diff --git a/ctaocrypt/src/random.c b/ctaocrypt/src/random.c
index 33a282b02..aabc19926 100644
--- a/ctaocrypt/src/random.c
+++ b/ctaocrypt/src/random.c
@@ -146,6 +146,19 @@ int GenerateSeed(OS_Seed* os, byte* output, word32 sz)
     return 0;
 }
 
+#elif defined(CYASSL_SAFERTOS)
+
+#warning "write a real random seed!!!!, just for testing now"
+
+int GenerateSeed(OS_Seed* os, byte* output, word32 sz)
+{
+    int i;
+    for (i = 0; i < sz; i++ )
+        output[i] = i;
+
+    return 0;
+}
+
 #elif defined(NO_DEV_RANDOM)
 
 #error "you need to write an os specific GenerateSeed() here"
diff --git a/cyassl/ctaocrypt/settings.h b/cyassl/ctaocrypt/settings.h
index 8fcb58b67..ad93345a8 100644
--- a/cyassl/ctaocrypt/settings.h
+++ b/cyassl/ctaocrypt/settings.h
@@ -150,6 +150,8 @@
 #endif
 
 #ifdef CYASSL_LSR
+    #define SIZEOF_LONG_LONG 8
+    #define CYASSL_LOW_MEMORY
     #define NO_WRITEV
     #define NO_SHA512
     #define NO_DH
@@ -160,6 +162,7 @@
     #define NO_RABBIT
     #ifndef NO_FILESYSTEM
         #define LSR_FS
+        #include "inc/hw_types.h"
         #include "fs.h"
     #endif
     #define CYASSL_LWIP
@@ -181,6 +184,12 @@
     #define XREALLOC(p, n, h, t) pvPortRealloc((p), (n))
 #endif
 
+#ifdef CYASSL_LOW_MEMORY
+    #define RSA_LOW_MEM
+    #define CYASSL_SMALL_STACK
+    #define TFM_TIMING_RESISTANT
+#endif
+
 #ifdef MICRIUM
 
     #include "stdlib.h"
diff --git a/src/ssl.c b/src/ssl.c
index f4c40ec06..d25ebc377 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -1217,11 +1217,11 @@ static int ProcessChainBuffer(CYASSL_CTX* ctx, const unsigned char* buff,
 #elif defined(LSR_FS)
     #include <fs.h>
     #define XFILE                   struct fs_file*
-    #define XFOPEN(NAME, MODE)      fs_open(NAME);
-    #define XFSEEK
+    #define XFOPEN(NAME, MODE)      fs_open((char*)NAME);
+    #define XFSEEK(F, O, W)         (void)F
     #define XFTELL(F)               (F)->len
-    #define XREWIND
-    #define XFREAD(BUF, SZ, AMT, F) fs_read(F, BUF, SZ*AMT)
+    #define XREWIND(F)              (void)F
+    #define XFREAD(BUF, SZ, AMT, F) fs_read(F, (char*)BUF, SZ*AMT)
     #define XFCLOSE                 fs_close
     #define XSEEK_END               0
     #define XBADFILE                NULL