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#1 2018-Aug-09 07:15:19

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

802.11 reference design

i am creating sdk workspace using Mango_802.11_RefDes_v1.7.7 (reference design). if i use SVN revision 6296 insted of 6293 for v1.7.7 will it cause any problem?

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#2 2018-Aug-09 08:57:37

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4964

Re: 802.11 reference design

You should use the C code included in the reference design archive (equivalent to svn rev 6293 for v1.7.7). The C code in SVN is under active development and is not guaranteed to work with the public hardware projects.

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#3 2018-Aug-10 02:01:51

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

For creating sdk workspace i am following steps mentioned in https://warpproject.org/trac/wiki/802.11/Usage/SDK. for repository settings i followed steps in  https://warpproject.org/trac/wiki/edk_user_repository. after launching sdk i am getting following errors



12:05:36 INFO    : Launching XSDB server: xsdb.bat -interactive C:\warp\EDK_Projects\Mango_802.11_RefDes_v1.7.7\SDK_Workspace\temp_xsdb_launch_script.tcl
12:05:38 INFO    : XSDB server has started successfully.
12:05:38 INFO    : Restoring global repository preferences:
         C:\repository
12:05:39 INFO    : Restoring local repository preferences:
         C:\warp\EDK_Projects\Mango_802.11_RefDes_v1.7.7
12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core cpu of version 1.14.a not found in repositories

12:05:40 ERROR    :  [Common 17-39] 'hsi::open_sw_design' failed due to earlier errors.
12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core axicdma of version 2.01.a not found in repositories
ERROR: [Hsi 55-1594] Core sysmon of version 5.02.a not found in repositories
ERROR: [Hsi 55-1594] Core v6_ddrx of version 2.00.a not found in repositories
ERROR: [Hsi 55-1594] Core axidma of version 7.01.a not found in repositories
ERROR: [Hsi 55-1594] Core axiethernet of version 3.00.a not found in repositories
ERROR: [Hsi 55-1594] Core axidma of version 7.01.a not found in repositories
ERROR: [Hsi 55-1594] Core axiethernet of version 3.00.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core intc of version 2.05.a not found in repositories
ERROR: [Hsi 55-1594] Core gpio of version 3.00.a not found in repositories
ERROR: [Hsi 55-1594] Core tmrctr of version 2.04.a not found in repositories
ERROR: [Hsi 55-1594] Core uartlite of version 2.00.a not found in repositories
ERROR: [Hsi 55-1594] Core mbox of version 3.02.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core mutex of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core w3_iic_eeprom_axi of version 1.02.a not found in repositories
ERROR: [Hsi 55-1594] Core wlan_mac_time_hw_axiw of version 1.00.d not found in repositories
ERROR: [Hsi 55-1594] Core standalone of version 3.08.a not found in repositories
ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core cpu of version 1.14.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core axicdma of version 2.01.a not found in repositories
ERROR: [Hsi 55-1594] Core sysmon of version 5.02.a not found in repositories
ERROR: [Hsi 55-1594] Core v6_ddrx of version 2.00.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core axidma of version 7.01.a not found in repositories
ERROR: [Hsi 55-1594] Core axiethernet of version 3.00.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core axidma of version 7.01.a not found in repositories
ERROR: [Hsi 55-1594] Core axiethernet of version 3.00.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core intc of version 2.05.a not found in repositories
ERROR: [Hsi 55-1594] Core gpio of version 3.00.a not found in repositories
ERROR: [Hsi 55-1594] Core tmrctr of version 2.04.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core uartlite of version 2.00.a not found in repositories
ERROR: [Hsi 55-1594] Core mbox of version 3.02.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core mutex of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core w3_iic_eeprom_axi of version 1.02.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core wlan_mac_time_hw_axiw of version 1.00.d not found in repositories
ERROR: [Hsi 55-1594] Core standalone of version 3.08.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:40 INFO    : Unable to read in MSS file C:\warp\EDK_Projects\Mango_802.11_RefDes_v1.7.7\SDK_Workspace\wlan_bsp_cpu_high\system.mss : null
12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core cpu of version 1.14.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core axicdma of version 2.01.a not found in repositories
ERROR: [Hsi 55-1594] Core sysmon of version 5.02.a not found in repositories
ERROR: [Hsi 55-1594] Core v6_ddrx of version 2.00.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core axidma of version 7.01.a not found in repositories
ERROR: [Hsi 55-1594] Core axiethernet of version 3.00.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core axidma of version 7.01.a not found in repositories
ERROR: [Hsi 55-1594] Core axiethernet of version 3.00.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core intc of version 2.05.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core gpio of version 3.00.a not found in repositories
ERROR: [Hsi 55-1594] Core tmrctr of version 2.04.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core uartlite of version 2.00.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core mbox of version 3.02.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core mutex of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core w3_iic_eeprom_axi of version 1.02.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core wlan_mac_time_hw_axiw of version 1.00.d not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core standalone of version 3.08.a not found in repositories
ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:40 ERROR    : Failed in generating sources
12:05:40 INFO    : BSP Project P/wlan_bsp_cpu_high has been successfully migrated.
12:05:40 ERROR    :  [Common 17-39] 'hsi::open_sw_design' failed due to earlier errors.
12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core cpu of version 1.14.a not found in repositories
ERROR: [Hsi 55-1594] Core sysmon of version 5.02.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core uartlite of version 2.00.a not found in repositories
ERROR: [Hsi 55-1594] Core mbox of version 3.02.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core mutex of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core radio_controller_axi of version 3.01.a not found in repositories
ERROR: [Hsi 55-1594] Core w3_ad_controller_axi of version 3.02.a not found in repositories
ERROR: [Hsi 55-1594] Core w3_clock_controller_axi of version 4.00.a not found in repositories
ERROR: [Hsi 55-1594] Core w3_iic_eeprom_axi of version 1.02.a not found in repositories
ERROR: [Hsi 55-1594] Core wlan_agc_axiw of version 2.00.d not found in repositories
ERROR: [Hsi 55-1594] Core wlan_mac_hw_axiw of version 2.01.l not found in repositories
ERROR: [Hsi 55-1594] Core wlan_mac_time_hw_axiw of version 1.00.d not found in repositories
ERROR: [Hsi 55-1594] Core wlan_phy_rx_pmd_axiw of version 4.01.x not found in repositories
ERROR: [Hsi 55-1594] Core wlan_phy_tx_pmd_axiw of version 4.01.a not found in repositories
ERROR: [Hsi 55-1594] Core standalone of version 3.08.a not found in repositories
ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core cpu of version 1.14.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core sysmon of version 5.02.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core uartlite of version 2.00.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core mbox of version 3.02.a not found in repositories
ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core bram of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1594] Core mutex of version 3.01.a not found in repositories

