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大家还在搜
  • 如何应用CLK和RSTn?

    through the test-bench, I simply wrote the code, and I wonder what to do when I certify the actual

    2019-04-26 14:02

  • 如何利用现成FPGA开发板进行ASIC原型开发?

    ASIC验证能够采用的主要技术是什么?如何利用现成FPGA开发板进行ASIC原型开发?

    2021-05-08 07:51

  • ASIC原型验证的实现

    原型验证---用软件的方法来发现硬件的问题 在芯片tap-out之前,通常都会计算一下风险,例如存在一些的严重错误可能性。通常要某个人签字来确认是否去生产。这是一个艰难的决定。ASIC的产品NRE的费用持续上升。一次失败的ASIC流片将会推迟数个月的上市时间。谁愿意承担签字的责任呢? 一些BUG通过仿真和Emulation是抓不到的。传统的验证方法认为设计的功能符合功能定义就是对的。 但功能定义到底对不对呢?唯一的办法就是建立一个真实的硬件:原型。

    2019-07-11 08:19

  • 想用TI的QDID为CC2540做BQB认证,请问能不能用SimpleProfile?

    本帖最后由 一只耳朵怪 于 2018-6-6 16:05 编辑 CC2540做BQB认证,想用TI的QDID,能不能用SimpleProfile?用TI已经写好的Profile的时候,能不能改特性的属性,比如说UUID,Read、Wite,还有字节之类的?有没有相关文档说明?

    2018-06-06 07:45

  • CY7C64713描述符备用设置怎么设置

    descriptor in order to pass all test required by the Windows Logo Kit and finally to certify my

    2019-03-12 10:09

  • ESXi 6.0.0上的网格K2

    我正在为VMware Horizo​​n View 6进行安装。硬件是带有Grid K2 GPU的IBM / Lenovo x3500 M4。我按照说明在主机上安装了驱动程序并重新启动但显然没有加载。当我运行vmkload-Mod -l |时grep nvidia我一无所获。当我运行nvidia-smi它说“NVIDIA-SMI失败了,因为它无法与NVIDIA驱动程序通信。请确保安装并运行最新的NVIDIA驱动程序。”我已经搜索过,而且我空洞了。任何帮助表示赞赏。布赖恩以上来自于谷歌翻译以下为原文I am working on an install for VMware Horizon View 6. The hardware is an IBM/Lenovo x3500 M4 with a Grid K2 GPU. I have installed the driver on the host as per the instructions and rebooted but it is not loading apparently. When I run vmkload-Mod -l | grep nvidia I get nothing. When I run nvidia-smi It says "NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running." I have searched and I am coming up empty. Any help is appreciated.Brian

    2018-09-05 10:25

  • 如何证明无线电设备指令(2014/53 / EU)符合SPWF01SC / SPWF04SC?

    我们设计的产品使用SPWF01SC + Sagrad天线(如数据表中所述),并考虑迁移到SPWF04SC + Sagrad天线。然而,查看数据表,两个模块仅经过EN 300 328 v1.9.1测试,而新的无线电设备指令(2014/53 / EU)似乎要求测试EN 300 328 v2.1.1标准,其中包括一个新接收器阻止测试。我们希望将Sagrad天线与SPWF04SC一起使用,因此需要使用我们的电路板和天线重复EN 300 328测试至v2.1.1。我注意到有一个'etf_mode'配置变量可用但没有关于etf_mode的不同值的工程测试函数的文档。因此,我有一些关于通过合规性测试获取产品的问题:1)etf_modes是否记录在任何地方,或者您能告诉我应该将它们设置为什么,以便根据EN 300 328测试模块?2)v2.1.1中新的接收机阻塞测试要求模块以低于10%的分组差错率执行,信号出现在与被测试信号相邻的频率上;是否可以停止接收机的跳频以进行此测试,还可以配置另一个SPWF模块在单个RF信道上向其发送数据?如果是这样,那么验证我们是否满足< = 10%PER,从一个模块向另一个模块发送大量短UDP数据包的最佳方法是什么?非常感谢,史蒂夫以上来自于谷歌翻译以下为原文 We've designed a product that uses the SPWF01SC + Sagrad antenna (as specified in the datasheet) and would like to consider migrating to the SPWF04SC + Sagrad antenna. Looking at the datasheets however, both modules have only been tested to EN 300 328 v1.9.1 whereas the new Radio Equipment Directive (2014/53/EU) appears to require testing to the EN 300 328 v2.1.1 standards which include a new receiver blocking test.We wish to use the Sagrad antenna with the SPWF04SC and so would need to repeat the EN 300 328 tests to v2.1.1 with our board and the antenna. I noticed that there's an 'etf_mode' configuration variable available but no documentation as to what the engineering test functions are for different values of etf_mode. I've therefore got a few questions about getting our product through the compliance testing:1) Are the etf_modes documented anywhere or can you tell me what they should be set to in order to test the module under EN 300 328?2) The new receiver blocking test in v2.1.1 requires that the module performs with less than a 10% packet error rate with a signal present on a frequency adjacent to the one under test; is it possible to stop the frequency hopping of the receiver for this test and also to configure another SPWF module to send data on a single RF channel to it? If so then what would be the best way to verify that we're meeting the

