Mikrokontrollersystemer-gruppe-4/mikrokontrollersystemer-prosjekt
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add second fan

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This commit is contained in:
Elp03 2024-04-27 17:26:35 +02:00
parent 10c82d001e
commit e01c4d41ad
3 changed files with 61 additions and 44 deletions
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92
prosjekt.X/fan_speeeed.c
View File

@ -5,26 +5,12 @@
uint16_t timer_period_ms = 1;
uint16_t fan_speed;
volatile uint16_t falling_edge_counter = 0;
volatile uint16_t falling_edge_counter_1 = 0;
volatile uint16_t falling_edge_counter_2 = 0;
#define MAX_PER 0x50
void init_TCA0() {
//code
// PORTMUX.TCAROUTEA = PORTMUX_TCA0_PORTD_gc;
// port d ??? why
//PORTD.DIR = PIN0_bm;
//code
//TCA0.SINGLE.PERBUF = MAX_PER;
//TCA0.SINGLE.PERBUF = (F_CPU * (1 / timer_period_ms) / 1024); /* F_CPU * F_IRQ / TCA_prescaler */
//TCA0.SINGLE.CMP0BUF = MAX_PER/2;
//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();
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;
@ -35,50 +21,44 @@ void TCA0_update_period_ms() {
TCA0.SINGLE.PERBUF = (F_CPU * (1 / timer_period_ms) / 1024); /* F_CPU * F_IRQ / TCA_prescaler */
}
uint16_t RPM_calculation(uint16_t time) {
uint16_t RPM_calculation(uint16_t fancounter, uint16_t time) {
printf("time: %u", time);
fan_speed = (falling_edge_counter / time);
fan_speed = (fancounter / time);
fan_speed = fan_speed/2;
fan_speed = fan_speed * 60/5;
printf("falling edge: %u", falling_edge_counter);
falling_edge_counter = 0;
printf("falling edge: ", falling_edge_counter);
printf("falling edge: %u", fancounter);
fancounter = 0;
printf("falling edge: ", fancounter);
printf("fanspeed %u \n", fan_speed);
return fan_speed;
}
void PORTB_init() {
PORTA.OUTSET |= PIN5_bm;
PORTA.DIRSET |= PIN5_bm;
}
void init_ac0(){
void init_fanports() {
// CONFIGURE PINS AS ANALOG INPUTS
PORTD.DIRSET &= ~PIN6_bm;
PORTD.PIN6CTRL &= ~ PORT_ISC_gm;
PORTD.PIN6CTRL = PORT_ISC_INPUT_DISABLE_gc;
PORTD.DIRSET &= ~PIN7_bm;
PORTD.DIRSET &= ~PIN4_bm;
PORTD.PIN4CTRL &= ~ PORT_ISC_gm ;
PORTD.PIN4CTRL = PORT_ISC_INPUT_DISABLE_gc;
PORTD.DIRSET &= PIN7_bm;
PORTD.PIN7CTRL &= ~ PORT_ISC_gm ;
PORTD.PIN7CTRL = PORT_ISC_INPUT_DISABLE_gc;
}
PORTD.DIRSET &= PIN3_bm;
PORTD.PIN3CTRL &= ~ PORT_ISC_gm ;
PORTD.PIN3CTRL = PORT_ISC_INPUT_DISABLE_gc;
void init_ac0_fan1(){
//Wincontroll disabled
AC0.CTRLB = 0x00;
//SELECT POSITIVE AND NEGATIVE INPUTS FOR COMPARRISON
// FAN USE PD6 & PD7, COMPARE WITH PD3
AC0.MUXCTRL = AC_MUXPOS_AINP3_gc | AC_MUXNEG_AINN0_gc;
AC0.MUXCTRL = AC_MUXPOS_AINP3_gc | AC_MUXNEG_AINN2_gc;
//AC_MUXPOS_AINP1_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;
// TURN ON INTERUPT
@ -86,17 +66,49 @@ void init_ac0(){
}
void init_ac1_fan2(){
//Wincontroll disabled
AC1.CTRLB = 0x00;
//SELECT POSITIVE AND NEGATIVE INPUTS FOR COMPARRISON
// FAN USE PD6 & PD7, COMPARE WITH PD3
AC1.MUXCTRL = AC_MUXPOS_AINP2_gc | AC_MUXNEG_AINN2_gc;
// ENABLE AC BY WRITING 1 TO ENABLE BIT IN ACN.CTRLA
AC1.CTRLA = AC_ENABLE_bm | AC_INTMODE_NORMAL_POSEDGE_gc | AC_OUTEN_bm;
// TURN ON INTERUPT
AC1.INTCTRL = 0x01;
}
ISR(AC0_AC_vect){ // AC0 vec flag
cli();
falling_edge_counter++;
AC0.STATUS |= 0x10; //CMP flag to 0.
//printf("yo");
falling_edge_counter_1++;
printf("ac0");
AC0.STATUS |= 0x10; //CMP flag to 0
sei();
}
ISR(AC1_AC_vect){ // AC0 vec flag
cli();
falling_edge_counter_2++;
printf("ac1");
AC1.STATUS |= 0x10; //CMP flag to 0
sei();
}
ISR (TCA0_OVF_vect) {
cli();
RPM_calculation(1);
printf("fan1");
RPM_calculation(falling_edge_counter_1,1);
printf("fan2");
RPM_calculation(falling_edge_counter_2,1);
falling_edge_counter_1 = 0;
falling_edge_counter_2 = 0;
TCA0.SINGLE.INTFLAGS = TCA_SINGLE_OVF_bm ;
sei();
}

6
prosjekt.X/fan_speeeed.h
View File

@ -26,8 +26,10 @@ extern "C" {
void init_TCA0();
void TCA0_update_period_ms ();
uint16_t RPM_calculation(uint16_t time);
void init_ac0();
uint16_t RPM_calculation(uint16_t fancounter, uint16_t time);
void init_fanports();
void init_ac0_fan1();
void init_ac1_fan2();
#ifdef __cplusplus
}

5
prosjekt.X/main.c
View File

@ -36,7 +36,10 @@ int main(void) {
init_uart((uint16_t)9600);
stdout = &USART_stream;
init_TCA0();
init_ac0();
init_fanports();
init_ac0_fan1();
init_ac1_fan2();
sei();
/* Replace with your application code */