12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:40 INFO    : Unable to read in MSS file C:\warp\EDK_Projects\Mango_802.11_RefDes_v1.7.7\SDK_Workspace\wlan_bsp_cpu_low\system.mss : null
12:05:40 ERROR    : (XSDB Server)ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:40 ERROR    : Failed in generating sources
12:05:40 INFO    : BSP Project P/wlan_bsp_cpu_low has been successfully migrated.
12:05:47 ERROR    : (XSDB Server)ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:47 ERROR    :  [Common 17-39] 'hsi::open_sw_design' failed due to earlier errors.
12:05:47 INFO    : Unable to read in MSS file C:\warp\EDK_Projects\Mango_802.11_RefDes_v1.7.7\SDK_Workspace\wlan_bsp_cpu_high\system.mss : null
12:05:47 ERROR    : Failed to closesw "C:/warp/EDK_Projects/Mango_802.11_RefDes_v1.7.7/SDK_Workspace/wlan_bsp_cpu_high/system.mss"
Reason: Cannot close sw design 'C:/warp/EDK_Projects/Mango_802.11_RefDes_v1.7.7/SDK_Workspace/wlan_bsp_cpu_high/system.mss'.
Design is not opened in the current session.


12:05:47 ERROR    : (XSDB Server)ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:48 ERROR    : (XSDB Server)ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:48 ERROR    :  [Common 17-39] 'hsi::open_sw_design' failed due to earlier errors.
12:05:48 ERROR    : (XSDB Server)ERROR: [Hsi 55-1452] Error: running open_sw_design.

12:05:48 INFO    : Unable to read in MSS file C:\warp\EDK_Projects\Mango_802.11_RefDes_v1.7.7\SDK_Workspace\wlan_bsp_cpu_high\system.mss : null
12:05:48 ERROR    : (XSDB Server)ERROR: [Hsi 55-1452] Error: running open_sw_design.

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#4 2018-Aug-10 09:28:12

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4964

Re: 802.11 reference design

What version of the Xilinx SDK are you using?

The 802.11 Reference Design for WARP v3 requires SDK 14.4, part of the Xilinx ISE 14.4 tools. The design will not work with other SDK versions.

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#5 2018-Aug-11 23:14:21

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

i am using Xilinx ISE 14.4 tool only but still i am getting these errors,what would be the reason for it?

