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Combining MemoryCard and SdFat libraries into SD library.

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Defaulting to CS pin 4 (for Arduino Ethernet Shield).  Holding the SS pin high (for disabling W5100 on the Ethernet Shield).
This commit is contained in:
David A. Mellis
2010-11-13 14:01:37 -05:00
parent 676ca6aebc
commit 6e449d7f5b
35 changed files with 43 additions and 65 deletions
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71
libraries/SD/utility/examples/SdFatPrint/SdFatPrint.pde Executable file
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/*
* Print Example
*
* This sketch shows how to use the Arduino Print class with SdFat.
*/
#include <SdFat.h>
#include <SdFatUtil.h> // 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 at SPI_HALF_SPEED to avoid bus errors with
// breadboards. use SPI_FULL_SPEED for better performance.
if (!card.init(SPI_HALF_SPEED)) error("card.init failed");
// initialize a FAT volume
if (!volume.init(&card)) error("volume.init failed");
// open the root directory
if (!root.openRoot(&volume)) error("openRoot failed");
// 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){}