diff --git a/software/firmware/source/SoftRF/src/platform/CH32.cpp b/software/firmware/source/SoftRF/src/platform/CH32.cpp
index 2a71e4bda..9e5324585 100644
--- a/software/firmware/source/SoftRF/src/platform/CH32.cpp
+++ b/software/firmware/source/SoftRF/src/platform/CH32.cpp
@@ -163,7 +163,11 @@ static void CH32_msc_flush_cb (void)
 #if defined(ENABLE_RECORDER)
 #include <SdFat.h>
 
+#if defined(USE_SOFTSPI)
+SoftSPI uSD_SPI(SOC_GPIO_YD_SD_CMD, SOC_GPIO_YD_SD_D0, SOC_GPIO_YD_SD_CLK);
+#else
 SPIClass uSD_SPI;
+#endif /* USE_SOFTSPI */
 
 #define SD_CONFIG SdSpiConfig(uSD_SS_pin, SHARED_SPI, SD_SCK_MHZ(8), &uSD_SPI)
 
@@ -242,6 +246,23 @@ static void CH32_setup()
 #endif /* USE_SOFTSPI */
 
       ft = new Adafruit_FlashTransport_SPI(SOC_GPIO_YD_FL_SS, &FlashSPI);
+
+#if defined(ENABLE_RECORDER)
+      {
+        int uSD_SS_pin = SOC_GPIO_YD_SD_D3;
+
+#if !defined(USE_SOFTSPI)
+        uSD_SPI.setMISO(SOC_GPIO_YD_SD_D0);
+        uSD_SPI.setMOSI(SOC_GPIO_YD_SD_CMD);
+        uSD_SPI.setSCLK(SOC_GPIO_YD_SD_CLK);
+#endif /* USE_SOFTSPI */
+
+        pinMode(uSD_SS_pin, OUTPUT);
+        digitalWrite(uSD_SS_pin, HIGH);
+
+        uSD_is_attached = uSD.cardBegin(SD_CONFIG);
+      }
+#endif /* ENABLE_RECORDER */
       break;
 
     case CH32_WCH_V307V_R1:
@@ -257,6 +278,13 @@ static void CH32_setup()
 
   hw_info.storage = CH32_has_spiflash ? STORAGE_FLASH : STORAGE_NONE;
 
+#if defined(ENABLE_RECORDER)
+  if (uSD_is_attached && uSD.card()->cardSize() > 0) {
+    hw_info.storage = (hw_info.storage == STORAGE_FLASH) ?
+                      STORAGE_FLASH_AND_CARD : STORAGE_CARD;
+  }
+#endif /* ENABLE_RECORDER */
+
   if (CH32_has_spiflash) {
     spiflash_id = SPIFlash->getJEDECID();
 
@@ -333,6 +361,41 @@ static void CH32_post_init()
     Serial.flush();
   }
 
+#if defined(ENABLE_RECORDER)
+  if (CH32_board == CH32_YD_V307VCT6)
+  {
+    if (!uSD_is_attached) {
+      Serial.println(F("WARNING: unable to attach micro-SD card."));
+    } else {
+      // The number of 512 byte sectors in the card
+      // or zero if an error occurs.
+      size_t cardSize = uSD.card()->cardSize();
+
+      if (cardSize == 0) {
+        Serial.println(F("WARNING: invalid micro-SD card size."));
+      } else {
+        uint8_t cardType = uSD.card()->type();
+
+        Serial.print(F("SD Card Type: "));
+        if(cardType == SD_CARD_TYPE_SD1){
+            Serial.println(F("V1"));
+        } else if(cardType == SD_CARD_TYPE_SD2){
+            Serial.println(F("V2"));
+        } else if(cardType == SD_CARD_TYPE_SDHC){
+            Serial.println(F("SDHC"));
+        } else {
+            Serial.println(F("UNKNOWN"));
+        }
+
+        Serial.print("SD Card Size: ");
+        Serial.print(cardSize / (2 * 1024));
+        Serial.println(" MB");
+      }
+    }
+    Serial.println();
+  }
+#endif /* ENABLE_RECORDER */
+
   Serial.println(F("Data output device(s):"));
 
   Serial.print(F("NMEA   - "));
diff --git a/software/firmware/source/SoftRF/src/platform/CH32.h b/software/firmware/source/SoftRF/src/platform/CH32.h
index 0b6a45f32..5dd0638eb 100644
--- a/software/firmware/source/SoftRF/src/platform/CH32.h
+++ b/software/firmware/source/SoftRF/src/platform/CH32.h
@@ -155,12 +155,28 @@ struct rst_info {
 #define SOC_GPIO_YD_BUTTON    PB_3
 
 // uSD
-#define SOC_GPIO_YD_SD_D0     PC_8
+#if defined(PC8)
+#define SOC_GPIO_YD_SD_D0     PC8
+#else
+#define SOC_GPIO_YD_SD_D0     PC_8  /* MISO */
+#endif
 #define SOC_GPIO_YD_SD_D1     PC_9
 #define SOC_GPIO_YD_SD_D2     PC_10
-#define SOC_GPIO_YD_SD_D3     PC_11
+#if defined(PC11)
+#define SOC_GPIO_YD_SD_D3     PC11
+#else
+#define SOC_GPIO_YD_SD_D3     PC_11 /*  SS  */
+#endif
+#if defined(PC12)
+#define SOC_GPIO_YD_SD_CLK    PC12
+#else
 #define SOC_GPIO_YD_SD_CLK    PC_12
-#define SOC_GPIO_YD_SD_CMD    PD_2
+#endif
+#if defined(PD2)
+#define SOC_GPIO_YD_SD_CMD    PD2
+#else
+#define SOC_GPIO_YD_SD_CMD    PD_2  /* MOSI */
+#endif
 #define SOC_GPIO_YD_SD_SW     PD_7
 
 // W25Q32