Scope differential clock

Hello,
I am working with Vivado 2015.1 and a ZC706 board. I want to scope the differential clock that comes as input to pins W8 (SMA_MGT_REFCLK_P) and W7 (SMA_MGT_REFCLK_N).
I have contstrained the pins as follows in the xdc file:
set_property PACKAGE_PIN W8 [get_ports {mgt_ref_clk_clk_p}]
set_property PACKAGE_PIN W7 [get_ports {mgt_ref_clk_clk_n}]
create_clock -period 6.400 -name TS_MGT_REF_CLK [get_ports {mgt_ref_clk_clk_p}]
In order to scope the clock, I have added a 1-bit counter to the block diagram that will be clocked by the mgt_ref_clk. This is a part of my block design in Vivado:
The "mgt_ref_clk" is an "interface port" of type "xilinx.com:interface:diff_clock_rtl:1.0":
My problem is that I can not understand how to connect the "mgt_ref_clk" port to the utility buffer in order to create a single-ended clock that will be connected to the counter.
EDIT1: I tried the following connections (create simple input ports as clock signals):
However Vivado reports the following error:
[Vivado 12-1411] Cannot set LOC property of ports, Illegal to place instance base_zynq_design_i/util_ds_buf_2/U0/USE_IBUFDS.GEN_IBUFDS[0].IBUFDS_I on site W8. The location site type does not match the instance type. ["C:/Work/AXIOM/WorkingDirectory/axi_dma_fifo/project_1.srcs/constrs_1/new/base_zynq_design_wrapper.xdc":15]
 What does it mean "The location site type does not match the instance type"?
Thanks,
Dimitris
 

Hello Austin,
Thanks for your reply. Since I am using the Aurora core, I will try to debug it.
In the Aurora v10.0 manual (page 74, chapter 4), I saw that there is an option called "Vivado lab tools":
However, when I try to configure my Aurora core, I get this window that is missing this option (!):
I tried to scroll down, mark other options in case it appears, but nothing. Do you know if this is a bug or am I missing something?
Thanks,
Dimitris
 

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          Registered Address/Control Inputs                 Not Supported
          On-Card PLL (Clock)                               Not Supported
          Buffered DQMB Inputs                              Not Supported
          Registered DQMB Inputs                            Not Supported
          Differential Clock Input                          Supported
          Redundant Row Address                             Not Supported
      [ DIMM2: 1 GB PC3200 DDR SDRAM ]
        Memory Module Properties:
          Serial Number                                     None
          Module Size                                       1024 MB (1 rank, 4 banks)
          Module Type                                       Unbuffered
          Memory Type                                       DDR SDRAM
          Memory Speed                                      PC3200 (200 MHz)
          Module Width                                      64 bit
          Module Voltage                                    SSTL 2.5
          Error Detection Method                            None
          Refresh Rate                                      Reduced (7.8 us), Self-Refresh
        Memory Timings:
          @ 200 MHz                                         3.0-3-3-8  (CL-RCD-RP-RAS)
          @ 166 MHz                                         2.5-3-3-7  (CL-RCD-RP-RAS)
          @ 133 MHz                                         2.0-2-2-6  (CL-RCD-RP-RAS)
        Memory Module Features:
          Early RAS# Precharge                              Not Supported
          Auto-Precharge                                    Not Supported
          Precharge All                                     Not Supported
          Write1/Read Burst                                 Not Supported
          Buffered Address/Control Inputs                   Not Supported
          Registered Address/Control Inputs                 Not Supported
          On-Card PLL (Clock)                               Not Supported
          Buffered DQMB Inputs                              Not Supported
          Registered DQMB Inputs                            Not Supported
          Differential Clock Input                          Supported
          Redundant Row Address                             Not Supported
    I try knocking down the multiplier to 12 and setting the FSB to 166 but the computer will not start and i have to clear CMOS to start over again. Any help at all would greatly be appreciated.

