event has no registered callback!0核向1核发Notify 不成功

Lucius Green

又是奇怪的问题：使用Notify 在core 0和core1 进行通信，core0 向core 1 sendEvent就:event has no registered callback!

core1 给自己sendEvent 就能正常运行!这是为什么？代码如下(其中Ipc_attach的使用部分参考了帖子：e2e.ti.com/support/processors/f/791/p/661148/2429976?tisearch=e2e-quicksearch&keymatch=Ipc.procSync#2429976)

.c code:

#include "EVM_init.h"

uint32_t maxFlashes = 3;
uint32_t EVENTID = 0;
Void cbFxn(UInt16 procId, UInt16 lineId, UInt32 eventId, UArg arg, UInt32 payload)
{
    Semaphore_post(semHandle);
}
void ledPlayTask (void)
{
    Int status;
    uint32_t coreId/*,i=0*/;
    coreId = CSL_chipReadReg (CSL_CHIP_DNUM);
    /*UInt16  procId;
    procId = 2;*/
    UInt16  numProcs;
    numProcs = MultiProc_getNumProcessors();

    switch(coreId)
    {
    case 0:
        platform_write("core %d is working, Dsp num : %d\n",coreId,numProcs);
        /*status = Ipc_start();
        if (status < 0) {
        System_abort("Ipc_start failed\n");
        }*/
        while(Ipc_attach(1))
        {
            Task_sleep(1);
        }
        status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE);
        switch(status)
        {
        case Notify_E_EVTNOTREGISTERED :
            platform_write("event has no registered callback \n");
            break;
        case Notify_E_NOTINITIALIZED :
            platform_write("remote driver has not yet been initialized \n");
            break;
        case Notify_E_EVTDISABLED :
            platform_write("remote event is disabled \n");
            break;
        case Notify_E_TIMEOUT :
            platform_write("timeout occurred (when waitClear is TRUE) \n");
            break;
        case Notify_S_SUCCESS :
            platform_write(" event successfully sent \n");
            break;
        default :
            platform_write(" What? \n");
            break;
        }
        break;
    case 1:
        platform_write("core %d is working, Dsp num : %d\n",coreId,numProcs);
        /*status = Ipc_start();
        if (status < 0) {
        System_abort("Ipc_start failed\n");
        }*/
        while(Ipc_attach(0))
        {
            Task_sleep(1);
        }
        //Task_sleep(10);
        //status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE);
        /*status = Notify_sendEvent(coreId, 0, EVENTID, 0, TRUE);
        switch(status)
        {
        case Notify_E_EVTNOTREGISTERED :
            platform_write("event has no registered callback \n");
            break;
        case Notify_E_NOTINITIALIZED :
            platform_write("remote driver has not yet been initialized \n");
            break;
        case Notify_E_EVTDISABLED :
            platform_write("remote event is disabled \n");
            break;
        case Notify_E_TIMEOUT :
            platform_write("timeout occurred (when waitClear is TRUE) \n");
            break;
        case Notify_S_SUCCESS :
            platform_write(" event successfully sent \n");
            break;
        default :
            platform_write(" What? \n");
            break;
        }*/
        Semaphore_pend(semHandle,BIOS_WAIT_FOREVER);
        platform_write("Core %d EVENT HAVE ARRIVED!\n",coreId);
        break;
    }

}
Int main()
{
    UInt16 dsp_id;
    Int status;
    status = Ipc_start();
    if (status < 0) {
    System_abort("Ipc_start failed\n");
    }
    else
    {
        platform_write("IPC STATUS:%d \n",status);
    }
    dsp_id = MultiProc_self();
    //platform_write("dsp_id is %d  \n",dsp_id);
    status = Notify_registerEvent(dsp_id, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);
    if (status < 0) {
        System_abort("Notify_registerEvent failed\n");
    }
    platform_write("Start BIOS 6\n");
    BIOS_start();    /* does not return */
    return(0);
}

运行到status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE);就返回event has no registered callback,能帮看看为什么吗？

5 年多前

0 Lucius Green 5 年多前

Expert 1170 points

打印输出:

IPC STATUS:0 
[C66xx_1] IPC STATUS:0 
[C66xx_0] Start BIOS 6
[C66xx_1] Start BIOS 6
[C66xx_0] core 0 is working, Dsp num : 8
[C66xx_1] core 1 is working, Dsp num : 8
[C66xx_0] event has no registered callback

0 Nancy Wang 5 年多前

TI__Guru** 110395 points

Notify_registerEvent的第一个参数procId 是指 Remote processor id，看你的代码中是MultiProc_self，是不是这里有问题？改一下看看。
dsp_id = MultiProc_self();
status = Notify_registerEvent(dsp_id, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);

