diff --git a/.cproject b/.cproject
index 26f5b24..bb0cd81 100644
--- a/.cproject
+++ b/.cproject
@@ -100,6 +100,7 @@
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.c.linker.flags.1577723329" name="Linker flags (-Xlinker [option])" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.c.linker.flags" useByScannerDiscovery="false" valueType="stringList">
 									<listOptionValue builtIn="false" value="--print-memory-usage"/>
 								</option>
+								<option id="ilg.gnumcueclipse.managedbuild.cross.riscv.option.c.linker.printfloat.1191876922" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.option.c.linker.printfloat" useByScannerDiscovery="false" value="true" valueType="boolean"/>
 								<inputType id="ilg.gnumcueclipse.managedbuild.cross.riscv.tool.c.linker.input.1859223768" superClass="ilg.gnumcueclipse.managedbuild.cross.riscv.tool.c.linker.input">
 									<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
 									<additionalInput kind="additionalinput" paths="$(LIBS)"/>
diff --git a/APP/peripheral_main.c b/APP/peripheral_main.c
index 6a38d46..8c8ebc8 100644
--- a/APP/peripheral_main.c
+++ b/APP/peripheral_main.c
@@ -163,13 +163,18 @@ int main(void)
     // R32_PIN_CONFIG2
 
     // GPIOA_ResetBits(GPIO_Pin_1);
-    GPIOA_ModeCfg(GPIO_Pin_14, GPIO_ModeIN_Floating);
+    // GPIOA_ModeCfg(GPIO_Pin_14, GPIO_ModeIN_Floating);
 
-    DelayMs(1000 * 5);
+    DelayMs(1000 * 3);
 
     BSP_ADC_Init();
 
     PRINT("%s\n", VER_LIB);
+    // while (1)
+    // {
+    //     DelayMs(1000);
+    // }
+
     CH59x_BLEInit();
     HAL_Init();
     GAPRole_PeripheralInit();
diff --git a/BSP/src/bsp_adc.c b/BSP/src/bsp_adc.c
index 526d48c..76d74de 100644
--- a/BSP/src/bsp_adc.c
+++ b/BSP/src/bsp_adc.c
@@ -20,6 +20,8 @@ void BSP_ADC_Init(void)
 {
     uint8_t i;
 
+#if 0
+    // ±10C，没啥参考价值
     /* 温度采样并输出 */
     PRINT("\n1.Temperature sampling...\n");
     ADC_InterTSSampInit();
@@ -33,7 +35,9 @@ void BSP_ADC_Init(void)
         C25          = (*((PUINT32)ROM_CFG_TMP_25C));
         PRINT("%d %d %d \n", adc_to_temperature_celsius(adcBuff[i]), adcBuff[i], C25);
     }
+#endif
 
+#if 1
     // VBAT
     uint32_t CountBat = 0;
     ADC_InterBATSampInit();
@@ -55,21 +59,27 @@ void BSP_ADC_Init(void)
     printf("min_number = %d, max_number = %d\n", min_number, max_number);
     CountBat = (CountBat - min_number - max_number) / 18; // 删除最小与最大值
     printf("AverageCountBat = %d\n", CountBat);
+#endif
 
     /* 单通道采样：选择adc通道3做采样，对应 PA13引脚， 带数据校准功能 */
-    GPIOA_ModeCfg(GPIO_Pin_13, GPIO_ModeIN_Floating);
+    GPIOA_ModeCfg(GPIO_Pin_14, GPIO_ModeIN_Floating);
+    DelayMs(300);
+
     // 6dB(2倍) (ADC/4096+0.5)*Vref 1.5*Vref 0.525V～1.575V 0.6V～1.5V
-    ADC_ExtSingleChSampInit(SampleFreq_3_2, ADC_PGA_2);
+    ADC_ExtSingleChSampInit(SampleFreq_3_2, ADC_PGA_0);
 
     RoughCalib_Value = ADC_DataCalib_Rough(); // 用于计算ADC内部偏差，记录到全局变量 RoughCalib_Value中
     PRINT("RoughCalib_Value =%d \n", RoughCalib_Value);
 
-    printf("PA13:::::\n");
-    ADC_ChannelCfg(3);
+    DelayMs(300);
+
+    printf("PA14:::::\n");
+    ADC_ChannelCfg(4);
 
     for (i = 0; i < 20; i++)
     {
         adcBuff[i] = ADC_ExcutSingleConver() + RoughCalib_Value; // 连续采样20次
+        // DelayMs(5);
     }
     printf("original: ");
     for (i = 0; i < 20; i++)
@@ -92,6 +102,7 @@ void BSP_ADC_Init(void)
     printf("min=%d, max=%d, diff=%d\n", min_number, max_number, (max_number - min_number));
     countadc = (countadc - min_number - max_number) / 18; // 删除最小与最大值
     printf("countaveradc = %d\n", countadc);
-    voltage = (double)countadc / 2048 * 1.05;
-    printf("voltage=%1.3lfv\n", voltage);
+    voltage = (double)(countadc) / 2048 * 1.05;
+    printf("voltage=%1.3lf V\n", voltage);
+    PRINT("VIN: %1.3lf V\n", voltage * 2);
 }