调整最大数据包长度至512，优化BLE数据打包函数以支持分包，更新相关文档注释，确保与最新协议一致。

apps/usr_jb_proto/Protocol/jb_protocol.h

@@ -26,7 +26,7 @@
 /* ⚠ 生成器给的是 128，必须改回 256：DP15 run_record 124B，加 bitmap(4B) 与
  * cmd/sn/cksum 开销后 128B 组不出完整帧（规格书第 0 章第 1 条 / 第 19 章）。
  * 每次从生成器重新拷贝 jb_protocol.h 后都要重新确认本值。 */
-#define MAX_PACKAGE_LEN      256
+#define MAX_PACKAGE_LEN      512
 #define JB_OTA_MAX_PAYLOAD   96       /* OTA 单包 Payload 上限(Byte); 须 <= MAX_PACKAGE_LEN - 11(0x32 帧开销) */
 
 #define DP_COUNT             25

apps/usr_le_code/bleproto_packer.c

@@ -673,51 +673,89 @@ int bleproto_appdata_serialize(bleproto_appdata_t *appdata,
 
 int bleproto_appdata_wrap_raw(uint8_t *txbuf,
                               uint16_t txbuf_size,
+                              uint8_t packetlen,
                               const bleproto_appdata_header_t *header,
                               const uint8_t *payload,
                               uint16_t payload_len)
 {
-    uint16_t total;
+    uint8_t frame_max;
+    uint16_t totalframe;
+    uint16_t need;
+    uint16_t offset = 0;
+    uint16_t data_offset = 0;
+    uint16_t i;
 
-    if (!txbuf || !header) {
+    if (!txbuf || !header || packetlen <= BLEPROTO_APPDATA_HEADR_LEN) {
-        BLEPROTO_T_E("Invalid parameters");
+        printf("Invalid parameters");
         return -1;
     }
     if (payload_len > 0 && !payload) {
-        BLEPROTO_T_E("Invalid payload");
+        printf("Invalid payload");
-        return -1;
-    }
-    /* 单帧 this_frame_len 为 uint8，超过 255 需走分包 serialize */
-    if (payload_len > 255u) {
-        BLEPROTO_T_E("payload too long for single frame");
         return -1;
     }
 
-    total = (uint16_t)(BLEPROTO_APPDATA_HEADR_LEN + payload_len);
+    /* 与 serialize 相同：一帧总长 packetlen，其中 8B 头，其余为 payload */
-    if (txbuf_size < total) {
+    frame_max = (uint8_t)(packetlen - BLEPROTO_APPDATA_HEADR_LEN);
-        BLEPROTO_T_E("txbuf too short");
+
+    if (payload_len == 0) {
+        totalframe = 1;
+    } else {
+        totalframe = (uint16_t)((payload_len + frame_max - 1u) / frame_max);
+    }
+    if (totalframe > 255u) {
+        printf("payload too long, frames %u>255\n", (unsigned)totalframe);
         return -1;
     }
 
-    /* buf[0]: version[2:0] | datafmt[3:3] | msgtype[7:4] */
+    need = (uint16_t)((uint16_t)totalframe * BLEPROTO_APPDATA_HEADR_LEN + payload_len);
-    txbuf[0] = UTILS_BITFIELD_SET(header->version, 2, 0) |
+    if (txbuf_size < need) {
-               UTILS_BITFIELD_SET(header->datafmt, 3, 3) |
+        printf("txbuf too short %u<%u\n", (unsigned)txbuf_size, (unsigned)need);
-               UTILS_BITFIELD_SET(header->msgtype, 7, 4);
+        return -1;
-    /* buf[1]: msgid[3:0] | encrypt[4:4] | reserve[7:5] */
-    txbuf[1] = UTILS_BITFIELD_SET(header->msgid, 3, 0) |
-               UTILS_BITFIELD_SET(header->encrypt, 4, 4) |
-               UTILS_BITFIELD_SET(header->reserve, 7, 5);
-    txbuf[2] = 1;                         /* totalframe */
-    txbuf[3] = 0;                         /* frameseq：单帧为 0 */
-    txbuf[4] = (uint8_t)payload_len;      /* this frame payload len */
-    txbuf[5] = header->serviceid;
-    proto_bytes_put_le16(&txbuf[6], payload_len);
-
-    if (payload_len > 0) {
-        memcpy(&txbuf[BLEPROTO_APPDATA_HEADR_LEN], payload, payload_len);
     }
 