  • No videosignal after putting 200 FSB

    I wanted to o/c my athlon xp 2600+ to 11.5x200. But when i did save and exited bios everything  booted even my gpu... i heard the fan starting to spin  
    but no videosignal ... i mean my screen keeps standing on standby so i was like hmmm maybe its the psu so i toke off the fan my hdd/dvd/cd still no signal so is it the RAM or ? ram info below... right out of aida32
    Module Name                   Kingston K
    Serial Number                   702C2100h
    Module Size                   512 MB (2 rows, 4 banks)
    Module Type                   Unbuffered
    Memory Type                   DDR SDRAM
    Memory Speed                   PC3200 (200 MHz)
    Module Width                   64 bit
    Module Voltage                   SSTL 2.5
    Error Detection Method   None
    Refresh Rate                   Reduced (7.8 us), Self-Refresh
    Highest CAS Latency                   3.0 (5.0 ns @ 200 MHz)
    2nd Highest CAS Latency   2.5 (6.0 ns @ 166 MHz)
    Memory Module Features   
    Early RAS# Precharge                   Not Supported
    Auto-Precharge                                   Not Supported
    Precharge All                                   Not Supported
    Write1/Read Burst                                   Not Supported
    Buffered Address/Control Inputs                   Not Supported
    Registered Address/Control Inputs   Not Supported
    On-Card PLL (Clock)                                   Not Supported
    Buffered DQMB Inputs                   Not Supported
    Registered DQMB Inputs                   Not Supported
    Differential Clock Input                   Supported
    Redundant Row Address                   Not Supported

    ^_^   hehe well lets say if you give me the €100+ ill get an enermax  
    not really a big choice to pay €100 and get 350 W  
    btw temps r 51C after playing battlefield 1942 for a h or 2-3 40C-45C when idle surfing listing music that kind of stuff

  • AXI Ethernet Subsystem - PHY out of reset

    Hi all,
    I have been trying to use the AXI Ethernet Subsystem in the Mini ITX board (xc7z100ffg900-2) but I fail to take the internal PHY out of reset.
    The Ethernet Subsystem is connected to a FIFO which is responsible for the block reset. I'm running the FIFO Interrupt Example that comes with the IP driver. The code gets stuck when checking for the MgtRdy bit. This seems to be because the on-chip PHY is not out of reset, since the PhyRstCmplt bit is also low.
    The MGT_CLK interface is connected to the board VCO which is set up to generate a 125 MHz differential clock. The block is also connected to the board SFP.
    In previous designs when I did not have a PHY (loopback setup using the MII/GMII interface) the core would work fine. This problem only came up when I instantiate the on-chip PHY. I tried using Vivado 2014.2 (1000BASE-X PCS/PMA) and Vivado 2015.1 (1G/2.5G Ethernet PCS/PMA) and no success in both cases.
    Have anyone had a similar issue?
    Is there any way to check if the VCO output is correct?
    Thanks
     

    Update: Phy is out of reset now but MgtRdy is still low. ISR reads 0x140.
    What could be the reasons MgtRdy does not go high?

  • 845e ht ready and pc 2100 200/266 mhz 256 mb memmory module(s)

    Hi all i am experiencing this problem on all my mainboards as described in the title, here it is:
    Bios recognizes only 128 Mb of Ram no matter if they are 1 or 2 (same kind of modules), i tried BIOS update too.
    The weird thing it's that it's happening on all my mainboards of this kind but when i'm trying the same memory modules on MSI VIA chipset based mainboards it all works fine.
    Thank you in advance for your replies

