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David Fainitski 2022-09-04 07:31:00 -07:00 zatwierdzone przez GitHub
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// David Fainitski, N7DDC
// 2020
#include "pic_init.h"
#include "main.h"
#include "oled_control.h"
#include "Soft_I2C.h"
// global variables
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 = 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;
int Rel_Del = 8, rldl, min_for_start = 10, max_for_start = 150;
int Auto_delta = 130; // 1.3 SWR
#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 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;
//
if(Tick>=btn_cnt){ // every 10ms
btn_cnt += 10;
//
if(GetButton | Start){
disp_cnt = Disp_time;
off_cnt = Off_time;
}
//
if(GetButton){ //
if(btn_1_cnt<250) btn_1_cnt++;
if(btn_1_cnt==25) B_long = 1; // long pressing detected
if(btn_1_cnt==250 & OLED_PWD) B_xlong = 1; // Xtra long pressing detected
}
else if(btn_1_cnt>2 & btn_1_cnt<25){
B_short = 1; // short pressing detected
btn_1_cnt = 0;
}
else
btn_1_cnt = 0;
// External interface
if(Start){
if(btn_2_cnt<25) btn_2_cnt++;
if(btn_2_cnt==20 & Key_in) E_long = 1;
}
else if(btn_2_cnt>1 & btn_2_cnt<10){
E_short = 1;
btn_2_cnt = 0;
}
else
btn_2_cnt = 0;
}
}
return;
}
void main() {
pic_init();
Red = 1;
Key_out = 1;
gre = 1;
oled_start();
//if(Debug) check_reset_flags();
ADC_Init();
Overflow = 0;
//
disp_cnt = Disp_time;
off_cnt = Off_time;
//
rldl = Rel_Del;
//Relay_set(0, 0, 0);
//
while(1) {
if(Tick>=volt_cnt){ // every 3 second
volt_cnt += 3000;
Voltage_show();
}
//
if(Tick>=watch_cnt){ // every 300 ms unless power off
watch_cnt += 300;
watch_swr();
}
//
if(Disp_time!=0 && disp_cnt==0){ // Display off
//Disp = 0;
OLED_PWD = 0;
}
//
if(Off_time!=0 && off_cnt==0){ // Go to power off
power_off();
}
//
if(B_short){
if(OLED_PWD) Btn_short();
else oled_start();
}
if(B_long){
if(OLED_PWD) Btn_long();
else oled_start();
}
if(B_xlong){
if(OLED_PWD) Btn_xlong();
else oled_start();
}
// External interface
if(E_short){
if(OLED_PWD==0) oled_start();
Btn_short();
}
if(E_long){
if(OLED_PWD==0) { Ext_long(); oled_start(); }
else Btn_long();
}
} // while(1)
} // main
//
void oled_start(){
OLED_PWD = 1;
//Disp = 1;
Delay_ms(200);
Soft_I2C_init();
Delay_ms(10);
oled_init();
//
if(gre){
Greating();
gre = 0;
oled_clear();
}
oled_wr_str(0, 0, "PWR W", 9);
oled_bat();
oled_wr_str(2, 0, "SWR ", 9);
oled_wr_str(0, 42, "=", 1);
oled_wr_str(2, 42, "=", 1);
Voltage_old = 9999;
SWR_fixed_old = 100;
PWR_fixed_old = 9999;
SWR_ind = 0;
draw_swr(SWR_ind);
volt_cnt = Tick + 1;
watch_cnt = Tick;
B_short = 0; B_long = 0; B_xlong = 0, E_short = 0; E_long = 0;
disp_cnt = Disp_time;
off_cnt = Off_time;
return;
}
//
void watch_swr(void){
char peak_cnt, cnt;
int delta = Auto_delta - 100;
int PWR_fixed, SWR_fixed;
//
Delay_ms(50);
// peak detector
cnt = 600;
PWR_fixed = 0;
SWR_fixed = 0;
