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  • 网络版Vivado是否需要许可证?

    嗨,现在我下载一个网络Vivado。我试图获得许可证,但我在Xilinx帐户上找不到它。请参阅下面的附图。你能告诉我如何为免费网络版Vivado生成许可证吗?Windows 10,64位SO。谢谢,以上来自于谷歌翻译以下为原文Hi, Now I download a web Vivado. I try to get a license, but I cannot find it on my Xilinx account. Please see the attached picture below. Can you tell me how to generate a license for a free web version Vivado? Windows 10, 64bit SO. Thanks,

    2018-12-25 11:00

  • 当放入200 V/m辐射时,25LC128中数据损坏的可能性

    亲爱的先生,我在我的逆变器应用中使用25LC128 EEPROM。我已经注意到EEPROM数据损坏,由于面板内的强辐射。但我不确定原因。辐射细节:E场:200 V/MH场:1 A/MSO,我的问题是,如果EEPROM放置在200 V/m的点处的电压辐射,那么这是可能的吗?这种辐射是否足以破坏数据?问候,Maulik Timbadiya 以上来自于百度翻译 以下为原文 Dear Sir, I am using 25LC128 EEPROM in my inverter application. I have noticed EEPROM data corruption due to strong radiation within the panel. But i am not sure about reason.Radiation Detail:E-field: 200 V/mH-field: 1 A/mSo, my question is if the voltage radiation at the point where EEPROM placed is 200 V/m then is it possible?Is this radiation to strong enough to corrupt data? Regards,Maulik Timbadiya

    2019-02-20 10:14

  • 有关PIC16F1713(或类似)上的PWM和PPS系统的问题

    这只是一个简单的概念性问题,关于在两个输出之间切换PWM(实际上,如果你必须得到前提的话,逻辑电平MOSFET桥的低端)。我有这些引脚设置低,所以在任何给定的时间,一个PPS将是明确的,另一个将被设置为0x0e(PWM3),事实上,有一个“切换”期间,我已经投入当他们都清楚,因为我正在改变高边驱动器,因为我的司机不马上离开。(我在PPS或任何东西上没有任何“锁”。所以对我来说,这是“合乎情理的”,一旦我清除了PPS引脚,它们就会进入闩锁电平低,我就不会遇到桥“穿透”的问题。让我吃惊的是,我得到了大量的“坦克”的补给,并从仿真中撕开了!在PPS中是否存在某种“保持”,它在循环结束之前没有切换到PWM或什么?我必须超时PWM循环以确保它关闭吗?我不知道这是如何记录在数据表上的一种或另一种方式。在高速运行时,它只会在仿真中失灵,但当我一步一步地通过代码时,它的原因对我来说也不明显。(请不要索取代码样本,因为它太长,无法理解,我并不是要求“代码帮助”不管怎样,为什么它是根据不同于我理解的基本原理而工作的?)哦,是的,我没有使用COG,也没有足够的自由引脚来考虑它,请不要这样做。问! 以上来自于百度翻译 以下为原文 This is intended to be just a simple conceptual question about switching the PWM between a couple of outputs (actually the low ends of a logic level MOSFET bridge if you must get the premise). I have the LATs for these pins set low so at any given time one PPS out will be clear and the other will be set to 0x0e (PWM3), well actually there's a "switchover" period I've put in when they're both clear as I'm changing the high side drive over because my driver doesn't go off right away. (I don't have any "locks" on the PPS or anything.) So to me it "stood to reason" that as soon as I cleared both PPS pins they'd go to the latch level low and I wouldn't have a problem with bridge "shoot-through". Surprise I've got LOADS of it and it "tanks" the supply and rips the setup right out of emulation! Is there some kind of "hold" here in the PPS where it doesn't switch out of the PWM until the end of cycle or something? Do I have to time out the PWM cycle to make sure it goes off? I don't see where this is documented on the data sheet one way or the other. To add insult to injury it only busts out of emulation when running at speed, but NOT when I single-step through the code, the reason for that isn't obvious to me either! (PLEASE don't ask for code samples as it would be too long to comprehend, I'm not asking for "code help" anyway just why is it working according to other than what I understood to be the underlying principles.) Oh yeah, I'm not using COG and don't have enough free pins to consider it, please don't ask!

    2018-09-04 15:10