https://captdam.com/All Resources - Captdam's BlogCopyright Captdam | CC BY-SABearwebhttps://captdam.com/https://captdam.com/favicon.icoTue, 26 May 2026 23:26:12 +0000admin@beardle.comhttps://captdam.com/kcakagi-cos/deck_lower.pnghttps://captdam.com/kcakagi-cos/deck_lower.pngCaptdamContentTue, 26 May 2026 23:26:09 +0000https://captdam.com/zhhttps://captdam.com/zhHomeTue, 26 May 2026 23:25:54 +0000https://captdam.com/sitemap.xmlhttps://captdam.com/sitemap.xmlIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/sitemap.txthttps://captdam.com/sitemap.txtIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/search/zhhttps://captdam.com/search/zhCatalog我的所有博客检索Tue, 26 May 2026 23:25:54 +0000https://captdam.com/search/enhttps://captdam.com/search/enCatalogMy blog indexTue, 26 May 2026 23:25:54 +0000https://captdam.com/rss.zh.xmlhttps://captdam.com/rss.zh.xmlIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/rss.xmlhttps://captdam.com/rss.xmlIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/rss.en.xmlhttps://captdam.com/rss.en.xmlIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/rss.embedded.zh.xmlhttps://captdam.com/rss.embedded.zh.xmlIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/rss.embedded.en.xmlhttps://captdam.com/rss.embedded.en.xmlIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/rss.computer.zh.xmlhttps://captdam.com/rss.computer.zh.xmlIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/rss.computer.en.xmlhttps://captdam.com/rss.computer.en.xmlIndexTue, 26 May 2026 23:25:54 +0000https://captdam.com/enhttps://captdam.com/enHomeTue, 26 May 2026 23:25:54 +0000https://captdam.com/embedded/zhhttps://captdam.com/embedded/zhCatalog嵌入式系统涵盖了电路硬件与基于单片机的软件系统。Tue, 26 May 2026 23:25:54 +0000https://captdam.com/embedded/enhttps://captdam.com/embedded/enCatalogEmbedded system combines circuit hardware and micro-controller (MCU) program software.Tue, 26 May 2026 23:25:54 +0000https://captdam.com/computer/zhhttps://captdam.com/computer/zhCatalog计算机不单单用于工作与玩游戏，也能用来解决日常问题。Tue, 26 May 2026 23:25:54 +0000https://captdam.com/computer/enhttps://captdam.com/computer/enCatalogComputer is not only a tool for working or gamming, but also a tool to solve daily problems.Tue, 26 May 2026 23:25:54 +0000https://captdam.com/catalog/zhhttps://captdam.com/catalog/zhCatalog我的所有博客检索Tue, 26 May 2026 23:25:54 +0000https://captdam.com/catalog/enhttps://captdam.com/catalog/enCatalogMy blog indexTue, 26 May 2026 23:25:54 +0000https://captdam.com/kcakagi-cos/deck_extrude.pnghttps://captdam.com/kcakagi-cos/deck_extrude.pngCaptdamContentTue, 26 May 2026 23:09:06 +0000https://captdam.com/kcakagi-cos/deck_drawing.pnghttps://captdam.com/kcakagi-cos/deck_drawing.pngCaptdamContentTue, 26 May 2026 23:03:10 +0000https://captdam.com/kcakagi-cos/deck4.pnghttps://captdam.com/kcakagi-cos/deck4.pngCaptdamContentTue, 26 May 2026 22:37:38 +0000https://captdam.com/kcakagi-cos/deck3.pnghttps://captdam.com/kcakagi-cos/deck3.pngCaptdamContentTue, 26 May 2026 22:37:28 +0000https://captdam.com/kcakagi-cos/deck2.pnghttps://captdam.com/kcakagi-cos/deck2.pngCaptdamContentTue, 26 May 2026 22:37:18 +0000https://captdam.com/kcakagi-cos/deck1.pnghttps://captdam.com/kcakagi-cos/deck1.pngCaptdamContentTue, 26 May 2026 22:37:06 +0000https://captdam.com/kcakagi-cos/deck.pnghttps://captdam.com/kcakagi-cos/deck.pngCaptdamContentTue, 26 May 2026 22:30:16 +0000https://captdam.com/kcakagi-cos/deck_1m.pnghttps://captdam.com/kcakagi-cos/deck_1m.pngCaptdamContentTue, 26 May 2026 22:26:04 +0000https://captdam.com/kcakagi-cos/deck_1t.pnghttps://captdam.com/kcakagi-cos/deck_1t.pngCaptdamContentTue, 26 May 2026 22:25:53 +0000https://captdam.com/kcakagi-cos/deck_1u.pnghttps://captdam.com/kcakagi-cos/deck_1u.pngCaptdamContentTue, 26 May 2026 22:25:44 +0000https://captdam.com/kcakagi-cos/deck_2t.pnghttps://captdam.com/kcakagi-cos/deck_2t.pngCaptdamContentTue, 26 May 2026 22:25:36 +0000https://captdam.com/kcakagi-cos/deck_2u.pnghttps://captdam.com/kcakagi-cos/deck_2u.pngCaptdamContentTue, 26 May 2026 22:25:26 +0000https://captdam.com/kcakagi-cos/deck_3t.pnghttps://captdam.com/kcakagi-cos/deck_3t.pngCaptdamContentTue, 26 May 2026 22:25:17 +0000https://captdam.com/kcakagi-cos/deck_3u.pnghttps://captdam.com/kcakagi-cos/deck_3u.pngCaptdamContentTue, 26 May 2026 22:25:10 +0000https://captdam.com/kcakagi-cos/deck_4m.pnghttps://captdam.com/kcakagi-cos/deck_4m.pngCaptdamContentTue, 26 May 2026 22:25:03 +0000https://captdam.com/kcakagi-cos/deck_4t.pnghttps://captdam.com/kcakagi-cos/deck_4t.pngCaptdamContentTue, 26 May 2026 22:24:56 +0000https://captdam.com/kcakagi-cos/deck_4u.pnghttps://captdam.com/kcakagi-cos/deck_4u.pngCaptdamContentTue, 26 May 2026 22:24:45 +0000https://captdam.com/kcakagi-cos/deck_front1.pnghttps://captdam.com/kcakagi-cos/deck_front1.pngCaptdamContentTue, 26 May 2026 22:24:17 +0000https://captdam.com/kcakagi-cos/deck_front2.pnghttps://captdam.com/kcakagi-cos/deck_front2.pngCaptdamContentTue, 26 May 2026 22:23:59 +0000https://captdam.com/kcakagi-cos/deck_left.pnghttps://captdam.com/kcakagi-cos/deck_left.pngCaptdamContentTue, 26 May 2026 22:22:46 +0000https://captdam.com/kcakagi-cos/deck_right.pnghttps://captdam.com/kcakagi-cos/deck_right.pngCaptdamContentTue, 26 May 2026 22:22:34 +0000https://captdam.com/kcakagi-cos/deck_tail.pnghttps://captdam.com/kcakagi-cos/deck_tail.pngCaptdamContentTue, 26 May 2026 22:22:22 +0000https://captdam.com/kcakagi-cos/arm_anchor.pnghttps://captdam.com/kcakagi-cos/arm_anchor.pngCaptdamContentTue, 26 May 2026 22:00:28 +0000https://captdam.com/kcakagi-cos/arm_base1.pnghttps://captdam.com/kcakagi-cos/arm_base1.pngCaptdamContentTue, 26 May 2026 22:00:21 +0000https://captdam.com/kcakagi-cos/arm_base2.pnghttps://captdam.com/kcakagi-cos/arm_base2.pngCaptdamContentTue, 26 May 2026 22:00:15 +0000https://captdam.com/kcakagi-cos/arm_mid.pnghttps://captdam.com/kcakagi-cos/arm_mid.pngCaptdamContentTue, 26 May 2026 22:00:06 +0000https://captdam.com/kcakagi-cos/arm_top.pnghttps://captdam.com/kcakagi-cos/arm_top.pngCaptdamContentTue, 26 May 2026 21:59:56 +0000https://captdam.com/kcakagi-cos/arm.pnghttps://captdam.com/kcakagi-cos/arm.pngCaptdamContentTue, 26 May 2026 21:58:00 +0000https://captdam.com/pico-uart/enhttps://captdam.com/pico-uart/enCaptdamEmbedded-enIn this article, we will discuss how to use the UART on RP2040 in a bare metal application.Wed, 20 May 2026 02:56:54 +0000https://captdam.com/pico-uart/zhhttps://captdam.com/pico-uart/zhCaptdamEmbedded-zh这篇文章将讨论如何在裸金属应用中使用RP2040串口通讯。Wed, 20 May 2026 02:55:23 +0000https://captdam.com/pico-uart/src.ziphttps://captdam.com/pico-uart/src.zipCaptdamContentWed, 20 May 2026 02:53:29 +0000https://captdam.com/pico-program-storage/rp2040-io_bank0_gpio_ctrl.pnghttps://captdam.com/pico-program-storage/rp2040-io_bank0_gpio_ctrl.pngCaptdamContentSun, 29 Mar 2026 06:34:04 +0000https://captdam.com/pico-uart/rp2040-uartdr.pnghttps://captdam.com/pico-uart/rp2040-uartdr.pngCaptdamContentSat, 28 Mar 2026 06:36:40 +0000https://captdam.com/pico-uart/rp2040-uartfr.pnghttps://captdam.com/pico-uart/rp2040-uartfr.pngCaptdamContentSat, 28 Mar 2026 06:36:31 +0000https://captdam.com/pico-uart/rp2040-clocks_clk_peri_ctrl.pnghttps://captdam.com/pico-uart/rp2040-clocks_clk_peri_ctrl.pngCaptdamContentSat, 28 Mar 2026 06:11:51 +0000https://captdam.com/pico-uart/rp2040-uartbdr.pnghttps://captdam.com/pico-uart/rp2040-uartbdr.pngCaptdamContentSat, 28 Mar 2026 06:05:07 +0000https://captdam.com/pico-uart/rp2040-uartlcr_h.pnghttps://captdam.com/pico-uart/rp2040-uartlcr_h.pngCaptdamContentSat, 28 Mar 2026 06:04:55 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Discuss memory strategies, data hazard and structural hazard. Load program from flash into SRAM then execute from SRAM.Thu, 12 Mar 2026 08:18:38 +0000https://captdam.com/pico-execmem/zhhttps://captdam.com/pico-execmem/zhCaptdamEmbedded-zh对比RP2040可执行内存（闪存XIP空间、条带SRAM、区块SRAM）。