I have got SPI0 working without problems when I can read and write on the SD Card. Now I want to use SP1 and I can't initialize the SD Card.
I'm using the alternate pins on the T3.5.
What am I missing? Do you have any ideas?
Thank you!
I'm using the alternate pins on the T3.5.
What am I missing? Do you have any ideas?
Thank you!
Code:
#include <SPI.h>
#include "SdFat.h"
SdFat SD;
#define SD_CARD_CS_PIN 31
#define SD_CARD_MOSI_PIN 0
#define SD_CARD_SCK_PIN 32
#define SD_CARD_MISO_PIN 1
File myFile;
void setup() {
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
pinMode(SD_CARD_CS_PIN, OUTPUT);
SPI1.setMOSI(SD_CARD_MOSI_PIN);
SPI1.setMISO(SD_CARD_MISO_PIN);
SPI1.setSCK(SD_CARD_SCK_PIN);
SPI1.begin();
Serial.print("Initializing SD card...");
if (!SD.begin(SD_CARD_CS_PIN)) {
Serial.println("initialization failed!");
return;
}
Serial.println("initialization done.");
// open the file. note that only one file can be open at a time,
// so you have to close this one before opening another.
myFile = SD.open("test.txt", FILE_WRITE);
// if the file opened okay, write to it:
if (myFile) {
Serial.print("Writing to test.txt...");
myFile.println("testing 1, 2, 3.");
// close the file:
myFile.close();
Serial.println("done.");
} else {
// if the file didn't open, print an error:
Serial.println("error opening test.txt");
}
// re-open the file for reading:
myFile = SD.open("test.txt");
if (myFile) {
Serial.println("test.txt:");
// read from the file until there's nothing else in it:
while (myFile.available()) {
Serial.write(myFile.read());
}
// close the file:
myFile.close();
} else {
// if the file didn't open, print an error:
Serial.println("error opening test.txt");
}
}
void loop() {
// nothing happens after setup
}