Revision 0:d800d2507529, committed 2015-05-02

Comitter:

71GA

Date:

Sat May 02 17:14:30 2015 +0000

Commit message:

First commit of the program.

Changed in this revision

diff -r 000000000000 -r d800d2507529 main.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.c	Sat May 02 17:14:30 2015 +0000
@@ -0,0 +1,81 @@
+//IOCONFIG peripheral
+#define IOCON_P1_13     (*((volatile unsigned int *) 0x4002C0B4))
+
+//system register
+#define PCONP           (*((volatile unsigned int *) 0x400FC0C4)) 
+
+//GPIO registers for port 1
+#define DIR1            (*((volatile unsigned int *) 0x20098020))
+#define MASK1           (*((volatile unsigned int *) 0x20098030))
+#define PIN1            (*((volatile unsigned int *) 0x20098034))
+#define SET1            (*((volatile unsigned int *) 0x20098038))
+#define CLR1            (*((volatile unsigned int *) 0x2009803C))
+
+
+//function prototypes
+void delay(void);
+
+
+int main() {
+    
+    //first three bits of the IOCON_P1_13 register are 000
+    IOCON_P1_13 = (IOCON_P1_13 & !(0x7));
+    
+    //bits 3,4 of the IOCON_P1_13 are now 00 (no pullup/pulldown resistor)
+    IOCON_P1_13 = (IOCON_P1_13 & !(0x3<<3));
+    
+    //disable hysteresis
+    IOCON_P1_13 = (IOCON_P1_13 & !(0x1<<5));
+    
+    //disable inversion
+    IOCON_P1_13 = (IOCON_P1_13 & !(0x1<<6));
+    
+    //use SLEW - standard mode
+    IOCON_P1_13 = (IOCON_P1_13 & !(0x1<<9));
+    
+    //use normal push-pull operation
+    IOCON_P1_13 = (IOCON_P1_13 & !(0x1<<10));
+    
+    
+    
+    
+    
+    //turn on GPIO peripheral (not really needed)
+    PCONP = (PCONP | (1<<15));
+    
+    //make P1_13 an output GPIO
+    DIR1 = (DIR1 | (1<<13));
+    
+    //disable mask for GPIO pin P1_13
+    MASK1 = (MASK1 & !(1<<13));
+    
+    
+    //an endless loop
+    while(1){
+        
+        //turn on an LED
+        SET1 = (SET1 | (1<<13));
+        
+        delay();
+        
+        //turn off an LED
+        CLR1 = (CLR1 | (1<<13));  
+        
+        delay();
+        
+    }
+       
+}
+
+
+//a delay function
+void delay(void){
+    
+    volatile int time = 1000000;
+    
+    while(time){
+        
+        time = time - 1;
+        
+    }
+}

diff -r 000000000000 -r d800d2507529 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat May 02 17:14:30 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/8ab26030e058
\ No newline at end of file