diff --git a/prosjekt.X/fan_speeeed.c b/prosjekt.X/fan_speeeed.c index b4f001d..49e0c42 100644 --- a/prosjekt.X/fan_speeeed.c +++ b/prosjekt.X/fan_speeeed.c @@ -1,36 +1,37 @@ -//#include - #include "fan_speeeed.h" #include "uart.h" uint16_t timer_period_ms = 1; -uint16_t fan_speed; -volatile uint16_t falling_edge_counter_1 = 0; -volatile uint16_t falling_edge_counter_2 = 0; -#define MAX_PER 0x50 +uint16_t timer_period = 0.01; +uint16_t fan_speed = 0; +volatile uint16_t fan1_edge_counter = 0; +volatile uint16_t fan2_edge_counter = 0; void init_TCA0() { TCA0.SINGLE.INTCTRL = TCA_SINGLE_OVF_bm ; TCA0.SINGLE.CTRLA = TCA_SINGLE_ENABLE_bm | TCA_SINGLE_CLKSEL_DIV1024_gc ; /* Sysclk /1024 */ - TCA0.SINGLE.PERBUF = 3906; - //TCA0_update_period_ms(); + //TCA0.SINGLE.PERBUF = 3906; + TCA0_update_period(); } -void TCA0_update_period_ms() { - TCA0.SINGLE.PERBUF = (F_CPU * (1 / timer_period_ms) / 1024); /* F_CPU * F_IRQ / TCA_prescaler */ +void TCA0_update_period() { + TCA0.SINGLE.PERBUF = (F_CPU * (1 / timer_period) / 1024); /* F_CPU * F_IRQ / TCA_prescaler */ } -uint16_t RPM_calculation(uint16_t fancounter, uint16_t time) { - fan_speed = (fancounter / time); +// COUNTINGS / TIME = FREQUENCY +// FREQ / 2 = GIVES ACTUAL FREQ +// FREQ * SEC-IN-A-MINUTE(60) / FAN-BLADES +uint16_t RPM_calculation(uint16_t edge_counter, uint16_t time_ms) { + fan_speed = (edge_counter / time_ms); fan_speed = fan_speed/2; fan_speed = fan_speed * 60/5; - fancounter = 0; + edge_counter = 0; return fan_speed; } -void init_fanports() { +void init_fan_gpio() { // CONFIGURE PINS AS ANALOG INPUTS // PIN FOR FAN 1 @@ -49,7 +50,7 @@ void init_fanports() { PORTD.PIN7CTRL = PORT_ISC_INPUT_DISABLE_gc; } -void init_ac0(){ +void init_AC0(){ //Wincontroll disabled AC0.CTRLB = 0x00; @@ -65,7 +66,7 @@ void init_ac0(){ } -void init_ac1(){ +void init_AC1(){ //Wincontroll disabled AC1.CTRLB = 0x00; @@ -83,7 +84,7 @@ void init_ac1(){ ISR(AC0_AC_vect){ // AC0 vec flag cli(); - falling_edge_counter_1++; + fan1_edge_counter++; AC0.STATUS |= 0x10; //CMP flag to 0 sei(); } @@ -91,7 +92,7 @@ ISR(AC0_AC_vect){ // AC0 vec flag ISR(AC1_AC_vect){ // AC1 vec flag cli(); - falling_edge_counter_2++; + fan2_edge_counter++; AC1.STATUS |= 0x10; //CMP flag to 0 sei(); } @@ -99,15 +100,10 @@ ISR(AC1_AC_vect){ // AC1 vec flag // TIMER INTERUPT ISR (TCA0_OVF_vect) { cli(); - RPM_calculation(falling_edge_counter_1,1); - RPM_calculation(falling_edge_counter_2,1); - falling_edge_counter_1 = 0; - falling_edge_counter_2 = 0; + RPM_calculation(fan1_edge_counter,timer_period_ms); + RPM_calculation(fan2_edge_counter,timer_period_ms); + fan1_edge_counter = 0; + fan2_edge_counter = 0; TCA0.SINGLE.INTFLAGS = TCA_SINGLE_OVF_bm ; sei(); } - - -//----------------------------------------------------------------------------------------------------- -//-------------------------------------- S E T U P----------------------------------------------------- - diff --git a/prosjekt.X/fan_speeeed.h b/prosjekt.X/fan_speeeed.h index 9f40eaf..0f430ee 100644 --- a/prosjekt.X/fan_speeeed.h +++ b/prosjekt.X/fan_speeeed.h @@ -1,6 +1,6 @@ /* * File: fanseeeed.h - * Author: inami + * Author: inami, Helle Augland Grasmo * * Created on 13. mars 2024, 13:38 */ @@ -22,26 +22,27 @@ extern "C" { #include #include #include -#include + + // INITALICE TIMER COUNTER void init_TCA0(); - // UPDATE TIMER PERIODE + // UPDATE TIMER PERIOD void TCA0_update_period_ms (); // TAKES INN A TIME AND A THE COUNTED FAN DIPS // RETURNS THE RPM OF THE FAN - uint16_t RPM_calculation(uint16_t fancounter, uint16_t time); + uint16_t RPM_calculation(uint16_t edge_counter, uint16_t time_ms); // INITIALISING FAN PORTS - void init_fanports(); + void init_fan_gpio(); // INIT AC0 TO COMPARE PD6 AND PD7 - void init_ac0(); + void init_AC0(); // INIT AC1 TO COMPARE PD4 AND PD7 - void init_ac1(); + void init_AC1(); #ifdef __cplusplus } diff --git a/prosjekt.X/main.c b/prosjekt.X/main.c index 4d05257..71d3e55 100644 --- a/prosjekt.X/main.c +++ b/prosjekt.X/main.c @@ -24,10 +24,6 @@ #define F_CPU 4000000UL -#include -#include -#include - @@ -36,15 +32,12 @@ int main(void) { init_uart((uint16_t)9600); stdout = &USART_stream; init_TCA0(); - init_fanports(); - init_ac0(); - init_ac1(); - + init_fan_gpio(); + init_AC0(); + init_AC1(); sei(); - - /* Replace with your application code */ + while (1) { - //printf("loop") ; } } \ No newline at end of file