diff --git a/User/bsp/bsp.h b/User/bsp/bsp.h
index e69de29..19e162c 100644
--- a/User/bsp/bsp.h
+++ b/User/bsp/bsp.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define BSP_OK (0)
+#define BSP_ERR (-1)
+#define BSP_ERR_NULL (-2)
+#define BSP_ERR_INITED (-3)
+#define BSP_ERR_NO_DEV (-4)
+
+#define SIGNAL_BSP_USB_BUF_RECV (1u << 0)
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/User/component/cmd.c b/User/component/cmd.c
deleted file mode 100644
index e69de29..0000000
diff --git a/User/component/cmd.h b/User/component/cmd.h
deleted file mode 100644
index e69de29..0000000
diff --git a/User/component/crc16.c b/User/component/crc16.c
index e69de29..2d9de2a 100644
--- a/User/component/crc16.c
+++ b/User/component/crc16.c
@@ -0,0 +1,50 @@
+#include "crc16.h"
+
+static const uint16_t crc16_tab[256] = {
+    0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, 0x8c48,
+    0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7, 0x1081, 0x0108,
+    0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, 0x9cc9, 0x8d40, 0xbfdb,
+    0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876, 0x2102, 0x308b, 0x0210, 0x1399,
+    0x6726, 0x76af, 0x4434, 0x55bd, 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e,
+    0xfae7, 0xc87c, 0xd9f5, 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e,
+    0x54b5, 0x453c, 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd,
+    0xc974, 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
+    0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, 0x5285,
+    0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a, 0xdecd, 0xcf44,
+    0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, 0x6306, 0x728f, 0x4014,
+    0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, 0xef4e, 0xfec7, 0xcc5c, 0xddd5,
+    0xa96a, 0xb8e3, 0x8a78, 0x9bf1, 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3,
+    0x242a, 0x16b1, 0x0738, 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862,
+    0x9af9, 0x8b70, 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e,
+    0xf0b7, 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
+    0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, 0x18c1,
+    0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, 0xa50a, 0xb483,
+    0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5, 0x2942, 0x38cb, 0x0a50,
+    0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, 0xb58b, 0xa402, 0x9699, 0x8710,
+    0xf3af, 0xe226, 0xd0bd, 0xc134, 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7,
+    0x6e6e, 0x5cf5, 0x4d7c, 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1,
+    0xa33a, 0xb2b3, 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72,
+    0x3efb, 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
+    0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, 0xe70e,
+    0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, 0x6b46, 0x7acf,
+    0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9, 0xf78f, 0xe606, 0xd49d,
+    0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, 0x7bc7, 0x6a4e, 0x58d5, 0x495c,
+    0x3de3, 0x2c6a, 0x1ef1, 0x0f78};
+
+static inline uint16_t CRC16_Byte(uint16_t crc, const uint8_t data) {
+  return (crc >> 8) ^ crc16_tab[(crc ^ data) & 0xff];
+}
+
+uint16_t CRC16_Calc(const uint8_t *buf, size_t len, uint16_t crc) {
+  while (len--) crc = CRC16_Byte(crc, *buf++);
+  return crc;
+}
+
+bool CRC16_Verify(const uint8_t *buf, size_t len) {
+  if (len < 2) return false;
+
+  uint16_t expected = CRC16_Calc(buf, len - sizeof(uint16_t), CRC16_INIT);
