From 1e3ad0c4648c3ef508960dd90e130b472c374492 Mon Sep 17 00:00:00 2001
From: Caisking <zhihui@LAPTOP-RI2L5AAG.localdomain>
Date: Sat, 24 Jan 2026 15:01:59 +0800
Subject: [PATCH] =?utf8?q?=E4=BC=98=E5=8C=96pgnss=E6=98=9F=E5=8E=86?=
 =?utf8?q?=E6=B3=A8=E5=85=A5?=
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---
 .../gnss/sample/pgnss_sample/pgnss_sample.c   | 49 ++++++++++---------
 1 file changed, 26 insertions(+), 23 deletions(-)

diff --git a/code/sdk/zhihui/services/gnss/sample/pgnss_sample/pgnss_sample.c b/code/sdk/zhihui/services/gnss/sample/pgnss_sample/pgnss_sample.c
index 16bd8df41..7ffc61cb0 100644
--- a/code/sdk/zhihui/services/gnss/sample/pgnss_sample/pgnss_sample.c
+++ b/code/sdk/zhihui/services/gnss/sample/pgnss_sample/pgnss_sample.c
@@ -1018,12 +1018,14 @@ static int check_agnss_folder_expired(void)
             uint32_t time_diff = 0;
             if (current_timestamp >= folder_timestamp) {
                 time_diff = current_timestamp - folder_timestamp;
-            } else {
-                time_diff = folder_timestamp - current_timestamp;
-            }
-            
+            } 
+            // else {
+            //     time_diff = folder_timestamp - current_timestamp;
+            // }
+            // printf("current_timestamp:%d,folder_timestamp:%d,time_diff : %d\n",current_timestamp,folder_timestamp,time_diff);
             // 检查是否在24小时内
-            if (time_diff < 86400) { // 24小时 = 86400秒
+            if (time_diff < 86400 && time_diff > 0) // 24小时 = 86400秒
+            { 
                 // 构建完整路径以检查文件数量
                 char full_folder_path[512];
                 int path_ret = snprintf(full_folder_path, sizeof(full_folder_path), "%s/%s", PGNSS_DATA_PATH, entry->d_name);
@@ -1042,27 +1044,27 @@ static int check_agnss_folder_expired(void)
                 // 检查文件数量是否为26个
                 if (file_count >= 20) {
                     found_valid_folder = 1;
-                    if (time_diff < min_time_diff) {
-                        min_time_diff = time_diff;
-                        // 更新全局变量，存储最接近的时间戳文件夹路径
-                        if (g_current_agnss_folder != NULL) {
-                            free(g_current_agnss_folder);
-                            g_current_agnss_folder = NULL;
-                        }
-                        g_current_agnss_folder = malloc(256);
-                        if (g_current_agnss_folder != NULL) {
-                            int ret = snprintf(g_current_agnss_folder, 256, "%s/%s", PGNSS_DATA_PATH, entry->d_name);
-                            if (ret < 0 || ret >= 256) {
-                                printf("ERROR: snprintf failed or buffer overflow for g_current_agnss_folder\n");
+                        if (time_diff < min_time_diff) {
+                            min_time_diff = time_diff;
+                            // 更新全局变量，存储最接近的时间戳文件夹路径
+                            if (g_current_agnss_folder != NULL) {
                                 free(g_current_agnss_folder);
                                 g_current_agnss_folder = NULL;
                             }
-                        } else {
-                            printf("ERROR: Failed to allocate memory for g_current_agnss_folder\n");
+                            g_current_agnss_folder = malloc(256);
+                            if (g_current_agnss_folder != NULL) {
+                                int ret = snprintf(g_current_agnss_folder, 256, "%s/%s", PGNSS_DATA_PATH, entry->d_name);
+                                if (ret < 0 || ret >= 256) {
+                                    printf("ERROR: snprintf failed or buffer overflow for g_current_agnss_folder\n");
+                                    free(g_current_agnss_folder);
+                                    g_current_agnss_folder = NULL;
+                                }
+                            } else {
+                                printf("ERROR: Failed to allocate memory for g_current_agnss_folder\n");
+                            }
                         }
-                    }
-                    printf("Found valid AGNSS folder: %s (time diff: %u seconds, file count: %d)\n", 
-                           entry->d_name, time_diff, file_count);
+                        printf("Found valid AGNSS folder: %s (time diff: %u seconds, file count: %d)\n", 
+                               entry->d_name, time_diff, file_count);
                 } else {
                     printf("Found AGNSS folder with invalid file count: %s (time diff: %u seconds, file count: %d/26)\n", 
                            entry->d_name, time_diff, file_count);
@@ -1112,7 +1114,8 @@ static int check_agnss_folder_expired(void)
             printf("Cycle %d: Checking %s - file count: %d/26\n", 
                    current_cycle, candidate_folder_name, file_count);
             
-            if (file_count == 26) {
+            if (file_count >= 20) 
+            {
                 printf("SUCCESS: AGNSS folder now has 26 files! %s\n", candidate_folder_name);
                 
                 // 更新全局变量，存储有效的文件夹路径
-- 
2.17.1