0 Lucius Green 5 年多前回复 Nancy Wang

Expert 1170 points

Nancy:
是这样的, 我的代码是在coro0 和core 1都下载了的,下面这句：
Notify_registerEvent(MultiProc_self(), 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);
代表core0 注册：Notify_registerEvent(0, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);
core1 注册：Notify_registerEvent(1, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);
按照我的理解，0核的注册0核的，1核注册1核的，
0核通知1核的时候就 : status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE); 启动1核的事件
1核通知0核的时候就：status = Notify_sendEvent(0, 0, EVENTID, 0, TRUE);启动0核的事件
我这么做逻辑对吗？还是我就这个逻辑理解有问题？

0 Lucius Green 5 年多前回复 Nancy Wang

Expert 1170 points

Nancy :
改了试了下，也不对。试了几种：

1核注册 0 :Notify_registerEvent(0, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);0核发送1：status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE);
1核注册0 :Notify_registerEvent(0, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);0核发送0：status = Notify_sendEvent(0, 0, EVENTID, 0, TRUE);
1核注册1 :Notify_registerEvent(1, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);0核发送0：status = Notify_sendEvent(0, 0, EVENTID, 0, TRUE);
1核注册1 :Notify_registerEvent(1, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);0核发送1：status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE);
这4种情况都不对，都是打印:status = Notify_sendEvent(0, 0, EVENTID, 0, TRUE);
我彻底混乱了，哈哈，完全摸不到头脑

0 Nancy Wang 5 年多前回复 Lucius Green

TI__Guru** 110395 points

1核注册 0 :Notify_registerEvent(0, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);0核发送1：status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE);
这个逻辑是对的。
main函数中加上判断看看：
if(MultiProc_self()==masterProc)

status = Notify_registerEvent(sloverProc1, INTERRUPT_LINE, EVENTID,
(Notify_FnNotifyCbck)cbFxn, NULL);

else
status = Notify_registerEvent(masterProc, INTERRUPT_LINE, EVENTID,
(Notify_FnNotifyCbck)cbFxn, NULL);

0 Lucius Green 5 年多前回复 Nancy Wang

Expert 1170 points

masterProc 是指 0核吗(masterProc =0)？ sloverProc1 是指1核吗(sloverProc1=1)？

0 Lucius Green 5 年多前回复 Nancy Wang

Expert 1170 points

程序已经改了，如下：

#include "EVM_init.h"

uint32_t maxFlashes = 3;
uint32_t EVENTID = 0;
UInt16 masterProc=0;
UInt16 sloverProc=1;

Void cbFxn(UInt16 procId, UInt16 lineId, UInt32 eventId, UArg arg, UInt32 payload)
{
    Semaphore_post(semHandle);
}
void ledPlayTask (void)
{
    Int status;
    uint32_t coreId;
    coreId = CSL_chipReadReg (CSL_CHIP_DNUM);
    switch(coreId)
    {
    case 0:
        platform_write("core %d is working\n",coreId);
        while(Ipc_attach(1))
        {
            Task_sleep(1);
        }
        status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE);//core0 sendEvent
        my_print_status_for_Notify_sendEvent(status);
        break;
    case 1:
        platform_write("core %d is working\n",coreId);
        while(Ipc_attach(0))
        {
            Task_sleep(1);
        }
       // status = Notify_sendEvent(1, 0, EVENTID, 0, TRUE);//core1 sendEvent
        Semaphore_pend(semHandle,BIOS_WAIT_FOREVER);
        platform_write("Core0 to core1 Notify event successfully!\n",coreId);
        break;
    }
}
Int main()
{
    Int status;
    platform_write("*****************************\n");
    status = Ipc_start();
    if (status < 0) {
    System_abort("Ipc_start failed\n");
    }
    if(MultiProc_self()==1)//Core1 register event callback function:
    {
        status = Notify_registerEvent(masterProc, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);
        if (status < 0) {
            System_abort("Notify_registerEvent failed\n");
        }
        else
        {
            platform_write("Core 1 ,registerEvent %d \n",masterProc);
        }
    }
    else
    {
        status = Notify_registerEvent(sloverProc, 0, EVENTID,(Notify_FnNotifyCbck)cbFxn, NULL);
    }
    BIOS_start();
    return(0);
}

输出：

*****************************
[C66xx_1] *****************************
[C66xx_0] core 0 is working
[C66xx_1] Core 1 ,registerEvent 0
core 1 is working
[C66xx_0] event has no registered callback

处理器

处理器论坛

event has no registered callback!0核向1核发Notify 不成功