How to disabled TesterPresent

[H.Tina]

Dear sir or Mrs

I have a question want to ask for help ,after send SvcDiagnosticSessionControl(10 03) services,then TesterPresent Sevices will be send Automatic in period. I have see someone ask for this question and solve it .so I did as the example by the step .but Why I did not worked
my code as follwing,can you help me changed it

Code: Select all

TPUDSStatus status;
            status = UDSApi.SvcDiagnosticSessionControl(m_PcanHandle, ref UDSMsg, UDSApi.TPUDSSvcParamDSC.PUDS_SVC_PARAM_DSC_ECUEDS);
            if (status == TPUDSStatus.PUDS_ERROR_OK)
            {
                status = UDSApi.WaitForService(m_PcanHandle, out ResponseMsg, ref UDSMsg, out UDSMsg);
               if (status == TPUDSStatus.PUDS_ERROR_OK)
               {
                   TPUDSSessionInfo sessionInfo = new TPUDSSessionInfo();
                   int sessionSize;
                   IntPtr sessionPtr;
                   sessionInfo.NETADDRINFO.SA = 0xF1;
                   sessionInfo.NETADDRINFO.TA = (byte)TPUDSAddress.PUDS_ISO_15765_4_ADDR_ECU_1;
                   sessionInfo.NETADDRINFO.TA_TYPE = TPUDSAddressingType.PUDS_ADDRESSING_PHYSICAL;
                   sessionInfo.NETADDRINFO.RA = 0x00;
                   sessionInfo.NETADDRINFO.PROTOCOL = TPUDSProtocol.PUDS_PROTOCOL_ISO_15765_2_11B;
                   sessionSize = Marshal.SizeOf(sessionInfo);
                   sessionPtr = Marshal.AllocHGlobal(sessionSize);
                   Marshal.StructureToPtr(sessionInfo, sessionPtr, false);
                   status = UDSApi.GetValue(m_PcanHandle, TPUDSParameter.PUDS_PARAM_SESSION_INFO, sessionPtr, (uint)sessionSize);
                   sessionInfo = (TPUDSSessionInfo)Marshal.PtrToStructure(sessionPtr, typeof(TPUDSSessionInfo));                 
                   Marshal.FreeHGlobal(sessionPtr);
                   sessionInfo.SESSION_TYPE = (byte)UDSApi.TPUDSSvcParamDSC.PUDS_SVC_PARAM_DSC_DS;
                   status = UDSApi.SetValue(m_PcanHandle, TPUDSParameter.PUDS_PARAM_SESSION_INFO, sessionPtr, (uint)sessionSize);                
               }
            }    

I hope can solve this problem,this confusing me a long time

best wishes

[H.Tina]

Dear
Can someone help me .I did like you said in form ,but the result is like this
2F 44 00 44 00 44 00 44
4326) 241919.0 Rx 0706 8 20 00 44 00 44 00 44 00
4327) 241929.3 Rx 0706 8 21 44 00 44 00 44 00 44
4328) 241939.3 Rx 0706 8 22 00 44 00 44 00 55 55
4329) 241939.6 Rx 0706 8 02 3E 80 55 55 55 55 55
4330) 241942.3 Rx 0716 8 03 7F 36 78 00 00 00 00
4331) 241952.3 Rx 0716 8 03 7F 76 11 00 00 00 00
4332) 243802.5 Rx 0706 8 02 3E 80 55 55 55 55 55
3E 30 is still active.How to solve it .Thank you very much

best wishes

[K.Wagner]

Dear,

within the UDS package you will find two sample projects in C++, "PCUClient" and "PCUServer". The PCUClient has in its _tmain function several test-function calls. One of them is "testDiagnosticSessionControl". You can comment out the others and check the behavior of it by starting the server on a PCAN channel and the cleint ina second channel.

