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Using Systick timer to achieve delay 1. SysTick timer characteristics The SysTick timer is a 24-bit down counter, that is, when vlue is decremented to 0, an interrupt is triggered and the load va...[Details]
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1. Photovoltaic inverter installation process
1. Preparation before installation
Are the product accessories, installation tools and parts complete? Is the installation environmen...[Details]
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ZTE was punished, and Hou Weigui, who had already retired, had to come out of retirement again and run around to mediate. Let's follow the embedded editor to learn about the relevant content.
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This paper combines embedded control technology with network control technology to realize the design of temperature control system based on single chip microcomputer through Internet control. Th...[Details]
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Using the WWDG of STM32F030, it is found that the MCU will not be reset under STOP, just like the sleep mode of STM8S. Paste the watchdog code: /******************************************************...[Details]
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1. Function and purpose There are two pins BOOT0 and BOOT1 on each STM32 chip. The level status of these two pins when the chip is reset determines which area the program starts from after th...[Details]
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If you do not use an external crystal on the STM32, the connection method of OSC_IN and OSC_OUT If you use the internal RC oscillator instead of an external crystal, please follow the following metho...[Details]
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This program sets the LED running light and the 0-16 numbers of the 0th position of the digital tube to light up in a cycle. The digital tube program cannot be put into the main function, because the...[Details]
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#include reg52.h #define PORTLEN P0 sbit bit_select = P2^0; sbit seg_select = P2^1; unsigned char src = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f ,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; unsigne...[Details]
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1 Main features of EM78P447S The EM78 series of MCUs are 8-bit high-cost-effective MCUs manufactured by Taiwan Elan Electronics Co., Ltd. using CMOS technology. This series of MCUs generally have bui...[Details]
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The chip is EM78P153 ; P64, P65 are connected to the crystal oscillator, the oscillation mode is 4MHz crystal oscillator ; the watchdog is off, the instruction cycle is 2 CLOCK, and P63 is the rese...[Details]
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在一个沒有規则性的内容转换中，查表程序是相当有用的，用户可以使用查表程序很快速的得到相关内容的转换。 例：设计一个程序，將如下图所示中的PORT5读到的一个数值，将输入内容做转换，然后输出到PORT6的7段显示器上。 上图中开关关闭，I/O引脚可以得到一个低电位，若是开关开启则I/O引脚可以得到一个高电位。 图 5.2 数码管 八段说明 7段显示器的接线图如上，我們要編一...[Details]
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This article will introduce how to make an electronic keyboard using SPCE061A, and provide source code. If you have an experiment box from Lingyang University, it will be easy to complete, just a mat...[Details]
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; ******************************************** ; Function: 7-segment digital tube display program * ; MICroProcessor : HT48R50A-1/28SKDIP-A * ; Author: www.picavr.com * ; Cr...[Details]
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Q: I want to use the Mega series of AVR microcontrollers. What development tools support this microcontroller? A: The Mega series of AVR microcontrollers has a complete set of development tools. Eval...[Details]
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