//begin of transistortester program
int main(void) {
uint8_t ii;
unsigned int max_time;
#ifdef SEARCH_PARASITIC
unsigned long n_cval; // capacitor value of NPN B-E diode, for deselecting the parasitic Transistor
int8_t n_cpre; // capacitor prefix of NPN B-E diode
#endif
#ifdef WITH_GRAPHICS
unsigned char options;
#endif
uint8_t vak_diode_nr; // number of the protection diode of BJT
union {
uint16_t pw;
uint8_t pb[2];
} rpins;
uint8_t x, y, z;
//switch on
ON_DDR = (1<<ON_PIN); // switch to output
ON_PORT = (1<<ON_PIN); // switch power on
#ifndef PULLUP_DISABLE
RST_PORT |= (1<<RST_PIN); // enable internal Pullup for Start-Pin
#endif
uint8_t tmp;
//ADC-Init
ADCSRA = (1<<ADEN) | AUTO_CLOCK_DIV; //prescaler=8 or 64 (if 8Mhz clock)
#ifdef __AVR_ATmega8__
// #define WDRF_HOME MCU_STATUS_REG
#define WDRF_HOME MCUCSR
#else
#define WDRF_HOME MCUSR
#if FLASHEND > 0x3fff
// probably was a bootloader active, disable the UART
UCSR0B = 0; // disable UART, if started with bootloader
#endif
#endif
wait500ms();
#if (PROCESSOR_TYP == 644) || (PROCESSOR_TYP == 1280)
#define BAUD_RATE 9600
// UBRR0H = (F_CPU / 16 / BAUD_RATE - 1) >> 8;
// UBRR0L = (F_CPU / 16 / BAUD_RATE - 1) & 0xff;
// UCSR0B = (1<<TXEN0);
// UCSR0C = (1<<USBS0) | (3<<UCSZ00); // 2 stop bits, 8-bit
// while (!(UCSR0A & (1<<UDRE0))) { }; // wait for send data port ready
#ifdef SWUART_INVERT
SERIAL_PORT &= ~(1<<SERIAL_BIT);
#else
SERIAL_PORT |= (1<<SERIAL_BIT);
#endif
SERIAL_DDR |= (1<<SERIAL_BIT);
#endif
tmp = (WDRF_HOME & ((1<<WDRF))); // save Watch Dog Flag
WDRF_HOME &= ~(1<<WDRF); //reset Watch Dog flag
wdt_disable(); // disable Watch Dog
#ifndef INHIBIT_SLEEP_MODE
// switch off unused Parts
#if PROCESSOR_TYP == 644
#ifdef PRUSART1
PRR0 = (1<<PRTWI) | (1<<PRSPI) | (1<<PRUSART1);
#else
PRR0 = (1<<PRTWI) | (1<<PRSPI) ;
#endif
// PRR1 = (1<<PRTIM3) ;
#elif PROCESSOR_TYP == 1280
PRR0 = (1<<PRTWI) | (1<<PRSPI) | (1<<PRUSART1);
PRR1 = (1<<PRTIM5) | (1<<PRTIM4) | (1<<PRTIM3) | (1<<PRUSART3) | (1<<PRUSART2) | (1<<PRUSART3);
#else
PRR = (1<<PRTWI) | (1<<PRSPI) | (1<<PRUSART0);
#endif
// disable digital inputs of Analog pins, but TP1-3 digital inputs must be left enabled for VGS measurement
DIDR0 = ((1<<ADC5D) | (1<<ADC4D) | (1<<ADC3D) | (1<<ADC2D) | (1<<ADC1D) | (1<<ADC0D)) & ~((1<<TP3) | (1<<TP2) | (1<<TP1));
TCCR2A = (0<<WGM21) | (0<<WGM20); // Counter 2 normal mode
TCCR2B = CNTR2_PRESCALER; //prescaler set in autoconf
#endif /* INHIBIT_SLEEP_MODE */
sei(); // enable interrupts
lcd_init(); //initialize LCD
// ADC_PORT = TXD_VAL;
// ADC_DDR = TXD_MSK;
if(tmp) {
// check if Watchdog-Event
// this happens, if the Watchdog is not reset for 2s
// can happen, if any loop in the Program doen't finish.