Main function of PCUClient.cpp

PUDS.PNG (38.68 KiB) Viewed 1323 times

when this function runs, it will first configure a programming session, so that it will start sending the TesterPresent message.

Transmitting TesterPresent

UDS_Transmitting.PNG (47.44 KiB) Viewed 1323 times

After hitting a key it will disable again by configuring the session as DEFAULT. You will see, TesterPresent messages are not transmitted anymore.

TesterPresent is disabled again

UDS_Not_Transmitting.PNG (39.22 KiB) Viewed 1323 times

Please check and understand the code and then port it to your programming language as needed (C#)

[H.Tina]

Dear Sir
I have see the example servel times and did as the example,but TesterPresent still active. the following is my code ,can you take a time to see,and check it ,if is wrong please help me corrected it .Then i will be deeply greetful.Thank you very very very much

Code: Select all

          
TPUDSNetAddrInfo N_AI = new TPUDSNetAddrInfo();
N_AI.SA =(byte)TPUDSAddress.PUDS_ISO_15765_4_ADDR_TEST_EQUIPMENT ;
N_AI.TA =(byte)TPUDSAddress .PUDS_ISO_15765_4_ADDR_OBD_FUNCTIONAL;
N_AI.TA_TYPE = TPUDSAddressingType.PUDS_ADDRESSING_FUNCTIONAL;
N_AI.RA = 0x00;
N_AI.PROTOCOL = TPUDSProtocol.PUDS_PROTOCOL_ISO_15765_2_11B;
TPUDSMsg UDSMsg = new TPUDSMsg();
TPUDSMsg ResponseMsg = new TPUDSMsg();
UDSMsg.NETADDRINFO = N_AI;
TPUDSStatus status;

status = UDSApi.SvcDiagnosticSessionControl(ch,refUDSMsg,UDSApi.TPUDSSvcParamDSC.PUDS_SVC_PARAM_DSC_ECUEDS);//10 03

if (status == TPUDSStatus.PUDS_ERROR_OK)
{
    status = UDSApi.WaitForService(m_PcanHandle, out ResponseMsg, ref UDSMsg, out UDSMsg);
    if (status == TPUDSStatus.PUDS_ERROR_OK)
    {
        TPUDSSessionInfo sessionInfo = new TPUDSSessionInfo();                 
        int sessionSize;
        IntPtr sessionPtr;
        sessionInfo.NETADDRINFO.SA = 0xF1;
        sessionInfo.NETADDRINFO.TA = (byte)TPUDSAddress.PUDS_ISO_15765_4_ADDR_ECU_1;
        sessionInfo.NETADDRINFO.TA_TYPE = TPUDSAddressingType.PUDS_ADDRESSING_PHYSICAL;
        sessionInfo.NETADDRINFO.RA = 0x00;
        sessionInfo.NETADDRINFO.PROTOCOL = TPUDSProtocol.PUDS_PROTOCOL_ISO_15765_2_11B;
        sessionSize = Marshal.SizeOf(sessionInfo);
        sessionPtr = Marshal.AllocHGlobal(sessionSize);
        Marshal.StructureToPtr(sessionInfo, sessionPtr, false);
        
        status = UDSApi.GetValue(ch, TPUDSParameter.PUDS_PARAM_SESSION_INFO, sessionPtr, (uint)sessionSize);
                   sessionInfo.SESSION_TYPE = (byte)UDSApi.TPUDSSvcParamDSC.PUDS_SVC_PARAM_DSC_DS; 
        status = UDSApi.SetValue(ch, TPUDSParameter.PUDS_PARAM_SESSION_INFO, sessionPtr ,(uint)sessionSize);                 
    }
}

best wishes

[H.Tina]

Dear
I have solved this question .Thank you very mush
best wishes

[omg991]

Hi,
i've the same problem that the "tester present" doesn't stopping, how did you solve?

[K.Wagner]

Hello,

please see this post: viewtopic.php?f=182&t=6031