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updated date, F_CPU, MAX_CHECKS and removed other code.

This commit is contained in:
jakeg00dwin 2024-05-22 18:23:37 -07:00
parent 29babf6c47
commit 32169dddb9
1 changed files with 11 additions and 43 deletions
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52
main.c
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@ -1,6 +1,6 @@
/*
* FileName: *.c
* Date: 2023
* Date: 2024
* Descripton: Program for Atiny13A controllers, controls DPDT relays and
* has options to save settings in EEPROM.
*/
@ -10,7 +10,7 @@
#endif
#ifndef F_CPU
#define F_CPU 4800000UL
#define F_CPU 9600000UL
#endif
@ -32,10 +32,6 @@
#define UINT8_MAX 256
#endif
#ifndef UINT16_MAX
#define UINT16_MAX 65536
#endif
//This is the bitpattern that should be at address 0x00
#define START_PATTERN 0xAA
#define END_PATTERN 0x55
@ -47,7 +43,7 @@
#define ROM_EP_ADR 0x3
//Debounce check number.
#define MAX_CHECKS 10
#define MAX_CHECKS 5
// Define DISABLE_TEMPORARY_SWITCH to turn off the ability to hold
// the switch to temporarily engage/bypass.
@ -66,25 +62,14 @@
/*The timing of "ticks" is dependent on the AVR timer's counter register
* so for an 8bit register the maximum value is 256. Given we stick with
* a 1Mhz cpu frequency can use this formula to calculate the number of
* interrupts(timer overflows) per second:
*
* OVF_S = (F_CPU / DIV)/ (2^8)
* 61 = (1000000 / 64) / 256
*
* for a 4.8MHz setup.
* OVF_S = (48000000 / 64) / 256 = 2929.6875
*
*so 0.510S = 510ms means we need about 1493 overflows or ticks
/*Assuming default fuses are used then it's approximatly 33.4375ms per tick.
*
* This is important because the ATiny13/A only have a single timer built into
* them.
*
* Ticks are used as our way of keep track of long button presses.
* */
#define LONG_PRESS_TICKS 1493
#define LONG_PRESS_TICKS 32 /*Approximatly 510ms*/
/*A structure to hold the button info*/
@ -93,7 +78,7 @@ typedef struct {
uint8_t is_bypassed: 1;
uint8_t is_long_pressed: 1;
uint8_t timer_enabled: 1;
uint16_t pressed_ticks;
uint8_t pressed_ticks;
uint8_t input_pin;
uint8_t output_pin;
}btn_state;
@ -115,8 +100,6 @@ volatile uint8_t debounced_state;
volatile uint8_t db_state[MAX_CHECKS];
volatile uint8_t idx;
volatile uint16_t tick_count;
/*
* ###############################
* FUNCTION PROTOTYPES
@ -151,7 +134,7 @@ void init_prog()
init_btn(&btn2, PIN_SW2, PIN_BYPASS2);
/*Wait 5ms for pull-up resistors voltage to become stable.*/
_delay_ms(5);
//_delay_ms(5);
/*check if the eeprom has info. */
while(! eeprom_is_ready()) {} //Blocks until eeprom is ready.
@ -214,15 +197,6 @@ int main()
* ###############################
*/
void inf_blink_test(){
DDRB |= (1<<PB3);
while(1){
PORTB ^= (1<<PB3);
_delay_ms(250);
}
}
//Made heavy use of static inline functions to improve readability.
static inline void blink_bypass1(void)
@ -382,8 +356,6 @@ static inline void debounce_switch() {
/*Setup the timer0 on the AVR*/
static inline void init_timer0() {
/*Zero out the tick_count var*/
tick_count = 0;
/*config to normal mode.*/
TCCR0A = 0x00; //stop timer
@ -406,20 +378,16 @@ static inline void init_timer0() {
//ISR(TIMER0_OVF_vect)
/*The interrupt service routine for the timer0*/
ISR(TIM0_OVF_vect)
ISR(TIM0_OVF_vect, ISR_BLOCK)
{
/*Disable global interrupts*/
cli();
/*Check the state of the switches*/
debounce_switch();
/*Update the tick_count*/
if(btn1.timer_enabled && btn1.pressed_ticks <= UINT16_MAX){
if(btn1.timer_enabled && btn1.pressed_ticks <= UINT8_MAX){
btn1.pressed_ticks += 1;
}
if(btn2.timer_enabled && btn2.pressed_ticks <= UINT16_MAX){
if(btn2.timer_enabled && btn2.pressed_ticks <= UINT8_MAX){
btn2.pressed_ticks += 1;
}