lcd_line1();
lcd_MEM_string(TestTimedOut); //Output Timeout
wait_about3s(); // time to read the Timeout message
switch_tester_off();
return 0;
}
#ifdef PULLUP_DISABLE
#ifdef __AVR_ATmega8__
SFIOR = (1<<PUD); // disable Pull-Up Resistors mega8
#else
MCUCR = (1<<PUD); // disable Pull-Up Resistors mega168 family
#endif
#endif
//#if POWER_OFF+0 > 1
// tester display time selection
#ifndef USE_EEPROM
EE_check_init(); // init EEprom, if unset
#endif
#ifdef WITH_ROTARY_SWITCH
// rotary_switch_present = eeprom_read_byte(&EE_RotarySwitch);
rotary.ind = ROT_MSK+1; //initilize state history with next call of check_rotary()
#endif
#ifdef WITH_HARDWARE_SERIAL
// ii = 60;
ii = 30;
#else
#if 1
for (ii=0; ii<60; ii++) {
if (RST_PIN_REG & (1 << RST_PIN))
break; // button is released
wait_about10ms();
}
#else
ii = 0;
if (!(RST_PIN_REG & (1<<RST_PIN))) {
// key is still pressed
ii = wait_for_key_ms(700);
}
#endif
display_time = OFF_WAIT_TIME; // LONG_WAIT_TIME for single mode, else SHORT_WAIT_TIME
if (ii > 30) {
display_time = LONG_WAIT_TIME; // ... set long time display anyway
}
#endif // WITH_HARDWARE_SERIAL
#if POWER_OFF+0 > 1
empty_count = 0;
mess_count = 0;
#endif
ADCconfig.RefFlag = 0;
Calibrate_UR(); // get Ref Voltages and Pin resistance
#ifdef WDT_enabled
wdt_enable(WDTO_2S); //Watchdog on
#endif
#ifdef WITH_MENU
if (ii >= 60) {
while(function_menu()); // selection of function
}
#endif
//*****************************************************************
//Entry: if start key is pressed before shut down
loop_start:
#if ((LCD_ST_TYPE == 7565) || (LCD_ST_TYPE == 1306))
lcd_command(CMD_DISPLAY_ON);
lcd_command(CMD_SET_ALLPTS_NORMAL); // 0xa4
#endif
lcd_clear(); // clear the LCD
ADC_DDR = TXD_MSK; // activate Software-UART
init_parts(); // reset parts info to nothing found
Calibrate_UR(); // get Ref Voltages and Pin resistance
lcd_line1(); // Cursor to 1. row, column 1
#ifdef BAT_CHECK
// Battery check is selected
Battery_check();
#else
lcd_MEM_string(VERSION_str); // if no Battery check, Version .. in row 1
#endif /* BAT_CHECK */
// begin tests
#if FLASHEND > 0x1fff
if (WithReference) {
/* 2.5V precision reference is checked OK */
#if POWER_OFF+0 > 1
if ((mess_count == 0) && (empty_count == 0))
#endif
{
/* display VCC= only first time */
lcd_line2();
lcd_MEM_string(VCC_str); // VCC=
Display_mV(ADCconfig.U_AVCC,3); // Display 3 Digits of this mV units
lcd_refresh(); // write the pixels to display, ST7920 only
wait_about1s(); // time to read the VCC= message
}
}
#endif
#ifdef WITH_VEXT
unsigned int Vext;
// show the external voltage
while (!(RST_PIN_REG & (1<<RST_PIN))) {
lcd_clear_line2();
lcd_MEM_string(Vext_str); // Vext=
ADC_DDR = 0; //deactivate Software-UART
Vext = W5msReadADC(TPext); // read external voltage
// ADC_DDR = TXD_MSK; //activate Software-UART
uart_newline(); // MAURO replaced uart_putc(' ') by uart_newline(), 'Z'
#if EXT_NUMERATOR <= (0xffff/U_VCC)
Display_mV(Vext*EXT_NUMERATOR/EXT_DENOMINATOR,3); // Display 3 Digits of this mV units
#else
DisplayValue((unsigned long)Vext*EXT_NUMERATOR/EXT_DENOMINATOR,-3,'V',3); // Display 3 Digits of this mV units
#endif
lcd_refresh(); // write the pixels to display, ST7920 only
wait_about300ms(); // delay to read the Vext= message
}
#endif /* WITH_VEXT */
#ifndef DebugOut
lcd_line2(); //LCD position row 2, column 1
#endif
EntladePins(); // discharge all capacitors!
if(PartFound == PART_CELL) {
lcd_clear();
lcd_MEM_string(Cell_str); // display "Cell!"
#if FLASHEND > 0x3fff
lcd_line2(); // use LCD line 2
Display_mV(cell_mv[0],3);
lcd_space();
Display_mV(cell_mv[1],3);
lcd_space();
Display_mV(cell_mv[2],3);
#endif
#ifdef WITH_SELFTEST
lcd_refresh(); // write the pixels to display, ST7920 only
wait_about2s();
AutoCheck(0x11); // full Selftest with "Short probes" message
#endif
goto tt_end;
}
#ifdef WITH_SELFTEST
#ifdef AUTO_CAL
lcd_cursor_off();
UnCalibrated = (eeprom_read_byte(&c_zero_tab[3]) - eeprom_read_byte(&c_zero_tab[0]));
if (UnCalibrated != 0) {
// if calibrated, both c_zero_tab values are identical! c_zero_tab[3] is not used otherwise
lcd_cursor_on();
}
#endif
#ifdef WITH_MENU
AutoCheck(0x00); //check, if selftest should be done, only calibration
#else
AutoCheck(0x01); //check, if selftest should be done, full selftest without MENU
#endif
#endif
#if FLASHEND > 0x1fff
lcd_clear_line2(); //LCD position row2, column 1
#else
lcd_line2(); //LCD position row2, column 1
#endif
lcd_MEM_string(TestRunning); //String: testing...
lcd_refresh(); // write the pixels to display, ST7920 only
#ifdef WITH_UART
uart_putc(0x03); // ETX, start of new measurement
uart_newline(); // MAURO Added
#endif
//
// check all 6 combinations for the 3 pins
// High Low Tri
CheckPins(TP1, TP2, TP3);
CheckPins(TP2, TP1, TP3);
CheckPins(TP1, TP3, TP2);
CheckPins(TP3, TP1, TP2);
CheckPins(TP2, TP3, TP1);
CheckPins(TP3, TP2, TP1);
// Capacity measurement is only possible correctly with two Pins connected.