for(peak_cnt=0; peak_cnt<cnt; peak_cnt++){
get_pwr();
if(PWR>PWR_fixed) {PWR_fixed = PWR; SWR_fixed = SWR;}
Delay_ms(1);
}
//
if(PWR_fixed>0){ // Turn on the display
if(OLED_PWD){
disp_cnt = Disp_time;
off_cnt = Off_time;
}
else oled_start();
};
//
if(PWR_fixed!=PWR_fixed_old){
if(Overflow)
oled_wr_str(0, 42, ">", 1);
else
oled_wr_str(0, 42, "=", 1);
PWR_fixed_old = PWR_fixed;
draw_power(PWR_fixed);
}
//
if(SWR_fixed>99 && SWR_fixed!=SWR_ind){
SWR_ind = SWR_fixed;
if(PWR_fixed<10){
SWR_fixed = 0;
//SWR_ind = 0; // Last meassured SWR on display ! not a bug
draw_swr(SWR_ind);
return;
}
else
draw_swr(SWR_ind);
}
//
if(Overflow){
for(cnt=3; cnt!=0; cnt--){
oled_wr_str(2, 6, "OVERLOAD ", 9);
Delay_ms(500);
oled_wr_str(2, 0, " ", 9);
Delay_ms(500);
}
oled_wr_str(2, 0, "SWR ", 9);
oled_wr_str(2, 42, "=", 1);
draw_swr(SWR_fixed);
Delay_ms(500);
Overflow = 0;
}
//
else if(PWR_fixed>=min_for_start && PWR_fixed<max_for_start && SWR_fixed>99) {
if( (SWR_fixed-SWR_fixed_old)>delta || (SWR_fixed_old-SWR_fixed)>delta ) {
Btn_long();
return;
}
}
//
return;
}
//
void draw_swr(unsigned int s){
if(s==0)
oled_wr_str(2, 60, "0.00", 4);
else {
IntToStr(s, txt_2);
txt[0] = txt_2[3];
txt[1] = '.';
txt[2] = txt_2[4];
txt[3] = txt_2[5];
//
oled_wr_str(2, 60, txt, 4);
}
return;
}
//
void draw_power(unsigned int p){
//
if(p==0){
oled_wr_str(0, 60, "0.0", 3);
return;
}
else if(p<10){ // <1 W
IntToStr(p, txt_2);
txt[0] = '0';
txt[1] = '.';
txt[2] = txt_2[5];
}
else if(p<100){ // <10W
IntToStr(p, txt_2);
txt[0] = txt_2[4];
txt[1] = '.';
txt[2] = txt_2[5];
}
else{ // >10W
p += 5;
IntToStr(p, txt_2);
txt[0] = ' ';
txt[1] = txt_2[3];
txt[2] = txt_2[4];
}
oled_wr_str(0, 60, txt, 3);
return;
}
//
void Voltage_show(){ // 4.2 - 3.4 4200 - 3400
get_batt();
if(Voltage != Voltage_old) {
Voltage_old = Voltage;
oled_voltage(Voltage);
if(Voltage<=3800) rldl = Rel_Del + 1;
else rldl = Rel_Del;
}
//
if(Voltage>3700){
Green = 0;
Red = 1;
Delay_ms(30);
Green = 1;
Red = 1;
}
else if(Voltage>3590){
Green = 0;
Red = 0;
Delay_ms(30);
Green = 1;
Red = 1;
}
else { // <3.7V
Red = 0;
Green = 1;
Delay_ms(30);
Red = 1;
Green = 1;
}
if(Voltage<3400){
oled_clear();
oled_wr_str(1, 0, " LOW BATT ", 11);
Delay_ms(2000);
OLED_PWD = 0;
power_off();
}
return;
}
//
void Btn_xlong(){
oled_clear();
oled_wr_str(1, 0, " POWER OFF ", 11);
Delay_ms(2000);
power_off();
return;
}
//
void Btn_long(){
Green = 0;
oled_wr_str(2, 0, "TUNE ", 9);
Key_out = 0;
get_SWR();
if(SWR>99){
tune();
SWR_ind = SWR;
SWR_fixed_old = SWR;
oled_wr_str(2, 0, "SWR ", 4);
oled_wr_str(2, 42, "=", 1);
draw_swr(SWR_ind);
}
Key_out = 1;
Green = 1;
B_long = 0;
E_long = 0;
btn_1_cnt = 0;
volt_cnt = Tick;
watch_cnt = Tick;
return;
}
//
void Ext_long(){
Green = 0;
OLED_PWD = 1;
Key_out = 0; //
get_SWR(); //
if(SWR>99)
tune();
Key_out = 1; //
SWR_ind = SWR;
Green = 1;
E_long = 0;
return;
}
//
void Btn_short(){
Green = 0;
atu_reset();
oled_wr_str(2, 0, "RESET ", 9);
