qwerty_asdf
Member level 4
Hello,
I am trying some things with TLM 2.0 and I am having some problems. I do have an initiator and I want to pass 4 values in my target device.
here is my code:
Initiator:
So I want to send in the device 4 times the number 12345678.
My target code:
My problem is that i do not see data being printed out.
here is my output:
I am trying some things with TLM 2.0 and I am having some problems. I do have an initiator and I want to pass 4 values in my target device.
here is my code:
Initiator:
Code:
struct Initiator: sc_module
{
// TLM-2 socket, defaults to 32-bits wide, base protocol
tlm_utils::simple_initiator_socket<Initiator> socket;
SC_CTOR(Initiator)
: socket("socket") // Construct and name socket
{
SC_THREAD(sending_data_to_device);
}
void sending_data_to_device()
{
// TLM-2 generic payload transaction, reused across calls to b_transport
tlm::tlm_generic_payload* trans = new tlm::tlm_generic_payload;
sc_time delay = sc_time(10, SC_NS);
int data;
enum { WORDS = 4 };
// Generate sequence of writes
for (int i = 0; i < WORDS; i++)
{
data=12345678;
// Initialize 8 out of the 10 attributes, byte_enable_length and extensions being unused
trans->set_command(tlm::TLM_WRITE_COMMAND);
trans->set_address( i );
trans->set_data_ptr( reinterpret_cast<unsigned char*>(&data) );
trans->set_data_length( 4 );
trans->set_streaming_width( 4 ); // = data_length to indicate no streaming
trans->set_byte_enable_ptr( 0 ); // 0 indicates unused
trans->set_dmi_allowed( false ); // Mandatory initial value
trans->set_response_status( tlm::TLM_INCOMPLETE_RESPONSE ); // Mandatory initial value
socket->b_transport( *trans, delay ); // Blocking transport call
// Initiator obliged to check response status and delay
if ( trans->is_response_error() )
SC_REPORT_ERROR("TLM-2", "Response error from b_transport");
cout << "trans = { W" << ", " << hex << i
<< " } , data = " << hex << data << " at time " << sc_time_stamp()
<< " delay = " << delay << endl;
// Realize the delay annotated onto the transport call
wait(delay);
}
}
};
So I want to send in the device 4 times the number 12345678.
My target code:
Code:
struct Device: sc_module
{
// TLM-2 socket, defaults to 32-bits wide, base protocol
tlm_utils::simple_target_socket<Device> socket;
enum { SIZE = 4 };
int mem[SIZE];
//internal variables
SC_CTOR(Device)
: socket("socket")
{
// Register callback for incoming b_transport interface method call
socket.register_b_transport(this, &Device::b_transport);
// Initialize memory with zeros
for (int i = 0; i < SIZE; i++)
mem[i] = 0x00000000 ;
}
// TLM-2 blocking transport method --DATA MANIPULATION GOES IN HERE
virtual void b_transport( tlm::tlm_generic_payload& trans, sc_time& delay )
{
tlm::tlm_command cmd = trans.get_command();
sc_dt::uint64 adr = trans.get_address();
unsigned char* ptr = trans.get_data_ptr();
unsigned int len = trans.get_data_length();
unsigned char* byt = trans.get_byte_enable_ptr();
unsigned int wid = trans.get_streaming_width();
cout << " READING DATA IN TARGET " << *ptr << " ADDRESS: " << adr << "\n";
if (adr >= sc_dt::uint64(SIZE) || byt != 0 || len > 4 || wid < len)
SC_REPORT_ERROR("TLM-2", "Target does not support given generic payload transaction");
// Obliged to set response status to indicate successful completion
trans.set_response_status( tlm::TLM_OK_RESPONSE );
}
};
My problem is that i do not see data being printed out.
here is my output:
Code:
READING DATA IN TARGET N ADDRESS: 0
trans = { W, 0 } , data = bc614e at time 0 s delay = 10 ns
READING DATA IN TARGET N ADDRESS: 1
trans = { W, 1 } , data = bc614e at time 10 ns delay = 10 ns
READING DATA IN TARGET N ADDRESS: 2
trans = { W, 2 } , data = bc614e at time 20 ns delay = 10 ns
READING DATA IN TARGET N ADDRESS: 3
trans = { W, 3 } , data = bc614e at time 30 ns delay = 10 ns