initial import

SPI Save for controling LEDs in Kirmesbuden

Signed-off-by: Jörg Biemann <joerg@Jorgs-MacBook-Pro.local>

1 files changed, 87 insertions, 0 deletions

diff --git a/Blinkme_spi.ino b/Blinkme_spi.ino
new file mode 100644
index 0000000..44ae27d
--- /dev/null
+++ b/Blinkme_spi.ino
@@ -0,0 +1,87 @@
+
+
+
+#include <SPI.h>
+
+// * CS - to digital pin 10  (SS pin)
+// * SDI - to digital pin 11 (MOSI pin)
+// * SDI - to digitak pin 12 (MISO pin)
+// * CLK - to digital pin 13 (SCK pin)
+
+// Vorbereitungen um als Slave Daten zu empfangen
+char recieve_buff [100];
+volatile byte pos;
+volatile boolean process_it;
+
+// PINS fuer SPI
+const int slaveSelectPin = 10;
+const int miso = 12;
+const int mosi = 11;
+
+
+
+void setup() {   
+  Serial.begin (115200);   // debugging
+  pinMode(slaveSelectPin, INPUT); 
+  pinMode(miso, OUTPUT);
+
+  // SPI als Slave aktivieren
+  SPCR |= _BV(SPE);
+
+  // interrupt vorbereitung
+  pos =0; //recieve Buffer leer
+  process_it = false;
+  SPI.attachInterrupt();
+
+  // initialize the digital pin as an output.
+  pinMode(0, OUTPUT);
+  pinMode(1, OUTPUT);
+  pinMode(2, OUTPUT);
+  pinMode(3, OUTPUT);
+
+  // ... und so weiter
+
+
+  // Initialize SPI
+  //  SPI.begin();
+}
+
+//PINS/Bitmask fuer LEDs
+int LED0 = 0x01;
+int LED1 = 0x02;
+int LED2 = 0x04;
+int LED3 = 0x08;
+
+int PWM_BASE = 15;
+
+
+ISR (SPI_STC_vect)
+{
+  byte c = SPDR; 
+  if (pos < sizeof recieve_buff)
+  {
+    recieve_buff[pos++] = c;
+    if (c == '\n')
+    {
+      process_it = true;
+    }
+  }
+}
+
+
+void loop()
+{
+
+  //Verarbeitung der empfangenen Nachricht
+  if (process_it == true)
+  { 
+    recieve_buff[pos]=0;
+    Serial.println (recieve_buff);
+    pos = 0;
+    process_it == false;
+  }
+
+Serial.println("huhu");
+
+}
+