探讨内存规划、数据冒险与结构冒险。将闪存中保存的程序载入SRAM后再执行。Thu, 12 Mar 2026 08:18:33 +0000https://captdam.com/pico-execmem/flash.ziphttps://captdam.com/pico-execmem/flash.zipCaptdamContentWed, 11 Mar 2026 06:59:17 +0000https://captdam.com/pico-execmem/wave-2way.jpghttps://captdam.com/pico-execmem/wave-2way.jpgCaptdamContentWed, 11 Mar 2026 06:58:56 +0000https://captdam.com/pico-execmem/wave-flash.jpghttps://captdam.com/pico-execmem/wave-flash.jpgCaptdamContentWed, 11 Mar 2026 06:58:49 +0000https://captdam.com/pico-execmem/wave-largelarge.jpghttps://captdam.com/pico-execmem/wave-largelarge.jpgCaptdamContentWed, 11 Mar 2026 06:58:38 +0000https://captdam.com/pico-execmem/wave-smalllarge.jpghttps://captdam.com/pico-execmem/wave-smalllarge.jpgCaptdamContentWed, 11 Mar 2026 06:58:27 +0000https://captdam.com/pico-execmem/uf2.pnghttps://captdam.com/pico-execmem/uf2.pngCaptdamContentTue, 10 Mar 2026 23:21:51 +0000https://captdam.com/pico-execmem/usb.ziphttps://captdam.com/pico-execmem/usb.zipCaptdamContentTue, 10 Mar 2026 05:56:50 +0000https://captdam.com/pico-execmem/wave-structhazard.jpghttps://captdam.com/pico-execmem/wave-structhazard.jpgCaptdamContentTue, 10 Mar 2026 01:41:26 +0000https://captdam.com/pico-execmem/rp2040-mem.pnghttps://captdam.com/pico-execmem/rp2040-mem.pngCaptdamContentMon, 09 Mar 2026 18:51:05 +0000https://captdam.com/pico-execmem/rp2040-xip.pnghttps://captdam.com/pico-execmem/rp2040-xip.pngCaptdamContentMon, 09 Mar 2026 18:34:20 +0000https://captdam.com/pico-execmem/rp2040-rom.pnghttps://captdam.com/pico-execmem/rp2040-rom.pngCaptdamContentMon, 09 Mar 2026 18:34:11 +0000https://captdam.com/pico-execmem/rp2040-sram.pnghttps://captdam.com/pico-execmem/rp2040-sram.pngCaptdamContentMon, 09 Mar 2026 18:34:03 +0000https://captdam.com/pico-execmem/rp2040-sio.pnghttps://captdam.com/pico-execmem/rp2040-sio.pngCaptdamContentMon, 09 Mar 2026 18:26:15 +0000https://captdam.com/pico-execmem/wave-sram.jpghttps://captdam.com/pico-execmem/wave-sram.jpgCaptdamContentMon, 09 Mar 2026 03:48:45 +0000https://captdam.com/pico-execmem/rp2040-memregion.pnghttps://captdam.com/pico-execmem/rp2040-memregion.pngCaptdamContentMon, 09 Mar 2026 03:04:47 +0000https://captdam.com/pico-clk/zhhttps://captdam.com/pico-clk/zhCaptdamEmbedded-zh对比RP2040时钟源，在裸金属应用中切换时钟。Sun, 08 Mar 2026 00:37:30 +0000https://captdam.com/pico-clk/enhttps://captdam.com/pico-clk/enCaptdamEmbedded-enCompare the RP2040 clock sources, switch the clock source in bare metal.Sun, 08 Mar 2026 00:36:27 +0000https://captdam.com/pico-multicore/enhttps://captdam.com/pico-multicore/enCaptdamEmbedded-enAnalysis the RP2040 Core 1 launch protocol. Launch core 1 in bare metal multi-processor application with minimum code.Sat, 07 Mar 2026 21:39:05 +0000https://captdam.com/pico-multicore/zhhttps://captdam.com/pico-multicore/zhCaptdamEmbedded-zh研究RP2040核心1启动协议。在多核裸金属应用中启动核心1。Sat, 07 Mar 2026 21:27:26 +0000https://captdam.com/pico-bootloader/zhhttps://captdam.com/pico-bootloader/zhCaptdamEmbedded-zh以8位单片机开发者的视角分析W25Q闪存通讯与反汇编RP2040 SDK二级引导程序。Sat, 07 Mar 2026 21:10:52 +0000https://captdam.com/pico-bootloader/enhttps://captdam.com/pico-bootloader/enCaptdamEmbedded-enAnalysis the W25Q flash memory communication and the RP2040 SDK 2nd stage bootloader in disassembled code from the perspective of an 8-bit MCU developer's view.Sat, 07 Mar 2026 21:10:09 +0000https://captdam.com/pico-clk/pllclk.ziphttps://captdam.com/pico-clk/pllclk.zipCaptdamContentSat, 07 Mar 2026 07:29:01 +0000https://captdam.com/pico-clk/rp2040-pll_prim.pnghttps://captdam.com/pico-clk/rp2040-pll_prim.pngCaptdamContentSat, 07 Mar 2026 05:33:35 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+0000https://captdam.com/pico-program-storage/enhttps://captdam.com/pico-program-storage/enCaptdamEmbedded-enProgram the Pico (RP2040) from the perspective of an 8-bit MCU developer’s