-    return (int)total;
+    for (i = 0; i < totalframe; i++) {
+        uint8_t this_len;
+        uint8_t frameseq;
+
+        if (totalframe == 1u) {
+            this_len = (uint8_t)payload_len;
+            frameseq = 0;                 /* 单帧序号为 0 */
+        } else if ((uint16_t)(i + 1u) < totalframe) {
+            this_len = frame_max;
+            frameseq = (uint8_t)(i + 1u); /* 分包从 1 起 */
+        } else {
+            this_len = (uint8_t)(payload_len - data_offset);
+            frameseq = (uint8_t)(i + 1u);
+        }
+
+        /* buf[0]: version[2:0] | datafmt[3:3] | msgtype[7:4] */
+        txbuf[offset + 0] = UTILS_BITFIELD_SET(header->version, 2, 0) |
+                            UTILS_BITFIELD_SET(header->datafmt, 3, 3) |
+                            UTILS_BITFIELD_SET(header->msgtype, 7, 4);
+        /* buf[1]: msgid[3:0] | encrypt[4:4] | reserve[7:5] */
+        txbuf[offset + 1] = UTILS_BITFIELD_SET(header->msgid, 3, 0) |
+                            UTILS_BITFIELD_SET(header->encrypt, 4, 4) |
+                            UTILS_BITFIELD_SET(header->reserve, 7, 5);
+        txbuf[offset + 2] = (uint8_t)totalframe;
+        txbuf[offset + 3] = frameseq;
+        txbuf[offset + 4] = this_len;
+        txbuf[offset + 5] = header->serviceid;
+        proto_bytes_put_le16(&txbuf[offset + 6], payload_len);
+
+        offset = (uint16_t)(offset + BLEPROTO_APPDATA_HEADR_LEN);
+        if (this_len != 0) {
+            memcpy(&txbuf[offset], &payload[data_offset], this_len);
+            offset = (uint16_t)(offset + this_len);
+            data_offset = (uint16_t)(data_offset + this_len);
+        }
+    }
+
+    if (totalframe > 1u) {
+        printf("wrap_raw split %uB -> %u frames, out %uB\n",
+               (unsigned)payload_len, (unsigned)totalframe, (unsigned)offset);
+    }
+
+    return (int)offset;
 }
 
 int bleproto_appdata_deserialize(uint8_t *           buf,

apps/usr_le_code/bleproto_packer.h

@@ -586,17 +586,21 @@ int bleproto_appdata_serialize(bleproto_appdata_t *appdata,
                                uint16_t            size);
 
 /**
- * @brief 将已打包好的 payload 包装成单帧 appdata（不分包）
+ * @brief 将已打包好的 payload 包装成 appdata（超过单帧则按 packetlen 分包）
- * @param  txbuf        输出缓冲
+ * @param  txbuf        输出缓冲（须能放下 每帧8B头 × 帧数 + payload）
  * @param  txbuf_size   输出缓冲大小
+ * @param  packetlen    BLE GATT 单包有效长度，与 serialize 相同（本板 247）
  * @param  header       应用层头（datalen/totalframe/frameseq 由本函数填写）
  * @param  payload      已序列化的 service 数据；可为 NULL（payload_len==0）
- * @param  payload_len  payload 长度，须 <=255（单帧 pthis_frame_len 为 u8）
+ * @param  payload_len  应用数据总长度
  * @return >0 总字节数；<0 失败
- * @note   小包场景（JB 55AA 透传等）用此接口，避免 bleproto_appdata_t 大缓冲
+ * @note   切帧规则与 serialize 一致：单帧 payload = packetlen - 8；
+ *         不超过则 totalframe=1、frameseq=0；超过则中间帧填满、末帧剩余，
+ *         frameseq 从 1 递增。避免走 bleproto_appdata_t 大缓冲。
  */
 int bleproto_appdata_wrap_raw(uint8_t *txbuf,
                               uint16_t txbuf_size,
+                              uint8_t packetlen,
                               const bleproto_appdata_header_t *header,
                               const uint8_t *payload,
                               uint16_t payload_len);