// A third connected pin will increase the capacity value!
// if(((PartFound == PART_NONE) || (PartFound == PART_RESISTOR) || (PartFound == PART_DIODE)) ) {
if(PartFound == PART_NONE) {
// If no part is found yet, check separate if is is a capacitor
#ifdef DebugOut
lcd_data('C');
#endif
EntladePins(); // discharge capacities
//measurement of capacities in all 3 combinations
ReadCapacity(TP3, TP1);
#ifdef DebugOut
lcd_data('K');
#endif
#if DebugOut != 10
ReadCapacity(TP3, TP2);
#ifdef DebugOut
lcd_data('K');
#endif
ReadCapacity(TP2, TP1);
#ifdef DebugOut
lcd_data('K');
#endif
#endif
}
#ifdef WITH_UJT
// check for UJT
if (PartFound==PART_DIODE
&& NumOfDiodes==2 // UJT is detected as 2 diodes E-B1 and E-B2...
// && ResistorsFound==1 // ...and a resistor B1-B2
&& diodes.Anode[0]==diodes.Anode[1] // check diodes have common anode
// && (unsigned char)(ResistorList[0]+diodes.Anode[0])==2 // and resistor is between cathodes
)
// note: there also exist CUJTs (complementary UJTs); they seem to be (even) rarer than UJTs, and are not supported for now
{
CheckUJT();
}
#endif /* defined WITH_UJT */
#ifdef WITH_XTAL
if (PartFound==PART_NONE || ((PartFound==PART_CAPACITOR) && (cap.cpre_max == -12))) {
// still not recognized anything? then check for ceramic resonator or crystal
// these tests are time-consuming, so we do them last, and only on TP1/TP3
sampling_test_xtal();
}
#endif
//All checks are done, output result to display
#ifdef DebugOut
// only clear two lines of LCD
lcd_clear_line1();
#else
lcd_clear(); // clear total display
#endif
_trans = &ntrans; // default transistor structure to show
if (PartFound == PART_THYRISTOR) {
#ifdef WITH_GRAPHICS
lcd_big_icon(THYRISTOR|LCD_UPPER_LEFT);
lcd_draw_trans_pins(-8, 16);
lcd_set_cursor(0,TEXT_RIGHT_TO_ICON); // position behind the icon, Line 1
lcd_MEM_string(Thyristor); //"Thyristor"
#else
lcd_MEM_string(Thyristor); //"Thyristor"
PinLayout(Cathode_char,'G','A'); // CGA= or 123=...
#endif
goto TyUfAusgabe;
}
if (PartFound == PART_TRIAC) {
#ifdef WITH_GRAPHICS
lcd_big_icon(TRIAC|LCD_UPPER_LEFT);
lcd_draw_trans_pins(-8, 16);
lcd_set_cursor(0,TEXT_RIGHT_TO_ICON); // position behind the icon, Line 1
lcd_MEM_string(Triac); //"Triac"
#else
lcd_MEM_string(Triac); //"Triac"
PinLayout('1','G','2'); // CGA= or 123=...
#endif
goto TyUfAusgabe;
}
#ifdef WITH_PUT
if (PartFound == PART_PUT) {
static const unsigned char PUT_str[] MEM_TEXT = "PUT";
lcd_MEM_string(PUT_str);
_trans=&ptrans;
PinLayout('A','G',Cathode_char);
goto TyUfAusgabe;
}
#endif
#ifdef WITH_UJT
if (PartFound == PART_UJT) {
static const unsigned char UJT_str[] MEM_TEXT = "UJT";
lcd_MEM_string(UJT_str);
PinLayout('1','E','2');
#ifdef SamplingADC
static const unsigned char eta_str[] MEM_TEXT = " eta=";
lcd_next_line(0);
ResistorChecked[ntrans.e - TP_MIN + ntrans.c - TP_MIN - 1] = 0; // forget last resistance measurement
GetResistance(ntrans.c, ntrans.e); // resistor value is in ResistorVal[resnum]
DisplayValue(ResistorVal[ntrans.e - TP_MIN + ntrans.c - TP_MIN - 1],-1,LCD_CHAR_OMEGA,2);
lcd_MEM_string(eta_str); //"eta="
DisplayValue(ntrans.gthvoltage,0,'%',3);
#else /* ! SamplingADC */
static const unsigned char R12_str[] MEM_TEXT = "R12=";
lcd_next_line(0);
lcd_MEM_string(R12_str); //"R12="
DisplayValue(ResistorVal[ntrans.e - TP_MIN + ntrans.c - TP_MIN - 1],-1,LCD_CHAR_OMEGA,2);
lcd_data(',');
DisplayValue(((RR680PL * (unsigned long)(ADCconfig.U_AVCC - ntrans.uBE)) / ntrans.uBE)-RRpinPL,-1,LCD_CHAR_OMEGA,3);
#endif /* SamplingADC */
goto tt_end;
}
#endif /* WITH_UJT */
if (PartFound == PART_CAPACITOR) {
#if FLASHEND > 0x3fff
if ((cap.ca + cap.cb) == (TP1 + TP3)) {
show_Cap13(); // repeated capacity measurement
goto shut_off; // key was pressed or timeout
}
