CCS/SW-EK-TM4C1294XL: TM4C1294XL NDK

Hi Sabina,

 Have you tried to import the TCP Echo examples for TM4C from Resource Explorer?

Yes, I did it and get tcpEcho_EK_TM4C1294X. but its SRAM 0x0000fff0. We would like to reduce SRAM by NDK library using. We downloaded NDK 2.25.1.11 and would like to use its TCP stack (it should be a little bit smaller).

I would like to compile project with NDK library. How to refer my project to NDK library?

Hi,
I'm not too clear what you meant by SRAM is 0x0000fff0. Here is the link to the NDK User Guide. www.ti.com/.../spru523j.pdf

NDK without optimization uses Jumbo Packet Buffer Manager (Jumbo PBM) Object
for managing big memory segments which are not required for our application.

Taken from TI Network Developer's Kit (NDK) v2.21 API
Reference Guide

“
A sample implementation of the Jumbo PBM is provided in the NDK OS abstraction layer (OS AL). The
customer is expected to customize this implementation according to their application needs and
system's memory constraints. The memory section sizes, block sizes, and the allocation method is all
up for customization.
“

We don’t need a Jumbo PMB, how shall we disable it?

In the past we got from TI special NDK for Concerto with minimal footprint of NDK. Now we need to do the same reducing of TCP stack for TM4C1294XL. Could we get from you the network settings for minimal footprint of NDK for TM4C1294XL

Hi,
I have forwarded your question to our TI-RTOS SME.

Hi,

We have all these definitions, but still can not reduce SRAM size: it is the same with /without NDK using:

 

We thought that  NDK using should reduce SRAM size. is it not correct?

 

As result of our changes we see :

in my code i see the changed values:

Void ti_ndk_config_tcp_init(HANDLE hCfg)
{
{
Int transmitBufSize = 512;
CfgAddEntry(hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPTXBUF,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&transmitBufSize, 0);
}
{
Int receiveBufSize = 512;
CfgAddEntry(hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPRXBUF,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&receiveBufSize, 0);
}
{
Int receiveBufLimit = 1024;
CfgAddEntry(hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPRXLIMIT,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&receiveBufLimit, 0);
}

}

 But we don't see changes in SRAM. What changes should be done for reduce SRAM memory?  Could you example please?

Thanks,

Is it possible to decrease the SRAM? now TCP takes 25% of SRAM size  (65520 bytes from 262144 bytes)

 After removing UDP we get the same SRAM size....

What optimization can we do for SRAM reducing?

Thanks,

Could you advice please?

What optimization can we do for SRAM reducing?

No, I don't see the changes.

with our changes(TCPSend/receive buffer size = 512)  => BIOS.heapSize = 20480;

without changes(TCPSend/receive buffer size = 1024):=> BIOS.heapSize = 20480;

It seems that it is clear now. I changed manually BIOS.heapSize = 18000 from 20480. and now I see the changes. so changes should be done manually . thanks for the help!

tcpEcho example doesn't use ndk .
where can we find example with NDK using?

Thanks for your help.Now it is much more clear.

After all installations I see two different socket.h files:

ti\tirtos_tivac_2_16_00_08\products\ndk_2_25_00_09\packages\ti\ndk\inc\socket.h

\ti\tirtos_tivac_2_16_00_08\products\ndk_2_25_00_09\packages\ti\ndk\inc\bsd\sys\socket.h

these files are different.

tcpEcho example uses ..bsd\sys\socket.h

My project uses ndk\inc\socket.h.

What file should be used? 

In tcpEcho  example NDK network open hook and create tcpHandler task dynamically. 

i tried to use the same mechanism in my application - here get conflict between two socket.h files.

Thanks,Sabina