From 8bbde5260e9a77daf27ad9653103c8c58f07273a Mon Sep 17 00:00:00 2001
From: jakeg00dwin <jakegoodwin@gorge.works>
Date: Wed, 10 Apr 2024 13:36:50 -0700
Subject: [PATCH] rewrote to use 16bits for overflow events timer. Also set to
 the calculated 510ms

---
 main.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/main.c b/main.c
index 4c7be5f..2b3f5c3 100644
--- a/main.c
+++ b/main.c
@@ -32,6 +32,10 @@
 #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
@@ -70,13 +74,17 @@
  * 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
+ *
  * 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 66
+#define LONG_PRESS_TICKS 1493
 
 
 /*A structure to hold the button info*/
@@ -85,7 +93,7 @@ typedef struct {
     uint8_t is_bypassed: 1;
     uint8_t is_long_pressed: 1;
     uint8_t timer_enabled: 1;
-    uint8_t pressed_ticks;
+    uint16_t pressed_ticks;
     uint8_t input_pin;
     uint8_t output_pin;
 }btn_state; 
@@ -407,11 +415,11 @@ ISR(TIM0_OVF_vect)
     debounce_switch();
 
     /*Update the tick_count*/
-    if(btn1.timer_enabled && btn1.pressed_ticks <= UINT8_MAX){
+    if(btn1.timer_enabled && btn1.pressed_ticks <= UINT16_MAX){
         btn1.pressed_ticks += 1;
     }
 
-    if(btn2.timer_enabled && btn2.pressed_ticks <= UINT8_MAX){
+    if(btn2.timer_enabled && btn2.pressed_ticks <= UINT16_MAX){
         btn2.pressed_ticks += 1;
     }