show_cap(0); // show capacity in normal way and measure additional parameters
#else
show_cap_simple(); // show capacity in normal way and measure additional parameters
#endif
goto tt_end;
} /* end PartFound == PART_CAPACITOR */
#ifdef WITH_XTAL
if (PartFound == PART_CERAMICRESONATOR) {
// static const unsigned char cerres_str[] MEM_TEXT = "Cer.resonator ";
lcd_MEM_string(cerres_str);
if (sampling_measure_xtal()) goto loop_start;
goto tt_end;
}
if (PartFound == PART_XTAL) {
// static const unsigned char xtal_str[] MEM_TEXT = "Crystal ";
lcd_MEM_string(xtal_str);
if (sampling_measure_xtal()) goto loop_start;
goto tt_end;
}
#endif
// ========================================
if(PartFound == PART_DIODE) {
// ========================================
if(NumOfDiodes == 1) { //single Diode
// lcd_MEM_string(Diode); //"Diode: "
#if FLASHEND > 0x1fff
// enough memory (>8k) to sort the pins and additional Ir=
DiodeSymbol_withPins(0);
GetIr(diodes.Cathode[0],diodes.Anode[0]); // measure and output Ir=x.xuA
#else
// too less memory to sort the pins
DiodeSymbol_withPins(0);
#endif
UfAusgabe(0x70); // mark for additional resistor and output Uf= in line 2
#ifndef SamplingADC
/* load current of capacity is (5V-1.1V)/(470000 Ohm) = 8298nA */
ReadCapacity(diodes.Cathode[0],diodes.Anode[0]); // Capacity opposite flow direction
if (cap.cpre < -3) { /* capacity is measured */
#if (LCD_LINES > 2)
lcd_line3(); // output Capacity in line 3
#endif
lcd_MEM_string(Cap_str); //"C="
#if LCD_LINE_LENGTH > 16
DisplayValue(cap.cval,cap.cpre,'F',3);
#else
DisplayValue(cap.cval,cap.cpre,'F',2);
#endif
}
#else // SamplingADC
showdiodecap:
cap.cval=sampling_cap(diodes.Cathode[0],diodes.Anode[0],0); // at low voltage
lcd_next_line_wait(0); // next line, wait 5s and clear line 2
DisplayValue(cap.cval,sampling_cap_pre,'F',2);
#ifdef PULLUP_DISABLE
lcd_data('-');
cap.cval=sampling_cap(diodes.Cathode[0],diodes.Anode[0],1); // at high voltage
if (cap.cval < 0) cap.cval = 0; // don't show negativ value
DisplayValue(cap.cval,sampling_cap_pre,'F',2);
#if LCD_LINE_LENGTH > 16
lcd_MEM_string(AT05volt); // " @0-5V"
#else
lcd_MEM_string(AT05volt+1); // "@0-5V"
#endif
uart_newline(); // MAURO Diode ('A')
#else
#warning Capacity measurement from high to low not possible for diodes without PULLUP_DISABLE option!
#endif /* PULLUP_DISABLE */
#endif
goto end3;
} else if(NumOfDiodes == 2) { // double diode
lcd_data('2');
lcd_MEM_string(Dioden); //"diodes "
if(diodes.Anode[0] == diodes.Anode[1]) { //Common Anode
DiodeSymbol_CpinApin(0); // 1-|<-2
DiodeSymbol_ACpin(1); // ->|-3
UfAusgabe(0x01);
#ifdef SamplingADC
goto showdiodecap; // double diodes are often varicap; measure capacitance of one of them
#else
goto end3;
#endif
}
if(diodes.Cathode[0] == diodes.Cathode[1]) { //Common Cathode
DiodeSymbol_ApinCpin(0); // 1->|-2
DiodeSymbol_CApin(1); // -|<-3
UfAusgabe(0x01);
#ifdef SamplingADC
goto showdiodecap; // double diodes are often varicap; measure capacitance of one of them
#else
goto end3;
#endif
// else if ((diodes.Cathode[0] == diodes.Anode[1]) && (diodes.Cathode[1] == diodes.Anode[0]))
}
if (diodes.Cathode[0] == diodes.Anode[1]) {
// normaly two serial diodes are detected as three diodes, but if the threshold is high
// for both diodes, the third diode is not detected.
// can also be Antiparallel
diode_sequence = 0x01; // 0 1
SerienDiodenAusgabe();
goto end3;
}
if (diodes.Cathode[1] == diodes.Anode[0]) {
diode_sequence = 0x10; // 1 0
SerienDiodenAusgabe();
goto end3;
}
} else if(NumOfDiodes == 3) {
//Serial of 2 Diodes; was detected as 3 Diodes
diode_sequence = 0x33; // 3 3
/* Check for any constellation of 2 serial diodes:
Only once the pin No of anyone Cathode is identical of another anode.
two diodes in series is additionally detected as third big diode.
