SD.ino

#include "./SD.h"

Sd_t sd;


// フォルダ分け or 接頭辞
// #define SD_IS_MKDIR


void SD_Init() {
	sd.logFileName = "log.txt";

	pinMode(PIN_SD_SS, OUTPUT);

	if (!SD.begin(PIN_SD_SS)) {
		Serial.println(F("SD: init failed!"));
		while (1);
	}


	strcpy(sd.DirName, "D000");
	for (uint16_t i = 0; i <= 1000; i++) {
		if (i == 1000) {
			Serial.println(F("SD: Number of Folder is MAX!"));
			while (1);
		}

		sd.DirName[1] = '0' + i/100;
		sd.DirName[2] = '0' + (i/10)%10;
		sd.DirName[3] = '0' + i%10;
		if (! SD.exists(SD_GetDirName() + sd.logFileName) ) {
			#ifdef SD_IS_MKDIR
				SD.mkdir(sd.DirName);		// フォルダわけではなく，接頭辞の場合コメントアウト！
			#else
			#endif
			break;
		}
	}


	// File logFile = SD.open(SD_GetDirName() + sd.logFileName, FILE_WRITE);
	// if (logFile) {
	// 	// logFile.println("testing 1, 2, 3.");
	// 	logFile.println(F("START UP!!"));
	// 	// logFile.close();
	// 	Serial.println(F("SD: Write done"));
	// } else {
	// 	// if the file didn't open, print an error:
	// 	Serial.println(F("SD: error opening file"));
	// }
	// logFile.close();

	SD_Write(F("START UP!!"));

	Serial.println(F("SD init done."));
}


void SD_Write(String str) {
	File logFile = SD.open(SD_GetDirName() + sd.logFileName, FILE_WRITE);

	if (logFile) {
		logFile.println("[" + String(millis()) + "]\t" + str);
		// close the file:
		logFile.close();
		Serial.println(F("SD: Write OK"));
	} else {
		// if the file didn't open, print an error:
		Serial.println(F("SD: Open Error"));
	}

	logFile.close();
}


String SD_GetDirName() {
	#ifdef SD_IS_MKDIR
		return (String(sd.DirName) + "/");
	#else
		return (String(sd.DirName) + "_");
	#endif
}