kopia lustrzana https://github.com/threeme3/usdx
Add SWR Meter support for TQFP builds
Alain De Carolis
rodzic
1c77721fcf
commit
ed54802e06
74
QCX-SSB.ino
74
QCX-SSB.ino
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@ -33,6 +33,7 @@
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//#define ONEBUTTON 1 // Use single (encoder) button to control full the rig; optionally use L/R buttons to completely replace rotory encoder function
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//#define MOX_ENABLE 1 // Monitor-On-Xmit which is audio monitoring on speaker during transmit
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//#define F_MCU_16MHZ 1 // 16MHz ATMEGA328P crystal (enable for unmodified Arduino Uno/Nano boards with 16MHz crystal)
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//#define SWR_METER 1
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// QCX pin defintions
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#define LCD_D4 0 //PD0 (pin 2)
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@ -76,6 +77,16 @@
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#undef F_CPU
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#define F_CPU 20007000 // Actual crystal frequency of 20MHz XTAL1, note that this declaration is just informative and does not correct the timing in Arduino functions like delay(); hence a 1.25 factor needs to be added for correction.
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#ifdef SWR_METER
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float FWD;
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float SWR;
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float ref_V = 5 * 1.15;
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static uint32_t stimer;
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#define vin_FWD A6
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#define vin_REF A7
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#endif
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/*
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// UCX installation: On blank chip, use (standard Arduino Uno) fuse settings (E:FD, H:DE, L:FF), and use customized Optiboot bootloader for 20MHz clock, then upload via serial interface (with RX, TX and DTR lines connected to pin 1, 2, 3 respectively)
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// UCX pin defintions
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@ -1916,6 +1927,9 @@ void dsp_tx_fm()
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#define MLEA(y, x, L, M) (y) = (y) + ((((x) - (y)) >> (L)) - (((x) - (y)) >> (M))); // multiplierless exponental averaging [Lyons 13.33.1], with alpha=1/2^L - 1/2^M
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volatile uint8_t cwdec = 1;
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#ifdef SWR_METER
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volatile uint8_t swrmeter = 1;
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#endif
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static int32_t avg = 256;
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static uint8_t sym;
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const char m2c[] PROGMEM = "~ ETIANMSURWDKGOHVF*L*PJBXCYZQ**54S3***2**+***J16=/***H*7*G*8*90************?_****\"**.****@***'**-********;!*)*****,****:****";
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@ -3455,6 +3469,9 @@ void switch_rxtx(uint8_t tx_enable){
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#endif //PTX
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}
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si5351.freq_calc_fast(rit); si5351.SendPLLRegisterBulk(); // restore original PLL RX frequency
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#ifdef SWR_METER
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if(swrmeter > 0) { show_banner(); lcd.print(" "); }
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#endif
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lcd.setCursor(15, 1); lcd.print((vox) ? 'V' : 'R');
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#ifdef _SERIAL
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if(!vox) if(cat_active){ DDRC |= (1<<2); } // enable PC2, so that ADC2 is pulled-down so that CAT TX is not disrupted via mic input
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@ -3745,6 +3762,9 @@ const char* smode_label[] = { "OFF", "dBm", "S", "S-bar", "wpm", "Vss" };
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#else
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const char* smode_label[] = { "OFF", "dBm", "S", "S-bar", "wpm" };
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#endif
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#ifdef SWR_METER
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const char* swr_label[] = { "OFF", "FWD-SWR", "FWD-REF", "VFWD-VREF" };
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#endif
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const char* cw_tone_label[] = { "700", "600" };
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#ifdef KEYER
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const char* keyer_mode_label[] = { "Iambic A", "Iambic B","Straight" };
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@ -3756,7 +3776,7 @@ const char* keyer_mode_label[] = { "Iambic A", "Iambic B","Straight" };
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#define N_ALL_PARAMS (N_PARAMS+5) // number of parameters
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enum params_t {_NULL, VOLUME, MODE, FILTER, BAND, STEP, VFOSEL, RIT, AGC, NR, ATT, ATT2, SMETER, CWDEC, CWTONE, CWOFF, SEMIQSK, KEY_WPM, KEY_MODE, KEY_PIN, KEY_TX, VOX, VOXGAIN, DRIVE, TXDELAY, MOX, PWM_MIN, PWM_MAX, SIFXTAL, IQ_ADJ, CALIB, SR, CPULOAD, PARAM_A, PARAM_B, PARAM_C, BACKL, FREQA, FREQB, MODEA, MODEB, VERS, ALL=0xff};
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enum params_t {_NULL, VOLUME, MODE, FILTER, BAND, STEP, VFOSEL, RIT, AGC, NR, ATT, ATT2, SMETER, SWRMETER, CWDEC, CWTONE, CWOFF, SEMIQSK, KEY_WPM, KEY_MODE, KEY_PIN, KEY_TX, VOX, VOXGAIN, MOX, DRIVE, TXDELAY, SIFXTAL, PWM_MIN, PWM_MAX, IQ_ADJ, CALIB, SR, CPULOAD, PARAM_A, PARAM_B, PARAM_C, BACKL, FREQA, FREQB, MODEA, MODEB, VERS, ALL=0xff};
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int8_t paramAction(uint8_t action, uint8_t id = ALL) // list of parameters
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{