    2018-09-21 16:57

  • 从ST25R3911B发送APDU命令却没有任何响应

    大家好。我正在使用带有STM32-Nuceo-F410RE板的Nucelo-NFC5A1(ST25R3911B)板。(使用X-Cube-NFC5中间件RFAL)。我没有从发送到卡的APDU命令得到任何响应。 (也没有我使用的rfalIsoDep函数的错误代码)。我选择了NFC卡并将其激活。我写了一个函数将APDU命令发送到PICC。调用rfalIsoDepGetApduTransceiveStatus()直到它不再忙,我发现rxbufferLength为0。我希望即使我的APDU命令不正确,我至少应该得到0x90 0x00的响应。我已将rfalWorker()添加到我的循环中rfalIsoDepGetApduTransceiveStatus()as 我认为它是响应所必需的。另外:根据文档(rfal.chm + x-cube-nfc5.chm),rfal正在修改Txbuffer.prologue,还是我还要配置它?在任何示例中我都看不到需要配置序言。代码如下:错误=rfalIsoDepPollAHandleActivation(RFAL_COMPLIANCE_MODE_NFC_11,RFAL_ISODEP_FSXI_512,RFAL_ISODEP_NO_DID,RFAL_BR_424,&安培; isoDepDevice);if(err!= ERR_NONE)返回false;rfalIsoDepApduTxRxParam myParam;//传递给rfalIsoDepStartApduTransceive(param)的Param rfalIsoDepApduBufFormat apduCommand; //包含序言+ APDU缓冲区的结构 rfalIsoDepApduBufFormat apduResponse; //包含序言+ APDU缓冲区的结构uint8_t DDF2 [] ='2PAY.SYS.DDF01'; uint8_t headerLen = 5;uint16_tddflen = sizeof(DDF2);//设置APDU命令APDU命令.apdu [0] = 0x00; // CLA APDU命令.apdu [1] = 0xA4; // INS APDU命令.apdu [2] = 0x04; // P1 APDU命令.apdu [3] = 0x00; // P2 APDU命令.apdu [4] = ddflen - 1; // P2// INSfor(uint8_t i; i< ddflen; i ++){ APDU命令.apdu [i + headerLen] = DDF2 ; } myParam.FWT = isoDepDevice.info.FWT; myParam.dFWT = isoDepDevice.info.dFWT; myParam.FSx = RFAL_ISODEP_FSX_KEEP;//myParam.FSx = isoDepDevice.info.FSx;myParam.DID = isoDepDevice.info.DID;// RFAL_ISODEP_NO_DID myParam.ourFSx = isoDepDevice.info.FSx;myParam.txBuf =&APDU命令;myParam.rxBuf =&APDU响应;myParam.rxBufLen =& myADPURxLen; myParam.txBufLen = ddflen;错误=rfalIsoDepStartApduTransceive(myParam);for(uint8_t b = 0; b 以下为原文 Hi All. I am Using The Nucelo-NFC5A1(ST25R3911B) board with STM32-Nuceo-F410RE board.(Using the X-Cube-NFC5 middleware RFAL).I am not getting any responses from my APDU commands sent to a card. ( Also no Error Codes from the rfalIsoDep functions I use).I have selected the NFC card and activated it. I have written a function to send the APDU command to the PICC.After calling therfalIsoDepGetApduTransceiveStatus() until it is not busy anymore, I find that the rxbufferLength is 0.I would expect that even when my APDU command is incorrect, I should at least get a response of 0x90 0x00.I have addedrfalWorker() into my loop for rfalIsoDepGetApduTransceiveStatus() as I assume it is required for the response.Also: According to documentation(rfal.chm + x-cube-nfc5.chm), the rfal is modifying the Txbuffer.prologue, or should I also configure this? I could not see in any example that the prologue needs to be configured.code is as folllows:err = rfalIsoDepPollAHandleActivation(RFAL_COMPLIANCE_MODE_NFC_11,RFAL_ISODEP_FSXI_512,RFAL_ISODEP_NO_DID,RFAL_BR_424,&isoDepDevice);if( err != ERR_NONE ) return false;rfalIsoDepApduTxRxParam myParam;//Param to be passed to rfalIsoDepStartApduTransceive(param) rfalIsoDepApduBufFormat apduCommand;// Struct that contains prologue + APDU Buffer rfalIsoDepApduBufFormat apduResponse;// Struct that contains prologue + APDU Bufferuint8_t DDF2[] = '2PAY.SYS.DDF01'; uint8_t headerLen = 5;uint16_t ddflen = sizeof(DDF2);//Setup APDU CommandapduCommand.apdu[0] = 0x00; //CLA apduCommand.apdu[1] = 0xA4; //INS apduCommand.apdu[2] = 0x04; //P1 apduCommand.apdu[3] = 0x00; //P2 apduCommand.apdu[4] = ddflen - 1; //P2//INSfor (uint8_t i;i