+  return expected ==
+         ((const uint16_t *)((const uint8_t *)buf +
+                             (len % 2)))[len / sizeof(uint16_t) - 1];
+}
diff --git a/User/component/crc16.h b/User/component/crc16.h
index e69de29..dc54b30 100644
--- a/User/component/crc16.h
+++ b/User/component/crc16.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdbool.h>
+
+#include "user_math.h"
+
+#define CRC16_INIT 0XFFFF
+
+uint16_t CRC16_Calc(const uint8_t *buf, size_t len, uint16_t crc);
+bool CRC16_Verify(const uint8_t *buf, size_t len);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/User/component/crc8.c b/User/component/crc8.c
index e69de29..3dad677 100644
--- a/User/component/crc8.c
+++ b/User/component/crc8.c
@@ -0,0 +1,44 @@
+/*
+  参考了Linux
+*/
+
+#include "crc8.h"
+
+static const uint8_t crc8_tab[256] = {
+    0x00, 0x5e, 0xbc, 0xe2, 0x61, 0x3f, 0xdd, 0x83, 0xc2, 0x9c, 0x7e, 0x20,
+    0xa3, 0xfd, 0x1f, 0x41, 0x9d, 0xc3, 0x21, 0x7f, 0xfc, 0xa2, 0x40, 0x1e,
+    0x5f, 0x01, 0xe3, 0xbd, 0x3e, 0x60, 0x82, 0xdc, 0x23, 0x7d, 0x9f, 0xc1,
+    0x42, 0x1c, 0xfe, 0xa0, 0xe1, 0xbf, 0x5d, 0x03, 0x80, 0xde, 0x3c, 0x62,
+    0xbe, 0xe0, 0x02, 0x5c, 0xdf, 0x81, 0x63, 0x3d, 0x7c, 0x22, 0xc0, 0x9e,
+    0x1d, 0x43, 0xa1, 0xff, 0x46, 0x18, 0xfa, 0xa4, 0x27, 0x79, 0x9b, 0xc5,
+    0x84, 0xda, 0x38, 0x66, 0xe5, 0xbb, 0x59, 0x07, 0xdb, 0x85, 0x67, 0x39,
+    0xba, 0xe4, 0x06, 0x58, 0x19, 0x47, 0xa5, 0xfb, 0x78, 0x26, 0xc4, 0x9a,
+    0x65, 0x3b, 0xd9, 0x87, 0x04, 0x5a, 0xb8, 0xe6, 0xa7, 0xf9, 0x1b, 0x45,
+    0xc6, 0x98, 0x7a, 0x24, 0xf8, 0xa6, 0x44, 0x1a, 0x99, 0xc7, 0x25, 0x7b,
+    0x3a, 0x64, 0x86, 0xd8, 0x5b, 0x05, 0xe7, 0xb9, 0x8c, 0xd2, 0x30, 0x6e,
+    0xed, 0xb3, 0x51, 0x0f, 0x4e, 0x10, 0xf2, 0xac, 0x2f, 0x71, 0x93, 0xcd,
+    0x11, 0x4f, 0xad, 0xf3, 0x70, 0x2e, 0xcc, 0x92, 0xd3, 0x8d, 0x6f, 0x31,
+    0xb2, 0xec, 0x0e, 0x50, 0xaf, 0xf1, 0x13, 0x4d, 0xce, 0x90, 0x72, 0x2c,
+    0x6d, 0x33, 0xd1, 0x8f, 0x0c, 0x52, 0xb0, 0xee, 0x32, 0x6c, 0x8e, 0xd0,
+    0x53, 0x0d, 0xef, 0xb1, 0xf0, 0xae, 0x4c, 0x12, 0x91, 0xcf, 0x2d, 0x73,
+    0xca, 0x94, 0x76, 0x28, 0xab, 0xf5, 0x17, 0x49, 0x08, 0x56, 0xb4, 0xea,
+    0x69, 0x37, 0xd5, 0x8b, 0x57, 0x09, 0xeb, 0xb5, 0x36, 0x68, 0x8a, 0xd4,
+    0x95, 0xcb, 0x29, 0x77, 0xf4, 0xaa, 0x48, 0x16, 0xe9, 0xb7, 0x55, 0x0b,
+    0x88, 0xd6, 0x34, 0x6a, 0x2b, 0x75, 0x97, 0xc9, 0x4a, 0x14, 0xf6, 0xa8,
+    0x74, 0x2a, 0xc8, 0x96, 0x15, 0x4b, 0xa9, 0xf7, 0xb6, 0xe8, 0x0a, 0x54,
+    0xd7, 0x89, 0x6b, 0x35,
+};
+
+uint8_t CRC8_Calc(const uint8_t *buf, size_t len, uint8_t crc) {
+  /* loop over the buffer data */
+  while (len-- > 0) crc = crc8_tab[(crc ^ *buf++) & 0xff];
+
+  return crc;
+}
+
+bool CRC8_Verify(const uint8_t *buf, size_t len) {
+  if (len < 2) return false;
+
+  uint8_t expected = CRC8_Calc(buf, len - sizeof(uint8_t), CRC8_INIT);
+  return expected == buf[len - sizeof(uint8_t)];
+}
diff --git a/User/component/crc8.h b/User/component/crc8.h
index e69de29..e273e68 100644
--- a/User/component/crc8.h
+++ b/User/component/crc8.h
@@ -0,0 +1,22 @@
+/*
+  参考了Linux
+*/
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#define CRC8_INIT 0xFF
+
+uint8_t CRC8_Calc(const uint8_t *buf, size_t len, uint8_t crc);
+bool CRC8_Verify(const uint8_t *buf, size_t len);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/User/component/user_math.c b/User/component/user_math.c
index 0d0ff8c..8da77ca 100644
--- a/User/component/user_math.c
+++ b/User/component/user_math.c
@@ -1,12 +1,7 @@
-// /*
-//   自定义的数学运算。
-// */
+/*
+  自定义的数学运算。
+*/
 
