add positive edge

prosjekt.X/fan_speeeed.c

@@ -1,3 +1,5 @@
+#include <avr/ioavr128db48.h>
+
 #include "fan_speeeed.h"
 #include "uart.h"
 
@@ -6,7 +8,7 @@ uint16_t fan_speed;
 volatile uint16_t falling_edge_counter = 0;
 #define MAX_PER 0x50
 
-void TCA0_init() {
+void init_TCA0() {
     
     //code 
     PORTMUX.TCAROUTEA = PORTMUX_TCA0_PORTD_gc; 
@@ -19,7 +21,6 @@ void TCA0_init() {
     TCA0.SINGLE.CTRLB = TCA_SINGLE_CMP0EN_bm | 0x03;
     TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
     
-    
     //TCA0.SINGLE.INTCTRL = TCA_SINGLE_OVF_bm;
     //TCA0.SINGLE.CTRLA = TCA_SINGLE_ENABLE_bm | TCA_SINGLE_CLKSEL_DIV1024_gc; /* Sysclk /1024 */
     //TCA0_update_period_ms();
@@ -36,124 +37,44 @@ uint16_t RPM_calculation(uint16_t test, uint16_t time) {
     return fan_speed;
 }
 
-void PORT_init() {
-    //compare or capture
-    TCB3.CCMP = 0x00;
-    //count
-    TCB3.CNT = 0x00;
-
-    PORTA.IN = PIN5_bm;
-    PORTA.PIN5CTRL = PORT_PULLUPEN_bm;
-
-    //PORTD.PIN2CTRL = PORT_ISC_FALLING_gc | 0b01000000;
-    //	TCB3.CTRLB =0<< TCB_ASYNC_bp       /* Asynchronous Enable: disabled */|0<< TCB_CCMPEN_bp    /* Pin Output Enable: disabled */|0<< TCB_CCMPINIT_bp  /* Pin Initial State: disabled */| TCB_CNTMODE_FRQ_gc;/* Input Capture Frequency measurement */
-    //	TCB3.EVCTRL =1<< TCB_CAPTEI_bp    /* Event Input Enable: enabled */|0<< TCB_EDGE_bp    /* Event Edge: disabled */|0<< TCB_FILTER_bp;/* Input Capture Noise Cancellation Filter: disabled */
-    //	TCB3.INTCTRL =1<< TCB_CAPT_bp     /* Capture or Timeout: enabled */|0<< TCB_OVF_bp;/* OverFlow Interrupt: disabled */
-    //	TCB3.CTRLA = TCB_CLKSEL_DIV1_gc     /* CLK_PER */|1<< TCB_ENABLE_bp   /* Enable: enabled */|0<< TCB_RUNSTDBY_bp /* Run Standby: disabled */|0<< TCB_SYNCUPD_bp  /* Synchronize Update: disabled */|0<< TCB_CASCADE_bp;/* Cascade Two Timer/Counters: disabled */
-
-    //ASYNC disabled; CCMPINIT disabled; CCMPEN disabled; CNTMODE FRQPW; 
-    TCB3.CTRLB = 0x03;
-
-    //DBGRUN disabled; 
-    //TCB3.DBGCTRL = 0x00;
-
-    //FILTER disabled; EDGE disabled; CAPTEI enabled; 
-    TCB3.EVCTRL = 0x01;
-
-    //OVF disabled; CAPT enabled; 
-    TCB3.INTCTRL = 0x01;
-
-    //OVF disabledAPT disabled; 
-    //TCB3.INTFLAGS = 0; CAPT disabled; 
-    //TCB3.INTFLAGS = 0x00;
-
-    //Temporary Value
-    //TCB3.TEMP = 0x00;
 
