Altera Arria V Hard IP for PCI Express - Manual (Page 266)

17–44 Chapter 17: Testbench and Design Example
BFM Procedures and Functions
Arria V Hard IP for PCI Express December 2013 Altera Corporation
User Guide
dimage7
This function creates a seven-digit decimal string representation of the input
argument that can be concatenated into a larger message string and passed to
ebfm_display .
Procedures and Functions Specific to the Chaining DMA Design Example
This section describes procedures that are specific to the chaining DMA design
example. These procedures are located in the Verilog HDL module file
altpcietb_bfm_driver_rp.v
.
chained_dma_test Procedure
The chained_dma_test procedure is the top-level procedure that runs the chaining
DMA read and the chaining DMA write
Argument range vec Input data type reg with a range of 31:0.
Return range string
Returns a 6-digit decimal representation of the input argument that is padded with leading
0s if necessary. Return data is type
reg with a range of 48:1.
Returns the letter U if the value cannot be represented.
Table 17–53. dimage6
Table 17–54. dimage7
Location altpcietb_bfm_log.v
syntax string:= dimage(vec)
Argument range vec Input data type reg with a range of 31:0.
Return range string
Returns a 7-digit decimal representation of the input argument that is padded with
leading 0s if necessary. Return data is type
reg with a range of 56:1.
Returns the letter <U> if the value cannot be represented.
Table 17–55. chained_dma_test Procedure
Location altpcietb_bfm_driver_rp.v
Syntax chained_dma_test (bar_table, bar_num, direction, use_msi, use_eplast)
Arguments
bar_table Address of the Endpoint bar_table structure in BFM shared memory.
bar_num BAR number to analyze.
direction
When 0 the direction is read.
When 1 the direction is write.
Use_msi When set, the Root Port uses native PCI Express MSI to detect the DMA completion.
Use_eplast When set, the Root Port uses BFM shared memory polling to detect the DMA completion.