view, focus on details in SRAM and flash memory programming.Mon, 02 Mar 2026 14:59:28 +0000https://captdam.com/pico-multicore/c-dualcore.ziphttps://captdam.com/pico-multicore/c-dualcore.zipCaptdamContentSat, 28 Feb 2026 21:06:21 +0000https://captdam.com/pico-multicore/rp2040-sio_cpuid.pnghttps://captdam.com/pico-multicore/rp2040-sio_cpuid.pngCaptdamContentFri, 20 Feb 2026 14:54:23 +0000https://captdam.com/pico-multicore/rp2040-m0plus_scr.pnghttps://captdam.com/pico-multicore/rp2040-m0plus_scr.pngCaptdamContentFri, 20 Feb 2026 14:54:11 +0000https://captdam.com/pico-multicore/rp2040-sio_fifo.pnghttps://captdam.com/pico-multicore/rp2040-sio_fifo.pngCaptdamContentThu, 19 Feb 2026 04:46:44 +0000https://captdam.com/pico-program-storage/asm-blink-flash.ziphttps://captdam.com/pico-program-storage/asm-blink-flash.zipCaptdamContentSat, 14 Feb 2026 08:46:07 +0000https://captdam.com/pico-program-storage/asm-blink-sram.ziphttps://captdam.com/pico-program-storage/asm-blink-sram.zipCaptdamContentSat, 14 Feb 2026 08:29:08 +0000https://captdam.com/pico-program-storage/rp2040-sio_gpio_xor.pnghttps://captdam.com/pico-program-storage/rp2040-sio_gpio_xor.pngCaptdamContentSat, 14 Feb 2026 05:38:16 +0000https://captdam.com/pico-program-storage/rp2040-sio_gpio_oe.pnghttps://captdam.com/pico-program-storage/rp2040-sio_gpio_oe.pngCaptdamContentSat, 14 Feb 2026 05:17:53 +0000https://captdam.com/pico-program-storage/rp2040-gpio-function-select.pnghttps://captdam.com/pico-program-storage/rp2040-gpio-function-select.pngCaptdamContentSat, 14 Feb 2026 05:08:39 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Furthermore, it shows how to write a bare metal C program with manual link, and how to write a program with mixed C and assembly code for AVR.Sun, 09 Nov 2025 09:29:56 +0000https://captdam.com/avrgcc/enhttps://captdam.com/avrgcc/enCaptdamEmbedded-enIn this article, a number of experiments are used to examine the output machine code generated by AVR-GCC. 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00:44:19 +0000https://captdam.com/pico-program-storage/vonneumann.webphttps://captdam.com/pico-program-storage/vonneumann.webpCaptdamContentThu, 28 Aug 2025 08:06:09 +0000https://captdam.com/pico-program-storage/harvard.webphttps://captdam.com/pico-program-storage/harvard.webpCaptdamContentThu, 28 Aug 2025 08:05:54 +0000https://captdam.com/pico-program-storage/pico.jpghttps://captdam.com/pico-program-storage/pico.jpgCaptdamContentThu, 28 Aug 2025 07:45:46 +0000https://captdam.com/pico-program-storage/bootseq.webphttps://captdam.com/pico-program-storage/bootseq.webpCaptdamContentThu, 28 Aug 2025 04:58:57 +0000https://captdam.com/attiny-ws2812/enhttps://captdam.com/attiny-ws2812/enCaptdamEmbedded-enThis article shows how to use AVR MCU (ATtiny) to efficiently drive WS2812 LEDs, that is, using parallel signals to drive segmented LED stripe.Mon, 18 Aug 2025 09:36:08 +0000https://captdam.com/attiny-ws2812/zhhttps://captdam.com/attiny-ws2812/zhCaptdamEmbedded-zh这篇文章展示了使用AVR单片机（ATtiny）高效驱动WS2812系列LED灯条。算法使用缓存与并行总线的设计来提高系统输出速度与单位时间的数据吞吐量。Mon, 18 Aug 2025 09:34:45 +0000https://captdam.com/attiny-ws2812/data-conv.pnghttps://captdam.com/attiny-ws2812/data-conv.pngCaptdamContentMon, 18 Aug 2025 09:06:15 +0000https://captdam.com/attiny-ws2812/test-multiseg.pnghttps://captdam.com/attiny-ws2812/test-multiseg.pngCaptdamContentMon, 18 Aug 2025 09:05:57 +0000https://captdam.com/ch340/enhttps://captdam.com/ch340/enCaptdamEmbedded-enI made a very tiny CH340E based USB-UART interface board.Mon, 18 Aug 2025 01:50:08 +0000https://captdam.com/ch340/zhhttps://captdam.com/ch340/zhCaptdamEmbedded-zh我做了一个非常小的基于CH340E的USB-UART转换板。