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@ -3780,6 +3800,9 @@ int8_t paramAction(uint8_t action, uint8_t id = ALL) // list of parameters
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case ATT2: paramAction(action, att2, 0x1B, F("ATT2"), NULL, 0, 16, false); break;
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case SMETER: paramAction(action, smode, 0x1C, F("S-meter"), smode_label, 0, _N(smode_label) - 1, false); break;
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case CWDEC: paramAction(action, cwdec, 0x21, F("CW Decoder"), offon_label, 0, 1, false); break;
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#ifdef SWR_METER
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case SWRMETER: paramAction(action, swrmeter, 0x1D, F("SWR Meter"), swr_label, 0, _N(swr_label) - 1, false); break;
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#endif
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#ifdef FILTER_700HZ
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case CWTONE: if(dsp_cap) paramAction(action, cw_tone, 0x22, F("CW Tone"), cw_tone_label, 0, 1, false); break;
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#endif
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@ -3867,6 +3890,10 @@ void initPins(){
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digitalWrite(PTX, LOW);
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pinMode(PTX, OUTPUT);
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#endif //PTX
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#ifdef SWR_METER
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pinMode(vin_FWD, INPUT);
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pinMode(vin_REF, INPUT);
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#endif
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#ifdef OLED // assign unused LCD pins
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pinMode(PD4, OUTPUT);
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pinMode(PD5, OUTPUT);
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@ -4216,6 +4243,48 @@ void build_lut()
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//lut[i] = min(pwm_max, (float)106*log(i) + pwm_min); // compressed microphone output: drive=0, pwm_min=115, pwm_max=220
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}
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#ifdef SWR_METER
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void readSWR()
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// reads FWD / REF values from A6 and A7 and computes SWR
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// credit Duwayne, KV4QB
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{
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float v_FWD = 0;
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float v_REF = 0;
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for (int i = 0; i <= 7; i++) {
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v_FWD = v_FWD + (ref_V / 1023) * (int) analogRead(vin_FWD);
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v_REF = v_REF + (ref_V / 1023) * (int) analogRead(vin_REF);
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delay(5);
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}
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v_FWD = v_FWD / 8;
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v_REF = v_REF / 8;
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float p_FWD = sq(v_FWD);
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float p_REV = sq(v_REF);
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float vRatio = v_REF / v_FWD;
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float VSWR = (1 + vRatio) / (1 - vRatio);
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if ((VSWR > 9.99) || (VSWR < 1) )VSWR = 9.99;
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if (p_FWD != FWD || VSWR != SWR) {
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lcd.noCursor();
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lcd.setCursor(0,0);
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switch(swrmeter) {
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case 1:
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lcd.print(" "); lcd.print(floor(100*p_FWD)/100); lcd.print("W SWR:"); lcd.print(floor(100*VSWR)/100);
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break;
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case 2:
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lcd.print(" F:"); lcd.print(floor(100*p_FWD)/100); lcd.print("W R:"); lcd.print(floor(100*p_REV)/100); lcd.print("W");
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break;
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case 3:
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lcd.print(" F:"); lcd.print(floor(100*v_FWD)/100); lcd.print("V R:"); lcd.print(floor(100*v_REF)/100); lcd.print("V");
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break;
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}
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FWD = p_FWD;
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SWR = VSWR;
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}
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}
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#endif
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void setup()
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{
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digitalWrite(KEY_OUT, LOW); // for safety: to prevent exploding PA MOSFETs, in case there was something still biasing them.
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@ -4656,6 +4725,9 @@ void loop()
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for(; !_digitalRead(DIT) ;){ // until released
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#endif
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wdt_reset();
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#ifdef SWR_METER
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if(smeter > 0 && mode == CW && millis() >= stimer) { readSWR(); stimer = millis() + 500; }
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#endif
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if(inv ^ _digitalRead(BUTTONS)) break; // break if button is pressed (to prevent potential lock-up)
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}
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switch_rxtx(0);
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