/**
* Function starts the SD card service and makes sure that the appropriate directory
* structure exists, then creates the file to use for logging data. Data will be logged
* to a file called fileNamePrefix_0.csv or fileNamePrefix_0.bin (number will be incremented
* for each new log file)
*
* @param chipSelectPin Arduino pin SD card reader CS pin is attached to
* @param fileNamePrefix string to prefix at beginning of data file
* @param csvData boolean flag whether we are writing csv data or binary data (used for filename)
*
* @return true if successful, false if failed
*/
bool beginDataLog(int chipSelectPin, const char *fileNamePrefix, bool csvData)
{
bool ret;
int i = 0;
int max_len;
char fileName[19];
char prefix[8];
char rootPath[] = "/data";
if (_output_buffer != NULL) {
delete []_output_buffer;
}
OUTPUT_BUF_SIZE = 512;
_output_buffer = vol.cacheAddress()->output_buf;
if (freeMemory() < 400) {
strcpy_P(_getOutBuf(), sd_card_error);
Serial.print(_getOutBuf());
Serial.print(freeMemory());
Serial.println(", need 400)");
ret = false;
} else {
ret = sd.begin(chipSelectPin, SPI_FULL_SPEED);
}
//Filenames need to fit the 8.3 filename convention, so truncate down the
//given filename if it is too long.
memcpy(prefix, fileNamePrefix, 7);
prefix[7] = '\0';
if (ret) {
if (!sd.exists(rootPath))
ret = sd.mkdir(rootPath);
if (ret) {
while (true) {
if (i < 10) {
max_len = 7;
} else if (i < 100) {
max_len = 6;
} else if (i < 1000) {
max_len = 5;
} else {
break;
}
prefix[max_len - 1] = '\0';
sprintf(fileName, "%s/%s%d.%s", rootPath, prefix, i,
csvData ? "csv" : "bin");
if (!sd.exists(fileName)) {
file = sd.open(fileName, FILE_WRITE);
break;
}
i++;
}
}
}
return file.isOpen();
}
void enterStart() {
// Read configuration from Flash
Time.zone(-6); // TODO: store in Flash and add configuration
// Display splash screen
Display.print("Mane Avis v");
Display.println(MANE_AVIS_VERSION);
Display.print("Firmware: ");
Display.println(System.version());
// TODO: display a real splash screen
// Read alarms from SD card
if(sd.exists(STORE)) {
digitalWrite(D7, HIGH);
if(!store.open(STORE, O_READ)) {
error("Failed to open store");
return;
}
String line;
while((line = store.readStringUntil('\r')) != NULL) {
alarms.add(line);
store.read(); // clear '\n'
}
}
store.close();
digitalWrite(D7, LOW);
}
bool open(char* fileName) {
// Create LDxxxx.CSV for the lowest value of x.
#ifdef SDCARD
uint16_t i = 0;
do {
fileName[2] = (i/1000) % 10 + '0';
fileName[3] = (i/100) % 10 + '0';
fileName[4] = (i/10) % 10 + '0';
fileName[5] = i % 10 + '0';
i++;
}
while(sd.exists(fileName));
if(!file.open(fileName, O_CREAT | O_WRITE | O_EXCL)) {
// error_P("file open");
return false;
}
file.clearWriteError();
// write data header
file.print("time (s)");
#endif
Serial.print("v");
Serial.println(FIRMWARE_VERSION);
Serial.print("File: ");
Serial.println(fileName);
// write data header
Serial.print("time (s)");
/* We are no longer using the junction temperature in our data output.
// write data header
file.print("time (s), ambient");
Serial.print("time (s), ambient");
switch(temperatureUnit) {
case TEMPERATURE_UNITS_C:
file.print(" (C)");
Serial.print(" (C)");
break;
case TEMPERATURE_UNITS_F:
file.print(" (F)");
Serial.print(" (F)");
break;
case TEMPERATURE_UNITS_K:
file.print(" (K)");
Serial.print(" (K)");
break;
}*/
for (uint8_t i = 0; i < SENSOR_COUNT; i++) {
#ifdef SDCARD
file.print(", temp_");
file.print(i, DEC);
#endif
Serial.print(", temp_");
Serial.print(i, DEC);
switch(temperatureUnit) {
case TEMPERATURE_UNITS_C:
#ifdef SDCARD
file.print(" (C)");
#endif
Serial.print(" (C)");
break;
case TEMPERATURE_UNITS_F:
#ifdef SDCARD
file.print(" (F)");
#endif
Serial.print(" (F)");
break;
case TEMPERATURE_UNITS_K:
#ifdef SDCARD
file.print(" (K)");
#endif
Serial.print(" (K)");
break;
}
}
#ifdef SDCARD
file.println();
file.flush();
#endif
Serial.println();
#ifdef SDCARD
return (file.getWriteError() == false);
#else
return true;
#endif
}
void SDcard::removefile(){
if (SD.exists("data.txt")) {
SD.remove("data.txt");
}
}
void startBinLogger(void (*dateTime)(uint16_t *date, uint16_t *time)){
#ifdef LOGGER_DEBUG
Serial.print("Size of Struct: ");
Serial.println(sizeof(salus_data_t));
Serial.print("Data_DIM: ");
Serial.println(DATA_DIM);
Serial.print("FILL_DIM: ");
Serial.println(FILL_DIM);
Serial.print("Sizeof Block: ");
Serial.println(sizeof(block_t));
Serial.println();
#endif
if (!sd.begin(SD_CHIPSELECT, SD_SPI_SPEED)) {
sd.initErrorHalt();
}
int number = 0;
char sName[80];
// Find a filename that hasn't been used already
do
{
sprintf(sName, "Salus_Results_%d.bin", number++);
} while (sd.exists(sName));
binFile.close();
binFile.dateTimeCallback(dateTime);
if (!binFile.createContiguous(sd.vwd(), sName, 512 * FILE_BLOCK_COUNT)){
error("createContiguous failed");
}
if (!binFile.contiguousRange(&bgnBlock, &endBlock)){
error("contiguousRange failed");
}
// Use SdFat's internal buffer ( ???? )
uint8_t* cache = (uint8_t*)sd.vol()->cacheClear();
if (cache == 0) {
error("cacheClear failed");
}
binFile.dateTimeCallbackCancel();
uint32_t bgnErase = bgnBlock;
uint32_t endErase;
while (bgnErase < endBlock) {
endErase = bgnErase + ERASE_SIZE;
if (endErase > endBlock) {
endErase = endBlock;
}
if (!sd.card()->erase(bgnErase, endErase)) {
error("erase failed");
}
bgnErase = endErase + 1;
}
// Start a multiple block write.
if (!sd.card()->writeStart(bgnBlock, FILE_BLOCK_COUNT)) {
error("writeBegin failed");
}
}
//------------------------------------------------------------------------------
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");
}