Mon, 18 Aug 2025 01:49:46 +0000https://captdam.com/ch340/ch340e-devmgr.pnghttps://captdam.com/ch340/ch340e-devmgr.pngCaptdamContentMon, 18 Aug 2025 00:59:30 +0000https://captdam.com/ch340/ch340e-echo.jpghttps://captdam.com/ch340/ch340e-echo.jpgCaptdamContentMon, 18 Aug 2025 00:56:53 +0000https://captdam.com/ch340/ch340e-pcb.jpghttps://captdam.com/ch340/ch340e-pcb.jpgCaptdamContentMon, 18 Aug 2025 00:53:10 +0000https://captdam.com/ch340/rs232.jpghttps://captdam.com/ch340/rs232.jpgCaptdamContentMon, 18 Aug 2025 00:50:19 +0000https://captdam.com/ch340/ch340-family.pnghttps://captdam.com/ch340/ch340-family.pngCaptdamContentSun, 17 Aug 2025 23:56:53 +0000https://captdam.com/ch340/ch340e-pcb.pnghttps://captdam.com/ch340/ch340e-pcb.pngCaptdamContentSun, 17 Aug 2025 23:53:55 +0000https://captdam.com/ch340/ch340e-schematic.pnghttps://captdam.com/ch340/ch340e-schematic.pngCaptdamContentSun, 17 Aug 2025 23:53:33 +0000https://captdam.com/ch340/ch340e-breakout.ziphttps://captdam.com/ch340/ch340e-breakout.zipCaptdamContentSun, 17 Aug 2025 23:48:00 +0000https://captdam.com/my-attiny/enhttps://captdam.com/my-attiny/enCaptdamEmbedded-enThis blog will introduce ATtiny chips in DIP / SOIC packages and with SPI-based ICSP interface that I have been used in my projects.Tue, 05 Aug 2025 05:36:54 +0000https://captdam.com/my-attiny/zhhttps://captdam.com/my-attiny/zhCaptdamEmbedded-zh这一篇博客主要讨论一下我玩过的基于SPI的ICSP编程头的DIP与SOIC封装的ATtiny。Tue, 05 Aug 2025 05:36:07 +0000https://captdam.com/attiny-ws2812/test-board.ziphttps://captdam.com/attiny-ws2812/test-board.zipCaptdamContentSat, 02 Aug 2025 06:07:44 +0000https://captdam.com/attiny-ws2812/test-blink.gifhttps://captdam.com/attiny-ws2812/test-blink.gifCaptdamContentFri, 01 Aug 2025 05:24:34 +0000https://captdam.com/attiny-ws2812/test-allon.jpghttps://captdam.com/attiny-ws2812/test-allon.jpgCaptdamContentFri, 01 Aug 2025 05:11:25 +0000https://captdam.com/attiny-ws2812/test-connection.jpghttps://captdam.com/attiny-ws2812/test-connection.jpgCaptdamContentFri, 01 Aug 2025 05:11:08 +0000https://captdam.com/attiny-ws2812/test-pcb.jpghttps://captdam.com/attiny-ws2812/test-pcb.jpgCaptdamContentFri, 01 Aug 2025 05:10:53 +0000https://captdam.com/attiny-ws2812/test-pcb.pnghttps://captdam.com/attiny-ws2812/test-pcb.pngCaptdamContentFri, 01 Aug 2025 04:49:29 +0000https://captdam.com/attiny-ws2812/test-schematic.pnghttps://captdam.com/attiny-ws2812/test-schematic.pngCaptdamContentFri, 01 Aug 2025 04:49:15 +0000https://captdam.com/ultrasonic-sensor/zhhttps://captdam.com/ultrasonic-sensor/zhCaptdamEmbedded-zh使用HC-SR04超声波测距模块与51单片机汇编。Wed, 04 Jun 2025 03:53:21 +0000https://captdam.com/avr-call-stack/enhttps://captdam.com/avr-call-stack/enCaptdamEmbedded-enThis article will discuss demonstrate the stack operation of AVR-GCC when calling a function from the hardware's perspective of view.Mon, 03 Mar 2025 05:03:17 +0000https://captdam.com/avr-call-stack/zhhttps://captdam.com/avr-call-stack/zhCaptdamEmbedded-zh这篇文章将从底层硬件的角度讨论并展示AVR-GCC在调用子程序时的栈操作。Mon, 03 Mar 2025 05:02:24 +0000https://captdam.com/avr-call-stack/ldd-z.pnghttps://captdam.com/avr-call-stack/ldd-z.pngCaptdamContentSun, 02 Mar 2025 01:17:22 +0000https://captdam.com/avr-call-stack/ldd-y.pnghttps://captdam.com/avr-call-stack/ldd-y.pngCaptdamContentSun, 02 Mar 2025 01:17:18 +0000https://captdam.com/avr-call-stack/bgimg.jpeghttps://captdam.com/avr-call-stack/bgimg.jpegCaptdamContentSun, 02 Mar 2025 01:17:18 +0000https://captdam.com/avr-call-stack/indirect-address-mode.pnghttps://captdam.com/avr-call-stack/indirect-address-mode.pngCaptdamContentSun, 02 Mar 2025 01:17:04 +0000https://captdam.com/avr-call-stack/stacksim.csshttps://captdam.com/avr-call-stack/stacksim.cssCaptdamContentWed, 26 Feb 2025 06:21:19 +0000https://captdam.com/avr-call-stack/stacksim.jshttps://captdam.com/avr-call-stack/stacksim.jsCaptdamContentWed, 26 Feb 2025 06:21:13 +0000https://captdam.com/tilingpdf/map1.pnghttps://captdam.com/tilingpdf/map1.pngCaptdamContentFri, 01 Nov 2024 18:55:08 +0000https://captdam.com/tilingpdf/map2.pnghttps://captdam.com/tilingpdf/map2.pngCaptdamContentFri, 01 Nov 2024 18:54:32 +0000https://captdam.com/pdf-titleblock-gen/zhhttps://captdam.com/pdf-titleblock-gen/zhCaptdamComputer-zh生成PDF工程图，合并PDF文件，添加文字、图片与自定义标题栏，并生成目录。