*/
if (diodes.Cathode[0] == diodes.Anode[1]) {
diode_sequence = 0x01; // 0 1
}
if (diodes.Anode[0] == diodes.Cathode[1]) {
diode_sequence = 0x10; // 1 0
}
if (diodes.Cathode[0] == diodes.Anode[2]) {
diode_sequence = 0x02; // 0 2
}
if (diodes.Anode[0] == diodes.Cathode[2]) {
diode_sequence = 0x20; // 2 0
}
if (diodes.Cathode[1] == diodes.Anode[2]) {
diode_sequence = 0x12; // 1 2
}
if (diodes.Anode[1] == diodes.Cathode[2]) {
diode_sequence = 0x21; // 2 1
}
// if((ptrans.b<3) && (ptrans.c<3))
if(diode_sequence < 0x22) {
lcd_data('3');
lcd_MEM_string(Dioden); //"Diodes "
SerienDiodenAusgabe();
goto end3;
}
} // end (NumOfDiodes == 3)
lcd_MEM_string(Bauteil); //"Bauteil"
lcd_MEM_string(Unknown); //" unbek."
lcd_line2(); //2. row
lcd_data(NumOfDiodes + '0');
lcd_data('*');
lcd_MEM_string(AnKat_str); //"->|-"
lcd_MEM_string(Detected); //" detected"
goto not_known;
// end (PartFound == PART_DIODE)
// ========================================
} else if (PartFound == PART_TRANSISTOR) {
// ========================================
#ifdef SEARCH_PARASITIC
if ((ptrans.count != 0) && (ntrans.count !=0)) {
// Special Handling of NPNp and PNPn Transistor.
// If a protection diode is built on the same structur as the NPN-Transistor,
// a parasitic PNP-Transistor will be detected.
ReadCapacity(ntrans.e, ntrans.b); // read capacity of NPN base-emitter
n_cval = cap.cval; // save the found capacity value
n_cpre = cap.cpre; // and dimension
ReadCapacity(ptrans.b, ptrans.e); // read capacity of PNP base-emitter
// check if one hfe is very low. If yes, simulate a very low BE capacity
if ((ntrans.hfe < 500) && (ptrans.hfe >= 500)) n_cpre = -16; // set NPN BE capacity to low value
if ((ptrans.hfe < 500) && (ntrans.hfe >= 500)) cap.cpre = -16; // set PNP BE capacity to low value
if (((n_cpre == cap.cpre) && (cap.cval > n_cval))
|| (cap.cpre > n_cpre)) {
// the capacity value or dimension of the PNP B-E is greater than the NPN B-E
PartMode = PART_MODE_PNP;
} else {
PartMode = PART_MODE_NPN;
}
} /* end ((ptrans.count != 0) && (ntrans.count !=0)) */
#endif
// not possible for mega8, change Pin sequence instead.
if ((ptrans.count != 0) && (ntrans.count != 0)
&& (!(RST_PIN_REG & (1 << RST_PIN)))) {
// if the Start key is still pressed, use the other Transistor
#if 0
if (PartMode == PART_MODE_NPN) {
PartMode = PART_MODE_PNP; // switch to parasitic transistor
} else {
PartMode = PART_MODE_NPN; // switch to parasitic transistor
}
#else
PartMode ^= (PART_MODE_PNP - PART_MODE_NPN);
#endif
}
#ifdef WITH_GRAPHICS
lcd_set_cursor(0,TEXT_RIGHT_TO_ICON); // position behind the icon, Line 1
lcd_big_icon(BJT_NPN|LCD_UPPER_LEFT); // show the NPN Icon at lower left corner
if(PartMode == PART_MODE_NPN) {
// _trans = &ntrans; is allready selected a default
lcd_MEM_string(NPN_str); //"NPN "
if (ptrans.count != 0) {
lcd_data('p'); // mark for parasitic PNp
}
} else {
_trans = &ptrans; // change transistor structure
lcd_update_icon(bmp_pnp); // update for PNP
lcd_MEM_string(PNP_str); //"PNP "
if (ntrans.count != 0) {
lcd_data('n'); // mark for parasitic NPn
}
}
#else /* only character display */
if(PartMode == PART_MODE_NPN) {
// _trans = &ntrans; is allready selected a default
lcd_MEM_string(NPN_str); //"NPN "
if (ptrans.count != 0) {
lcd_data('p'); // mark for parasitic PNp
}
} else {
_trans = &ptrans; // change transistor structure
lcd_MEM_string(PNP_str); //"PNP "
if (ntrans.count != 0) {
lcd_data('n'); // mark for parasitic NPn
}
}
lcd_space();
#endif
// show the protection diode of the BJT
vak_diode_nr = search_vak_diode();
if (vak_diode_nr < 5) {
// no side of the diode is connected to the base, this must be the protection diode
#ifdef WITH_GRAPHICS
options = 0;
if (_trans->c != diodes.Anode[vak_diode_nr])
options |= OPT_VREVERSE;
lcd_update_icon_opt(bmp_vakdiode,options); // show the protection diode right to the Icon
