Diff: main.cpp

Revision:

1:ba17cd3b6ecf

Parent:

0:4cc5b11f7d91

Child:

2:46e25b11a043

--- a/main.cpp	Tue Sep 27 06:00:48 2016 +0000
+++ b/main.cpp	Tue Sep 27 09:46:20 2016 +0000
@@ -5,13 +5,26 @@
 #define SPI_SPEED   (10000000)
 
 BusOut Leds(PA_10, PB_3, PB_5, PB_4, PB_10, PA_8);
+DigitalOut StepChangePin(PC_7);
 
 SPISlave SpiS(PA_7, PA_6, PA_5, PA_4);    // mosi, miso, sclk, ssel
 
+unsigned int step = 0;
+
+void stepUp(void const* arg)
+{
+    step++;
+    
+    // Slaveにinterruptをかける。
+    StepChangePin.write(1);
+    StepChangePin.write(0);
+}
+
 int main()
 {
     printf("\r\n\nNucleo rtos SPISlave Test..\r\n");
     
+    // Setup LED
     for (int i = 0; i < 5; i++) {
         Leds.write(0x3f);
         Thread::wait(100);
@@ -19,17 +32,20 @@
         Thread::wait(100);
     }
 
+    // Setup SPISlave
     SpiS.format(8, 0);
     SpiS.frequency(SPI_SPEED);
 
-    unsigned int count = 0;
+    // RtosTimer
+    RtosTimer stepTimer(stepUp, osTimerPeriodic, (void *)0);
+    stepTimer.start(250);   // BPM:60
+    
     SpiS.reply(0);
     while(1) {
         if(SpiS.receive()) {
             int v = SpiS.read();   // Read byte from master
             Leds.write(v);
-            SpiS.reply(count % 16);
-            count++;
+            SpiS.reply(step % 16);
         }
     }
 }