Sat, 21 Sep 2024 02:40:26 +0000https://captdam.com/pdf-titleblock-gen/enhttps://captdam.com/pdf-titleblock-gen/enCaptdamComputer-enMerge, add text, pictures and custom titleblock to PDF engineering drawing, and generate index.Fri, 20 Sep 2024 04:37:29 +0000https://captdam.com/pdf-titleblock-gen/poster.jpeghttps://captdam.com/pdf-titleblock-gen/poster.jpegCaptdamContentThu, 19 Sep 2024 03:22:48 +0000https://captdam.com/pdf-titleblock-gen/result.pdf.pnghttps://captdam.com/pdf-titleblock-gen/result.pdf.pngCaptdamContentWed, 18 Sep 2024 21:35:39 +0000https://captdam.com/pdf-titleblock-gen/example.csv.pnghttps://captdam.com/pdf-titleblock-gen/example.csv.pngCaptdamContentWed, 18 Sep 2024 21:35:06 +0000https://captdam.com/pdf-titleblock-gen/2.pdf.pnghttps://captdam.com/pdf-titleblock-gen/2.pdf.pngCaptdamContentWed, 18 Sep 2024 21:34:14 +0000https://captdam.com/pdf-titleblock-gen/1.pdf.pnghttps://captdam.com/pdf-titleblock-gen/1.pdf.pngCaptdamContentWed, 18 Sep 2024 21:33:55 +0000https://captdam.com/pdf-titleblock-gen/r1.pnghttps://captdam.com/pdf-titleblock-gen/r1.pngCaptdamContentWed, 18 Sep 2024 21:31:15 +0000https://captdam.com/pdf-titleblock-gen/tb.pnghttps://captdam.com/pdf-titleblock-gen/tb.pngCaptdamContentWed, 18 Sep 2024 05:24:38 +0000https://captdam.com/pdf-titleblock-gen/example.csvhttps://captdam.com/pdf-titleblock-gen/example.csvCaptdamContentWed, 18 Sep 2024 04:17:24 +0000https://captdam.com/pdf-titleblock-gen/result.pdfhttps://captdam.com/pdf-titleblock-gen/result.pdfCaptdamContentWed, 18 Sep 2024 03:55:02 +0000https://captdam.com/pdf-titleblock-gen/2.pdfhttps://captdam.com/pdf-titleblock-gen/2.pdfCaptdamContentWed, 18 Sep 2024 03:54:20 +0000https://captdam.com/pdf-titleblock-gen/1.pdfhttps://captdam.com/pdf-titleblock-gen/1.pdfCaptdamContentWed, 18 Sep 2024 03:53:46 +0000https://captdam.com/pdf-titleblock-gen/photo.jpghttps://captdam.com/pdf-titleblock-gen/photo.jpgCaptdamContentWed, 18 Sep 2024 03:52:56 +0000https://captdam.com/pdf-titleblock-gen/fusion-partbrowser.pnghttps://captdam.com/pdf-titleblock-gen/fusion-partbrowser.pngCaptdamContentSat, 07 Sep 2024 06:50:11 +0000https://captdam.com/pdf-titleblock-gen/src1.pnghttps://captdam.com/pdf-titleblock-gen/src1.pngCaptdamContentSat, 07 Sep 2024 06:49:55 +0000https://captdam.com/pdf-titleblock-gen/result1.pnghttps://captdam.com/pdf-titleblock-gen/result1.pngCaptdamContentSat, 07 Sep 2024 06:49:35 +0000https://captdam.com/pdf-titleblock-gen/idx1.pnghttps://captdam.com/pdf-titleblock-gen/idx1.pngCaptdamContentSat, 07 Sep 2024 06:49:15 +0000https://captdam.com/68hc11stringprint/zhhttps://captdam.com/68hc11stringprint/zhCaptdamEmbedded-zh这篇文章阐述字符串在内存中的结构，并讲解如何在电脑上通过C语言和单片机上通过汇编打印字符串。这篇文章将使用68HC11作为汇编的例子.Mon, 02 Sep 2024 22:56:10 +0000https://captdam.com/68hc11stringprint/enhttps://captdam.com/68hc11stringprint/enCaptdamEmbedded-enThis article illustrates string structure in memory and how to print string on PC using C and on microprocessor using assembly. Assembly language of 68HC11 is used as example.Mon, 02 Sep 2024 22:55:57 +0000https://captdam.com/68hc11stringprint/bgimg.jpeghttps://captdam.com/68hc11stringprint/bgimg.jpegCaptdamContentMon, 02 Sep 2024 22:55:28 +0000https://captdam.com/avr-naked-isr/enhttps://captdam.com/avr-naked-isr/enCaptdamEmbedded-enUsing naked interrupt service routine (ISR) in AVR developmentSun, 01 Sep 2024 02:23:20 +0000https://captdam.com/avr-naked-isr/zhhttps://captdam.com/avr-naked-isr/zhCaptdamEmbedded-zh在AVR开发中使用裸中断Sun, 01 Sep 2024 02:23:06 +0000https://captdam.com/avr-naked-isr/bgimg.jpeghttps://captdam.com/avr-naked-isr/bgimg.jpegCaptdamContentSun, 01 Sep 2024 00:36:14 +0000https://captdam.com/cncfabpcb/enhttps://captdam.com/cncfabpcb/enCaptdamEmbedded-enThis blog shows how I use KiCad to design a PCB, then use FlatCAM to generate the G-code for a CNC to engrave on copper plated board. This blog also discusses the challenges I encountered and my solutions.Sat, 31 Aug 2024 05:01:48 +0000https://captdam.com/cncfabpcb/zhhttps://captdam.com/cncfabpcb/zhCaptdamEmbedded-zh这一篇博客将展示我如何使用KiCad制作PCB工程文件并使用FlatCAM生成G-Code，最后使用CNC在覆铜板上雕刻出电路。