#else /* only character display, show the diode in correct direction */
char an_cat; // diode is anode-cathode type
an_cat = 0;
#ifdef EBC_STYLE
#if EBC_STYLE == 321
// Layout with 321= style
an_cat = (((PartMode == PART_MODE_NPN) && (ntrans.c < ntrans.e)) ||
((PartMode != PART_MODE_NPN) && (ptrans.c > ptrans.e)));
#else
// Layout with EBC= style
an_cat = (PartMode == PART_MODE_NPN);
#endif
#else
// Layout with 123= style
an_cat = (((PartMode == PART_MODE_NPN) && (ntrans.c > ntrans.e))
|| ((PartMode != PART_MODE_NPN) && (ptrans.c < ptrans.e)));
#endif
if (an_cat) {
lcd_MEM_string(AnKat_str); //"->|-"
} else {
lcd_MEM_string(KatAn_str); //"-|<-"
}
#endif /* !WITH_GRAPHICS */
} /* endif vak_diode_nr < 6 */
#ifdef WITH_GRAPHICS
lcd_draw_trans_pins(-7, 16); // show the pin numbers
lcd_next_line(TEXT_RIGHT_TO_ICON); // position behind the icon, Line 2
lcd_MEM_string(hfe_str); //"B=" (hFE)
DisplayValue(_trans->hfe,-2,0,3);
lcd_next_line(TEXT_RIGHT_TO_ICON+1-LOW_H_SPACE); // position behind the icon+1, Line 3
lcd_data('I');
if (_trans->current >= 10000) {
lcd_data('e'); // emitter current has 10mA offset
_trans->current -= 10000;
} else {
lcd_data('c');
}
lcd_equal(); // lcd_data('=');
DisplayValue16(_trans->current,-6,'A',2); // display Ic or Ie current
lcd_next_line(TEXT_RIGHT_TO_ICON); // position behind the icon, Line 4
lcd_MEM_string(Ube_str); //"Ube="
Display_mV(_trans->uBE,3-LOW_H_SPACE);
last_line_used = 1;
#ifdef SHOW_ICE
if (_trans->ice0 > 0) {
lcd_next_line_wait(TEXT_RIGHT_TO_ICON-1-LOW_H_SPACE); // position behind the icon, Line 4 & wait and clear last line
lcd_MEM2_string(ICE0_str); // "ICE0="
DisplayValue16(_trans->ice0,-6,'A',2); // display ICEO
}
if (_trans->ices > 0) {
lcd_next_line_wait(TEXT_RIGHT_TO_ICON-1-LOW_H_SPACE); // position behind the icon, Line 4 & wait and clear last line
lcd_MEM2_string(ICEs_str); // "ICEs="
DisplayValue16(_trans->ices,-6,'A',2); // display ICEs
}
#endif
#else /* character display */
PinLayout('E','B','C'); // EBC= or 123=...
lcd_line2(); //2. row
lcd_MEM_string(hfe_str); //"B=" (hFE)
DisplayValue(_trans->hfe,-2,0,3);
#if FLASHEND > 0x1fff
lcd_space();
lcd_data('I');
if (_trans->current >= 10000) {
lcd_data('e'); // emitter current has 10mA offset
_trans->current -= 10000;
} else {
lcd_data('c');
}
lcd_equal(); // lcd_data('=');
DisplayValue16(_trans->current,-6,'A',2); // display Ic or Ie current
#endif
#if defined(SHOW_ICE)
lcd_next_line_wait(0); // next line, wait 5s and clear line 2
lcd_MEM_string(Ube_str); //"Ube="
Display_mV(_trans->uBE,3);
if (_trans->ice0 > 0) {
lcd_next_line_wait(0); // next line, wait 5s and clear line 2
lcd_MEM2_string(ICE0_str); // "ICE0="
DisplayValue16(_trans->ice0,-6,'A',3);
}
if (_trans->ices > 0) {
lcd_next_line_wait(0); // next line, wait 5s and clear line 2
lcd_MEM2_string(ICEs_str); // "ICEs="
DisplayValue16(_trans->ices,-6,'A',3);
}
#endif
#endif /* WITH_GRAPHICS */
#ifdef SHOW_VAKDIODE
if (vak_diode_nr < 5) {
lcd_next_line_wait(0); // next line, wait 5s and clear line 2/4
DiodeSymbol_withPins(vak_diode_nr);
lcd_MEM_string(Uf_str); //"Uf="
mVAusgabe(vak_diode_nr);
uart_newline(); // MAURO not verified ('D')
} /* end if (vak_diode_nr < 5) */
#endif
#ifdef WITH_GRAPHICS
PinLayoutLine('E','B','C'); // Pin 1=E ...
uart_newline(); // MAURO OK BJT ('E')
#endif
goto tt_end;
// end (PartFound == PART_TRANSISTOR)
// ========================================
} else if (PartFound == PART_FET) { /* JFET or MOSFET */
// ========================================
#ifdef WITH_GRAPHICS
unsigned char fetidx = 0;
lcd_set_cursor(0,TEXT_RIGHT_TO_ICON); // position behind the icon, Line 1
#endif
if((PartMode&P_CHANNEL) == P_CHANNEL) {
lcd_data('P'); //P-channel
_trans = &ptrans;
#ifdef WITH_GRAPHICS
fetidx = 2;
#endif
} else {
lcd_data('N'); //N-channel
// _trans = &ntrans; is allready selected as default
}
lcd_data('-'); // minus is used for JFET, D-MOS, E-MOS ...
