对此有过经验吗？我做错什么了？ 以上来自于百度翻译 以下为原文 Hi, I am writing Unit-Tests and now I need to mock a function
2019-01-10 15:38
1、拉取镜像docker pull mongo:3.4docker pull redis:4.0.6docker pull easymock/easymock:1.6.0docker pull nginx
2020-10-27 10:24
在程序执行期间，我遇到了“你现在可以读取/写入文件”的问题。该程序然后挂起。问题是文件没有在任何其他地方打开＆amp; excel不会告诉您何时启动该程序它是只读的。是什么导致Excel这样做？ 以上来自于谷歌翻译 以下为原文I am having a problem with the "you can now read/write to a file" during the excuetion of a program. The program then hangs. The problem is that the file is not open any where else & excel does not tell you when you start the program it is read only.What is causing Excel to do this ?
2019-03-12 16:31
code to write & read 100bytes.2. Temp buffer is loaded with a mock data in an tempbuf[100] array
2019-05-23 08:33
作者：Michael Mock德州仪器工程师们几十年来一直在努力理解神秘的共模电压 (VCM) 与输出电压 (VOUT) 比较图。尽管 VCM 与 VOUT 形状经常会因器件及设置配置的不同而
2018-09-18 16:17
Dymola多学科系统仿真平台
2020-12-23 07:59
Dymola 是法国Dassault Systems公司的多学科系统仿真平台，广泛应用于国内外汽车、工业、交通、能源等行业的系统总体架构设计、指标分解以及系统功能验证及优化等。Dymola 支持FMI 标准接口协议，可用于集成不同软件建立的、不同详细程度的模型，进行MIL、SIL 和HIL 测试。
2021-01-22 06:35
大家好请教一个迷惑我很久的问题。请大家帮我看看。我正在做一个流量控制系统。参考增量式PID公式：△u(k)=Kp*[e(k)-e(k-1)]+Ki*e(k)+Kd*[e(k)-2e(k-1)+e(k-2)] 。通过步进电机控制流量调节阀 ,每次调节后，输出的步进电机要动作的位移增量。那么，我的疑惑在于，应该输出 还是△u(k)？书上好多地方都说应该输出△u(k)。但是我无法理解，如果输出△u(k)，那么调节关系是步进电机位置和偏差的PID关系，可是，他们之间压根没有关系。只有位置增量和偏差才会有关系。所以，我理解的应该是输出u(k)。请大神指点，我错在哪里了
2015-09-02 10:18
如何打开apk的root权限功能呢？
2022-02-17 06:22
在写一个字节到SPI之后，什么是推荐的方法来确保所有的位都被完全传输？我的应用程序只写（从不读取）。它还需要等待每个字节被完全发送，因为在每个字节之后，一个单独的硬件脉冲必须发送到接收器，这使得接收器处理接收到的字节。最初，我的写入和轮询看起来是这样的：但是上面的代码看起来是不可靠的。我认为这个问题是一个竞赛：在字节到达移位寄存器之前（即字节仍在FIFO中工作），可以很快轮询移位寄存器，在这种情况下，在字节被发送之前轮询结束。这种失败将是时间相关的，对ISRs正在运行的内容非常敏感。根据我的阅读，我得到的印象是，我应该轮询SPixType，如下：SPI文档只说SPICONTHOST＝1意味着“SPI外围设备目前正忙于一些事务。”忙位保持设置，直到所有挂起的事务完成，经验表明这是真的。但是SPI文档没有说明什么时候比特被设置。在硬件有机会设置它响应缓冲区写入之前，是否可以很快轮询SPILASH？或者SpBiF的写入保证了SPICONT的设置？换句话说，SPI模块是否向SPIBUF写入并设置SPIBUSY atomic？请注意，我已经启用了FIFO，因为这是和谐设置它，但它没有获得任何东西，因为需要在每个字节之后等待。我使用的是PIC32 MZ1024ECG144。 以上来自于百度翻译 以下为原文 After writing a byte to SPI, what's the recommended method of polling to ensure that all its bits have been entirely transmitted?My application does writes only (never reads). It also needs to wait for each byte to be completely sent, because after each byte a separate hardware pulse must be sent to the receiver, which causes the receiver to process the received byte. Originally my write and polling looked like this:PLIB_SPI_BufferWrite(SPI_ID_1, data);while (!PLIB_SPI_TransmitBufferIsEmpty(SPI_ID_1));while (!PLIB_SPI_FIFOShiftRegisterIsEmpty(SPI_ID_1));// assume SPI transaction completeBut the above code appears to be unreliable. I assume the issue is a race: it's possible to poll the shift register too soon, before the byte reaches the shift register (i.e. the byte is still working its way through the FIFO), in which case polling ends before the byte has been sent. This failure would be timing-dependent and sensitive to what ISRs were running etc. Based on my reading I get the impression that I should poll SPIBUSY instead, as follows:PLIB_SPI_BufferWrite(SPI_ID_1, data);while (PLIB_SPI_IsBusy(SPI_ID_1));// assume SPI transaction completeThe SPI doc says only that SPIBUSY = 1 means "SPI peripheral is currently busy with some transactions." I take this to mean that the busy bit remains set until all pending transactions are completed, and experience suggests this is true. But the SPI doc says nothing about when the bit becomes set. Is it possible to poll SPIBUSY too soon, before the hardware has had a chance to set it in response to the buffer write? Or does writing to SPIBUF guarantee that SPIBUSY is set? In other words, does the SPI module make writing to SPIBUF and setting SPIBUSY atomic?Note that I have the FIFO enabled, because that's how Harmony set it up, but it doesn't gain me anything, due to the need to wait after each byte. I'm using the PIC32MZ1024ECG144.
2019-07-15 10:33
