Update README.md

Firmware/ATU-10_FW_15/main.c

@@ -12,7 +12,7 @@ char txt[8], txt_2[8];
 unsigned long Tick = 0; // ms system tick
 int Voltage, Voltage_old = 0;
 char btn_1_cnt = 0, btn_2_cnt = 0;
-unsigned long volt_cnt = 0, watch_cnt = 0, btn_cnt = 0, off_cnt, disp_cnt;
+unsigned long volt_cnt = 0, watch_cnt = 0, btn_cnt = 0, off_cnt = 10, disp_cnt=10;
 int PWR, SWR, SWR_ind = 0, SWR_fixed_old = 100, PWR_fixed_old = 9999;
 char ind = 0, cap = 0, SW = 0;
 bit Overflow, B_short, B_long, B_xlong, gre, E_short, E_long;
@@ -20,17 +20,19 @@ bit Overflow, B_short, B_long, B_xlong, gre, E_short, E_long;
 int Rel_Del = 8, rldl, min_for_start = 10, max_for_start = 150;
 int Auto_delta = 130; // 1.3 SWR
 
-unsigned long Disp_time = 300; //  Time in seconds
-unsigned long Off_time = 1800; //  Time in seconds
+#define Disp_time 300000 //  Time in milliseconds  0 to always on
+#define Off_time  0 //1800000 //  Time in milliseconds  0 to always on
 
 #define FW_VER "1.5"
 
 // interrupt processing
 void interupt() iv 0x0004  {
    //
-   if(TMR0IF_bit) {   // Timer0
+   if(TMR0IF_bit) {   // Timer0   every 1ms
       TMR0IF_bit = 0;
       Tick++;
+      if(disp_cnt!=0) disp_cnt--;
+      if(off_cnt!=0) off_cnt--;
       TMR0L = 0xC0;   // 8_000 cycles to OF
       TMR0H = 0xE0;
       //
@@ -38,8 +40,8 @@ void interupt() iv 0x0004  {
          btn_cnt += 10;
          //
          if(GetButton | Start){
-            disp_cnt = Tick + Disp_time*1000;
-            off_cnt = Tick + Off_time*1000;
+            disp_cnt = Disp_time;
+            off_cnt = Off_time;
          }
          //
          if(GetButton){  //
@@ -80,8 +82,8 @@ void main() {
    ADC_Init();
    Overflow = 0;
    //
-   disp_cnt = Tick + Disp_time*1000;
-   off_cnt = Tick + Off_time*1000;
+   disp_cnt = Disp_time;
+   off_cnt = Off_time;
 
    //
    rldl = Rel_Del;
@@ -98,12 +100,12 @@ void main() {
          watch_swr();
       }
       //
-      if(Tick>=disp_cnt){  // Display off
+      if(Disp_time!=0 && disp_cnt==0){  // Display off
          //Disp = 0;
          OLED_PWD = 0;
       }
       //
-      if(Tick>=off_cnt){    // Go to power off
+      if(Off_time!=0 && off_cnt==0){    // Go to power off
          power_off();
       }
       //
@@ -158,8 +160,8 @@ void oled_start(){
    volt_cnt = Tick + 1;
    watch_cnt = Tick;
    B_short = 0; B_long = 0; B_xlong = 0, E_short = 0; E_long = 0;
-   disp_cnt = Tick + Disp_time*1000;
-   off_cnt = Tick + Off_time*1000;
+   disp_cnt = Disp_time;
+   off_cnt = Off_time;
    return;
 }
 //
@@ -181,8 +183,8 @@ void watch_swr(void){
    //
    if(PWR_fixed>0){   // Turn on the display
       if(OLED_PWD){
-         disp_cnt = Tick + Disp_time*1000;
-         off_cnt = Tick + Off_time*1000;
+         disp_cnt = Disp_time;
+         off_cnt = Off_time;
       }
       else oled_start();
    };
@@ -581,8 +583,8 @@ void get_pwr(){
    //
    if(PWR>0){
       if(OLED_PWD){
-         disp_cnt = Tick + Disp_time*1000;
-         off_cnt = Tick + Off_time*1000;
+         disp_cnt = Disp_time;
+         off_cnt = Off_time;
       }
       else oled_start();
    }

README.md

@@ -3,6 +3,9 @@
 ### Official conversation group - https://groups.io/g/ATU100
 ### Schematic and assembly instruction by VK3PE - http://carnut.info/ATU_N7DDC/ATU-10/ATU-10_by-vk3pe_build_info/ATU-10_vk3pe_V1.2_ALL_INFO_290921.pdf
 
+###### AON FW is always on
+no automatic power off. Use button to power off after using to avoid discharging the battery.
+
 ###### New in FW version 1.5
 1 - Tuning algorithm improvement   
 2 - Minor changes