Delay_ms(600);
oled_wr_str(2, 0, "SWR ", 5);
oled_wr_str(2, 42, "=", 1);
oled_wr_str(2, 60, "0.00", 4);
SWR_fixed_old = 100;
Delay_ms(300);
Green = 1;
B_short = 0;
E_short = 0;
btn_1_cnt = 0;
volt_cnt = Tick;
watch_cnt = Tick;
return;
}
//
void Greating(){
Green = 0;
oled_clear();
oled_wr_str_s(1, 0, " DESIGNED BY N7DDC", 18);
oled_wr_str_s(3, 0, " FW VERSION ", 12);
oled_wr_str_s(3, 12*7, FW_VER, 3);
Delay_ms(3000);
while(GetButton) asm NOP;
Green = 1;
return;
}
//
void atu_reset(){
ind = 0;
cap = 1;
SW = 0;
Relay_set(ind, cap, SW);
return;
}
//
void Relay_set(char L, char C, char I){
L_010 = ~L.B0;
L_022 = ~L.B1;
L_045 = ~L.B2;
L_100 = ~L.B3;
L_220 = ~L.B4;
L_450 = ~L.B5;
L_1000 = ~L.B6;
//
C_22 = ~C.B0;
C_47 = ~C.B1;
C_100 = ~C.B2;
C_220 = ~C.B3;
C_470 = ~C.B4;
C_1000 = ~C.B5;
C_2200 = ~C.B6;
//
C_sw = I;
//
Rel_to_gnd = 1;
Vdelay_ms(rldl);
Rel_to_gnd = 0;
Delay_us(10);
Rel_to_plus_N = 0;
Vdelay_ms(rldl);
Rel_to_plus_N = 1;
Vdelay_ms(rldl);
//
L_010 = 0;
L_022 = 0;
L_045 = 0;
L_100 = 0;
L_220 = 0;
L_450 = 0;
L_1000 = 0;
//
C_22 = 0;
C_47 = 0;
C_100 = 0;
C_220 = 0;
C_470 = 0;
C_1000 = 0;
C_2200 = 0;
//
C_sw = 0;
return;
}
//
void power_off(void){
char btn_cnt;
// Disable interrupts
GIE_bit = 0;
T0EN_bit = 0;
TMR0IF_bit = 0;
IOCIE_bit = 1;
IOCBF5_bit = 0;
IOCBN5_bit = 1;
// Power saving
OLED_PWD = 0;
RED = 1;
Green = 1;
//
btn_cnt = 0;
while(1){
if(btn_cnt==0){ Delay_ms(100); IOCBF5_bit = 0; asm sleep; }
asm NOP;
Delay_ms(100);
if(GetButton) btn_cnt++;
else btn_cnt = 0;
if(btn_cnt>15) break;
}
// Enable interrupts
IOCIE_bit = 0;
IOCBN5_bit = 0;
IOCBF5_bit = 0;
T0EN_bit = 1;
GIE_bit = 1;
// Return to work
gre = 1;
oled_start();
while(GetButton){asm NOP;}
btn_1_cnt = 0;
btn_cnt = Tick;
return;
}
//
void check_reset_flags(void){
char i = 0;
if(STKOVF_bit){oled_wr_str_s(0, 0, "Stack overflow", 14); i = 1;}
if(STKUNF_bit){oled_wr_str_s(1, 0, "Stack underflow", 15); i = 1;}
if(!nRWDT_bit){oled_wr_str_s(2, 0, "WDT overflow", 12); i = 1;}
if(!nRMCLR_bit){oled_wr_str_s(3, 0, "MCLR reset ", 12); i = 1;}
if(!nBOR_bit){oled_wr_str_s(4, 0, "BOR reset ", 12); i = 1;}
if(i){
Delay_ms(5000);
oled_clear();
}
return;
}
//
int correction(int input) {
input *= 2;
//
if(input <= 543) input += 256;
else if(input <= 791) input += 274;
else if(input <= 1225) input += 288;
else if(input <= 1991) input += 286;
else if(input <= 2766) input += 288;
else if(input <= 3970) input += 260;
else if(input <= 5100) input += 250;
else input += 240;
//
return input;
}
//
int get_reverse(void){
unsigned int v;
unsigned long d;
ADC_Init_Advanced(_ADC_INTERNAL_VREFL | _ADC_INTERNAL_FVRH1);
Delay_us(100);
v = ADC_Get_Sample(REV_input);
if(v==1023){
ADC_Init_Advanced(_ADC_INTERNAL_VREFL | _ADC_INTERNAL_FVRH2);
Delay_us(100);
v = ADC_Get_Sample(REV_input) * 2;
}
if(v==2046){
ADC_Init_Advanced(_ADC_INTERNAL_VREFL | _ADC_INTERNAL_VREFH);
Delay_us(100);
v = ADC_Get_Sample(REV_input);
