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0 Introduction
As a commonly used display device, the LCD module has the characteristics of low power consumption, rich display content, and flexible control. Among the medium-sized graphic LCD disp...[Details]
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With 51 single-chip microcomputer P89V51RD2 as the main controller, ROK101008 as the Bluetooth module, W3100A as the TCP/IP hardware protocol stack, and Ethernet network card chip RTL8201 as the ne...[Details]
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1.6.5 Example of external voltage detection reset circuit for PIC microcontroller 1. Design idea There are many types of microcontrollers that do not have a power-off reset function. Even for PIC...[Details]
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Use ST's HAL library for development. The RGB screen is a 480*272 4.3-inch LCD. Because driving the RGB screen requires more memory, Therefore, an external SDRAM is used, and the memory is 32M bytes....[Details]
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introduction
Most embedded systems work in an environment with real-time requirements. Some embedded devices may require software to respond within ms, while some real-time tasks must be execu...[Details]
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1 Introduction
In traditional temperature measurement systems, analog temperature sensors are generally used. One of the common characteristics of commonly used analog temperature sensors is th...[Details]
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1. Because I accidentally failed to flash Android 2.3 with fastboot, the development board was bricked. Later, I flashed Android 4.0.4 back through USB with dnw tool. The summary is as follows:
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At present, embedded processors based on ARM core have become the mainstream in the embedded system market. With the widespread application of ARM technology, the establishment of embedded operating ...[Details]
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Use of Cortex-M startup code The previous article talked about the principles of the startup code. Understanding the principles is meaningless if you don’t use them. Understanding the startup c...[Details]
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void Counter_Config() { NVIC_InitTypeDef NVIC_InitStructure; GPIO_InitTypeDef GPIO_InitStructure; TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph...[Details]
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#include intrins.h #include stdio.h #include math.h #include "UPSD3200.H" #include "upsd_pwm.h" #define uint unsigned int #define uchar unsigned char PSD_REGS PSD8xx_reg _at_ csiop; #defin...[Details]
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1. Declaration and initialization of function pointer ... int max_fun(int a, int b); /*Declaration of a function pointer, declaring that both parameters are of type int and the return value is a ...[Details]
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74 series commonly used devices
Commonly used AND gate and NAND gate devices
MM54HC08/MM74HC08
MM54HC11/MM74HC11
MM54HC00/MM74HC00
Commonly used OR gate and NOR gate devices
MM54HC32/MM74...[Details]
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There was a programming master who wrote unstructured programs. A beginner deliberately imitated him and also wrote unstructured programs. When he showed his progress to the master, the master critic...[Details]
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Experimental requirements Code #include "ioCC2530.h" #define D3 P1_0 #define D4 P1_1 #define D5 P1_3 #define D6 P1_4 //Two buttons #define SW1 P1_2 #define SW0 P0_1 //delay function void Delay(...[Details]