Diff: forum1828/forum1828.cpp

Revision:

0:98784e7c6163

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/forum1828/forum1828.cpp	Thu Feb 10 11:20:12 2011 +0000
@@ -0,0 +1,106 @@
+/**
+ * @file forum1828.cpp
+ * @see http://mbed.org/forum/mbed/topic/1828
+ * @code
+#include "mbed.h"
+
+#define P0_22_SEL_MASK    ~(3UL << 12)
+#define P0_22_SET_MASK    (1UL << 22)
+#define P0_22_CLR_MASK    ~(p15_SET_MASK)
+#define P0_22_AS_OUTPUT   LPC_PINCON->PINSEL1&=P0_22_SEL_MASK;LPC_GPIO0->FIODIR|=P0_22_SET_MASK
+#define P0_22_AS_INPUT    LPC_GPIO0->FIOMASK &= P0_22_CLR_MASK; 
+#define P0_22_SET         LPC_GPIO0->FIOSET = P0_22_SET_MASK
+#define P0_22_CLR         LPC_GPIO0->FIOCLR = P0_22_SET_MASK
+#define P0_22_IS_SET      (bool)(LPC_GPIO0->FIOPIN & P0_22_SET_MASK)
+#define P0_22_IS_CLR      !(P0_22_IS_SET)
+#define P0_22_MODE(x)     LPC_PINCON->PINMODE1&=P0_22_SEL_MASK;LPC_PINCON->PINMODE1|=((x&0x3)<<12)
+
+DigitalOut myled(LED1);
+DigitalOut led2(LED2);
+InterruptIn mybool(P0_22);
+
+void led2on(void) {
+    led2 = 1;
+}
+ 
+void led2off(void) {
+    led2 = 0;
+}   
+
+int main() {
+
+    // Setup InterruptIn as normal.
+    mybool.mode(PullUp);
+    mybool.rise(&led2on);
+    mybool.fall(&led2off);
+    
+    // Now cheat, manually switch it to an output.
+    P0_22_AS_OUTPUT;
+
+    while(1) {
+        myled = 1;
+        P0_22_SET; // Set the bool and led2on() is called.
+        wait(0.2);
+        
+        myled = 0;
+        P0_22_CLR; // Clear the bool and led2off() is called.
+        wait(0.2);
+    }
+}
+ 
+ * @endcode
+ */
+
+#ifdef FORUM_1828
+
+/**
+ * @see http://mbed.org/forum/mbed/topic/1828 
+ */
+
+#include "mbed.h"
+
+#define P0_22_SEL_MASK    ~(3UL << 12)
+#define P0_22_SET_MASK    (1UL << 22)
+#define P0_22_CLR_MASK    ~(p15_SET_MASK)
+#define P0_22_AS_OUTPUT   LPC_PINCON->PINSEL1&=P0_22_SEL_MASK;LPC_GPIO0->FIODIR|=P0_22_SET_MASK
+#define P0_22_AS_INPUT    LPC_GPIO0->FIOMASK &= P0_22_CLR_MASK; 
+#define P0_22_SET         LPC_GPIO0->FIOSET = P0_22_SET_MASK
+#define P0_22_CLR         LPC_GPIO0->FIOCLR = P0_22_SET_MASK
+#define P0_22_IS_SET      (bool)(LPC_GPIO0->FIOPIN & P0_22_SET_MASK)
+#define P0_22_IS_CLR      !(P0_22_IS_SET)
+#define P0_22_MODE(x)     LPC_PINCON->PINMODE1&=P0_22_SEL_MASK;LPC_PINCON->PINMODE1|=((x&0x3)<<12)
+
+DigitalOut myled(LED1);
+DigitalOut led2(LED2);
+InterruptIn mybool(P0_22);
+
+void led2on(void) {
+    led2 = 1;
+}
+ 
+void led2off(void) {
+    led2 = 0;
+}   
+
+int main() {
+
+    // Setup InterruptIn as normal.
+    mybool.mode(PullUp);
+    mybool.rise(&led2on);
+    mybool.fall(&led2off);
+    
+    // Now cheat, manually switch it to an output.
+    P0_22_AS_OUTPUT;
+
+    while(1) {
+        myled = 1;
+        P0_22_SET; // Set the bool and led2on() is called.
+        wait(0.2);
+        
+        myled = 0;
+        P0_22_CLR; // Clear the bool and led2off() is called.
+        wait(0.2);
+    }
+}
+
+#endif