prosjekt.X/i2c.c

@@ -8,9 +8,7 @@
 // read request
 volatile bool last_action_write = false;
 
-volatile uint8_t i2c_recv[I2C_RECV_BUF_SIZE] = {
-    0}; // Arbitrary length array to hold the received
-        // data, longer than max expected command
+volatile uint8_t i2c_recv[I2C_RECV_BUF_SIZE] = {0};
 volatile uint8_t i2c_recv_len = 0;
 
 void init_i2c(void) {
@@ -73,22 +71,12 @@ void i2c_stop_handler() {
     // Parse the received command data
     parse_command(i2c_recv, i2c_recv_len);
     
+    // If the received command is a write only command we want to route it now.
     if (i2c_recv[0] == CLEAR_BULK_FAN_SPEED || i2c_recv[0] == WRITE_CONFIG) {
         route_command(0);
     }
   }
   
-  /* Write only commands need to be routed now
-  switch (i2c_recv[0]) {
-      WRITE_CONFIG:
-      CLEAR_BULK_FAN_SPEED:
-        route_command(0);
-        break;
-      default:
-          break;
-  }
-  */
-  
   // Reset the buffer for future transmissions
   i2c_reset_recv();
 }
@@ -103,16 +91,14 @@ ISR(TWI0_TWIS_vect) {
     uint8_t data = 0;
 
     if (((TWI0.SSTATUS & TWI_DIR_bm) >> TWI_DIR_bp) == 0) {
-      // Data write Master -> Slave
+      // Data write Controller -> Target
       data = TWI0.SDATA;
 
       // Send the data to the write handler
       i2c_write_handler(data);
     } else {
-      // Data read Master <- Slave
+      // Data read Controller <- Target
       i2c_read_handler();
-      // data = TWI0.SDATA;
-      // TWI0.SDATA = 1;
     }
 
     // Acknowledge having received