apps/usr_le_code/usr_le_recieve.c

@@ -2,11 +2,12 @@
  * @file    usr_le_recieve.c
  * @brief   BLE 收包入口：bleproto 解析后分发配网 / 对时 / JB 协议 / 组应答
  * @author  cyWu <1917507415@qq.com>
- * @date    2026.08.19
+ * @date    2026.09.07
- * @version V1.1.0
+ * @version V1.2.0
  * @history
  * - V1.0.0, 2026.08.03, cyWu, 首次发布
  * - V1.1.0, 2026.08.19, cyWu, 对齐模组结构；废弃 JSON OTA；修 AUTHDELETE serviceid
+ * - V1.2.0, 2026.09.07, cyWu, JB 上报超 255 走 wrap_raw 自动分包；加大 txbuf
  ******************************************************************************/
 
 #include "system/includes.h"
@@ -27,15 +28,21 @@
 #define LOG_INFO_ENABLE
 #include "debug.h"
 
-/* 拼 GATT 分包：业务包 ≈ bleproto头 + V2 开销 + JB 帧(<=128)，1024 足够 */
+/* 收：GATT 拼包缓冲。发：V2 + bleproto 多帧（单帧总长 247，与 ATT 对齐） */
 #define USR_LE_RX_BUF_LEN       1024
-#define USR_LE_V2_WRAP_OVERHEAD 32u  /* V2 头开销，JB 帧最大 128 → 约 160 */
+#define USR_LE_V2_WRAP_OVERHEAD 32u  /* V2 头开销 */
+#define USR_LE_V2_MAX_LEN       (512u + USR_LE_V2_WRAP_OVERHEAD)
+#define USR_LE_APPDATA_PACKETLEN 247u /* 对齐 ATT_LOCAL_PAYLOAD_SIZE：8B头+239B数据 */
+#define USR_LE_APPDATA_FRAME_PAYLOAD (USR_LE_APPDATA_PACKETLEN - 8u)
+#define USR_LE_TX_BUF_LEN       (USR_LE_V2_MAX_LEN + \
+                                 8u * ((USR_LE_V2_MAX_LEN + USR_LE_APPDATA_FRAME_PAYLOAD - 1u) / \
+                                       USR_LE_APPDATA_FRAME_PAYLOAD))
 #define USR_LE_V2_CMD_REPORT    100u /* REPORTCMD_V2 内层 cmd */
 #define USR_LE_V2_CMD_RUN       110u /* RUNCMD_V2 内层 cmd */
 #define USR_LE_JB_CMD_OFF       4u   /* 55 AA | LEN_H LEN_L | CMD */
 
 static int encode_len = 0;
-static u8 txbuf[384] = {0};
+static u8 txbuf[USR_LE_TX_BUF_LEN];
 static u8 rxbuf[USR_LE_RX_BUF_LEN] = {0};
 static u8 s_last_runcmd_msgid = 0; /* RUNCMD_V2 应答须回填最近 msgid */
 
@@ -75,7 +82,7 @@ static void usr_le_fill_rsp_header(bleproto_appdata_desc_t *out,
  */
 static void usr_le_encode_and_send(bleproto_appdata_desc_t *desc)
 {
-    encode_len = bleproto_appdata_encode(txbuf, sizeof(txbuf), sizeof(txbuf), desc);
+    encode_len = bleproto_appdata_encode(txbuf, sizeof(txbuf),USR_LE_APPDATA_PACKETLEN, desc);
     if (encode_len > 0)
     {
         printf("encode_len = %d\n", encode_len);
@@ -365,7 +372,8 @@ void ble_send_data(u8 *data, u16 len)
         return;
     }
 
-    elen = bleproto_appdata_wrap_raw(txbuf, sizeof(txbuf), &hdr, v2_buf, (uint16_t)plen);
+    elen = bleproto_appdata_wrap_raw(txbuf, sizeof(txbuf), USR_LE_APPDATA_PACKETLEN,
+                                     &hdr, v2_buf, (uint16_t)plen);
     printf("ble_send_data jb_cmd=0x%02X active=%d encode_len=%d msgid=%d\n",
            jb_cmd, is_active_send, elen, hdr.msgid);
     if (elen <= 0)