    2019-07-15 14:40

  • 在同一XenServer中支持K1+K2吗?

    我的理解是,虽然没有官方或OEM支持,但它原则上应该仍然有效。然而,当我在XenServer 6.2下尝试此操作时,它只会看到其中一个GRID出现在Dell R720上。插槽顺序可能是关键的,是否需要特定的固件/ BIOS /驱动程序设置/版本,或者我是否尝试了本身不起作用的东西?谢谢,以上来自于谷歌翻译以下为原文My understanding is that while there is no official nor OEM support for this, that it should in principle still work. Yet, when I do try this under XenServer 6.2, it only sees one of the GRIDs show up as recognized on a Dell R720. Is the slot order perhaps critical, are there specific firmware/BIOS/driver settings/versions needed, or am I attempting something that inherently just doesn't work?Thanks,

    2018-09-28 16:46

  • 网格硬件兼容性

    我意识到我的问题的答案可能很明显,但我只需要确定:我们并排运行几种不同的解决方案,以确定最适合我们的Linux VDI项目。我们真的想要实现GRID,看看它是否有助于用户体验。我们在各处都有不同型号的服务器,并寻找关于Grid卡是否可以与我们的服务器配合使用的明确答案。我在这里查看了“认证服务器列表”:http://www.nvidia.com/object/grid-certified-servers.html- 认证列表是否仅适用于Horizo​​n View和供应商?如果我使用的是Dell C6000和Oracle X2-4,那么Grid卡甚至可以选择水平视图..还是RHEV?谢谢以上来自于谷歌翻译以下为原文I realize the answer to my question may be obvious, but I just need to know for sure:We are running a few different solutions side-by-side to determine the best fit for our Linux VDI project. We really want to implement the GRID and see if it helps with the user experience. We have different models of servers all over the place and looking for a definitive answer on whether the Grid card will work with our servers. I viewed the "certified server list" here: http://www.nvidia.com/object/grid-certified-servers.html - Is the certified list exclusively for Horizon View and the Vendor?If I'm using Dell C6000 and Oracle X2-4 is the Grid card even an option for horizon view.. or RHEV?Thanks

    2018-09-07 16:47