CCS/AM3352: UDP send error

user5954100

Part Number: AM3352

Tool/software: Code Composer Studio

I create a socket to send ,when I send more than 900 data ,such as 1000,1400,it successful with no failer,

but when I send less than 850 datas,after a period of successful sending, it fails to send, returns - 1, and the error code is 55.

my PDK version is pdk_am335x_1_0_13 and NDK version is ndk_3_40_01_01.

over 6 years ago

0 Ming Wei over 6 years ago

TI__Guru 56715 points

Hi,

Would you mind use the latest Processor SDK RTOS for AM335x (6.1.0) to redo your experiment? There many changes made between pdk_am335x_1_0_13 and pdk_am335x_1_0_16; NDK version ndk_3_40_01_01 and ndk_3_61_01_01. You can download it from:

http://www.ti.com/tool/PROCESSOR-SDK-AM335X

Ming

0 user5954100 over 6 years ago in reply to Ming Wei

Expert 1690 points

We have been using pdk_am335x_1_0_13 for a long time,

and have carried out many driver development and application migration.

It will take a lot of energy and time to change the version.

I think the best way is to solve the problem in the current version。

0 Ming Wei over 6 years ago in reply to user5954100

TI__Guru 56715 points

Hi,

There several versions of the NDK between ndk_3_61_01_01 and ndk_3_40_01_01. I looked into the NDK release note. They have fixed quite a few memory allocation/free issues. The error code 55 is the NDK_ENOBUFS which is raise when the PBM_alloc() returns NULL. The problem is either with the memory leak or mis-matching between PBM_alloc and PBM_free. I will look into the code changes of NDK and see whether I can pin point the fixes may work for you. Meanwhile, can you please make sure there is no memory leak or mis-matching between your data buffer allocation/release?

Ming

0 user5954100 over 6 years ago in reply to Ming Wei

Expert 1690 points

I have tried to replace ndk_3_40_01_01 to ndk_3_61_01_01 in my project,but it is still failed the same error.

you say you will try to pin point the fixes,is there any update?

0 Ming Wei over 6 years ago in reply to user5954100

TI__Guru 56715 points

Hi,

If you have already using the NDK ndk_3_61_01_01 in your project and it still have the same error, then the NDK is not the root cause for the problem. I will look into the NIMU for other possible cause.

Meanwhile, can you check possible memory leak or un-freed data buffer in your program.

Ming

0 user5954100 over 6 years ago in reply to Ming Wei

Expert 1690 points

if I send 1400 bites data ,it is no error ,but if I send 10 bits data,it will have the error.

so I think in my program is impossible memory leak or un-freed data buffer.

0 user5954100 over 6 years ago in reply to user5954100

Expert 1690 points

is there any update today

0 Ming Wei over 6 years ago in reply to user5954100

TI__Guru 56715 points

Hi,

Do you have the same issue with TCP packet or just for UDP?

Ming

0 user5954100 over 6 years ago in reply to Ming Wei

Expert 1690 points

I don't test witch TCP packet,

does this issue can be resolved?

0 Ming Wei over 6 years ago in reply to user5954100

TI__Guru 56715 points

Hi,

I looked into the NDK/NIMU code. I did not find any obvious mis-matching. There is one more thing you can try:

Increase the heap size and task stack size in the CFG file:

BIOS.heapSize = 0x155000;

Task.defaultStackSize = 8192;
Task.idleTaskStackSize = 8192;

Ming

0 user5954100 over 6 years ago in reply to Ming Wei

Expert 1690 points

I have tried to increase the stack size in cfg file,there is no error,thank you.

Processors

Processors forum

CCS/AM3352: UDP send error