STA모드 추가

sdcard_task.cpp

@@ -2,7 +2,7 @@
 #include "serial_task.h"
 #include <time.h>
 
-static SPIClass hspi(HSPI);
+static SPIClass vspi(VSPI);
 volatile bool sdLoggingActive = false;
 char currentLogFileName[64] = "";
 static File logFile;
@@ -12,9 +12,9 @@ static SemaphoreHandle_t sdMutex = NULL;
 void sdTaskInit() {
   sdMutex = xSemaphoreCreateMutex();
 
-  hspi.begin(SD_HSPI_CLK, SD_HSPI_MISO, SD_HSPI_MOSI, SD_HSPI_CS);
+  vspi.begin(SD_VSPI_SCLK, SD_VSPI_MISO, SD_VSPI_MOSI, SD_VSPI_CS);
 
-  if (!SD.begin(SD_HSPI_CS, hspi, 4000000)) {
+  if (!SD.begin(SD_VSPI_CS, vspi, 4000000)) {
     Serial.println("[SD] Card mount FAILED!");
     sdReady = false;
   } else {
@@ -26,14 +26,15 @@ void sdTaskInit() {
       sdReady = true;
       uint64_t cardSize = SD.cardSize() / (1024 * 1024);
       Serial.printf("[SD] Card mounted. Type: %d, Size: %lluMB\n", cardType, cardSize);
-      hspi.setFrequency(20000000);
+      vspi.setFrequency(20000000);
 
       if (!SD.exists(LOG_DIR)) {
         SD.mkdir(LOG_DIR);
         Serial.println("[SD] Created /logs directory");
       }
-      sdCreateNewLogFile();
-      sdLoggingActive = true;
+      // Don't auto-start logging - user starts manually via web UI
+      sdLoggingActive = false;
+      Serial.println("[SD] Ready (logging OFF - start via web UI)");
     }
   }
 
@@ -88,11 +89,12 @@ void sdLoggingTask(void *param) {
           "\"%s\",\"%c\",\"", entry->timestamp,
           entry->direction == 'T' ? 'T' : 'R');
 
+        // Write data as plain string (no hex encoding)
         for (int i = 0; i < entry->dataLen && len < (int)sizeof(csvLine) - 4; i++) {
           char c = entry->data[i];
           if (c == '"') { csvLine[len++] = '"'; csvLine[len++] = '"'; }
-          else if (c >= 0x20 && c < 0x7F) { csvLine[len++] = c; }
-          else { len += snprintf(csvLine + len, sizeof(csvLine) - len, "\\x%02X", (uint8_t)c); }
+          else if (c >= 0x20) { csvLine[len++] = c; }
+          // Skip control chars (0x00~0x1F) silently
         }
         len += snprintf(csvLine + len, sizeof(csvLine) - len, "\"\r\n");
         logFile.write((uint8_t*)csvLine, len);