uint8_t part_code;
part_code = PartMode&0x0f;
#ifdef WITH_GRAPHICS
if (part_code == PART_MODE_JFET) {
lcd_MEM_string(jfet_str); //"JFET"
lcd_big_icon(N_JFET|LCD_UPPER_LEFT);
if (fetidx != 0) {
lcd_update_icon(bmp_p_jfet); // update the n_jfet bitmap to p_jfet
}
} else { // no JFET
if ((PartMode&D_MODE) == D_MODE) {
lcd_data('D'); // N-D or P-D
fetidx += 1;
} else {
lcd_data('E'); // N-E or P-E
}
if (part_code == (PART_MODE_IGBT)) {
lcd_MEM_string(igbt_str); //"-IGBT"
lcd_big_icon(N_E_IGBT|LCD_UPPER_LEFT);
if (fetidx == 1) lcd_update_icon(bmp_n_d_igbt);
if (fetidx == 2) lcd_update_icon(bmp_p_e_igbt);
if (fetidx == 3) lcd_update_icon(bmp_p_d_igbt);
} else {
lcd_MEM_string(mosfet_str); //"-MOS "
lcd_big_icon(N_E_MOS|LCD_UPPER_LEFT);
if (fetidx == 1) lcd_update_icon(bmp_n_d_mos);
if (fetidx == 2) lcd_update_icon(bmp_p_e_mos);
if (fetidx == 3) lcd_update_icon(bmp_p_d_mos);
}
} /* end PART_MODE_JFET */
#else /* normal character display */
if (part_code == PART_MODE_JFET) {
lcd_MEM_string(jfet_str); //"-JFET"
} else { // no JFET
if ((PartMode&D_MODE) == D_MODE) {
lcd_data('D'); // N-D or P-D
} else {
lcd_data('E'); // N-E or P-E
}
if (part_code == (PART_MODE_IGBT)) {
lcd_MEM_string(igbt_str); //"-IGBT"
} else {
lcd_MEM_string(mosfet_str); //"-MOS "
}
} /* end PART_MODE_JFET */
if (part_code == PART_MODE_IGBT) {
PinLayout('E','G','C'); // SGD= or 123=...
} else if (part_code == PART_MODE_JFET) {
PinLayout('?','G','?'); // ?G?= or 123=...
} else {
PinLayout('S','G','D'); // SGD= or 123=...
}
#endif /* WITH_GRAPHICS */
vak_diode_nr = search_vak_diode();
if(vak_diode_nr < 5) {
//MOSFET with protection diode; only with enhancement-FETs
#ifndef WITH_GRAPHICS
#if FLASHEND <= 0x1fff
char an_cat; // diode is anode-cathode type
an_cat = 0;
#ifdef EBC_STYLE
#if EBC_STYLE == 321
// layout with 321= style
an_cat = (((PartMode&P_CHANNEL) && (ptrans.c > ptrans.e)) || ((!(PartMode&P_CHANNEL)) && (ntrans.c < ntrans.e)));
#else
// Layout with SGD= style
an_cat = (PartMode&P_CHANNEL); /* N or P MOS */
#endif
#else /* EBC_STYLE not defined */
// layout with 123= style
an_cat = (((PartMode & P_CHANNEL) && (ptrans.c < ptrans.e))
|| ((!(PartMode & P_CHANNEL)) && (ntrans.c > ntrans.e)));
#endif /* end ifdef EBC_STYLE */
// show diode symbol in right direction (short form for less flash memory)
if (an_cat) {
lcd_data(LCD_CHAR_DIODE1); //show Diode symbol >|
} else {
lcd_data(LCD_CHAR_DIODE2); //show Diode symbol |<
}
#endif
#endif /* not WITH_GRAPHICS */
#ifdef WITH_GRAPHICS
options = 0;
if (_trans->c != diodes.Anode[vak_diode_nr])
options |= OPT_VREVERSE;
lcd_update_icon_opt(bmp_vakdiode,options); // update Icon with protection diode
#endif
} /* end if NumOfDiodes == 1 */
#ifdef WITH_GRAPHICS
lcd_draw_trans_pins(-7, 16); // update of pin numbers must be done after diode update
lcd_next_line(TEXT_RIGHT_TO_ICON); // position text behind the icon, Line 2
#if LCD_LINES > 6
lcd_next_line(TEXT_RIGHT_TO_ICON); // double line
#endif
if((PartMode&D_MODE) != D_MODE) { //enhancement-MOSFET
lcd_MEM_string(vt_str+1); // "Vt="
Display_mV(_trans->gthvoltage,2); //Gate-threshold voltage
//Gate capacity
ReadCapacity(_trans->b,_trans->e); //measure capacity
lcd_next_line(TEXT_RIGHT_TO_ICON); // position text behind the icon, Line 3
lcd_show_Cg(); // show Cg=xxxpF
#ifdef SHOW_R_DS
lcd_show_rds(TEXT_RIGHT_TO_ICON-1); // show RDS at column behind the icon -1
#endif
} else { /* depletion mode */
if ((PartMode&0x0f) != PART_MODE_JFET) { /* kein JFET */
ReadCapacity(_trans->b,_trans->e); //measure capacity
lcd_show_Cg(); // show Cg=xxxpF
#ifdef FET_Idss
} else { // it is a JFET
// display the I_DSS, if measured
if (_trans->uBE!=0) {
static const unsigned char str_Idss[] MEM_TEXT = "Idss=";
lcd_MEM_string(str_Idss);
DisplayValue16(_trans->uBE,-6,'A',2);
}
#endif
}
// set cursor below the icon
