diff --git a/wolfcrypt/src/wc_port.c b/wolfcrypt/src/wc_port.c
index 02a98b767..79e742919 100644
--- a/wolfcrypt/src/wc_port.c
+++ b/wolfcrypt/src/wc_port.c
@@ -508,28 +508,28 @@ int wc_ReadDirFirst(ReadDirCtx* ctx, const char* path, char** name)
     XSTRNCPY(ctx->name, path, MAX_FILENAME_SZ - 3);
     XSTRNCPY(ctx->name + pathLen, "\\*", MAX_FILENAME_SZ - pathLen);
 
-    if (!FindFirstRtFile(ctx->name, &ctx->FindFileData, 0)) {
+    if (!IntimeFindFirst(ctx->name, &ctx->FindFileData)) {
         WOLFSSL_MSG("FindFirstFile for path verify locations failed");
         return BAD_PATH_ERROR;
     }
 
     do {
-        if (!(ctx->FindFileData.dwFileAttributes & FILE_ATTR_DIRECTORY)) {
-            dnameLen = (int)XSTRLEN(ctx->FindFileData.cFileName);
+        dnameLen = (int)XSTRLEN(IntimeFilename(ctx));
 
-            if (pathLen + dnameLen + 2 > MAX_FILENAME_SZ) {
-                return BAD_PATH_ERROR;
-            }
-            XSTRNCPY(ctx->name, path, pathLen + 1);
-            ctx->name[pathLen] = '\\';
-            XSTRNCPY(ctx->name + pathLen + 1,
-                     ctx->FindFileData.cFileName,
-                     MAX_FILENAME_SZ - pathLen - 1);
+        if (pathLen + dnameLen + 2 > MAX_FILENAME_SZ) {
+            return BAD_PATH_ERROR;
+        }
+        XSTRNCPY(ctx->name, path, pathLen + 1);
+        ctx->name[pathLen] = '\\';
+        XSTRNCPY(ctx->name + pathLen + 1,
+                 IntimeFilename(ctx),
+                 MAX_FILENAME_SZ - pathLen - 1);
+        if (0 == wc_FileExists(ctx->name)) {
             if (name)
                 *name = ctx->name;
             return 0;
         }
-    } while (FindNextRtFile(&ctx->FindFileData));
+    } while (IntimeFindNext(&ctx->FindFileData));
 
 #elif defined(WOLFSSL_ZEPHYR)
     if (fs_opendir(&ctx->dir, path) != 0) {
@@ -656,18 +656,18 @@ int wc_ReadDirNext(ReadDirCtx* ctx, const char* path, char** name)
     }
 
 #elif defined(INTIME_RTOS)
-    while (FindNextRtFile(&ctx->FindFileData)) {
-        if (!(ctx->FindFileData.dwFileAttributes & FILE_ATTR_DIRECTORY)) {
-            dnameLen = (int)XSTRLEN(ctx->FindFileData.cFileName);
+    while (IntimeFindNext(&ctx->FindFileData)) {
+        dnameLen = (int)XSTRLEN(IntimeFilename(ctx));
 
-            if (pathLen + dnameLen + 2 > MAX_FILENAME_SZ) {
-                return BAD_PATH_ERROR;
-            }
-            XSTRNCPY(ctx->name, path, pathLen + 1);
-            ctx->name[pathLen] = '\\';
-            XSTRNCPY(ctx->name + pathLen + 1,
-                     ctx->FindFileData.cFileName,
-                     MAX_FILENAME_SZ - pathLen - 1);
+        if (pathLen + dnameLen + 2 > MAX_FILENAME_SZ) {
+            return BAD_PATH_ERROR;
+        }
+        XSTRNCPY(ctx->name, path, pathLen + 1);
+        ctx->name[pathLen] = '\\';
+        XSTRNCPY(ctx->name + pathLen + 1,
+                 IntimeFilename(ctx),
+                 MAX_FILENAME_SZ - pathLen - 1);
+        if (0 == wc_FileExists(ctx->name)) {
             if (name)
                 *name = ctx->name;
             return 0;
@@ -758,7 +758,7 @@ void wc_ReadDirClose(ReadDirCtx* ctx)
     }
 
 #elif defined(INTIME_RTOS)
-    FindRtFileClose(&ctx->FindFileData);
+    IntimeFindClose(&ctx->FindFileData);
 
 #elif defined(WOLFSSL_ZEPHYR)
     if (ctx->dirp) {
diff --git a/wolfssl/wolfcrypt/wc_port.h b/wolfssl/wolfcrypt/wc_port.h
index 291ff4d40..81616e3a7 100644
--- a/wolfssl/wolfcrypt/wc_port.h
+++ b/wolfssl/wolfcrypt/wc_port.h
@@ -699,6 +699,16 @@ WOLFSSL_API int wolfCrypt_Cleanup(void);
         #define XSTAT       _stat
         #define XS_ISREG(s) (s & _S_IFREG)
         #define SEPARATOR_CHAR ';'
+
+    #elif defined(INTIME_RTOS)
+        #include <sys/stat.h>
+        #define XSTAT _stat64
+        #define XS_ISREG(s) S_ISREG(s)
+        #define SEPARATOR_CHAR ';'
+        #define XWRITE      write
+        #define XREAD       read
+        #define XCLOSE      close
+
     #elif defined(WOLFSSL_ZEPHYR)
         #define XSTAT       fs_stat
         #define XS_ISREG(s) (s == FS_DIR_ENTRY_FILE)
@@ -765,7 +775,12 @@ WOLFSSL_API int wolfCrypt_Cleanup(void);
         struct M2MB_DIRENT* entry;
         struct M2MB_STAT s;
     #elif defined(INTIME_RTOS)
-        FIND_FILE_DATA FindFileData;
+        struct stat64 s;
+        struct _find64 FindFileData;
+        #define IntimeFindFirst(name, data) (0 == _findfirst64(name, data))
+        #define IntimeFindNext(data)  (0 == _findnext64(data))
+        #define IntimeFindClose(data) (0 == _findclose64(data))
+        #define IntimeFilename(ctx)   ctx->FindFileData.f_filename
     #else
         struct dirent* entry;
         DIR*   dir;