-// #include "user_math.h"
-// #include <stdint.h>
+#include "user_math.h"
+#include <stdint.h>
 
-
-// float Adc_to_Distance(uint16_t adc_data) {
-//     // return (float)((adc_data * 1000) / 4095);
-//     return (float)((adc_data * 1000) / 16000000.0f); // 使用浮点数进行计算
-// }
\ No newline at end of file
diff --git a/User/component/user_math.h b/User/component/user_math.h
index 3e623b1..f44a127 100644
--- a/User/component/user_math.h
+++ b/User/component/user_math.h
@@ -1,20 +1,13 @@
-// /*
-//   自定义的数学运算。
-// */
+/*
+  自定义的数学运算。
+*/
 
-// #pragma once
+#pragma once
 
 
-// #include <math.h>
-// #include <stdint.h>
+#include <math.h>
+#include <stdint.h>
 
-// #ifndef M_PI
-// #define M_PI 3.14159265358979323846f
-// #endif
-
-// /**
-//  * @brief 用于计算ADC数据对应的距离（mm）
-//  * @param adc_data 
-//  * @return 
-//  */
-// float Adc_to_Distance(uint16_t adc_data);
\ No newline at end of file
+#ifndef M_PI
+#define M_PI 3.14159265358979323846f
+#endif
diff --git a/User/device/bmi088.c b/User/device/bmi088.c
deleted file mode 100644
index e69de29..0000000
diff --git a/User/device/bmi088.h b/User/device/bmi088.h
deleted file mode 100644
index e69de29..0000000
diff --git a/User/device/device.h b/User/device/device.h
index e69de29..308aabc 100644
--- a/User/device/device.h
+++ b/User/device/device.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DEVICE_OK (0)
+#define DEVICE_ERR (-1)
+#define DEVICE_ERR_NULL (-2)
+#define DEVICE_ERR_INITED (-3)
+#define DEVICE_ERR_NO_DEV (-4)
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/User/device/mpu6050.c b/User/device/mpu6050.c
deleted file mode 100644
index e69de29..0000000
diff --git a/User/device/mpu6050.h b/User/device/mpu6050.h
deleted file mode 100644
index e69de29..0000000
diff --git a/User/device/oled.c b/User/device/oled_i2c.c
similarity index 99%
rename from User/device/oled.c
rename to User/device/oled_i2c.c
index 246df6c..40bb2df 100644
--- a/User/device/oled.c
+++ b/User/device/oled_i2c.c
@@ -1,5 +1,5 @@
 /* Includes ----------------------------------------------------------------- */
-#include "device/oled.h"
+#include "device/oled_i2c.h"
 #include "bsp/i2c.h"
 #include <string.h>
 #include <stdint.h>
diff --git a/User/device/oled.h b/User/device/oled_i2c.h
similarity index 100%
rename from User/device/oled.h
rename to User/device/oled_i2c.h