Working on audio guestbook project. Teensy 4.0 connected to Audio Shield Rev D2.
I have tested continuity between pins on Teensy and headers/pins on the Audio Shield for pins GND, 5V, 7, 10, and 14. I run this code:
I receive the response:
Initializing SD card...initialization failed. Things to check:
* is a card inserted?
* is your wiring correct?
* did you change the chipSelect pin to match your shield or module?
I have tried four different SD cards.
I don't know what to do/try next. Any suggestions?
I have tested continuity between pins on Teensy and headers/pins on the Audio Shield for pins GND, 5V, 7, 10, and 14. I run this code:
Code:
/*
SD card test
This example shows how use the utility libraries on which the'
SD library is based in order to get info about your SD card.
Very useful for testing a card when you're not sure whether its working or not.
The circuit:
* SD card attached to SPI bus as follows:
** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila, pin 7 on Teensy with audio board
** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila
** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila, pin 14 on Teensy with audio board
** CS - depends on your SD card shield or module - pin 10 on Teensy with audio board
Pin 4 used here for consistency with other Arduino examples
created 28 Mar 2011
by Limor Fried
modified 9 Apr 2012
by Tom Igoe
*/
// include the SD library:
#include <SD.h>
#include <SPI.h>
// set up variables using the SD utility library functions:
Sd2Card card;
SdVolume volume;
SdFile root;
// change this to match your SD shield or module;
// Arduino Ethernet shield: pin 4
// Adafruit SD shields and modules: pin 10
// Sparkfun SD shield: pin 8
// Teensy audio board: pin 10
// Teensy 3.5 & 3.6 & 4.1 on-board: BUILTIN_SDCARD
// Wiz820+SD board: pin 4
// Teensy 2.0: pin 0
// Teensy++ 2.0: pin 20
const int chipSelect = 10;
void setup()
{
//UNCOMMENT THESE TWO LINES FOR TEENSY AUDIO BOARD:
SPI.setMOSI(7); // Audio shield has MOSI on pin 7
SPI.setSCK(14); // Audio shield has SCK on pin 14
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect.
}
Serial.print("\nInitializing SD card...");
// we'll use the initialization code from the utility libraries
// since we're just testing if the card is working!
if (!card.init(SPI_HALF_SPEED, chipSelect)) {
Serial.println("initialization failed. Things to check:");
Serial.println("* is a card inserted?");
Serial.println("* is your wiring correct?");
Serial.println("* did you change the chipSelect pin to match your shield or module?");
return;
} else {
Serial.println("Wiring is correct and a card is present.");
}
// print the type of card
Serial.print("\nCard type: ");
switch(card.type()) {
case SD_CARD_TYPE_SD1:
Serial.println("SD1");
break;
case SD_CARD_TYPE_SD2:
Serial.println("SD2");
break;
case SD_CARD_TYPE_SDHC:
Serial.println("SDHC");
break;
default:
Serial.println("Unknown");
}
// Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32
if (!volume.init(card)) {
Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
return;
}
// print the type and size of the first FAT-type volume
uint32_t volumesize;
Serial.print("\nVolume type is FAT");
Serial.println(volume.fatType(), DEC);
Serial.println();
volumesize = volume.blocksPerCluster(); // clusters are collections of blocks
volumesize *= volume.clusterCount(); // we'll have a lot of clusters
if (volumesize < 8388608ul) {
Serial.print("Volume size (bytes): ");
Serial.println(volumesize * 512); // SD card blocks are always 512 bytes
}
Serial.print("Volume size (Kbytes): ");
volumesize /= 2;
Serial.println(volumesize);
Serial.print("Volume size (Mbytes): ");
volumesize /= 1024;
Serial.println(volumesize);
//Serial.println("\nFiles found on the card (name, date and size in bytes): ");
//root.openRoot(volume);
// list all files in the card with date and size
//root.ls(LS_R | LS_DATE | LS_SIZE);
}
void loop(void) {
}I receive the response:
Initializing SD card...initialization failed. Things to check:
* is a card inserted?
* is your wiring correct?
* did you change the chipSelect pin to match your shield or module?
I have tried four different SD cards.
I don't know what to do/try next. Any suggestions?
