Mesa 7i95

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07 Jul 2020 18:42 #173890 by trial31
Replied by trial31 on topic Mesa 7i95
Latency test is aprox 5000 ns max jitter. using firefox playing youtube videos while i use the pc normally.

The power supply is from an old pc. I tryed with 2 different but tomorrow i will search something "smaller". What is the max voltage that the mesa card accept? is written 5v, but 6 will already kill the board?

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07 Jul 2020 18:49 #173891 by PCW
Replied by PCW on topic Mesa 7i95
It should be 5V +-5%
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09 Jul 2020 08:52 #174077 by trial31
Replied by trial31 on topic Mesa 7i95
Hi,
I have done some test with 3 different types of power supply but always same problems. I dont'think that is the problem...

I tryed also to take out the second network card (that normally use for internet) but no improvement.

What is strange is that sometimes the card have the right structure (with inmux) , athers times don't have the inmux.

always i become the error finihing read after some times (i tryed also tu put servoperiod = 2000000 (2ms) but not really better..

Can you give me the original mesa 7i95 bitfile (6 encoder/6 stepgen/ 6 output/ 23 input without doughter card connected) ? I would like to check if there is the right one bitfile on the board..(on www.mesanet.com/ there is no 7i95 file... :blink: )

there is also other things that i can do on network delays?
Thnk you

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09 Jul 2020 09:43 #174079 by tommylight
Replied by tommylight on topic Mesa 7i95
What PC?
Run a latency test and post a screenshot of it
latency-histogram --nobase --sbinsize 1000 --show

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09 Jul 2020 12:26 #174083 by trial31
Replied by trial31 on topic Mesa 7i95
Hi, there is the latency test.
There is a command to exactly see the data of PC you need?
It is a pentium D 2.8Ghz with

that the info in /sys/devices/virtual/dmi/id/
bios_date 03/12/2007
bios_vendor Phoenix Technologies, LTD
bios_version ASUS P5NSLI ACPI BIOS Revision 1104
board_asset_tag 
board_name P5NSLI
board_serial ***_Unavailable_***
board_vendor ASUSTeK Computer INC.
board_version 1.XX    
chassis_asset_tag 123456789000
chassis_serial ***_Unavailable_***
chassis_type 3
chassis_vendor Chassis Manufacture
chassis_version Chassis Version
modalias dmi:bvnPhoenixTechnologies,LTD:bvrASUSP5NSLIACPIBIOSRevision1104:bd03/12/2007:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5NSLI:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion:
power ***_Unavailable_***
product_family ***_Unavailable_***
product_name System Product Name
product_serial ***_Unavailable_***
product_uuid ***_Unavailable_***
product_version System Version
subsystem ***_Unavailable_***
sys_vendor System manufacturer
uevent MODALIAS=dmi:bvnPhoenixTechnologies,LTD:bvrASUSP5NSLIACPIBIOSRevision1104:bd03/12/2007:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5NSLI:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion:

and lscpu
Architecture:          i686
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                2
On-line CPU(s) list:   0,1
Thread(s) per core:    1
Core(s) per socket:    2
Socket(s):             1
Vendor ID:             GenuineIntel
CPU family:            15
Model:                 4
Model name:            Intel(R) Pentium(R) D CPU 2.80GHz
Stepping:              7
CPU MHz:               2800.063
BogoMIPS:              5600.12
L1d cache:             16K
L2 cache:              1024K
Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl cid cx16 xtpr lahf_lm
Attachments:

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09 Jul 2020 12:36 #174084 by tommylight
Replied by tommylight on topic Mesa 7i95
The PC seems good and latency is very good, but that bring the next question:
what does
uname -a
say ?

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09 Jul 2020 12:41 #174086 by trial31
Replied by trial31 on topic Mesa 7i95
unsame -a:

Linux MacchinaInfernale 4.9.0-12-rt-686-pae #1 SMP PREEMPT RT Debian 4.9.210-1+deb9u1 (2020-06-07) i686 GNU/Linux

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09 Jul 2020 13:32 #174090 by PCW
Replied by PCW on topic Mesa 7i95
That all looks OK, so it might be a hardware issue on the 7I95,
What Ethernet chip is used on the host PC?

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09 Jul 2020 13:52 #174091 by trial31
Replied by trial31 on topic Mesa 7i95
Ethernet card are:
06:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter (rev 10)
06:0c.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller (rev 13)

can you give me the original 7i95 bitfile? I will try to check the firmware and if necessary to flash it new

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09 Jul 2020 14:42 #174094 by PCW
Replied by PCW on topic Mesa 7i95
There actually is only one 7I95 user bitfile currently (the one thats pre-loaded in to 7I95 cards)

I would probably distrust the Marvell MAC for real time but the Realtek should be OK
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