UVM_ERROR : connection count of 0 does not meet required minimum of 1

UVM
1

Hi,

Trying to connect the APM monitor port to QSPI scoreboard export port through the TOP_ENV connect_phase(). Facing the following error and Not able to figure out the mistake in the below code. Please help me to check.

Thank you in advance.

UVM_ERROR @ 0: uvm_test_top.demo_tb0.qspi.m_qspi_sb.sb_apb_tr_monitor_port [Connection Error] connection count of 0 does not meet required minimum of 1
UVM_FATAL @ 0: reporter [BUILDERR] stopping due to build errors

//APB_MONITOR
//Analysis port declaraion.
uvm_analysis_port #(apb_transfer) item_collected_port;
function void apb_monitor::build_phase(uvm_phase phase);
   super.build_phase(phase);
   item_collected_port = new("item_collected_port", this);
endfunction : build_phase

//APB_ENV
apb_monitor bus_monitor;

function void apb_env::build_phase(uvm_phase phase);
  super.build_phase(phase);
  bus_monitor = apb_monitor::type_id::create("bus_monitor",this);
endfunction : build_phase

//QSPI_SCOREBOARD
//Export declaration.
uvm_analysis_export #(apb_pkg::apb_transfer) sb_apb_tr_monitor_port;

function void build_phase(uvm_phase phase);
   super.build_phase(phase);
   sb_apb_tr_monitor_port  = new("sb_apb_tr_monitor_port", this);
endfunction: build_phase

//QSPI_ENV
qspi_sb          m_qspi_sb;
function void qspi_env::build_phase(uvm_phase phase);
  super.build_phase(phase);
  m_qspi_sb = qspi_sb::type_id::create("m_qspi_sb",this);
endfunction: build_phase

//TOP_ENV
apb_pkg::apb_env apb0;                          // APB UVC
qspi_pkg::qspi_env qspi;                   // QSPI UVC

function automatic void build_phase(uvm_phase phase);
     super.build_phase(phase);
     apb0              = apb_pkg::apb_env::type_id::create("apb0",this);
     qspi              = qspi_pkg::qspi_env::type_id::create("qspi",this);
endfunction

function void connect_phase(uvm_phase phase);
    super.connect_phase(phase);
    //Connected APB analysis port to QSPI SB export.
    apb0.bus_monitor.item_collected_port.connect(qspi.m_qspi_sb.sb_apb_tr_monitor_port);
endfunction: connect_phase
2

In reply to srinivaskilari1985:

It seems something is wrong with your TLM connections. uvm_analysis_port does not need a coon ection. Ther might be somthing wrong in another place.
Without seeing more code it is impossible to give more instractions.