diff --git a/0x000b_integer-data-type/0x000b_integer-data-type.c b/0x000b_integer-data-type/0x000b_integer-data-type.c
index c0f6fb3..6a0d6ab 100644
--- a/0x000b_integer-data-type/0x000b_integer-data-type.c
+++ b/0x000b_integer-data-type/0x000b_integer-data-type.c
@@ -8,7 +8,7 @@ int main(void) {
     stdio_init_all();                     
 
     __asm volatile (                        
-        "ldr r3, =0x40038000\n"             // address of PADS_BANK0
+        "ldr r3, =0x40038000\n"             // address of PADS_BANK0_BASE
         "ldr r2, =0x40028004\n"             // address of IO_BANK0 GPIO0.ctrl
         "movs r0, #16\n"                    // GPIO16 (start pin)
 
@@ -35,7 +35,7 @@ int main(void) {
             "blt  init_loop\n"              // loop until r0 == 20
     );                              
 
-    uint32_t pin = 16;                 
+    uint8_t pin = 16;                 
 
     while (1) {                     
         __asm volatile (                
diff --git a/Embedded-Hacking.pdf b/Embedded-Hacking.pdf
index d7a60c3..575a122 100644
Binary files a/Embedded-Hacking.pdf and b/Embedded-Hacking.pdf differ