was not getting debugged, but while building there was no error

VIDYA J wrote:

I used UART_echo code from OMAPL138_StarterWare_1_10_03_03 folder. For coding ARM i read like i need to add gel file. Can you provide me the corresponding gel file. Without gel file when i tried the code was not getting debugged, but while building there was no error

The gel file is not used for building the code. It is a list of instructions to the debugger to setup the CPU and memory interface.

Attached the two gel files from the 2014 MDK.

But in CCS they are asking initialization file for the processor.

VIDYA J wrote:

But in CCS they are asking initialization file for the processor.

When your building?