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Catalogue of Series Articles RT-THREAD Kernel Quick Start (1) Threads RT-THREAD Kernel Quick Start (2) Timer RT-THREAD Kernel Quick Start (3) Semaphores, Mutexes, Events Preface This is the fourth in the Quick Start series, the last to last in the Programming section, followed by a Memory Management and Interrupts section, which is t ...

1. What is kprobe lfKprobe LF is a high delay function location analysis tool based on kprobe and interrupt timerKprobe lf can locate and analyze most kernel functions. When the delay is set sufficiently, you can also observe the stack of normal delay functions1.1 why kprobe lfBecause this tool has two important settings, one is degree and the ...

C language notes - day04 P34_ recursion 1. Application of recursion Hanoi 2. The essence of recursion In principle, recursion is the behavior of the function call itself. 3. Write recursive procedures need to pay attention to Recursive exit: the recursive program needs to set the end condition correctly, otherwise the recursive progra ...

Expression evaluation The order in which expressions are evaluated is partly determined by the priority and associativity of operators. The operands of some expressions may need to be converted to other types during evaluation. Implicit type conversion 1. Shaping and lifting Secretly converted, and can not be seen intuitively The integ ...

Mixed use of various modules (1) Measurement of temperature and humidity;             DHT11 (2) Display of temperature, humidity and other parameters;      LCD screen (3) Setting of alarm data (key);       EXIT interrupt service function (4) Temperature and humidity con ...

The data structure algorithm implemented in C language is explained one by one below: (Swap function is a transposition function at the end, which can be understood) 1. Insert sorting As the name suggests, a value is inserted one by one from the front. When inserting, it is sorted once. If there are n numbers, it is sorted n times Th ...

<string. h> There are many commonly used string functions in the library. Mengxin blogger has made some summary here catalogue 1.strlen 2.strcpy  3.strcat 4.strcmp 5.strncpy 6.strncat 7.strncmp 8.strstr  9.strtok 10.strerror  11.memcpy 12.memmove 13.memcmp 1.strlen Function prototype: size_t strlen ( const char * str ); ...

preface I finished the student management system this week. I met many problems in the process of completion. Today I will summarize some difficult modules of the management system written last week. login interface When writing the student management system, I first write the login interface. The student management system has three identity ...

Report Download Code download 1. Problem description 1.1 banker algorithm The applicant shall state in advance the maximum demand for various resources. When dynamically applying for a certain type of resources during process activities, the system reviews whether the number of existing resources in the system can meet the maximum demand of ...

Introduction to data types C language type: 1. Built in type char short int long double float 2. User defined type (construction type) Meaning of type: 1. Use this type to open up the size of memory space (the size determines the scope of use) 2. How to view memory space int main() { int a = 10; float f = 10.0; return 0; } Dif ...