    motherboard is MS-65663 ver 2
    Here is the report generated by AIDA, i cutted off the stuff about the OS because it is too long if you need it i will post it in the reply if asked:
    --------[ AIDA32 (c) 1995-2004 Tamas Miklos ]---------------------------------------------------------------------------
        Version                                           AIDA32 v3.93
        Author                                            [email protected]
        Homepage                                          http://www.aida32.hu
        Report Type                                       Report Wizard
        Computer                                          MARIUS
        Generator                                         M
        Operating System                                  Microsoft Windows XP Professional 5.1.2600 (WinXP Retail)
        Date                                              2004-03-18
        Time                                              01:06
    --------[ Summary ]-----------------------------------------------------------------------------------------------------
        Computer:
          Operating System                                  Microsoft Windows XP Professional
          OS Service Pack                                   None
          Internet Explorer                                 6.0.2600.0000 (IE 6.0 - Windows XP)
          Computer Name                                     MARIUS
          User Name                                         M
          Logon Domain                                      MARIUS
        Motherboard:
          CPU Type                                          Intel Celeron 4A, 2400 MHz (6 x 400)
          Motherboard Name                                  MSI 845E Max (MS-6566E)  (6 PCI, 1 AGP, 1 CNR, 2 DIMM)
          Motherboard Chipset                               Intel Brookdale i845E
          System Memory                                     128 MB  (PC2100 DDR SDRAM)
          BIOS Type                                         AMI (09/01/03)
          Communication Port                                Communications Port (COM1)
          Communication Port                                Communications Port (COM2)
          Communication Port                                ECP Printer Port (LPT1)
        Display:
          Video Adapter                                     Inno3D GeForce4 MX 440 with AGP8X  (64 MB)
          3D Accelerator                                    nVIDIA GeForce4 MX 440 with AGP8X
        Multimedia:
          Audio Adapter                                     Intel 82801DB(M) ICH4(-M) - AC'97 Audio Controller [B-0]
        Storage:
          Floppy Drive                                      Floppy disk drive
          Disk Drive                                        SAMSUNG SP0401N
          Optical Drive                                     SONY CD-RW  CRX230E
        Partitions:
          C: (FAT32)                                        4994 MB (3712 MB free)
          D: (FAT32)                                        33188 MB (10932 MB free)
        Input:
          Keyboard                                          Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
          Mouse                                             PS/2 Compatible Mouse
        Network:
          Primary IP Address                                217.10.212.188
          Primary MAC Address                               00-10-4B-6A-16-1D
          Network Adapter                                   3Com EtherLink XL 10/100 PCI TX NIC (3C905B-TX)  (217.10.212.188)
    --------[ DMI ]---------------------------------------------------------------------------------------------------------
      [ BIOS ]
        BIOS Properties:
          Vendor                                            American Megatrends Inc.
          Version                                           07.00T
          Release Date                                      04/02/01
          Size                                              512 KB
          Boot Devices                                      Floppy Disk, Hard Disk, CD-ROM, ATAPI ZIP, LS-120
          Capabilities                                      Flash BIOS, Shadow BIOS, Selectable Boot, EDD, BBS
          Supported Standards                               DMI, APM, ACPI, ESCD, PnP
          Expansion Capabilities                            ISA, PCI, AGP, USB
      [ System ]
        System Properties:
          Manufacturer                                      Micro-Star Inc.
          Product                                           MS-6566E
          Version                                           1.0
          Serial Number                                     00000000
          Wake-Up Type                                      Modem Ring
      [ Motherboard ]
        Motherboard Properties:
          Manufacturer                                      Micro-Star Inc.
          Product                                           MS-6566E
          Version                                           1.0
          Serial Number                                     00000000
      [ Chassis ]
        Chassis Properties:
          Manufacturer                                      Uknown Chassis Manufacture
          Version                                           Version 1.00
          Serial Number                                     123456890
          Asset Tag                                         0123ABC
          Chassis Type                                      Desktop Case
      [ Memory Controller ]
        Memory Controller Properties:
          Error Detection Method                            None
          Supported Memory Interleave                       1-Way
          Current Memory Interleave                         1-Way
          Supported Memory Types                            DIMM, SDRAM
          Supported Memory Voltages                         3.3V
          Maximum Memory Module Size                        1024 MB
          Memory Slots                                      2
      [ Processors / Intel(R) Pentium(R) 4 Processor ]
        Processor Properties:
          Manufacturer                                      Intel
          Version                                           Intel(R) Pentium(R) 4 Processor
          External Clock                                    100 MHz
          Maximum Clock                                     3000 MHz
          Current Clock                                     2400 MHz
          Type                                              Central Processor
          Voltage                                           3.3 V, 2.9 V
          Status                                            Enabled
          Socket Designation                                FC-478
      [ Caches / Internal Cache ]
        Cache Properties:
          Type                                              Internal
          Speed                                             40 ns
          Status                                            Enabled
          Operational Mode                                  Write-Back
