hardware - 随笔分类 - stitchCat

what is microphone bias? what is it used for?

摘要：Microphone bias refers to a small DC voltage applied to a microphone's input line to provide power to the microphone's internal electronics. This is c 阅读全文

posted @ 2024-12-17 09:12 stitchCat 阅读(107) 评论(0) 推荐(0)

dsp&codec&baseband

摘要：what's dsp A Digital Signal Processor (DSP) is a specialized microprocessor designed specifically for processing digital signals in real-time. Let me 阅读全文

posted @ 2024-12-06 18:34 stitchCat 阅读(99) 评论(0) 推荐(0)

baseband, carrier, and modem

摘要：Yes, baseband, carrier, and modem are all related concepts, but they refer to different aspects of signal transmission and communication systems. Let' 阅读全文

posted @ 2024-11-07 17:52 stitchCat 阅读(59) 评论(0) 推荐(0)

arm内核(core)，arm微内核(microarchitecture)，arm结构(architecture)，arm指令集(instruction set architecture)

摘要：References: 初识ARM（内核、SoC）一文彻底分清ARM架构、内核、指令集等相关概念【ARM】（1）架构简介什么是ARM、Cortex、SOC、arm架构、ARMv7、ARM指令集？超详细！！！！ Learn the architecture - Introducing the A 阅读全文

posted @ 2024-09-05 17:27 stitchCat 阅读(59) 评论(0) 推荐(0)

怎么理解cpu内核&多核

摘要：References: cpu多核的来历,cpu性能与核心数的联系如何理解处理器、CPU、多处理器、内核、多核？内核/逻辑处理器/线程/多线程/多CPU/多核CPU CPU相关概念：物理cpu数、核数、逻辑cpu数，12核20线程实例分析 Multi-Core on Chip Architect 阅读全文

posted @ 2024-09-05 16:31 stitchCat 阅读(28) 评论(0) 推荐(0)

系统时钟(system clk)和cpu时钟(cpu clk)

摘要：References: STM32的时钟系统 STM32系统时钟及配置方法【STM32】系统时钟RCC详解(超详细，超全面) STM32 internal clocks Changing CPU frequency/clock in existing STM32H750 project What 阅读全文

posted @ 2024-09-05 16:10 stitchCat 阅读(96) 评论(0) 推荐(0)

OLED&LCD屏幕

摘要：References: 【硬核科普】全网最简洁易懂的OLED与LCD屏幕工作原理与优劣科普阅读全文

posted @ 2024-08-23 20:04 stitchCat 阅读(12) 评论(0) 推荐(0)

嵌入式通信基础

摘要：References: 花几分钟理解嵌入式通信基础阅读全文

posted @ 2024-08-01 11:15 stitchCat 阅读(9) 评论(0) 推荐(0)

花几分钟搞懂STM32寄存器

摘要：Reference 花几分钟搞懂STM32寄存器阅读全文

posted @ 2024-08-01 11:14 stitchCat 阅读(17) 评论(0) 推荐(0)

锁存器(计算机能够记忆的原因)

摘要：References 锁存器与触发器详解1_SR锁存器阅读全文

posted @ 2024-08-01 11:13 stitchCat 阅读(31) 评论(0) 推荐(0)

什么是接地

摘要：References: [因材網] 到底什麼是接地(1)避雷針、打雷、富蘭克林 [因材網] 到底什麼是接地(2)接地的功用、漏電、觸電、我們只不過是經過大地當迴路思路串联分流（当接地电阻足够小，那么流经人体的电流就越小，对人体的伤害就越低）阅读全文

posted @ 2024-07-31 20:35 stitchCat 阅读(36) 评论(0) 推荐(0)

Radio Waves

摘要：References Radio Waves 阅读全文

posted @ 2024-07-31 20:34 stitchCat 阅读(6) 评论(0) 推荐(0)

2.4 GHz vs 5 GHz WiFi: What is the difference?

摘要：References: 2.4 GHz vs 5 GHz WiFi: What is the difference? 阅读全文

posted @ 2024-07-31 20:33 stitchCat 阅读(5) 评论(0) 推荐(0)

电位器原理

摘要：References: 总是记不住电位器三个引脚怎么接，把它拆开演示一下简单明了阅读全文

posted @ 2024-07-31 17:14 stitchCat 阅读(43) 评论(0) 推荐(0)

热敏电阻原理

摘要：References: 什么是热敏电阻?工作原理解读阅读全文

posted @ 2024-07-31 17:13 stitchCat 阅读(18) 评论(0) 推荐(0)

PCB设计

摘要：References: 嘉立创EDA-PCB设计零基础入门课程（54集全）【教程】零基础入门PCB设计-国一学长带你学立创EDA专业版全程保姆级教学中文字幕（持续更新中）阅读全文

posted @ 2024-07-31 16:52 stitchCat 阅读(28) 评论(0) 推荐(0)

电阻串并联的等效变换

摘要：References: 1.11电阻串并联的等效变换阅读全文

posted @ 2024-07-31 16:18 stitchCat 阅读(10) 评论(0) 推荐(0)

吸收功率/发出功率

摘要：References: 1.3电源发出功率与负载吸收功率的判定阅读全文

posted @ 2024-07-31 15:58 stitchCat 阅读(32) 评论(0) 推荐(0)

电路参考方向

摘要：References: 电路基本物理量及参考方向电路原理阅读全文

posted @ 2024-07-31 15:14 stitchCat 阅读(9) 评论(0) 推荐(0)

阻抗、电抗、电阻、电抗、感抗和容抗&有功功率/无功功率

摘要：References: 149－什么是阻抗、电阻、电抗、感抗和容抗？阻抗还分实部和虚部（用功功率-无功功率）没有一个公式，让你明白无功功率！阅读全文

posted @ 2024-07-31 09:11 stitchCat 阅读(115) 评论(0) 推荐(0)

随笔分类 - hardware

公告