Diff: main.cpp

Revision:

0:4146c9dd6aa5

Child:

1:57d9ea192a5e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Jan 09 14:19:29 2016 +0000
@@ -0,0 +1,90 @@
+#include "mbed.h"
+#include "irmp.h"
+
+#define LED_ON  0
+#define LED_OFF 1
+
+DigitalOut led(P0_14, 1);
+DigitalOut flash(P0_12, 1);
+
+Ticker t;
+
+// only for performance test
+Timer   timerPerfTest;
+int     timeISRMax = 0;
+float   timeISRAvg;
+int     timeISRAvgSum = 0;
+int     countISRCalls = 0;
+
+void irmpISR(void)
+{
+    int t1 = timerPerfTest.read_us();
+
+    irmp_ISR();             // call irmp ISR
+
+    int timeISR = timerPerfTest.read_us() - t1;     // calc time spent in worker ISR
+    if (timeISR > timeISRMax)                       // store maximum
+        timeISRMax = timeISR;
+    timeISRAvgSum += timeISR;                       // sum for avg
+    countISRCalls++;
+}
+
+int main() {
+    printf("IRMP on mbed\n");
+
+    led = LED_OFF;
+    timerPerfTest.start();
+
+    IRMP_DATA irmp_data;
+
+    irmp_init();                                                            // initialize irmp
+    t.attach_us(&irmpISR, 1E6 / F_INTERRUPTS);                              // call ISR 15.000 / s
+
+    // infinite loop, interrupts will blink PORTD pins and handle UART communications.
+    while (1)
+    {
+        flash = !flash;
+
+        if (irmp_get_data (&irmp_data))
+        {
+            // ir signal decoded, do something here...
+            // irmp_data.protocol is the protocol, see irmp.h
+            // irmp_data.address is the address/manufacturer code of ir sender
+            // irmp_data.command is the command code
+            // irm_data.flags is press/release information
+            // irmp_protocol_names[irmp_data.protocol] is the protocol name (if enabled, see irmpconfig.h)
+            // printf("proto %d addr %d cmd %d\n", irmp_data.protocol, irmp_data.address, irmp_data.command );
+
+            // sample decoding, turn LED on / off
+            if (irmp_data.protocol == IRMP_RC5_PROTOCOL && irmp_data.address == 5)      // old RC5 VCR Remote. TV uses address 0
+            {
+                if (irmp_data.flags == 0)       // switch only on button press
+                {
+                    switch (irmp_data.command)
+                    {
+                    case 0:     // Key '0'
+                        led = LED_OFF;
+                        break;
+                    case 1:     // Key '1'
+                        led = LED_ON;
+                        break;
+                    case 53:        // Key 'play'
+                        printf("bring me a beer!\n");
+                        break;
+                    case 54:        // Key 'stop'
+                        timeISRAvg = (float)timeISRAvgSum / countISRCalls;
+                        timeISRAvgSum = 0;
+                        countISRCalls = 0;
+                        printf("ISR max / avg runtime [microseconds] : %d / %5.2f\n", timeISRMax, timeISRAvg);
+                        timeISRMax = 0;
+                        break;
+                    }
+                }
+            }
+
+            // log to stdout
+            printf("proto %d addr %d cmd %d flags %x name %s\n", irmp_data.protocol, irmp_data.address, irmp_data.command, irmp_data.flags, irmp_protocol_names[irmp_data.protocol] );
+        }
+    }
+
+}