          Associativity                                     4-way Set-Associative
          Maximum Size                                      1024 KB
          Installed Size                                    8 KB
          Supported SRAM Type                               Synchronous
          Current SRAM Type                                 Synchronous, Pipeline Burst
          Error Correction                                  Single-bit ECC
          Socket Designation                                Internal Cache
      [ Caches / Internal Cache ]
        Cache Properties:
          Type                                              Internal
          Speed                                             40 ns
          Status                                            Enabled
          Operational Mode                                  Write-Back
          Maximum Size                                      1024 KB
          Installed Size                                    128 KB
          Supported SRAM Type                               Synchronous
          Current SRAM Type                                 Synchronous
          Error Correction                                  Parity
          Socket Designation                                Internal Cache
      [ Memory Modules / DIMM1 ]
        Memory Module Properties:
          Socket Designation                                DIMM1
          Type                                              DIMM, SDRAM
          Installed Size                                    512 MB
          Enabled Size                                      512 MB
      [ Memory Modules / DIMM2 ]
        Memory Module Properties:
          Socket Designation                                DIMM2
          Installed Size                                    Not Installed
          Enabled Size                                      Not Installed
      [ System Slots / PCI1 ]
        System Slot Properties:
          Slot Designation                                  PCI1
          Type                                              PCI
          Usage                                             Empty
          Data Bus Width                                    32-bit
          Length                                            Long
      [ System Slots / PCI2 ]
        System Slot Properties:
          Slot Designation                                  PCI2
          Type                                              PCI
          Usage                                             In Use
          Data Bus Width                                    32-bit
          Length                                            Long
      [ System Slots / PCI3 ]
        System Slot Properties:
          Slot Designation                                  PCI3
          Type                                              PCI
          Usage                                             Empty
          Data Bus Width                                    32-bit
          Length                                            Long
      [ System Slots / PCI4 ]
        System Slot Properties:
          Slot Designation                                  PCI4
          Type                                              PCI
          Usage                                             Empty
          Data Bus Width                                    32-bit
          Length                                            Long
      [ System Slots / PCI5 ]
        System Slot Properties:
          Slot Designation                                  PCI5
          Type                                              PCI
          Usage                                             Empty
          Data Bus Width                                    32-bit
          Length                                            Long
      [ System Slots / PCI6 ]
        System Slot Properties:
          Slot Designation                                  PCI6
          Type                                              PCI
          Usage                                             Empty
          Data Bus Width                                    32-bit
          Length                                            Long
      [ System Slots / AGP ]
        System Slot Properties:
          Slot Designation                                  AGP
          Type                                              PCI
          Usage                                             Empty
          Data Bus Width                                    32-bit
          Length                                            Long
      [ System Slots / CNR ]
        System Slot Properties:
          Slot Designation                                  CNR
          Type                                              PCI
          Usage                                             Empty
          Data Bus Width                                    32-bit
          Length                                            Long
      [ Port Connectors / Def ]
        Port Connector Properties:
          Port Type                                         SSA SCSI
          Internal Reference Designator                     USB
          Internal Connector Type                           Mini-Centronics
          External Reference Designator                     Def
          External Connector Type                           DB-25 pin male
    --------[ Sensor ]------------------------------------------------------------------------------------------------------
        Sensor Properties:
          Sensor Type                                       Winbond W83627HF
          Sensor Access                                     ISA 290h
        Temperatures:
          Motherboard                                       24 °C  (75 °F)
          CPU                                               20 °C  (68 °F)
        Cooling Fans:
          CPU                                               2596 RPM
        Voltage Values:
          CPU Core                                          1.49 V
          CPU Aux                                           1.82 V
          +3.3 V                                            3.26 V
          +5 V                                              5.19 V
          +12 V                                             11.98 V
          -12 V                                             -12.36 V
          -5 V                                              -5.25 V
          +5 V Standby                                      5.04 V
          VBAT Battery                                      3.09 V
          Debug Info                                        5D 72 CC C1 C5 1F 31 18 FF FF 41 64 (01)
    --------[ CPU ]---------------------------------------------------------------------------------------------------------
        CPU Properties:
          CPU Type                                          Intel Celeron 4A, 2400 MHz (6 x 400)
          CPU Alias                                         Northwood-128
          CPU Stepping                                      D1
          Original Clock                                    2400 MHz
          L1 Trace Cache                                    12K Instructions