Last edited by Bobbili Vinitha (2018-Aug-11 23:23:40)

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#6 2018-Aug-12 11:33:30

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4964

Re: 802.11 reference design

I do not believe the log output above is being printed by SDK 14.4. The references to xsdb, hsi::open_sw_design, "BSP Project P/wlan_bsp_cpu_high has been successfully migrated.", etc., are consistent with a newer (Vivado) SDK. ISE/SDK 14.4 is the only supported tool version for the 802.11 Reference Design on WARP v3.

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#7 2018-Aug-13 07:01:56

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

After reinstalling ISE 14.4 sdk workspace created without any errors. earlier i used vivado 2016.2 sdk by mistake that's why i got errors.Thank you

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#8 2018-Aug-14 07:04:21

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

By following steps in http://warpproject.org/trac/wiki/WARPLab/QuickStart and using m code file we have generated and transmitted ofdm signal from warp v3 board. we observed that transmitted signal on spectrum analyzer. we get peak at 2.4 GHZ.
now instead of using mcode i have programmed fpga on warp v3 board with 802.11 reference design by following steps in http://warpproject.org/trac/wiki/802.11/Usage/SDK
but i am unable to observe ofdm signal on spectrum analyzer. why? After programming fpga with 802.11 design is ofdm signal generating on the board? to observe the signal do i need to follow any additional steps?

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#9 2018-Aug-14 09:28:49

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4964

Re: 802.11 reference design

If you need an 802.11 node to transmit at high duty cycle, you will need to provide a source of Tx traffic. You could use Local Traffic Generator (LTG) flows via the wlan_exp framework, or connect the node's ETH A port to an Ethernet network and send high rate multicast flows.

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#10 2018-Aug-16 01:29:59

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

what is the use of .bit file in  http://warpproject.org/trac/wiki/WARPLab/QuickStart  which  is programmed on fpga of warp v3 board???

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#11 2018-Aug-16 05:32:38

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

while programming fpga of warp v3 board for ofdm signal generation which .elf file i need to select among high_ap.elf,high_ibss.elf,high_sta.elf for CPU HIGH and low_dcf.elf, low_nomac.elf for CPU LOW???

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#12 2018-Aug-16 05:44:43

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

After programming fpga with 802.11 design is ofdm signal generating on the board? to observe it on spectrum analyzer do i need to make transmitted signal duty cycle high???

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#13 2018-Aug-16 09:27:12

chunter
Administrator
From: Mango Communications
Registered: 2006-Aug-24
Posts: 1184

Re: 802.11 reference design

You need to spend more time studying the documentation and searching around the web for other resources (for example, the WARP project is not the only resource for determining what a .bit file does on a Xilinx FPGA). This forum is not a good fit to ask every small question you may have as you learn the tools and the project.

Regarding the spectrum analyzer question, it depends on your spectrum analyzer. Many allow external triggering which may allow you to trigger the analysis on the transmission signal in the debug header. Others allow energy-based triggers, which would realize a similar behavior without the need for an external wire. Finally, analyzers that offer no triggering might require a high duty cycle in order to show the spectrum.

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#14 2018-Aug-20 08:29:44

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

i have to observe ofdm signal generated on the warp board after programming fpga with 802.11 design. log_capture_continuolus.py  contains nodes tx and rx events so if i plot  log_capture_continuous.py  will i able to observe the ofdm signal???

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#15 2018-Aug-20 09:18:31

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4964

Re: 802.11 reference design

log_capture_continuous.py configures a single node as a receiver. This is not a good example to use if you need a node to transmit.

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#16 2018-Aug-21 07:46:38

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

sir suggest me a way to observe generated ofdm signal after programming 802.11 reference design on warp v3 board???

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#17 2018-Aug-21 08:39:12

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4964

Re: 802.11 reference design

Refer to post #9 above for my suggestions.

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#18 2018-Sep-19 06:05:27

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

While doing Channel Estimate Viewer example i am getting following errors.Are these errors because of the python software version i used??? i downloaded the software from http://warpproject.org/trac/wiki/802.11 … ngStarted. how to resolve these errors?

(base) C:\work\Python_Reference\examples\chan_est_viewer>python chan_ests_to_HDF
5.py sta_two_node_two_flow_capture.hdf5
Reading log file 'sta_two_node_two_flow_capture.hdf5' ( 33.8 MB)

