switched the F_CPU to 9.6MHz instead of 9.8MHz, according to datasheet 9.6MHz is the correct value

.gitignore

@@ -1,3 +1,6 @@
 main.o
 main.map
 main.elf
+pre_built/attiny13_9-6Mhz.hex
+test_blink/waveform
+test_blink/main.hex

main.c

@@ -1,16 +1,18 @@
 /*
  * FileName: *.c
- * Date: 2023
+ * Date: 2024
  * Descripton: Program for Atiny13A controllers, controls DPDT relays and
  * has options to save settings in EEPROM.
  */
 
+//#define __AVR_ATtiny13A__
+
 #ifndef MCU
 #define MCU atiny13a
 #endif
 
 #ifndef F_CPU
-#define F_CPU 4800000UL
+#define F_CPU 9600000UL
 #endif
 
 
@@ -29,7 +31,7 @@
 #endif
 
 #ifndef UINT8_MAX
-#define UINT8_MAX 256
+#define UINT8_MAX 256 
 #endif
 
 //This is the bitpattern that should be at address 0x00
@@ -43,11 +45,7 @@
 #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.
-//#define DISABLE_TEMPORARY_SWITCH
 
 #define PIN_SW2     PINB3
 #define PIN_BYPASS2 PB4
@@ -58,25 +56,18 @@
 //The BLINK_QTY can be edited from 0-255 blinks
 #define BLINK_QTY   2
 #define BLINK_CNT 2 * BLINK_QTY
-#define BLINK_DELAY     200
+#define BLINK_DELAY     20
 
 
 
-/*The timing of "ticks" is dependent on the AVR timer's counter register
+/*Assuming default fuses are used then it's approximatly 33.4375ms per tick.
- * 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
  *
  * 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.
  * */
-//original sent had 60
+#define LONG_PRESS_TICKS 32 /*Approximatly 510ms*/
-#define LONG_PRESS_TICKS 66
 
 
 /*A structure to hold the button info*/
@@ -107,8 +98,6 @@ volatile uint8_t debounced_state;
 volatile uint8_t db_state[MAX_CHECKS];
 volatile uint8_t idx;
 
-volatile uint16_t tick_count;
-
 /*
  * ###############################
  * FUNCTION PROTOTYPES
@@ -206,15 +195,6 @@ 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)
@@ -374,8 +354,6 @@ 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
@@ -395,18 +373,14 @@ 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 <= UINT8_MAX){
         btn1.pressed_ticks += 1;
     }
@@ -415,7 +389,6 @@ ISR(TIM0_OVF_vect)
         btn2.pressed_ticks += 1;
     }
 
-
     /*Re-Enable global interrupts*/
     sei();
 }

makefile

@@ -7,10 +7,10 @@
 # Compiler
 CC = avr-gcc
 
-#Default cpu frequency is 9.8Mhz, 4.8 gives us less power consumption
+#Default cpu frequency is 9.6Mhz, 4.8 gives us less power consumption
 #F_CPU = 1000000UL
-F_CPU = 4800000UL
+#F_CPU = 4800000UL
-#F_CPU = 9800000UL
+F_CPU = 9600000UL
 MCU = attiny13a
 
 # Flags