          L1 Data Cache                                     8 KB
          L2 Cache                                          128 KB (On-Die, ATC, Full-Speed)
        CPU Physical Info:
          Package Type                                      478 Pin uPGA
          Package Size                                      3.50 cm x 3.50 cm
          Transistors                                       55 million
          Process Technology                                6M, 0.13 um, CMOS, Cu, Low-K
          Die Size                                          131 mm2
          Core Voltage                                      1.475 - 1.55 V
          I/O Voltage                                       1.475 - 1.55 V
          Typical Power                                     38.7 - 82 W  (depending on clock speed)
          Maximum Power                                     49 - 103 W  (depending on clock speed)
        CPU Manufacturer:
          Company Name                                      Intel Corporation
          Product Information                               http://www.intel.com/products/browse/processor.htm
        CPU Utilization:
          CPU #1                                            100 %
    --------[ CPUID ]-------------------------------------------------------------------------------------------------------
        CPUID Properties:
          CPUID Manufacturer                                GenuineIntel
          CPUID CPU Name                                    Intel(R) Celeron(R) CPU 2.40GHz
          CPUID Revision                                    0F29h
          IA Brand ID                                       0Ah (Intel Celeron 4)
          Platform ID                                       0Fh (Socket 478)
          IA CPU Serial Number                              Unknown
        Instruction Set:
          AMD 3DNow!                                        Not Supported
          AMD 3DNow! Professional                           Not Supported
          AMD Enhanced 3DNow!                               Not Supported
          AMD Extended MMX                                  Not Supported
          AMD64                                             Not Supported
          Cyrix Extended MMX                                Not Supported
          IA-64                                             Not Supported
          IA MMX                                            Supported
          IA SSE                                            Supported
          IA SSE 2                                          Supported
          IA SSE 3                                          Not Supported
          CLFLUSH Instruction                               Supported
          CMPXCHG8B Instruction                             Supported
          CMPXCHG16B Instruction                            Not Supported
          Conditional Move Instruction                      Supported
          FEMMS Instruction                                 Not Supported
          MONITOR / MWAIT Instruction                       Not Supported
        CPUID Features:
          36-bit Page Size Extension                        Supported
          Advanced Cryptography Engine                      Not Supported
          Alternate Instruction Set                         Not Supported
          Automatic Clock Control                           Supported
          CPL Qualified Debug Store                         Not Supported
          Debug Trace Store                                 Supported
          Debugging Extension                               Supported
          Enhanced SpeedStep Technology                     Not Supported
          Fast Save & Restore                               Supported
          Fast System Call                                  Supported
          Hyper-Threading Technology                        Not Supported
          L1 Context ID                                     Supported
          Local APIC On Chip                                Supported
          LongRun                                           Not Supported
          LongRun Table Interface                           Not Supported
          Machine-Check Architecture                        Supported
          Machine-Check Exception                           Supported
          Memory Type Range Registers                       Supported
          Model Specific Registers                          Supported
          No-Execute Page Protection                        Not Supported
          Page Attribute Table                              Supported
          Page Global Extension                             Supported
          Page Size Extension                               Supported
          Pending Break Event                               Supported
          Physical Address Extension                        Supported
          Processor Duty Cycle Control                      Supported
          Processor Serial Number                           Not Supported
          Random Number Generator                           Not Supported
          Self-Snoop                                        Supported
          Thermal Monitor                                   Supported
          Thermal Monitor 2                                 Not Supported
          Time Stamp Counter                                Supported
          Virtual Mode Extension                            Supported
        CPUID Registers:
          CPUID 00000000                                    00000002-756E6547-6C65746E-49656E69
          CPUID 00000001                                    00000F29-0001080A-00004400-BFEBFBFF
          CPUID 00000002                                    665B5101-00000000-00000000-003B7040
          CPUID 80000000                                    80000004-00000000-00000000-00000000
          CPUID 80000001                                    00000000-00000000-00000000-00000000
          CPUID 80000002                                    20202020-20202020-20202020-20202020
          CPUID 80000003                                    65746E49-2952286C-6C654320-6E6F7265
          CPUID 80000004                                    20295228-20555043-30342E32-007A4847
          MSR 00000017                                      000A-0000-0000-0000
          MSR 0000002C                                      0000-0000-1810-0018
    --------[ Motherboard ]-------------------------------------------------------------------------------------------------
        Motherboard Properties:
          Motherboard ID                                    62-5900-001169-00101111-040201-I845E$16566E00A6566IMS V5.9 090103
          Motherboard Name                                  MSI 845E Max (MS-6566E)
        Front Side Bus Properties:
          Bus Type                                          Intel NetBurst
          Bus Width                                         64-bit
          Real Clock                                        100 MHz (QDR)
          Effective Clock                                   400 MHz
          Bandwidth                                         3200 MB/s