if(v==1023) Overflow = 1;
get_batt();
d = (long)v * (long)Voltage;
d = d / 1024;
v = (int)d;
}
return v;
}
//
int get_forward(void){
unsigned int v;
unsigned long d;
ADC_Init_Advanced(_ADC_INTERNAL_VREFL | _ADC_INTERNAL_FVRH1);
Delay_us(100);
v = ADC_Get_Sample(FWD_input);
if(v==1023){
ADC_Init_Advanced(_ADC_INTERNAL_VREFL | _ADC_INTERNAL_FVRH2);
Delay_us(100);
v = ADC_Get_Sample(FWD_input) * 2;
}
if(v==2046){
ADC_Init_Advanced(_ADC_INTERNAL_VREFL | _ADC_INTERNAL_VREFH);
Delay_us(100);
v = ADC_Get_Sample(FWD_input);
if(v==1023) Overflow = 1;
get_batt();
d = (long)v * (long)Voltage;
d = d / 1024;
v = (int)d;
}
return v;
}
//
void get_pwr(){
long Forward, Reverse;
float p;
//
Forward = get_forward();
Reverse = get_reverse();
//
p = correction(Forward);
P = p * 5 / 1000;
p = p / 1.414;
p = p * p;
p = p / 5;
p += 0.5;
PWR = p;
//
if(PWR>0){
if(OLED_PWD){
disp_cnt = Disp_time;
off_cnt = Off_time;
}
else oled_start();
}
//
if(Reverse >= Forward)
Forward = 999;
else {
Forward = ((Forward + Reverse) * 100) / (Forward - Reverse);
if(Forward>999) Forward = 999;
}
//
SWR = Forward;
return;
}
//
void get_swr(){
unsigned int pwr_cnt = 300, tuneoff_cnt = 300;
unsigned int PWR_max = 0;
get_pwr();
while(PWR<min_for_start || PWR>max_for_start){ // waiting for good power
if(B_short){
Btn_short();
SWR = 0;
break;
}
if(B_xlong){
//Btn_xlong();
SWR = 0;
break;
}
//
get_pwr();
if(pwr_cnt>0){
pwr_cnt --;
if(PWR>PWR_max)
PWR_max = PWR;
}
else {
if(PWR_max!=PWR_fixed_old) draw_power(PWR_max);
PWR_fixed_old = PWR_max;
PWR_max = 0;
pwr_cnt = 300;
if(tuneoff_cnt>0) tuneoff_cnt--;
else { SWR = 0; break; }
Delay_ms(1);
}
}
// good power
return;
}
//
void get_batt(void){
ADC_Init_Advanced(_ADC_INTERNAL_VREFL | _ADC_INTERNAL_FVRH1);
Delay_us(100);
Voltage = ADC_Get_Sample(Battery_input) * 11;
return;
}
//
void tune(void){
int SWR_mem;
char cap_mem, ind_mem;
subtune();
get_SWR();
if(SWR<=120) return;
SWR_mem = SWR;
cap_mem = cap;
ind_mem = ind;
if(SW==1) SW = 0;
else SW = 1;
subtune();
get_SWR();
if(SWR>SWR_mem){
if(SW==1) SW = 0;
else SW = 1;
cap = cap_mem;
ind = ind_mem;
Relay_set(ind, cap, SW);
Delay_ms(5);
get_SWR();
}
if(SWR<=120) return;
sharp_tune();
get_SWR();
return;
}
//
void subtune(void){
cap = 0;
ind = 0;
Relay_set(ind, cap, SW);
delay_ms(50);
get_SWR();
if(SWR<=120) return;
coarse_tune();
get_SWR();
if(SWR<=120) return;
sharp_tune();
return;
}
//
void coarse_tune(void){
int SWR_mem1 = 10000, SWR_mem2 = 10000, SWR_mem3 = 10000;
char ind_mem1, cap_mem1, ind_mem2, cap_mem2, ind_mem3, cap_mem3;
coarse_cap();
coarse_ind();
get_SWR();
if(SWR<=120) return;
SWR_mem1 = SWR;
ind_mem1 = ind;
cap_mem1 = cap;
if(cap<=2 & ind<=2){
cap = 0;
ind = 0;
Relay_set(ind, cap, SW);
Delay_ms(5);
coarse_ind();
coarse_cap();
get_SWR();
if(SWR<=120) return;
SWR_mem2 = SWR;
ind_mem2 = ind;
cap_mem2 = cap;
}
if(cap<=2 & ind<=2){
cap = 0;
ind = 0;
Relay_set(ind, cap, SW);
