大家好，
我在C6670上面通过SRIO发送一个Doorbell包给FPGA（Xilinx V6）。
大致的代码如下：
Srio_DrvBuffer DBLL_Info;
/* Open DIO SRIO Non-Blocking Socket */
srioSocket= Srio_sockOpen (hSrioDrv, Srio_SocketType_DIO, FALSE);
if (srioSocket== NULL)
{
System_printf ("Error: Unable to open the DIO socket - %d\n", 0);
return -1;
}
// DIO Binding Information: Use 16 bit identifiers
bindInfo.dio.doorbellValid = 0;
bindInfo.dio.intrRequest = 1;
bindInfo.dio.supInt = 0;
bindInfo.dio.xambs = 0;
bindInfo.dio.priority = 0;
bindInfo.dio.outPortID = 3;
bindInfo.dio.idSize = 0;
bindInfo.dio.srcIDMap = 0;
bindInfo.dio.hopCount = 0;
bindInfo.dio.doorbellReg = 0;
bindInfo.dio.doorbellBit = 0;
/* Bind the SRIO socket: DIO sockets do not need any binding information. */
if (Srio_sockBind_DIO (srioSocket, &bindInfo) < 0)
{
System_printf ("Error: Binding the SIO socket failed.\n");
return -1;
}
//设置Doorbell Info的为Reg=1，Bit=3
*DBLL_Info = (int32_t)SRIO_SET_DBELL_INFO(1,3);
/* Populate the DIO Address Information where the data is to be sent. */
to.dio.rapidIOMSB = 0x0;
to.dio.rapidIOLSB = (uint32_t)READ_BASE_ADDR;
to.dio.dstID = 0xAA; //FPGA;
to.dio.ttype = dio_ttype;
to.dio.ftype = dio_ftype;//为0xA
//发送一次Doorbell包
if (Srio_sockSend_DIO (srioSocket,DBLL_Info, 1, (Srio_SockAddrInfo*)&to) < 0)
{
System_printf ("Debug(Core %d): DIO Socket Example Failed\n", coreNum);
return -1;
}按照我的理解，
if (Srio_sockSend_DIO (srioSocket,DBLL_Info, 1, (Srio_SockAddrInfo*)&to) < 0)
这句代码实现的是DSP对外发送一个Doorbell包，我在这里设置断点，每执行一次，可以在FPGA端通过Chipscope抓取到包。
观察包的内容的确是Doorbell类型的，TargetID、SourceID都正确。
但是问题是：
FPGA抓取的来自DSP的Doorbell包的DoorbellInfo始终为0x0000。虽然我在DSP程序中设置DoorbellInfo为Reg=1，Bit=3发送的。
而且我通过Memory Browser观察0x02900D14即LSU0的Reg5，也是DoorbellInfo为0x0000.
感觉就是DoorbellInfo没有设置到LSU里面。
请问这个问题应该如何解决？
谢谢了～～
