#include "sd_card.h" void SdCard::init() { SPIClass* sd_spi = new SPIClass(HSPI); // another SPI if (!SD.begin(15, *sd_spi)) // SD-Card SS pin is 15 { Serial.println("Card Mount Failed"); return; } uint8_t cardType = SD.cardType(); if (cardType == CARD_NONE) { Serial.println("No SD card attached"); return; } Serial.print("SD Card Type: "); if (cardType == CARD_MMC) { Serial.println("MMC"); } else if (cardType == CARD_SD) { Serial.println("SDSC"); } else if (cardType == CARD_SDHC) { Serial.println("SDHC"); } else { Serial.println("UNKNOWN"); } uint64_t cardSize = SD.cardSize() / (1024 * 1024); Serial.printf("SD Card Size: %lluMB\n", cardSize); } void SdCard::listDir(const char* dirname, uint8_t levels) { Serial.printf("Listing directory: %s\n", dirname); File root = SD.open(dirname); if (!root) { Serial.println("Failed to open directory"); return; } if (!root.isDirectory()) { Serial.println("Not a directory"); return; } File file = root.openNextFile(); while (file) { if (file.isDirectory()) { Serial.print(" DIR : "); Serial.println(file.name()); if (levels) { listDir(file.name(), levels - 1); } } else { Serial.print(" FILE: "); Serial.print(file.name()); Serial.print(" SIZE: "); Serial.println(file.size()); } file = root.openNextFile(); } } void SdCard::createDir(const char* path) { Serial.printf("Creating Dir: %s\n", path); if (SD.mkdir(path)) { Serial.println("Dir created"); } else { Serial.println("mkdir failed"); } } void SdCard::removeDir(const char* path) { Serial.printf("Removing Dir: %s\n", path); if (SD.rmdir(path)) { Serial.println("Dir removed"); } else { Serial.println("rmdir failed"); } } void SdCard::readFile(const char* path) { Serial.printf("Reading file: %s\n", path); File file = SD.open(path); if (!file) { Serial.println("Failed to open file for reading"); return; } Serial.print("Read from file: "); while (file.available()) { Serial.write(file.read()); } file.close(); } String SdCard::readFileLine(const char* path, int num = 1) { Serial.printf("Reading file: %s\n", path); File file = SD.open(path); if (!file) { return ("Failed to open file for reading"); } char* p = buf; while (file.available()) { char c = file.read(); if (c == '\n') { num--; if (num == 0) { *(p++) = '\0'; return String(buf); } } else if (num == 1) { *(p++) = c; } } file.close(); return String("error parameter!"); } void SdCard::writeFile(const char* path, const char* message) { Serial.printf("Writing file: %s\n", path); File file = SD.open(path, FILE_WRITE); if (!file) { Serial.println("Failed to open file for writing"); return; } if (file.print(message)) { Serial.println("File written"); } else { Serial.println("Write failed"); } file.close(); } void SdCard::appendFile(const char* path, const char* message) { Serial.printf("Appending to file: %s\n", path); File file = SD.open(path, FILE_APPEND); if (!file) { Serial.println("Failed to open file for appending"); return; } if (file.print(message)) { Serial.println("Message appended"); } else { Serial.println("Append failed"); } file.close(); } void SdCard::renameFile(const char* path1, const char* path2) { Serial.printf("Renaming file %s to %s\n", path1, path2); if (SD.rename(path1, path2)) { Serial.println("File renamed"); } else { Serial.println("Rename failed"); } } void SdCard::deleteFile(const char* path) { Serial.printf("Deleting file: %s\n", path); if (SD.remove(path)) { Serial.println("File deleted"); } else { Serial.println("Delete failed"); } } void SdCard::fileIO(const char* path) { File file = SD.open(path); static uint8_t buf[512]; size_t len = 0; uint32_t start = millis(); uint32_t end = start; if (file) { len = file.size(); size_t flen = len; start = millis(); while (len) { size_t toRead = len; if (toRead > 512) { toRead = 512; } file.read(buf, toRead); len -= toRead; } end = millis() - start; Serial.printf("%u bytes read for %u ms\n", flen, end); file.close(); } else { Serial.println("Failed to open file for reading"); } file = SD.open(path, FILE_WRITE); if (!file) { Serial.println("Failed to open file for writing"); return; } size_t i; start = millis(); for (i = 0; i < 2048; i++) { file.write(buf, 512); } end = millis() - start; Serial.printf("%u bytes written for %u ms\n", 2048 * 512, end); file.close(); }