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Mentor Verification IP AE AMBA AXI4-Stream User Guide, V10.3
126
VHDL Slave BFM
VHDL Slave BFM API
April 2014
Example 9-2. Slave BFM Individual Assertion Enable/Disable
-- Define a local bit vector to hold the value of the assertion bit vector
variable config_assert_bitvector :
std_logic_vector(AXI4STREAM_MAX_BIT_SIZE-1 downto 0);
-- Get the current value of the assertion bit vector
get_config(AXI4STREAM_CONFIG_ENABLE_ASSERTION, config_assert_bitvector,
bfm_index, axi4stream_tr_if_0(bfm_index));
-- Assign the AXI4STREAM_TLAST_CHANGED_BEFORE_TREADY assertion bit to 0
config_assert_bitvector(AXI4STREAM_TLAST_CHANGED_BEFORE_TREADY) := ‘0’;
-- Set the new value of the assertion bit vector
set_config(AXI4STREAM_CONFIG_ENABLE_ASSERTION, config_assert_bitvector,
bfm_index, axi4stream_tr_if_0(bfm_index));
Note
Do not confuse the AXI4STREAM_CONFIG_ENABLE_ASSERTION bit vector with the
AXI4STREAM_CONFIG_ENABLE_ALL_ASSERTIONS global enable/disable.
To re-enable the AXI4STREAM_TLAST_CHANGED_BEFORE_TREADY assertion, follow
the code sequence in Example 9-2 and assign the assertion within the
AXI4STREAM_CONFIG_ENABLE_ASSERTION bit vector to 1.
For a complete listing of assertions, refer to “Assertions” on page 205.
VHDL Slave BFM API
This section describes the VHDL Slave BFM API.
Each procedure available within the slave BFM API is detailed in the following chapter. The
set*() and get*() procedures that operate on the Transaction Record fields have a simple rule for
the procedure name: set_ or get_ followed by the name of the transaction field to be accessed.
Refer to “Transaction Record” on page 23 for details of transaction field names.
Note
The slave BFM API package is the axi4stream/bfm/mgc_axi4stream_bfm_pkg.vhd file
packaged within the Mentor Verification IP Altera Edition.
- 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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