 
-    //EVSYS.CHANNEL0 = 0x40;
-    //EVSYS.SWEVENTA = 0x01;
-    //EVSYS.USERTCB3CAPT = 0x01;
-
-    //RUNSTDBY disabled; CASCADE disabled; SYNCUPD disabled; CLKSEL DIV1; ENABLE enabled; 
-    TCB3.CTRLA = 0x01;
-}
-
-void testsettup() {
-    PORTA.IN = PIN3_bm;
-    PORTA.PIN3CTRL = PORT_PULLUPEN_bm;
-    EVSYS.CHANNEL0 = 0x43;
-    TCB0.EVCTRL = TCB_CAPTEI_bm;
-    TCB0.INTCTRL = TCB_CAPT_bm;
-    TCB0.CTRLB = TCB_CNTMODE_FRQ_gc;
-    EVSYS.USERTCB0CAPT = EVSYS_USER_CHANNEL0_gc;
-    TCB0.CTRLA = TCB_CLKSEL_TCA0_gc | TCB_ENABLE_bm;
-
-}
-/*
-void TCB0_Init(void){
-    TCB3.CTRLB = TCB_CNTMODE_FRQPW_gc;    /* Input Capture Frequency */
-// TCB3.EVCTRL = TCB_CAPTEI_bm;        /* Event Input Enable: enabled */ 
-// TCB3.EVCTRL |= (1 << TCB_CAPTEI_bp | 1 << TCB_EDGE_bp | 1 << TCB_FILTER_bp);  /* Event Input Enable: enabled */ 
-// TCB3.INTCTRL = TCB_CAPT_bm;         /* Capture or Timeout: enabled */
-//TCB3.CTRLA = TCB_CLKSEL_DIV1_gc     /* CLK_PER/1 (From Prescaler) - This is needed to be able to count to 40 Hz with a 4 Mhz system clock */                                             
-//      | TCB_ENABLE_bm    /* Enable: enabled */
-//        | TCB_RUNSTDBY_bm;  /* Run Standby: enabled */
-//} 
-
-void EVSYS_Init(void) {
-    /* Zero-cross detector 0 out linked to event channel 0 */
-    EVSYS.CHANNEL0 = EVSYS_CHANNEL0_PORTA_PIN5_gc;
-    /* TCB uses event channel 0 */
-    EVSYS.USERTCB0CAPT = EVSYS_USER_CHANNEL0_gc;
-
-    //test
-    //EVSYS.CHANNEL0 = 0x40;
-    //EVSYS.SWEVENTA = 0x01;
-    //EVSYS.USERTCB3CAPT = 0x01;
-
-}
 
 void PORTB_init() {
     PORTA.OUTSET |= PIN5_bm;
     PORTA.DIRSET |= PIN5_bm;
 }
+// Voltage reference
+#define VDACREF 
+#define VREF 
+#define DACREF_VALUE (VDACREF * 256 / VREF)
+
+
+void init_ac(){
+    // CONFIGURE PINS AS ANALOG INPUTS
+    PORTD.PIN2CTRL = PORT_ISC_INPUT_DISABLE_gc;
+    
+    // SET BENCH MARK
+    
+    
+    //SELECT POSITIVER INPUTS muxs
+    AC0.MUXCTRLA = AC_MUXPOS_AINP0_gc | AC_MUXNEG_DACREF_gc;
+    
+    // OPTIONAL: ENABLE INNPUT PIN BY WRITING "1" TO OUTEN
+    AC0.CTRLA = 0x40; // 0b01000000
+    
+    // ENABLE AC BY WRITING 1 TO ENABLE BIT IN ACN.CTRLA
+    AC0.CTRLA |= PIN0_bm; // 0b00000001
+    AC0.CTRLA = AC_ENABLE_bm | AC_INTMODE_NORMAL_POSEDGE_gc | AC_OUTEN_bm;
+    
+    // SET CMP TO 1
+    AC0.INTCTRL = 0x01; 
+}
+
+ISR(AC0_AC_vect){ // AC0 vec flag 
+    AC0.STATUS |= 0x10; //CMP flag to 0. 
+}
+
 //-----------------------------------------------------------------------------------------------------
 //-------------------------------------- S E T U P-----------------------------------------------------
 
-/*
-ISR ( TCA0_OVF_vect ) {
-    cli();
-    RPM_calculation();
-    
-    TCA0.SINGLE.INTFLAGS = TCA_SINGLE_OVF_bm ;
-    
-    sei();
-}*/
-
-void printnie(uint8_t en, uint8_t to) {
-    printf("CNT %u", en);
-    printf("ccmp %u", to);
-}
-
-/*ISR (TCB0_INT_vect){
-    uint16_t yo = TCB0.CNT;
-   
-    uint16_t stewui = TCB0.CCMP; 
-    
-    printnie(yo, stewui);
-    TCB3.INTFLAGS = 0x03;
-    //TCB3.INTFLAGS = PIN0_bm;
-    
-}
- */
-
-/*
-ISR(PORTD_PORT_vect){
-   // cli();
-    falling_edge_counter ++;
-    
-    PORTD.INTFLAGS = PIN2_bm;
-    //sei();
-}
- * */

prosjekt.X/fan_speeeed.h

@@ -24,15 +24,11 @@ extern "C" {
 #include <avr/io.h>
 #include <avr/cpufunc.h>
     
-    void TCA0_init ();
+    void init_TCA0();    
-    void PORT_init();
-    void PORTB_init();
-    void testsettup();
-
-    
     void TCA0_update_period_ms ();
     uint16_t RPM_calculation(uint16_t test, uint16_t time);
-    void EVSYS_Init(void);
+
+    
 #ifdef	__cplusplus
 }
 #endif

prosjekt.X/main.c

@@ -22,56 +22,6 @@
 #include "themistor-temp.h"
 #include "fan_speeeed.h"
 