        Memory Bus Properties:
          Bus Type                                          DDR SDRAM
          Bus Width                                         64-bit
          Real Clock                                        133 MHz (DDR)
          Effective Clock                                   267 MHz
          Bandwidth                                         2133 MB/s
        Chipset Bus Properties:
          Bus Type                                          Intel Hub Interface
          Bus Width                                         8-bit
          Real Clock                                        67 MHz (QDR)
          Effective Clock                                   267 MHz
          Bandwidth                                         267 MB/s
        Motherboard Physical Info:
          CPU Sockets/Slots                                 1
          Expansion Slots                                   6 PCI, 1 AGP, 1 CNR
          RAM Slots                                         2 DIMM
          Form Factor                                       ATX
          Motherboard Size                                  200 mm x 300 mm
          Motherboard Chipset                               i845E
          Extra Features                                    Fuzzy Logic 4
        Motherboard Manufacturer:
          Company Name                                      Micro-Star International
          Product Information                               http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_list.php
          BIOS Download                                     http://www.msi.com.tw/program/support/bios/bos/spt_bos_list.php
    --------[ Memory ]------------------------------------------------------------------------------------------------------
        Physical Memory:
          Total                                             127 MB
          Used                                              75 MB
          Free                                              51 MB
          Utilization                                       59 %
        Swap Space:
          Total                                             307 MB
          Used                                              144 MB
          Free                                              163 MB
          Utilization                                       47 %
        Virtual Memory:
          Total                                             435 MB
          Used                                              220 MB
          Free                                              215 MB
          Utilization                                       51 %
        Problems & Suggestions:
          Suggestion                                        Install more system memory to improve applications performance.
    --------[ SPD ]---------------------------------------------------------------------------------------------------------
      [ 256 MB PC2100 DDR SDRAM ]
        Memory Module Properties:
          Serial Number                                     00303430h
          Module Size                                       256 MB (1 rows, 4 banks)
          Module Type                                       Unbuffered
          Memory Type                                       DDR SDRAM
          Memory Speed                                      PC2100 (133 MHz)
          Module Width                                      64 bit
          Module Voltage                                    SSTL 2.5
          Error Detection Method                            None
          Refresh Rate                                      Normal (15.625 us), Self-Refresh
          Highest CAS Latency                               2.5 (7.5 ns @ 133 MHz)
          2nd Highest CAS Latency                           2.0 (10.0 ns @ 100 MHz)
        Memory Module Features:
          Early RAS# Precharge                              Not Supported
          Auto-Precharge                                    Not Supported
          Precharge All                                     Not Supported
          Write1/Read Burst                                 Not Supported
          Buffered Address/Control Inputs                   Not Supported
          Registered Address/Control Inputs                 Not Supported
          On-Card PLL (Clock)                               Not Supported
          Buffered DQMB Inputs                              Not Supported
          Registered DQMB Inputs                            Not Supported
          Differential Clock Input                          Supported
          Redundant Row Address                             Not Supported
    --------[ Chipset ]-----------------------------------------------------------------------------------------------------
        Chipset Properties:
          Motherboard Chipset                               Intel Brookdale i845E
          In-Order Queue Depth                              12
          CAS Latency                                       2.5T
          RAS To CAS Delay                                  3T
          RAS Precharge                                     3T
          RAS Active Time                                   6T
        AC'97 Audio Controller:
          Audio Controller Type                             Intel 82801DB(M) ICH4
          Codec Name                                        Avance Logic ALC655/ALC850
          Codec ID                                          414C4760h
        Memory Slots:
          DRAM Slot #1                                      512 MB (PC2100 DDR SDRAM)
        AGP Properties:
          AGP Version                                       2.00
          AGP Status                                        Enabled
          AGP Aperture Size                                 64 MB
          Supported AGP Speeds                              1x, 2x, 4x
          Current AGP Speed                                 4x
          Fast-Write                                        Supported, Enabled
          Side Band Addressing                              Supported, Enabled
        Chipset Manufacturer:
          Company Name                                      Intel Corporation
          Product Information                               http://www.intel.com/products/browse/chipsets.htm
          Driver Download                                   http://support.intel.com/support/chipsets/index.htm
        Problems & Suggestions:
          Problem                                           AGP aperture size is more than half of the system memory size. This may cause performance penalty.
    --------[ BIOS ]--------------------------------------------------------------------------------------------------------
        BIOS Properties:
          BIOS Type                                         AMI
          System BIOS Date                                  09/01/03
          Video BIOS Date                                   08/18/03
        BIOS Manufacturer:
          Company Name                                      American Megatrends Inc.
          Product Information                               http://www.ami.com/amibios

