trafgen: xtrafgen_master_streaming_example.c File Reference

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xtrafgen_master_streaming_example.c File Reference

## Overview

This file demonstrates how to use the xtrafgen driver on the Xilinx AXI Traffic Generator core.

The AXI Traffic Generator IP is designed to generate AXI4 traffic which can be used to stress different modules/ interconnect connected in the system.

This example demonstrates how to use Streaming mode in Axi Traffic Genrator When Configured in Master only mode.In this mode the core generates Streaming Traffic based on the transfer length and transfer count configured. To test this example hardware Must contain a Streaming FIFO and the Connections To Axi TrafficGen needs to made As shown below

____________ _________|AXI_STR_RXD | | | | | | | |_____| | | | axi_master| |________________| |____________|

Axi TrafficGen Axi Stream FIFO

     MODIFICATION HISTORY:

     Ver   Who  Date     Changes
     ----- ---- -------- -------------------------------------------------------
     1.01a adk  03/09/13 First release
     2.00a adk  16/09/13 Fixed CR:737291
     2.01a adk  15/11/13 Fixed CR:760808
     4.1   ms   01/23/17 Modified xil_printf statement in main function to
                         ensure that "Successfully ran" and "Failed" strings
                         are available in all examples. This is a fix for
                         CR-965028.
           ms   04/05/17 Added tabspace for return statements in functions for
                         proper documentation while generating doxygen and also
                         modified filename tag to include the file in doxygen
                         examples.

## Functions
int | XTrafGenStremingModeMasterExample (XTrafGen *InstancePtr, u16 DeviceId)
| This function demonstrates the usage Traffic Generator It does the following: More...
int | main ()
| Main function. More...

## Function Documentation

int main | ( |  | ) |

Main function.

This function is the main entry of the traffic generator test.

Parameters

  None |

Returns
  - XST_SUCCESS if tests pass

- XST_FAILURE if fails.

Note
  None.

References XTrafGenStremingModeMasterExample().

int XTrafGenStremingModeMasterExample | ( | XTrafGen * | InstancePtr,
|  | u16 | DeviceId
| ) |  |

This function demonstrates the usage Traffic Generator It does the following:

      - Set up the output terminal if UART16550 is in the hardware build
      - Initialize the AXI Traffic Generator device
      - Initialize the Streaming FIFO device
      - Set the Desired Transfer Count and Transfer Length
      - Enable the Traffic Generation on the Core
      - Check for the Streaming data on the FIFO
      - Return test status and exit

Parameters

  InstancePtr | is a pointer to the instance of the XTrafGen component.
  DeviceId | is Device ID of the Axi Traffic Generator Device,
  InstancePtr | is a pointer to the instance of the XTrafGen component.
  DeviceId | is Device ID of the Axi Traffic Generator Device, typically XPAR_<TRAFGEN_instance>_DEVICE_ID value from xparameters.h.

Returns
  -XST_SUCCESS to indicate success -XST_FAILURE to indicate failure

References XTrafGen_Config::BaseAddress, XTrafGen::OperatingMode, XTG_MODE_STREAMING, XTrafGen_CfgInitialize(), XTrafGen_GetStreamingTransCnt, XTrafGen_GetStreamingTransLen, XTrafGen_LookupConfig(), XTrafGen_ResetStreamingRandomLen, XTrafGen_SetStreamingTransCnt, XTrafGen_SetStreamingTransLen, and XTrafGen_StreamEnable.

Referenced by main().