Others

Http://blog.csdn.net/zhanglianpin/article/details/6759595 Today, I checked the UCOS protection critical section.CodeUCOS uses the disallow interrupt to protect the critical segment. UCOS provides three methods: 1. Direct disconnection and direct

Plus: plus Minus: minus Multiply: Times/multiplied Except: divided (Not) equal to :( not) equals/be (not) equal Smaller than: be greater (less) Much greater than (less than): Be Much/far greater (less) Equal to: be

In VC, the timer using the built-in settimer function is not highly accurate, including gettickcount to obtain the number of tick answers (theoretically only 55 ms); and sleep function, which is not very accurate, measurement within milliseconds;

Here, the formula is deduced. Let's look at the example: We hope that the asterisk and the plus sign can be distinguished. Below are the mainCode: Function [th, ll] = plotdots (x, y, z) % rows of X are training samples %

At the beginning, we can see the stmfd SP! The {R0-R5, LR} command was a bit confusing. Record it according to your understanding. For your sharing! First, we need to understand the concept of stack. 1. Full Stack: the stack pointer SP points to the

The following content is derived from machine learning on Coursera and is based on Rachel-Zhang's blog (http://blog.csdn.net/abcjennifer) There are two gradient algorithms: (1) Batch gradient descent (batch

  I am a computer student and want to figure out how the computer we are learning actually works. The whole computer knowledge is a huge theoretical system, which is divided into many layers. In short, there are hardware and software layers. The key

Starting with how to break down a signal into a basic signal by taking advantage of the linear time-invariant nature of the system, there are two basic signals, one is a delay pulse and the other is a complex exponential signal, the two correspond

Zero completion can be used in many cases, but the effect of zero completion in different locations is different. Zero-padding mainly includes zero-padding, and zero-padding. We set the original sequence column as x (n), and the sequence after the

Continuous, discrete Fourier transformation and series are still very mixed! 1. Due to the periodicity of the discrete complex index, the discrete Fourier transformation has a periodic (2 π ). This leads to a series of differences, such as

  Today, I read the UCOS protection critical segment code. UCOS uses the prohibition of interruption to protect the critical segment. UCOS provides three methods: 1. Direct disconnection and direct disconnection. It is used in pairs to ensure the

Sleep functions in VC are useful in latency applications. For example, in a communication program, one party needs to wait for the other party for several milliseconds before processing, or in an endless loop, so that the CPU usage does not occupy 10

The serial port problem that plagued me was finally solved yesterday afternoon. It was a pleasure, haha. I was a little frustrated when I was so happy that I should be able to figure out the program. Even though I ran through it, I still had some

Author: number007cool From: http://blog.chinaunix.net/uid-21658993-id-3025218.html After a while, it seems a little strange to stm32. Let's sum up! (Chip stm32f103rbt6 Based on the 3.0 Firmware Library) 1. Configure the serial port pin and

Several steps to use the printf function on the smt32 serial port 1. # include 2. Add three small Functions Void uart_put (u8 dat){While (usart_getflagstatus (usart1, usart_flag_tc) = reset );Usart_senddata (usart1, dat );} Int fputc (int ch, file *

Article transferred from network: Rom and RAM are both semiconductor memory, Rom is short for read only memory, and Ram is short for random access memory. ROM can still maintain data when the system stops power supply, while Ram usually loses data

First, I declare that I am not an advertisement for Xiaomi, and I am not a Xiaomi user, but recently many people have asked me how to brush Xiaomi. I will write this article, which is a good one, here, convenience for those who need it. OTA

Bool setprivilege (handle htoken, // access token handle lpctstr failed, // name of privilege to enable/disable bool benableprivilege // to enable or disable privilege) {your TP; luid; if (! Upper (null, // lookup privilege on local

//// Determine whether a floating point number falls into the range string. // The range string conforms to the mathematical range definition: [a, B], (A, B), (-X, 100 )..... // "∞" uses "X" to represent // # define pass_ OK (100) # define pass_no (1

The following is a learning process for recording the color static controls implemented by individuals: Preparations: ① Create an application in the MFC dialog box and place two static controls (idc_static1 and idc_static2) and one button in the