  • IdeaCenter B305 "DQS training failed" message on startup

    I have a IdeaCentre B305 40312CY, suddenly it began giving a message:
    "DQS training failed on previous boot, reverted to slower DRAM speed
    Press F1 to enter Setup, F2 to resume"
    Now the problem is that if I press F1, first an "Entering Setup" message then a "WAIT..." message appears on the middle of the screen and nothing more happens.
    If I press F2 the HD is detected, then a "CMOS Battery Low" message and then again "Press F1 to Run Setup" "Press F2 lo load default values an continue". Let say that here F1 gives de same WAIT... message as before and with F2 a column of "H" appear on the left side of the screen.
    I test the CMOS battery and it was OK, even though I change it with a new one with no results. I also tried to reset de CMOS with the motherboard jumper but nothing happens.
    Does the computer have a problem with the BIOS ? What can I do ? The computer is already out of warranty.
    Please Help !!!

    hi xpeed,
    Welcome to the Forums.
    As per these articles:
    http://wiki.answers.com/Q/What_is_DQS_in_ddr3_sdram#slide3
    "When the data is read from the DRAM using the DQ pins, DQS (Data Strobe) is asserted so that the memory controller can use that to read data."
    http://www.latticesemi.com/lit/docs/generalinfo/memory_ddr_interface_wp.pdf
    "DDR SDRAM interfaces rely on the use of a data strobe signal called DQS. DQS is generated from the differential
    clock fed to the DDR memory and a DLL inside the DDR memory used to generate and align DQS to outgoing data."
    The "DQS training failed" that your getting is somehow related to the memory timings on how data is written to the DRAM and on how the data is read by the memory controller. It's possible that the RAM, the CPU's memory controller or the memory controller in the Northbridge is having issues. Have you tried to reseat or change the RAM?
    The "CMOS Battery Low" message might indicate an imminent failure on the CMOS Battery but since you already changed it, are you still getting the "CMOS battery low" error when pressing F1 to go to the BIOS? If not then you may need to isolate the DQS error above.
    Regards
    Did someone help you today? Press the star on the left to thank them with a Kudo!
    If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
    Follow @LenovoForums on Twitter!

  • IO fails working for low frequency, but work well for higher frequency

    On our customized VU440 board, we did a IO performance test for each bank and found a strange problem, in the design,we send out 24bits Pseudo random data and loop back this data to the same bank with our testing board, on which the pins for tx and rx are only connected in short circuit, one differential clock is transfered to single-ended global clock in the design, using IBUFDS+BUFG to provide the global clock for tx module and rx module.
    howeve, we use vivado debug tool to check the data looped back, only found when the clock is 200MHz around, the data is correct, but if fails to get correct data when the clock is much lower, for example, 10MHz ~100MHz. And from the waveform we got, we identified the status for some pin was un-normal when the data bus failed to get correct data.
    we have found the problematic IO pins, but did not know why the problem come out, normally, we think it's normal for the IO pins fail to work when the frequency is too high, but in our case, the issue is on the contrary, we don't understand why it works for some higher frequency but fail to run when it's much lower.
    we now try to check our PCB also, but have no clue at present. 
    Some guys have any idea or suggestion to check for the reason?
    thx~

    Hi,
    What is the IO standard that you selected for the TX and the RX. How long is the loopback cable?
    Do you have proper terminations on the board? Because in general, all IO Standards need some terminations which are mentioned in the respective SelectIO user Guide for that device. Please check that.

  • Is the bit file the programming file?

