Altera Mentor Verification IP Altera Edition AMBA AXI4-St Manuel d'utilisateur Page 81
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VHDL API Overview
Executing Transactions
Mentor Verification IP AE AMBA AXI4-Stream User Guide, V10.3
81
April 2014
Example 7-4 shows a master BFM test program creating a master transaction with a packet
length of 10 transfers.
Example 7-4. Master BFM Test Program Transaction Creation
-- Define a local variable trans to hold the transaction record.
variable trans: integer;
-- Create a master transaction of 10 transfers.
create_master_transaction(10, trans, bfm_index,
axi4stream_tr_if_0(bfm_index));
Example 7-5 shows a slave BFM test program creating a slave transaction.
Example 7-5. Slave BFM Test Program Transaction Creation
-- Define a local variable trans to hold the transaction record.
variable trans: integer;
-- Create a slave transaction.
create_slave_transaction(trans, bfm_index,axi4stream_tr_if_0(bfm_index));
In the above example, the bfm_index specifies the actual BFM.
Executing Transactions
Executing a transaction in a master/slave BFM test program initiates the transaction onto the
protocol signals. Each master/slave BFM API has execution procedures that push transactions
into the BFM internal transaction queues. Figure 7-1 on page 76 illustrates the internal BFM
structure.
execute_transaction()
If the DUT is a slave, then the execute_transaction() procedure is called in the master BFM test
program. Example 7-6 shows a master test program executing a master transaction.
Example 7-6. Master Test Program Transaction Execution
-- Define a local variable trans to hold the transaction record.
variable trans: integer;
...
-- Create a master transaction with 10 transfers.
create_master_transaction(10, trans, bfm_index,
axi4stream_tr_if_0(bfm_index));
...
-- By default the execution of a transaction will block.
execute_transaction(trans, bfm_index, axi4stream_tr_if_0(bfm_index));
- AMBA AXI4-Stream User Guide 1
- Table of Contents 3
- List of Examples 10
- List of Figures 11
- List of Tables 12
- About This User Guide 13
- Supported Simulators 13
- Simulator GCC Requirements 14
- Chapter 1 17
- Mentor VIP Altera Edition 17
- What Is a Transaction? 18
- AXI4-Stream Transactions 19
- Chapter 2 21
- SystemVerilog API Overview 21
- Configuration 22
- Creating Transactions 22
- Transaction Record 23
- Executing Transactions 26
- Waiting Events 27
- Access Transaction Record 27
- Operation Mode 28
- Handshake Delay 29
- Transfer Done 30
- Transaction Done 30
- Chapter 3 31
- SystemVerilog Master BFM 31
- Master BFM Configuration 32
- Master Assertions 34
- SystemVerilog Master API 35
- Returns 36
- Arguments config_name 37
- Chapter 4 43
- SystemVerilog Slave BFM 43
- SystemVerilog Slave API 47
- Chapter 5 55
- SystemVerilog Monitor BFM 55
- SystemVerilog Monitor API 59
- Chapter 6 67
- SystemVerilog Tutorials 67
- Chapter 7 75
- VHDL API Overview 75
- Test Program VHDL 76
- Chapter 8 87
- VHDL Master BFM API 91
- April 2014 100
- Prototype 118
- Arguments 118
- VHDL Master BFM 122
- VHDL Slave BFM 123
- Chapter 9 123
- Slave BFM Configuration 124
- Slave Assertions 125
- VHDL Slave BFM API 126
- Chapter 10 157
- VHDL Monitor BFM 157
- Monitor BFM Configuration 158
- Monitor Assertions 159
- VHDL Monitor BFM API 161
- Chapter 11 181
- VHDL Tutorials 181
- Master BFM Test Program 182
- Verifying a Master DUT 185
- Chapter 12 189
- Running the Qsys Tool 193
- Running a Simulation 195
- ModelSim Simulation 196
- Editing the modelsim.ini File 199
- Questa Simulation 200
- Cadence IES Simulation 200
- Synopsys VCS Simulation 202
- Chapter 13 205
- Assertions 205
- Appendix A 209
- Programs 209
- Appendix B 213
- VHDL Slave BFM Code Example 216
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