Ryo Od / Mbed 2 deprecated Nucleo_rtos_SPI_Master_Test

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Dependencies:   mbed-rtos mbed st7565LCD

Diff: main.cpp

Revision:
1:74e13cd94576
Parent:
0:36cebc939c49
Child:
2:95204570426c
diff -r 36cebc939c49 -r 74e13cd94576 main.cpp
--- a/main.cpp	Thu Sep 29 05:55:59 2016 +0000
+++ b/main.cpp	Thu Sep 29 07:41:01 2016 +0000
@@ -9,8 +9,31 @@
 SPI SpiM(PA_7, PA_6, PA_5); // mosi, miso, sclk
 DigitalOut SpiMCs(PB_6);
 
+InterruptIn stepChangeInterrupt(PC_7);
+//DigitalOut myled(PA_10);
+
+volatile bool isStepChanged = false;
 uint8_t prevSendVal = 0x00;
 
+//float delay = 1.0f;
+
+void setChangeStep()
+{
+    isStepChanged = true;
+    /*
+    static uint8_t f = 0x0f;
+    
+    Leds.write(f);
+    f = ~f & 0x0f;
+    */
+    /*
+    if (delay == 1.0)
+        delay = 0.2; // 200 ms
+    else
+        delay = 1.0; // 1 sec
+    */
+}
+
 int main()
 {
     printf("\r\n\nNucleo rtos SPI Master Test..\r\n");
@@ -32,6 +55,9 @@
     }
     */
     
+    // Setup Interrupt
+    stepChangeInterrupt.fall(&setChangeStep);
+    
     // Setup SPI
     SpiMCs = 1;
     SpiM.format(8, 0);
@@ -39,15 +65,19 @@
     
     for (;;) {
         uint8_t sendVal = ~Switches.read();
+        static uint8_t receivedVal;
         
-        if (prevSendVal != sendVal) {
+        //if (prevSendVal != sendVal) {
             SpiMCs = 0;
-            uint8_t receivedVal = SpiM.write(sendVal);
+            receivedVal = SpiM.write(sendVal);
             SpiMCs = 1;
             
             prevSendVal = sendVal;
-            
+        //}
+        
+        if (isStepChanged) {
             Leds.write(receivedVal & 0x0f);
+            isStepChanged = false;
         }
     }
 }