NDK and EDMA3 confict on DM6437

Omin Chou

Hi all,

My code base are NDK-2_0_0 and edma3_lld_1_05_00.

The test is create one NDK task and EDMA task in simultaneous or respective state.

1. Only create NDK task ---> The Ethernet works fine.

2. Create NDK task and use DHCP to request an IP address, then create EDMA task right way, but NDK task does not have response, however EDMA task still works.

I also tried following tests to clarify this issue.

1. Update edma package to edma3_lld_01_11_01_04 and edma3_lld_01_11_03_01. But the issue still existed.

2. Raise EMAC priority than EDMA. But the issue still existed.

3. Change interrupt vector of Ethernet driver from default to another to avoid overlap with EDMA used. But the issue still existed.

Could TI please shed more light on this issue?

Thanks in advance.

B.R.

over 9 years ago

0 Sivaraj Kuppuraj over 9 years ago

TI__Mastermind 35645 points

Hi,

May be, you can upgrade to the latest NDK from this website:

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/ndk/ndk_2_20_03_24/index_FDS.html

Please note that the above NDK only contains the core libraries. There are no DM6437 driver libraries or examples.

You will probably be OK using the drivers and examples that you have already from NDK 1.92.x, but if you wish to get use the latest drivers and examples then you would need to grab those from NDK 2.00. You can find that here:

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/ndk/2_00_00/index_FDS.html

Thanks & regards,

Sivaraj K

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0 Titusrathinaraj Stalin over 9 years ago

TI__Guru** 116100 points

2. Create NDK task and use DHCP to request an IP address, then create EDMA task right way, but NDK task does not have response, however EDMA task still works.

Please make sure that you have enough stack and allocated memory for both tasks.

Are you getting any error and which line of NDK code is not executing correctly ?
You can set break point in NDK task code and see which line is causing the problem.

0 Omin Chou over 9 years ago in reply to Titusrathinaraj Stalin

Genius 3555 points

Hi Sivaraj K, Titus S,

Thanks a lot for your reply.

Aim at your recommendations I have some queries as below.

1. Migrate NDK from 2.00 to 2.20

As I know NDK 2.20 basing on Eclipse IDE (CCS4), but I want to keep to use CCS3.3 as my development environment. If migrate to 2.20 can resolve this issue, please let me know what should be noticed when my IDE tool is still under CCS3.3.

2. VPFE, NDK and EDMA working behavior

The hang issue must be occurred when I added EDMA copy function into VPFE FVID_exchange function. If I created EDMA task and VPFE FVID_exchange respectively, the hang issue did not exist.

3. Attached psp_bios_vpfe_st_on_the_fly_sample.c and nvs920.tcf

Please give me some advices in my code and tcf setting if I mistake something.

https://dl.dropboxusercontent.com/u/12447225/DM6437/psp_bios_vpfe_st_on_the_fly_sample.c

https://dl.dropboxusercontent.com/u/12447225/DM6437/nvs920.tcf

Thanks in advance.

B.R.

Processors

Processors forum

NDK and EDMA3 confict on DM6437