diff --git a/test/case46/src/testcase46.c b/test/case46/src/testcase46.c
index cffb01f..a11e390 100644
--- a/test/case46/src/testcase46.c
+++ b/test/case46/src/testcase46.c
@@ -65,7 +65,7 @@ struct sockaddr_in                      server_addr_case52;                 // 
 int                                     mem_fd_case52;                      // 统一文件描述符
 ssize_t                                 send_len;
 void                                    *ucp4008_ctrl_mmap_base;            // 接受开关映射地址
-void                                    *map_base_rx_case52;                // RX映射地址 8块
+void                                    *map_base_rx_case52;                // RX映射地址 24块
 void                                    *map_base_rxf_case52;               // wr 计数映射地址
 uint8_t                                 w_idx, r_idx;                       // RX 信号
 uint16_t                                udp_data_buffer[8008];
@@ -252,13 +252,13 @@ void *handleUdpTransmission(void *arg)
                         }                                    
                         r_idx ++ ;
                     } 
-                    r_idx = r_idx % 8;
+                    r_idx = r_idx % 24;
                 } 
                 else //r_idx > w_idx
                 { 
                     // printf("[while(w)]: w_idx = %hhu, r_idx = %hhu\n", w_idx, r_idx);
                     // printf("[while(w)]: w_idx < r_idx\n"); 
-                    for (cut_i = 0; cut_i < (8-r_idx); cut_i++)
+                    for (cut_i = 0; cut_i < (24-r_idx); cut_i++)
                     {
                         memcpy(udp_data_buffer, 
                             (char*)map_base_rx_case52 + (r_idx+cut_i) * 16016, 
@@ -298,7 +298,7 @@ void *handleUdpTransmission(void *arg)
                         }                           
                         r_idx ++;
                     }
-                    r_idx = r_idx % 8;
+                    r_idx = r_idx % 24;
                 }
             }
         }