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diff --git a/software/firmware/source/SoftRF/src/platform/CH32.cpp b/software/firmware/source/SoftRF/src/platform/CH32.cpp
index 9e5324585..c1f8f0e7e 100644
--- a/software/firmware/source/SoftRF/src/platform/CH32.cpp
+++ b/software/firmware/source/SoftRF/src/platform/CH32.cpp
@@ -163,13 +163,14 @@ 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 */
+SoftSpiDriver<SOC_GPIO_YD_SD_D0, SOC_GPIO_YD_SD_CMD, SOC_GPIO_YD_SD_CLK> uSD_SPI;
 
+// Speed argument is ignored for software SPI.
+#if ENABLE_DEDICATED_SPI
+#define SD_CONFIG SdSpiConfig(uSD_SS_pin, DEDICATED_SPI, SD_SCK_MHZ(8), &uSD_SPI)
+#else  // ENABLE_DEDICATED_SPI
 #define SD_CONFIG SdSpiConfig(uSD_SS_pin, SHARED_SPI, SD_SCK_MHZ(8), &uSD_SPI)
+#endif  // ENABLE_DEDICATED_SPI
 
 SdFat uSD;
 
@@ -251,7 +252,7 @@ static void CH32_setup()
       {
         int uSD_SS_pin = SOC_GPIO_YD_SD_D3;
 
-#if !defined(USE_SOFTSPI)
+#if !defined(USE_SOFTSPI) && SPI_DRIVER_SELECT != 2
         uSD_SPI.setMISO(SOC_GPIO_YD_SD_D0);
         uSD_SPI.setMOSI(SOC_GPIO_YD_SD_CMD);
         uSD_SPI.setSCLK(SOC_GPIO_YD_SD_CLK);
@@ -790,7 +791,7 @@ static void CH32_Button_setup()
     int button_pin = SOC_GPIO_PIN_BUTTON;
 
     // Button(s) uses external pull up resistor.
-    pinMode(button_pin, INPUT);
+    pinMode(button_pin, CH32_board == CH32_YD_V307VCT6 ? INPUT_PULLUP : INPUT);
 
     button_1.init(button_pin);
 
@@ -830,7 +831,7 @@ static void CH32_Button_fini()
   if (hw_info.model == SOFTRF_MODEL_ACADEMY) {
 //  detachInterrupt(digitalPinToInterrupt(SOC_GPIO_PIN_BUTTON));
     while (digitalRead(SOC_GPIO_PIN_BUTTON) == LOW);
-    pinMode(SOC_GPIO_PIN_BUTTON, ANALOG);
+    pinMode(SOC_GPIO_PIN_BUTTON, INPUT);
   }
 #endif /* SOC_GPIO_PIN_BUTTON != SOC_UNUSED_PIN */
 }
diff --git a/software/firmware/source/SoftRF/src/platform/CH32.h b/software/firmware/source/SoftRF/src/platform/CH32.h
index 5dd0638eb..faf1824c6 100644
--- a/software/firmware/source/SoftRF/src/platform/CH32.h
+++ b/software/firmware/source/SoftRF/src/platform/CH32.h
@@ -94,7 +94,11 @@ struct rst_info {
 #define SOC_GPIO_PIN_GNSS_RX  PA10
 #define SOC_GPIO_PIN_GNSS_TX  PA9
 
+#if defined(PB4)
 #define SOC_GPIO_PIN_STATUS   SOC_UNUSED_PIN /* PA15 PB4 */
+#else
+#define SOC_GPIO_PIN_STATUS   PB4
+#endif
 #define SOC_GPIO_PIN_BUZZER   SOC_UNUSED_PIN
 
 #define SOC_GPIO_PIN_RX3      SOC_UNUSED_PIN
@@ -143,18 +147,44 @@ struct rst_info {
 #define SOC_GPIO_PIN_LED      SOC_UNUSED_PIN
 #define SOC_GPIO_PIN_GNSS_PPS PA3
 #define SOC_GPIO_PIN_BATTERY  SOC_UNUSED_PIN /* PA0 TBD */
+#if defined(PB3)
+#define SOC_GPIO_PIN_BUTTON   PB3
+#else
 #define SOC_GPIO_PIN_BUTTON   SOC_UNUSED_PIN
+#endif
 
 #define SOC_GPIO_RADIO_LED_RX SOC_UNUSED_PIN
 #define SOC_GPIO_RADIO_LED_TX SOC_UNUSED_PIN
 
+/* SPI3 */
+#if defined(PB5)
+#define SOC_GPIO_PIN_MOSI3    PB5
+#else
+#define SOC_GPIO_PIN_MOSI3    PB_5
+#endif
+#if defined(PB4)
+#define SOC_GPIO_PIN_MISO3    PB4
+#else
+#define SOC_GPIO_PIN_MISO3    PB_4
+#endif
+#if defined(PB3)
+#define SOC_GPIO_PIN_SCK3     PB3
+#else
+#define SOC_GPIO_PIN_SCK3     PB_3
+#endif
+#if defined(PA15)
+#define SOC_GPIO_PIN_SS3      PA15
+#else
+#define SOC_GPIO_PIN_SS3      PA_15
+#endif
+
 /* YD-CH32V307VCT6 */
 #define SOC_GPIO_YD_LED_BLUE  PB_4
 #define SOC_GPIO_YD_LED_RED   PA_15
 
 #define SOC_GPIO_YD_BUTTON    PB_3
 
-// uSD
+// SDIO
 #if defined(PC8)
 #define SOC_GPIO_YD_SD_D0     PC8
 #else
diff --git a/software/firmware/source/libraries/SdFat/src/SdFatConfig.h b/software/firmware/source/libraries/SdFat/src/SdFatConfig.h
index 19b881938..b4f700d9e 100644
--- a/software/firmware/source/libraries/SdFat/src/SdFatConfig.h
+++ b/software/firmware/source/libraries/SdFat/src/SdFatConfig.h
@@ -44,6 +44,10 @@
 #define USE_UTF8_LONG_NAMES 1
 #endif
 
+#if defined(ARDUINO_ARCH_CH32)
+#define SPI_DRIVER_SELECT 2
+#endif  // ARDUINO_ARCH_CH32
+
 // Backward-compatible define
 #define ENABLE_EXTENDED_TRANSFER_CLASS USE_BLOCK_DEVICE_INTERFACE
 #define BaseBlockDriver FsBlockDeviceInterface