EVM6678L HUA demo is not working.

Can you provide:

• The Host PC: OS, version
• Web broswer: IE/Firefox/chrome, version?
• Java: version?

If you change the broswer, will this work?

Regards, Eric

Hi Eric,

OS: Windows 7 service pack 1 64-bit

Browser: Chrome version 29.0.1547.76m

Java Runtime 1.7.0.40

I got the same result with Internet Explorer 8.

Behchmark test
Receive UDP: Failed, Transmit UDP: Failed
Receive TCP: Failed, Transmit TCP: Pass 

Hi Eric,

we are also facing similar problem like this one and need clarification on the below information:

It appears that NDKBenchmark.java file (part of HUA C66x project, under c:\hua\src\webpages folder) uses port 7000 to receive and 10001 to send UDP packets for the benchmark tests.  Is this correct? 

Are the .html and .java files under this folder used to control packet data flow when the HUA demo runs?

Srinivasalu

-Signalogic

Eric-

We have verified we can change pre-compiled HMTL files and the cgi files, and see the results in generated web pages -- so I think we're starting to understand the basic software architecture of the HUA demo project.

Now we want to add our own UDP test, and see if we can address some of the issues that Rex mantions above. However, we want to add UDP testing as C code in the HUA project, not Java scripts running on the remote (web client) machine. For example, we are thinking about a basic test with all C66x cores sending arbitrary UDP packets at slowly increasing rates, and measuring throughput on the remote machine.

For this, which documentation should we refer to? Is there any additional HUA demo documentation that might contain guidelines for this?

Thanks.

-Jeff

Rex,

Sorry for the late response. We found that HUA demo sometimes worked and sometimes didn't. We are investigating it.

Regards, Eric

Hi Eric,

Thanks for reply .We are looking forward the updated software.
We  are looking for the source code of UDP Network loopback test.It will be so useful, so that we can add our own UDP test.

Please can you answer our questions about C source code integration of HUA?

Srinivasalu
-Signalogic

Srinivasalu,

Just to set the right expectation. We are investigating why sometimes HUA demo failed between C66x EVM and PC ---- just hang there. We don't have any plan to add C code on PC side for TCP/UDP test.

For the loopback test, I checked with our test team, it was done by using smartbits, that is a test equipment.

Regards, Eric 

Eric-

Thanks for your reply.  We want to modify C66x side code, not host (PC) side.  We want to know which C66x C source files we can change to control UDP output?

Our initial objective is a C66x C program that uses HUA and generates UDP packets, which we would receive on host side using iPerf.  This program would have no host web page and no cgi scripts... or maybe a minimal web page that simply says "start the test" but otherwise runs no Java or script files.

Thanks.

-Jeff
Signalogic

In HUA demo,

main() -----> hpdspuaStart() ------> AddWebFiles(): inside this function: pFxn = (void*) &ndkThroughputBench;

if ( !strcmp(POST_values[0], "RX"))

{

if (!strcmp(PROTOCOL, "UDP"))

copyUDPTestee_NetworkOpen();

else

copyTCPTestee_NetworkOpen();

DIRECTION = 1;

}

else if (!strcmp(POST_values[0], "TX"))

{

if (!strcmp(PROTOCOL, "UDP"))

copyUDPTester_NetworkOpen();

else

copyTCPTester_NetworkOpen();

DIRECTION = 0;

}

Those functions are inside C:\ti\mcsdk_2_01_02_06\demos\hua\src\benchmark\ndkbenchmark.c

Regards, Eric

Hi Support team,

Comments in the HUA main task indicate the task does configuration and starts the IP stack,and the thread is called from BIOS.  Where is the code that actually receives a TCP/IP packet after a web page button is pushed (and script runs) on the remote machine?. I am reading through the NDK Users Guide (spru523h.pdf) but didn't find any clear information.

If the main NDK thread is not periodic and not polling for packets, then what is the mechanism that causes it to wake up and process instructions sent by the remote machine?

Srinivasalu

-Signalogic

Hi Support Team,

In HUA Project,is htmlSock created and initialized?

For example in the file ndkloopback.c,

Function Name : ndkLoopbackStart (SOCKET htmlSock, int32_t ContentLength, char *pArgs ).
Where does htmlsock are Initialized?.

I have searched for complete .c file search and didn't find it.

I need more information whether socket attributed for htmlSock((eg. blocking vs. non-blocking)

Srinivasalu
-Signalogic

Thanks. We are converting the HUA program to be event-driven. It appears the code waits on instructions from the cgi scripts running on the remote machine at this location in webserver.c:

  len = recv(htmlSock, buffer, ContentLength, MSG_WAITALL);

Srinivas is not yet able to find where htmlSock is initialized and with what attributes -- i.e. whether the socket is blocking or non-blocking.

Our objective is to make this a periodic task, and make the recv() call non-blocking.

Thanks.

-Jeff

Eric,

1) In HUA demo project, which *.c files are running on the remote machine and which are running on C66x?  I assume currently that all .c files under ../webpages sub-folder are running on the remote machine, for example as CGI functions

2) Is there any case where C66x code generates packets?  or is it always doing some type of loopback or "reacting" in some way to the remote machine?

My objective is just to get C66x code to send some UDP packets, without all the HTML, CGI, and other user-interface support that will not be used in my actual C66x system.

Srinivasalu

-Signalogic

Is this you are looking for: void CreatehtmlSockets(SOCKET htmlSock) in C:\ti\mcsdk_2_01_02_06\demos\hua\src\webpages\information.c.

Sorry for the delay.

Regards, Eric

In CreatehmlSockets() htmlSock is an input parameter, so should have already been created -- we're trying to figure out where.

We want to know htmlSock's attributes to determine if the recv() call in webserver.c is blocking. Is this where C66x code is waiting for a web page action (form submit + cgi script) on the remote machine?

Thanks.

-Jeff