/* * Print Example * * This sketch shows how to use the Arduino Print class with SdFat. */ #include #include // use functions to print strings from flash memory Sd2Card card; SdVolume volume; SdFile root; SdFile file; // store error strings in flash to save RAM #define error(s) error_P(PSTR(s)) void error_P(const char *str) { PgmPrint("error: "); SerialPrintln_P(str); if (card.errorCode()) { PgmPrint("SD error: "); Serial.print(card.errorCode(), HEX); Serial.print(','); Serial.println(card.errorData(), HEX); } while(1); } void setup(void) { Serial.begin(9600); Serial.println(); PgmPrintln("Type any character to start"); while (!Serial.available()); // initialize the SD card if (!card.init()) error("card.init"); // initialize a FAT volume if (!volume.init(card)) error("volume.init"); // open the root directory if (!root.openRoot(volume)) error("openRoot"); // create a new file char name[] = "PRINT00.TXT"; for (uint8_t i = 0; i < 100; i++) { name[5] = i/10 + '0'; name[6] = i%10 + '0'; // only create new file for write if (file.open(root, name, O_CREAT | O_EXCL | O_WRITE)) break; } if (!file.isOpen()) error ("file.create"); PgmPrintln("Printing to: "); Serial.println(name); // clear print error file.writeError = 0; // print 100 line to file for (uint8_t i = 0; i < 100; i++) { file.print("line "); file.print(i, DEC); file.print(" millis = "); file.println(millis()); } // force write of all data to the SD card if (file.writeError || !file.sync()) error ("print or sync"); PgmPrintln("Done"); } void loop(void){}