    Hi all
    I have a design that came to me as part of an evaluation board from a vendor. The vendor's design has something like 10 clocks, most derived from a single input clock using PLLs and DCMs. Their UCF has very few timing constraints (shown below), but ISE finds 4 violations of constraints that Timing Analyzer must arrive at on its own. Some seem pretty serious (-5ns slack sounds like a lot to me), BUT: ISE generates a new bitfile anyway!
    Main question: Is the bitfile being generated because the failures aren't due to explicit constraints?
    (One more twist, maybe: The bitfile generator fails, and blames these timing violations, if I try to include an ILA. It also refuses to open the contraints editor until I remove the ILA from the design.  I've seen a couple of threads in this forum that gave me some ideas, so I'm going to try some things and open a separate thread if I can't resolve this myself).
    from the UCF:
    ## TIMING CONSTRAINTS
    NET "clk_100m_p" TNM_NET = "clk_100m_p";
    TIMESPEC "TS_clk_100m_p" = PERIOD "clk_100m_p" 10 ns;
    INST i_tsc_cmv12000_clocking/SRL16_inst/SRL16E TNM = TNM_SLR16;
    INST "rb1*" TNM = TNM_RB;
    TIMESPEC TS_RB = FROM TNM_SLR16 TO TNM_RB 10 ns;
    INST "i_tsc_cmv12000_clocking/SRL16_inst/SRL16E" TIG=TS_clk_100m_p;
    NET "clk_rx_p" TNM_NET = "clk_rx_p";
    TIMESPEC "TS_clk_rx_p" = PERIOD "clk_rx_p" 3.33 ns;
    'clk_100m_p' is the + side of the differential input for the clock everything else is derived from.
    'INST i_tsc_cmv12000_clocking/SRL16_inst/SRL16E TNM' refers, I think, to a DRP-controlled PLL, or to the FIFO that queues commands to it.  'rb1*' refers to the register bank that runs everything in the FPGA.
    'clk_rx_p' is the + side of a differential clock output to another component.
     

    Main question: Is the bitfile being generated because the failures aren't due to explicit constraints?
    The tools do not prevent bitfile generation due to failure to meet timing.
    The bitfile generator fails, and blames these timing violations, if I try to include an ILA
    I've never encountered that.
     

  • 875P NEO FIS2R with Corsair TwinX1024-4000

    Hi there,
    My first post, not sure if it should be here or in the Intel P4 based board forum, but we'll start here.
    System posted in signature (hopefully  )
    I've tried to read as much as possible on the compatibility issues, but cannot find anyone who has experienced quite the same thing.
    The Problem:-
    I cannot get my Corsair TwinX1024-4000 memory to run at its rated 500 MHz.  
    The main reason for this appears to be that no matter what BIOS settings I use the CAS # Latency will not go above 2.5 cycles. Consequentially, my memory will not clock above 230 MHz (DDR 460 MHz).
    I currently have the BIOS set to manually force 3-4-4-8 + 8 burst, but CPU-Z still reports 2.5-4-4-8. DOT is off, Performance mode is slow. Memory Voltage is 2.75V.
    I appreciate that the SPD configuration of these is PC3200 and therefore AIDA32 reports:-
    Quote
    Memory Module Properties   
    Module Name   Corsair CMX512-3200C2
    Serial Number   None
    Module Size   512 MB (2 rows, 4 banks)
    Module Type   Unbuffered
    Memory Type   DDR SDRAM
    Memory Speed   PC3200 (200 MHz)
    Module Width   64 bit
    Module Voltage   SSTL 2.5
    Error Detection Method   None
    Refresh Rate   Reduced (7.8 us), Self-Refresh
    Highest CAS Latency   2.5 (5.0 ns @ 200 MHz)
    2nd Highest CAS Latency   2.0 (6.0 ns @ 166 MHz)
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    Early RAS# Precharge   Not Supported
    Auto-Precharge   Not Supported
    Precharge All   Not Supported
    Write1/Read Burst   Not Supported
    Buffered Address/Control Inputs   Not Supported
    Registered Address/Control Inputs   Not Supported
    On-Card PLL (Clock)   Not Supported
    Buffered DQMB Inputs   Not Supported
    Registered DQMB Inputs   Not Supported
    Differential Clock Input   Supported
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    Product Information   http://www.corsairmicro.com/main/products.htm
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    Best Regards,
    Ed!

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                      damon69

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    Bandwidth   2133 MB/s
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    Bus Width   64-bit
    Real Clock   133 MHz (DDR)
    Effective Clock   267 MHz
    Bandwidth   2133 MB/s
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    Bus Width   32-bit
    Real Clock   33 MHz
    Effective Clock   33 MHz
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