// Enumerate and possibly display the animated GIF filenames in GIFS directory
int enumerateGIFFiles(const char *directoryName, boolean displayFilenames) {
numberOfFiles = 0;
// Set the current working directory
if (! sd.chdir(directoryName, true)) {
sd.errorHalt("Could not change to gifs directory");
}
sd.vwd()->rewind();
char fn[13];
while (file.openNext(sd.vwd(), O_READ)) {
file.getName(fn, 13);
// If filename not deleted, count it
if (fn[0] != '_') {
numberOfFiles++;
if (displayFilenames) {
Serial.println(fn);
delay(20);
}
}
file.close();
}
// Set the current working directory
if (! sd.chdir("/", true)) {
sd.errorHalt("Could not change to root directory");
}
return numberOfFiles;
}
// Get the full path/filename of the GIF file with specified index
void getGIFFilenameByIndex(const char *directoryName, int index, char *pnBuffer) {
char filename[13];
// Make sure index is in range
if ((index >= 0) && (index < numberOfFiles)) {
// Set the current working directory
if (! sd.chdir(directoryName, true)) {
sd.errorHalt("Could not change to gifs directory");
}
// Make sure file is closed before starting
file.close();
// Rewind the directory to the beginning
sd.vwd()->rewind();
while ((file.openNext(sd.vwd(), O_READ)) && (index >= 0)) {
file.getName(filename, 13);
// If filename is not marked as deleted, count it
if ((filename[0] != '_') && (filename[0] != '~')) {
index--;
}
file.close();
}
// Set the current working directory back to root
if (! sd.chdir("/", true)) {
sd.errorHalt("Could not change to root directory");
}
// Copy the directory name into the pathname buffer
strcpy(pnBuffer, directoryName);
// Append the filename to the pathname
strcat(pnBuffer, filename);
}
}
uint32_t SD_GetFileSize(void)
{
uint32_t retVal = 0;
//TEST.TXT
sdf.chdir(); // Change directory to root
// OPEN the file for reading:
if (!file.open("TEST.TXT", O_READ)) {
sdf.errorHalt("opening FILE for read failed");
}
else
{
retVal = file.fileSize();
file.close();
}
return retVal;
}
boolean SD_ReadFile(const char *filename)
{
uint32_t t_arrival = millis();
boolean retVal = false;
sdf.chdir();
if (!file.open(filename, O_READ)) {
sdf.errorHalt("opening FILE for read failed");
}
else
{
uint32_t len = file.fileSize();
uint8_t index = 0;
for(uint32_t i=0; i< len; i++)
{
int intData = file.read();
char byteData;
int base = 10u;
//itoa(intData,&byteData,base); // Convert to ASCII
buffer[index] = (uint8_t)intData;//byteData;
if(index < 63u) {
index++;
}
else {
usb_rawhid_send(buffer, 100u);
index = 0;
}
}
file.close();
uint32_t t_exit = millis() - t_arrival;
buffer[62] = (uint8_t)((t_exit & 0x000000FF)>>8);
buffer[63] = (uint8_t)t_exit;
usb_rawhid_send(buffer,100u);
}
}
void MP3Player::PlayTrack(const char* dirName,int track_no,const char* track_name)
{
if(!PLAY)
{
finishSearch = false;
int count=0;
//if(track_no>0)
//counter = track_no;
if(!isPlayAll)
{
char temp[20];
isPlayAll = true;
sd.chdir();delayMicroseconds(100000);
sd.chdir(dirName,true);
sd.vwd()->rewind();
sd.vwd()->getName(temp,20);
currentDir = temp;
counter = 0;
}
while(true)
{
if(myFile.openNext(myFile.cwd(), O_READ))
{
char FileName[80];
myFile.getName(FileName,80);
#if DEBUG
//myFile.printName(&Serial);
Serial.print(FileName);
if (myFile.isDir())
{
// Indicate a directory.
Serial.write('/');
}
Serial.println();
#endif
if (!(myFile.isDir()||(String(FileName).indexOf(".mp3")==-1&&String(FileName).indexOf(".MP3")==-1)))
{
counter++;
if(ls_flag)
{
Serial.print(counter);
Serial.print(". ");
Serial.print(FileName);
Serial.print(" ");
Serial.print(myFile.fileSize());
Serial.println(" bytes");
myFile.close();
continue;
}
//Play(FileName);
if(!String(track_name).equals(""))
{
//counter++;
if(String(track_name).equals(FileName))
{
Play(FileName);
//name = track_name;
isPlayAll = false;
break;
}
}
else if(track_no==0)
{
//counter++;
Play(FileName);
break;
}
else if(track_no>0)
{
count++;
if(count==track_no)
{
counter = track_no;
Play(FileName);
isPlayAll = false;
break;
}
}
}
}
else
{
isPlayAll = false;
finishSearch = true;
ls_flag = false;
break;
}
//myFile.getFilename(FileName);
myFile.close();
}
}
}
//------------------------------------------------------------------------------
void setup() {
Serial.begin(9600);
// Wait for USB Serial
while (!Serial) {
SysCall::yield();
}
delay(1000);
cout << F("Type any character to start\n");
// Wait for input line and discard.
cin.readline();
cout << endl;
// Initialize the SD card at SPI_HALF_SPEED to avoid bus errors with
// breadboards. use SPI_FULL_SPEED for better performance.
if (!sd.begin(SD_CHIP_SELECT, SPI_HALF_SPEED)) {
sd.initErrorHalt();
}
if (sd.exists("Folder1")
|| sd.exists("Folder1/file1.txt")
|| sd.exists("Folder1/File2.txt")) {
error("Please remove existing Folder1, file1.txt, and File2.txt");
}
int rootFileCount = 0;
sd.vwd()->rewind();
while (file.openNext(sd.vwd(), O_READ)) {
if (!file.isHidden()) {
rootFileCount++;
}
file.close();
if (rootFileCount > 10) {
error("Too many files in root. Please use an empty SD.");
}
}
if (rootFileCount) {
cout << F("\nPlease use an empty SD for best results.\n\n");
delay(1000);
}
// Create a new folder.
if (!sd.mkdir("Folder1")) {
error("Create Folder1 failed");
}
cout << F("Created Folder1\n");
// Create a file in Folder1 using a path.
if (!file.open("Folder1/file1.txt", O_CREAT | O_WRITE)) {
error("create Folder1/file1.txt failed");
}
file.close();
cout << F("Created Folder1/file1.txt\n");
// Change volume working directory to Folder1.
if (!sd.chdir("Folder1")) {
error("chdir failed for Folder1.\n");
}
cout << F("chdir to Folder1\n");
// Create File2.txt in current directory.
if (!file.open("File2.txt", O_CREAT | O_WRITE)) {
error("create File2.txt failed");
}
file.close();
cout << F("Created File2.txt in current directory\n");
cout << F("\nList of files on the SD.\n");
sd.ls("/", LS_R);
// Remove files from current directory.
if (!sd.remove("file1.txt") || !sd.remove("File2.txt")) {
error("remove failed");
}
cout << F("\nfile1.txt and File2.txt removed.\n");
// Change current directory to root.
if (!sd.chdir()) {
error("chdir to root failed.\n");
}
cout << F("\nList of files on the SD.\n");
sd.ls(LS_R);
// Remove Folder1.
if (!sd.rmdir("Folder1")) {
error("rmdir for Folder1 failed\n");
}
cout << F("\nFolder1 removed.\n");
cout << F("\nList of files on the SD.\n");
sd.ls(LS_R);
cout << F("Done!\n");
}