WLAN Exp Log Example: OFDM Rx Entry Exporter
C:\ProgramData\Anaconda3\lib\site-packages\h5py\__init__.py:36: FutureWarning: C
onversion of the second argument of issubdtype from `float` to `np.floating` is
deprecated. In future, it will be treated as `np.float64 == np.dtype(float).type
`.
  from ._conv import register_converters as _register_converters
Traceback (most recent call last):
  File "chan_ests_to_HDF5.py", line 57, in <module>
    log_np = log_util.log_data_to_np_arrays(log_data, log_index_rx)
  File "C:\work\Python_Reference\wlan_exp\log\util.py", line 427, in log_data_to
_np_arrays
    entries_nd[k] = k.generate_numpy_array(log_data, log_index[k])
  File "C:\work\Python_Reference\wlan_exp\log\entry_types.py", line 256, in gene
rate_numpy_array
    np_arr = np.fromiter(index_iter, self.fields_np_dt, len(byte_offsets))
ValueError: invalid literal for int() with base 10: b'\xfa0\x01\x00\x00\x00\x00\
x00`\x14\x94\x05\x00H\x0b\x00\x03\x02\x00\xac\x14\x08\x01\x00uH\xc0\x00\x00\x00\
x00\x00\xc3\xf43\xdct\x11%\xd0c\x1d\r\xe0\x17"\xf3\xf4\xec"\xf2\x03\r\x1e\xbd*F\
r\xf40\xe5\x

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#19 2018-Sep-19 09:55:55

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4964

Re: 802.11 reference design

np_arr = np.fromiter(index_iter, self.fields_np_dt, len(byte_offsets))
ValueError: invalid literal for int() with base 10:

This is a known issue with the latest version of numpy - please see this post.

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#20 2018-Sep-20 06:00:41

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

murphpo wrote:

np_arr = np.fromiter(index_iter, self.fields_np_dt, len(byte_offsets))
ValueError: invalid literal for int() with base 10:

This is a known issue with the latest version of numpy - please see this post.

This issue was solved but when i run ofdm_chan_est_viewer.m all received entries are FCS bad entries(100%) and i am unable to get magnitude plot also how to resolve these?

Last edited by Bobbili Vinitha (2018-Sep-20 06:05:39)

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#21 2018-Sep-20 06:12:20

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

I executed log_capture_two_node_two_flow.py several times to check whether the no of receptions from node changing every time or not then after some time i got following error how to resolve it?

(base) C:\work\Python_Reference\examples\chan_est_viewer>python chan_ests_to_HDF
5.py sta_two_node_two_flow_capture.hdf5
Reading log file 'sta_two_node_two_flow_capture.hdf5' (  0.4 MB)

WLAN Exp Log Example: OFDM Rx Entry Exporter
C:\ProgramData\Anaconda3\lib\site-packages\h5py\__init__.py:36: FutureWarning: C
onversion of the second argument of issubdtype from `float` to `np.floating` is
deprecated. In future, it will be treated as `np.float64 == np.dtype(float).type
`.
  from ._conv import register_converters as _register_converters
Traceback (most recent call last):
  File "chan_ests_to_HDF5.py", line 73, in <module>
    most_rx = max(num_rx)
ValueError: max() arg is an empty sequence

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#22 2018-Sep-20 14:54:35

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4964

Re: 802.11 reference design

Code:

Traceback (most recent call last):
  File "chan_ests_to_HDF5.py", line 73, in <module>
    most_rx = max(num_rx)
ValueError: max() arg is an empty sequence

The error is clear - the 'num_rx' variable is empty in your code, so 'max(num_rx)' can't do anything. Those log processing example scripts assume you start with a log file that contains a nonzero number of receptions.

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#23 2018-Sep-22 12:36:31

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

Bobbili Vinitha wrote:

murphpo wrote:

np_arr = np.fromiter(index_iter, self.fields_np_dt, len(byte_offsets))
ValueError: invalid literal for int() with base 10:

This is a known issue with the latest version of numpy - please see this post.

This issue was solved but when i run ofdm_chan_est_viewer.m all received entries are FCS bad entries(100%) and i am unable to get magnitude plot also how to resolve these?

How to resolve this?

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#24 2018-Sep-24 09:11:35

chunter
Administrator
From: Mango Communications
Registered: 2006-Aug-24
Posts: 1184

Re: 802.11 reference design

Bobbili Vinitha wrote:

This issue was solved but when i run ofdm_chan_est_viewer.m all received entries are FCS bad entries(100%)

Independent of the channel viewer, you should verify that your hardware does receive good FCS packets. If you are able to run the AP demo and successfully connect to it with another Wi-Fi device, then it's clearly able to receive good FCS packets. From there you'll need to move back to the channel viewer example and try to track down why you are not seeing any good FCS entries.

Bobbili Vinitha wrote:

and i am unable to get magnitude plot also how to resolve these?

You haven't given us enough information to help you. You need to clarify what "unable to get magnitude plot" means.

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#25 2018-Oct-04 06:20:05

Bobbili Vinitha
Member
Registered: 2018-Jun-26
Posts: 19

Re: 802.11 reference design

is it possible to add a new block before ifft block in ofdm transmitter(wlan_phy_tx_pmd) in 802.11 reference design?

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