Updates to the serialrx example from Bob Doison

apps/examples/serialrx/Makefile

@@ -63,7 +63,7 @@ ROOTDEPPATH = --dep-path .
 # Built-in application info
 
 APPNAME = serialrx
-PRIORITY = SCHED_PRIORITY_DEFAULT
+PRIORITY = SCHED_PRIORITY_LOW
 STACKSIZE = 2048
 
 # Common build

apps/examples/serialrx/send.py

@@ -5,16 +5,16 @@ from time import sleep
 f = open(sys.argv[1], "w")
 
 s = ""
-while len(s) < 960:
+while len(s) < 11520:
   s += "1"
 
 print("Sending to %s" % sys.argv[1])
 while(True):
-  #f.write(s);
-  #f.flush();
-  for i in range(len(s)):
-    f.write(s[i])
-    f.flush()
-    #sleep(0.050)
+  f.write(s);
+  f.flush();
+  #for i in range(len(s)):
+  #  f.write(s[i])
+  #  f.flush()
+  #  #sleep(0.050)
   sys.stdout.write(".")
   sys.stdout.flush()

apps/examples/serialrx/serialrx_main.c

@@ -51,8 +51,8 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
-#undef BUFFERED_IO
-#define CHUNK 960
+#define BUFFERED_IO
+#define CHUNK 11520
 
 /****************************************************************************
  * Private Data
@@ -70,7 +70,7 @@ static int count = 0;
 
 int serialrx_main(int argc, char *argv[])
 {
-  FAR char *buf = (FAR char *)malloc(CHUNK*3);
+  FAR char *buf = (FAR char *)malloc(CHUNK);
   FAR FILE *f;
   printf("Reading from %s\n", argv[1]);
   f = fopen(argv[1], "r");
@@ -78,14 +78,15 @@ int serialrx_main(int argc, char *argv[])
   while(1)
     {
 #ifdef BUFFERED_IO
-      int ret = fread(&buf[CHUNK], 1, CHUNK, f);   
+      int ret = fread(buf, 1, CHUNK, f);
 #else
-      int ret = read(f->fs_fd, buf, CHUNK); 
+      int ret = read(f->fs_fd, buf, CHUNK);
 #endif
       count += ret;
       if (count >= CHUNK)
         {
           printf("-");
+          fflush(stdout);
           count -= CHUNK;
         }
     }

apps/nshlib/nsh_parse.c

@@ -484,7 +484,7 @@ static int nsh_execute(FAR struct nsh_vtbl_s *vtbl,
    *               indicates that the application task was spawned successfully
    *               but returned failure exit status.
    *
-   * Note the priority if not effected by nice-ness.
+   * Note the priority is not effected by nice-ness.
    */
 
 #ifdef CONFIG_NSH_FILE_APPS