ç¾å¨åºãæ®åãã¦ããã¡ã¢ãªã«ã¼ãã®ã²ã¨ã¤ã«ãSDã¡ã¢ãªã«ã¼ã(Secure Digital Memory Card)ãããã¾ããSDã¡ã¢ãªã«ã¼ã(以ä¸SDCã¨è¡¨è¨)ã¯ããã«ãã¡ãã£ã¢ã«ã¼ã(Multi-Media Cardã以ä¸MMCã¨è¡¨è¨)ä¸ä½äºæã®ã·ã¹ãã ã¨ãã¦éçºããããã®ã§ãSDC対å¿æ©å¨ã¯ããã¤ãã®èæ ®ã ãã§MMCãåãã½ã±ããã§ä½¿ããã¨ãã§ãã¾ãããããã®ã¡ã¢ãªã«ã¼ãã«ã¯ãæ©è½ã¯ãã®ã¾ã¾ã§å¤å½¢ã ãå°ååãããããªã¨ã¼ã·ã§ã³ãããã¾ããMMC/SDCã¯å é¨ã«ãã¤ã³ã³ãæã¡ããã©ãã·ã¥ ã¡ã¢ãªã®å¶å¾¡(æ¶å»ãæ¸ãè¾¼ã¿ãã¨ã©ã¼å¶å¾¡ãæ¶èåçåãªã©)ã¯å é¨ã§å®çµãã¦ãã¾ãããã¼ã¿ã®èªã¿æ¸ãã¯åºæ¬çã«ãããã¯(512ãã¤ã)åä½ã¨ãªãããã®ç¹ã§ãã¼ããã£ã¹ã¯ãªã©ã®æ±ç¨ã¹ãã¬ã¼ã¸ããã¤ã¹ã¨å¤ããã¨ããã¯ããã¾ããããã¡ã¤ã«ã·ã¹ãã ã«ã¯FATã¾ãã¯exFATãæ¡ç¨ããã¦ãã¾ãã ç¾å¨ãMMCã¯
Achtung dieses Projekt ist einige Jahre alt, ich möchte es nicht löschen aus sentimentalen Gründen. Eine Anbindung der MMC / SD Karte würde ich so nicht mehr realisieren. Auch die Software zeigten meine ersten schritte in der Programmiersprache C. Heute würde dieses Projekt meinen Ansprüchen so nicht mehr genügen. Für manche Projekte benötigt man mehrere Mega-Byte Speicher. Z.B. für einen MP3Playe
ãã«ãã¡ãã£ã¢ã«ã¼ã ããæ¥ããã·ãã·ï¼åºåï¼ã§ã4MBã®ãã«ãã¡ãã£ã¢ã«ã¼ãã20æã»ããã§\2000ã¨ããã®ãè¦ã¤ãã¾ããã ãã®ãå¿ è¦æå°éã®ä½¿ãæ¹ãããã«ã¾ã¨ãã¾ãã 詳ããã¯ãã¼ã¿ã·ã¼ããªã©ãè¦ã¦ãã ããã 以ä¸ãã«ãã¡ãã£ã¢ã«ã¼ããMMCã¨å¼ã³ã¾ãã âSPIã¢ã¼ã MMCãèªãã ãæ¸ãããããããã«ã¯ãMMCã¨éä¿¡ããå¿ è¦ãããã¾ããMMCã¨ã®éä¿¡æ¹æ³ã«ã¯ãMMCã¢ã¼ãã¨SPIã¢ã¼ãããã£ã¦ãSPIã¢ã¼ãã®ã»ããç°¡åã§ããSPIã¢ã¼ãã§ã¯SPIéä¿¡ã¨å¼ã°ãã¦ããéä¿¡æ¹æ³ã使ã£ã¦éä¿¡ãã¾ããã¯ããã¯ããã¼ã¿inããã¼ã¿outã®3æ¬ã®ä¿¡å·ç·ã使ã£ãã·ãªã¢ã«éä¿¡ã§ãã â SPIã¢ã¼ãã®ãã³ã»ã¢ãµã¤ã³ å ãã¯é ç·ã§ããMMCã¯SDã«ã¼ãã¨å¤§ããããã³ãªã©ã«äºææ§ãããã¾ããããç§æé»åãªã©ã§å£²ã£ã¦ã(2005/03) SDã«ã¼ãç¨ã®ã³ãã¯ã¿ã使ç¨ã§ãã¾ãããã¼ã¿ã·ã¼ãã«å ¥ããã¨æ¸ãã¦
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ã¾ã æ¸ãããã§ãããªã³ã¯éã¨ãã¦ã²ã¨ã¾ãupãã¦ããã¾ãã åèè³æ F.Foustæ°ã®ã"Secure Digital Card Interface for the MSP430" é常ã«åèã«ãªãã¾ããCã§æ¸ãããSD Cardæä½é¢æ°ã¾ã§ã¤ãã¦ãã¾ãã ä¸æ¬¡é å¸å ãè¯ãããããªãã®ã§ãªã³ã¯ã¯å¼µãã¾ããããGoogle㧠"Foust SD Card MSP430"ããã¼ã¯ã¼ãã«æ¤ç´¢ãã¦ã¿ã¦ãã ããã SanDiskã®OEMåãProduct Manual ããªã詳細ã«SD Cardã®ä»æ§ãæ¸ãã¦ããã¦ããã¾ãã ç¾å¨ãSanDisk社ããã¯ãã¦ã³ãã¼ãã§ããªããããªã®ã§ã Google "SanDisk-Secure-Digital-Card Product-Manual" ã§è¦ã¤ãã¦ãã ããã SD Associationã® "Simplified Version of PHYSI
MultiMedia and SD Flash Card Interface (mmc.c) [Drivers (for external hardware)] Detailed Description DescriptionThis library offers some simple functions which can be used to read and write data on a MultiMedia or SecureDigital (SD) Flash Card. Although MM and SD Cards are designed to operate with their own special bus wiring and protocols, both types of cards also provide a simple SPI-like inte
Byte Buffering (circular) Bit Buffering (linear) Printf and other formatted print functions VT100 Terminal Output Command Line Interface FAT16/32 File System (support is read-only for now) STX/ETX Packet Protocol Fixed-Point Math Library (basic operations only) Timers (with PWM, interrupt management) UART (interrupt driven) A/D Converter I2C Master/Slave (interrupt and non-intr) SPI In
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