-/*
-void  main_1() {
-    
-    init_uart((uint16_t)9600);
-    stdout = &USART_stream;
-    TCA0_init ();*/
-    //PORT_init();  
-    //test
-    //TCB0_Init();
-    
-    //PORT_init();
-    //EVSYS_Init();
-    //PORTB_init();
-  //  testsettup();
-  
-  //TCB3.INTCTRL = 0b00000001;     // Bit 0 ? CAPT Capture Interrupt Enable
-  
-     //sei();
-     
-    //while (1) {
-        /*
-        printf("loop");
-        uint16_t yo = TCB3.CNT;
-        printf("CNT %u", yo);
-        uint16_t stewui = TCB3.CCMP; 
-        printf("CCMP %u", stewui);
-        */
-        //EVSYS.USERTCB0CAPT = EVSYS_USER_CHANNEL0_gc;
- //   EVSYS.CHANNEL0 = EVSYS_CHANNEL0_PORTA_PIN5_gc;
-    /* TCB uses event channel 0 */
-   /// EVSYS.USERTCB0CAPT = EVSYS_USER_CHANNEL0_gc;   
-    //uint8_t test = TCB3.CCMP;
-    //printf("ccmp %u", test);
-   // _delay_ms(500); 
-      //  ;
-  //  }
-//}
-
-/*ISR (TCB3_INT_vect){
-    uint16_t yo = TCB3.CNT;
-    printf("CNT %u", yo);
-    
-    uint16_t stewui = TCB3.CCMP; 
-    printf("CCMP %u", stewui);
-    
-    TCB3.INTFLAGS = 0x03;
-    //TCB3.INTFLAGS = PIN0_bm;
-    
-}*/
-
 #define F_CPU 4000000UL
 
 #include <avr/io.h>
@@ -79,69 +29,18 @@ void  main_1() {
 #include <util/delay.h>
 
 
-#define MAX_PER 0x50
 
-volatile uint16_t data = 0;
-volatile uint16_t cnt = 0; 
 
 int main(void) {
 
     init_uart((uint16_t)9600);
     stdout = &USART_stream;
     
-    //TCA Init
-/*
-    PORTMUX.TCAROUTEA = PORTMUX_TCA0_PORTD_gc;
-
-    PORTD.DIR = PIN0_bm;
-
-    TCA0.SINGLE.PERBUF = MAX_PER;
-
-    TCA0.SINGLE.CMP0BUF = MAX_PER / 2;
-
-    TCA0.SINGLE.CTRLB = TCA_SINGLE_CMP0EN_bm | 0x3;
-
-    TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
-*/
-    TCA0_init();
-    
-    //TCB Init
-/*
-    PORTA.IN = PIN3_bm;
-    PORTA.PIN3CTRL = PORT_PULLUPEN_bm;
-
-    EVSYS.CHANNEL0 = 0x43;
-
-    TCB0.EVCTRL = TCB_CAPTEI_bm;
-
-    TCB0.INTCTRL = TCB_CAPT_bm;
-
-    TCB0.CTRLB = TCB_CNTMODE_FRQ_gc;
-
-    EVSYS.USERTCB0CAPT = EVSYS_USER_CHANNEL0_gc;
-
-    TCB0.CTRLA = TCB_CLKSEL_TCA0_gc | TCB_ENABLE_bm;
-*/
-    //testsettup();
-    PORT_init();
     sei();
 
+    PIN2_bm
+    
     /* Replace with your application code */
     while (1) {
-        if (data) {
-            printf("TEST1_____ %u ", data);
-            data = RPM_calculation(data, cnt);
-            printf("TEST1 %u  ", data);
-            //printf("ccnt %d", cnt); 
-            data = 0;
-        }
     }
-}
-
-ISR(TCB0_INT_vect) {
-
-    data = TCB0.CCMP;
-    cnt = TCB0.CNT;
-
-    TCB0.INTFLAGS = TCB_CAPT_bm;
 }