这一篇博客还会讨论我所遇到的一些问题和我的解决方案。Sat, 31 Aug 2024 05:00:17 +0000https://captdam.com/cncfabpcb/finished3.jpeghttps://captdam.com/cncfabpcb/finished3.jpegCaptdamContentFri, 30 Aug 2024 02:43:26 +0000https://captdam.com/cncfabpcb/finished2.jpeghttps://captdam.com/cncfabpcb/finished2.jpegCaptdamContentFri, 30 Aug 2024 02:43:18 +0000https://captdam.com/cncfabpcb/mount-level2.jpeghttps://captdam.com/cncfabpcb/mount-level2.jpegCaptdamContentFri, 30 Aug 2024 02:43:11 +0000https://captdam.com/cncfabpcb/mount-level.jpeghttps://captdam.com/cncfabpcb/mount-level.jpegCaptdamContentThu, 29 Aug 2024 05:38:01 +0000https://captdam.com/cncfabpcb/finished.jpeghttps://captdam.com/cncfabpcb/finished.jpegCaptdamContentThu, 29 Aug 2024 05:20:47 +0000https://captdam.com/cncfabpcb/iso-depth.jpeghttps://captdam.com/cncfabpcb/iso-depth.jpegCaptdamContentThu, 29 Aug 2024 05:18:45 +0000https://captdam.com/cncfabpcb/mount-levelanalysis.pnghttps://captdam.com/cncfabpcb/mount-levelanalysis.pngCaptdamContentThu, 29 Aug 2024 04:39:55 +0000https://captdam.com/cncfabpcb/mount-badanalysis.pnghttps://captdam.com/cncfabpcb/mount-badanalysis.pngCaptdamContentThu, 29 Aug 2024 04:39:38 +0000https://captdam.com/cncfabpcb/mount-bad.jpeghttps://captdam.com/cncfabpcb/mount-bad.jpegCaptdamContentThu, 29 Aug 2024 04:36:38 +0000https://captdam.com/cncfabpcb/mount-good.jpeghttps://captdam.com/cncfabpcb/mount-good.jpegCaptdamContentThu, 29 Aug 2024 04:36:26 +0000https://captdam.com/cncfabpcb/isolation2.pnghttps://captdam.com/cncfabpcb/isolation2.pngCaptdamContentThu, 29 Aug 2024 04:11:30 +0000https://captdam.com/cncfabpcb/isolation1.pnghttps://captdam.com/cncfabpcb/isolation1.pngCaptdamContentThu, 29 Aug 2024 04:11:12 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+0000https://captdam.com/level-shifter/zhhttps://captdam.com/level-shifter/zhCaptdamEmbedded-zh介绍N沟道场效应管设计与二极管设计的电平转换器。这篇博客将会介绍两种设计的工作原理，提供贴片PCB走线与示波器时序图，并对比相互优缺点。Sat, 23 Dec 2023 21:06:21 +0000https://captdam.com/level-shifter/enhttps://captdam.com/level-shifter/enCaptdamEmbedded-enIntroduce two different level shifter for logic circuit design: the NMOS-based design and the diode-based design. 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This blog presents the format of MODBUS RTU packet, including the request from master to slave and the response form slave to master. This blog also shows how to ccompute the CRC-16 value for MODBUS packet in AVR assembly language.Sun, 20 Aug 2023 23:00:17 +0000https://captdam.com/modbus/zhhttps://captdam.com/modbus/zhCaptdamEmbedded-zhMODBUS与MODBUS RTU协议简介。这篇博客展示了MODBUS RTU请求与响应数据包的结构，并展示了如何使用AVR汇编对进行CRC-16计算。Sun, 20 Aug 2023 22:45:46 +0000https://captdam.com/w5500/sn_ir.pnghttps://captdam.com/w5500/sn_ir.pngCaptdamContentTue, 15 Aug 2023 04:34:22 +0000https://captdam.com/modbus/modbus-struct.pnghttps://captdam.com/modbus/modbus-struct.pngCaptdamContentSat, 29 Jul 2023 01:39:36 +0000https://captdam.com/modbus/bgimg.jpghttps://captdam.com/modbus/bgimg.jpgCaptdamContentSat, 29 Jul 2023 01:39:36 +0000https://captdam.com/modbus/transaction-signal.pnghttps://captdam.com/modbus/transaction-signal.pngCaptdamContentThu, 27 Jul 2023 04:39:00 +0000https://captdam.com/modbus/read-regs-reference-example.pnghttps://captdam.com/modbus/read-regs-reference-example.pngCaptdamContentThu, 27 Jul 2023 04:39:00 +0000https://captdam.com/modbus/plc-setup.pnghttps://captdam.com/modbus/plc-setup.pngCaptdamContentThu, 27 Jul 2023 04:39:00 +0000https://captdam.com/modbus/plc-send.pnghttps://captdam.com/modbus/plc-send.pngCaptdamContentThu, 27 Jul 2023 04:39:00 +0000https://captdam.com/modbus/modbus-transaction-ok.pnghttps://captdam.com/modbus/modbus-transaction-ok.pngCaptdamContentThu, 27 Jul 2023 04:39:00 +0000https://captdam.com/modbus/modbus-transaction-ng.pnghttps://captdam.com/modbus/modbus-transaction-ng.pngCaptdamContentThu, 27 Jul 2023 04:39:00 +0000https://captdam.com/opengl-non-consistencyhttps://captdam.com/opengl-non-consistencyCaptdamComputerInconsistencies I encountered during OpenGL and OpenGL ES dev.Mon, 01 May 2023 20:03:09 +0000https://captdam.com/avr-softuart-enhttps://captdam.com/avr-softuart-enCaptdamEmbeddedAVR UART Tx in software for ATtiny seriesSun, 23 Oct 2022 07:41:59 +0000https://captdam.com/setup-avr/software-spi.jpghttps://captdam.com/setup-avr/software-spi.jpgCaptdamContentSun, 23 Oct 2022 06:38:56 +0000https://captdam.com/setup-avr/control-circuit.jpghttps://captdam.com/setup-avr/control-circuit.jpgCaptdamContentSun, 23 Oct 2022 06:38:56 +0000https://captdam.com/setup-avr/control-board.jpghttps://captdam.com/setup-avr/control-board.jpgCaptdamContentSun, 23 Oct 2022 06:38:56 +0000https://captdam.com/setup-avr/calib-before.jpghttps://captdam.com/setup-avr/calib-before.jpgCaptdamContentSun, 23 Oct 2022 06:38:56 +0000https://captdam.com/setup-avr/calib-after.jpghttps://captdam.com/setup-avr/calib-after.jpgCaptdamContentSun, 23 Oct 2022 06:38:56 +0000https://captdam.com/setup-avr/arduinoISP.jpghttps://captdam.com/setup-avr/arduinoISP.jpgCaptdamContentSun, 23 Oct 2022 06:38:56 +0000https://captdam.com/setup-avrhttps://captdam.com/setup-avrCaptdamEmbedded通过配置AVR单片机的fuse bits，并对AVR的内部RC时钟进行校准，使AVR单片机达到所需要的工作状态Sun, 23 Oct 2022 06:38:56 +0000https://captdam.com/soc-axi/qsys.jpeghttps://captdam.com/soc-axi/qsys.jpegCaptdamContentThu, 14 Jan 2021 12:52:21 +0000https://captdam.com/soc-axihttps://captdam.com/soc-axiCaptdamEmbedded在开发SoC系统时关于AXI总线的一些记录Thu, 14 Jan 2021 10:28:18 +0000https://captdam.com/arduino-bootloaderhttps://captdam.com/arduino-bootloaderCaptdamEmbeddedATmega328P与Arduino，bootloader的原理与使用Thu, 17 Jan 2019 12:56:19 +0000https://captdam.com/ultrasonic-sensor/timing.jpghttps://captdam.com/ultrasonic-sensor/timing.jpgCaptdamContentThu, 20 Dec 2018 21:50:16 +0000https://captdam.com/ultrasonic-sensor/enhttps://captdam.com/ultrasonic-sensor/enCaptdamEmbeddedDistance measure using HC-SR04 ultrasonic sensor and MSC-51 MCU in assembly language.Thu, 20 Dec 2018 21:50:16 +0000https://captdam.com/software-spi.a51https://captdam.com/software-spi.a51CaptdamEmbeddedTue, 13 Nov 2018 12:05:36 +0000https://captdam.com/nixieclock51/zhhttps://captdam.com/nixieclock51/zhCaptdamEmbedded-zh作为一个老二次元技术宅怎么能拒绝拥有一台世界线变动率探测仪呢？那就用51单片机和辉光管做一个时钟吧。Wed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/workbench.jpghttps://captdam.com/nixieclock51/workbench.jpgCaptdamContentWed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/view2.jpghttps://captdam.com/nixieclock51/view2.jpgCaptdamContentWed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/view1.jpghttps://captdam.com/nixieclock51/view1.jpgCaptdamContentWed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/schematic2.pnghttps://captdam.com/nixieclock51/schematic2.pngCaptdamContentWed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/schematic1.pnghttps://captdam.com/nixieclock51/schematic1.pngCaptdamContentWed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/enhttps://captdam.com/nixieclock51/enCaptdamEmbedded-enYou can’t say no to nixie tubes if you are an electrical geek or you are a fan of Steins Gate, and you will want to build a clock using nixie tubes.Wed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/driverboard.jpghttps://captdam.com/nixieclock51/driverboard.jpgCaptdamContentWed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/dark2.jpghttps://captdam.com/nixieclock51/dark2.jpgCaptdamContentWed, 14 Feb 2018 06:11:30 +0000https://captdam.com/nixieclock51/dark1.jpghttps://captdam.com/nixieclock51/dark1.jpgCaptdamContentWed, 14 Feb 2018 06:11:30 +0000