Delay_ms(5);
coarse_ind_cap();
get_SWR();
if(SWR<=120) return;
SWR_mem3 = SWR;
ind_mem3 = ind;
cap_mem3 = cap;
}
if(SWR_mem1<=SWR_mem2 & SWR_mem1<=SWR_mem3){
cap = cap_mem1;
ind = ind_mem1;
}
else if(SWR_mem2<=SWR_mem1 & SWR_mem2<=SWR_mem3){
cap = cap_mem2;
ind = ind_mem2;
}
else if(SWR_mem3<=SWR_mem1 & SWR_mem3<=SWR_mem2){
cap = cap_mem3;
ind = ind_mem3;
}
return;
}
//
void coarse_ind_cap(void){
int SWR_mem;
char ind_mem;
ind_mem = 0;
get_swr();
SWR_mem = SWR / 10;
for(ind=1; ind<64; ind*=2){
Relay_set(ind, ind, SW);
Delay_ms(5);
get_swr();
SWR = SWR/10;
if(SWR<=SWR_mem){
ind_mem = ind;
SWR_mem = SWR;
}
else
break;
}
ind = ind_mem;
cap = ind_mem;
Relay_set(ind, cap, SW);
Delay_ms(5);
return;
}
//
void coarse_cap(void){
int SWR_mem;
char cap_mem;
cap_mem = 0;
get_swr();
SWR_mem = SWR / 10;
for(cap=1; cap<64; cap*=2){
Relay_set(ind, cap, SW);
Delay_ms(5);
get_swr();
SWR = SWR/10;
if(SWR<=SWR_mem){
cap_mem = cap;
SWR_mem = SWR;
}
else
break;
}
cap = cap_mem;
Relay_set(ind, cap, SW);
Delay_ms(5);
return;
}
//
void coarse_ind(void){
int SWR_mem;
char ind_mem;
ind_mem = 0;
get_swr();
SWR_mem = SWR / 10;
for(ind=1; ind<64; ind*=2){
Relay_set(ind, cap, SW);
Delay_ms(5);
get_swr();
SWR = SWR/10;
if(SWR<=SWR_mem){
ind_mem = ind;
SWR_mem = SWR;
}
else
break;
}
ind = ind_mem;
Relay_set(ind, cap, SW);
Delay_ms(5);
return;
}
//
void sharp_tune(void){
if(cap>=ind){
sharp_cap();
sharp_ind();
}
else{
sharp_ind();
sharp_cap();
}
return;
}
//
void sharp_cap(void){
int SWR_mem;
char step, cap_mem;
cap_mem = cap;
step = cap / 10;
if(step==0) step = 1;
get_SWR();
SWR_mem = SWR;
cap += step;
Relay_set(ind, cap, SW);
Delay_ms(5);
get_SWR();
if(SWR<=SWR_mem){
SWR_mem = SWR;
cap_mem = cap;
for(cap+=step; cap<=(127-step); cap+=step){
Relay_set(ind, cap, SW);
Delay_ms(5);
get_SWR();
if(SWR<=SWR_mem){
cap_mem = cap;
SWR_mem = SWR;
step = cap / 10;
if(step==0) step = 1;
}
else
break;
}
}
else{
SWR_mem = SWR;
for(cap-=step; cap>=step; cap-=step){
Relay_set(ind, cap, SW);
Delay_ms(5);
get_SWR();
if(SWR<=SWR_mem){
cap_mem = cap;
SWR_mem = SWR;
step = cap / 10;
if(step==0) step = 1;
}
else
break;
}
}
cap = cap_mem;
Relay_set(ind, cap, SW);
Delay_ms(5);
return;
}
//
void sharp_ind(void){
int SWR_mem;
char step, ind_mem;
ind_mem = ind;
step = ind / 10;
if(step==0) step = 1;
get_SWR();
SWR_mem = SWR;
ind += step;
Relay_set(ind, cap, SW);
Delay_ms(5);
get_SWR();
if(SWR<=SWR_mem){
SWR_mem = SWR;
ind_mem = ind;
for(ind+=step; ind<=(127-step); ind+=step){
Relay_set(ind, cap, SW);
Delay_ms(5);
get_SWR();
if(SWR<=SWR_mem){
ind_mem = ind;
SWR_mem = SWR;
step = ind / 10;
if(step==0) step = 1;
}
else
break;
}
}
else{
SWR_mem = SWR;
for(ind-=step; ind>=step; ind-=step){
Relay_set(ind, cap, SW);
Delay_ms(5);
get_SWR();
if(SWR<=SWR_mem){
ind_mem = ind;
SWR_mem = SWR;
step = ind / 10;
if(step==0) step = 1;
}
else
break;
}
}
ind = ind_mem;
Relay_set(ind, cap, SW);
Delay_ms(5);
return;
}
//