#define LINE_BELOW_ICON ((ICON_HEIGHT/8)/((FONT_HEIGHT+7)/8))
#if LCD_LINES > 6
lcd_set_cursor((LINE_BELOW_ICON + 1) * PAGES_PER_LINE,0);
#else
lcd_set_cursor(LINE_BELOW_ICON * PAGES_PER_LINE,0);
#endif
lcd_data('I');
#if (LCD_LINE_LENGTH > 17)
lcd_data('d');
#endif
lcd_equal(); // lcd_data('=');
DisplayValue16(_trans->current,-6,'A',2);
lcd_MEM_string(Vgs_str); // "@Vg="
Display_mV(_trans->gthvoltage,2); //Gate-threshold voltage
#ifdef SHOW_ICE
// Display also the cutoff gate voltage, idea from Pieter-Tjerk
if (_trans->ice0<4800) { // can't trust cutoff voltage if close to 5V supply voltage, since then the transistor may not have been cut off at all
lcd_next_line_wait(0);
lcd_data('I');
#if (LCD_LINE_LENGTH > 17)
lcd_data('d');
#endif
lcd_equal(); // lcd_data('=');
DisplayValue16(0,-5,'A',2);
lcd_MEM_string(Vgs_str); // "@Vg="
Display_mV(_trans->ice0,2); // cutoff Gate voltage
#endif
}
#ifdef SHOW_R_DS
lcd_show_rds(0); // show Drain-Source resistance RDS at column 0
#endif
} /* end of enhancement or depletion mode WITH_GRAPHICS */
#else /* character display */
if((PartMode&D_MODE) != D_MODE) { //enhancement-MOSFET
//Gate capacity
lcd_line2(); // line 2
ReadCapacity(_trans->b,_trans->e); //measure capacity
lcd_show_Cg(); // show Cg=xxxpF
lcd_MEM_string(vt_str); // " Vt="
Display_mV(_trans->gthvoltage,2); //Gate-threshold voltage
#ifdef SHOW_R_DS
lcd_show_rds(0); // show Drain-Source resistance RDS at column 0
#endif
} else {
// depletion
#if FLASHEND > 0x1fff
if ((PartMode&0x0f) != PART_MODE_JFET) { /* kein JFET */
lcd_next_line(0); // line 2
ReadCapacity(_trans->b,_trans->e); //measure capacity
lcd_show_Cg(); // show Cg=xxxpF
#ifdef FET_Idss
} else { // it is a JFET
// display the I_DSS, if measured
if (_trans->uBE!=0) {
lcd_next_line(0);
static const unsigned char str_Idss[] MEM_TEXT = "Idss=";
lcd_MEM_string(str_Idss);
DisplayValue16(_trans->uBE,-6,'A',2);
}
#endif
}
lcd_next_line_wait(0); // line 2 or 3, if possible & wait and clear last line
#endif
lcd_data('I'); // show I=xmA@Vg=y.yV at line 2 or 3
#if (LCD_LINE_LENGTH > 17)
lcd_data('d');
#endif
lcd_equal(); // lcd_data('=');
DisplayValue16(_trans->current,-6,'A',2);
lcd_MEM_string(Vgs_str); // "@Vg="
Display_mV(_trans->gthvoltage,2); //Gate-threshold voltage
#ifdef SHOW_ICE
// Display also the cutoff gate voltage, idea from Pieter-Tjerk
if (_trans->ice0<4800) { // can't trust cutoff voltage if close to 5V supply voltage, since then the transistor may not have been cut off at all
lcd_next_line_wait(0);
lcd_data('I');
#if (LCD_LINE_LENGTH > 17)
lcd_data('d');
#endif
lcd_equal(); // lcd_data('=');
DisplayValue16(0,-5,'A',2);
lcd_MEM_string(Vgs_str); // "@Vg="
Display_mV(_trans->ice0,2); // cutoff Gate voltage
}
#endif
#ifdef SHOW_R_DS
lcd_show_rds(0); // show Drain-Source resistance RDS at column 0
#endif
} /* end of enhancement or depletion mode */
/* *************************************************** */
void show_vext() {
#ifdef WITH_VEXT
uint8_t key_pressed;
uint8_t key_long_pressed;
unsigned int Vext;
// show the external voltage
message_key_released(VOLTAGE_str);
key_long_pressed = 0;
#ifdef POWER_OFF
uint8_t times;
for (times=0;times<240;)
#else
while (1) /* wait endless without option POWER_OFF */
#endif
{
#ifdef TPex2
lcd_clear_line1(); // 2 Vext measurements
#else
lcd_clear_line2(); // only one measurement use line 2
#endif /* TPex2 */
#ifdef WITH_UART
uart_newline(); // start of new measurement
uart_newline(); // start of new measurement
#endif
lcd_MEM_string(Vext_str); // Vext=
Vext = W5msReadADC(TPext); // read external voltage
// ADC_DDR = TXD_MSK; //activate Software-UART
#if EXT_NUMERATOR <= (0xffff/U_VCC)
Display_mV(Vext*EXT_NUMERATOR/EXT_DENOMINATOR,3); // Display 3 Digits of this mV units
#else
Display_mV((unsigned long)Vext*EXT_NUMERATOR/EXT_DENOMINATOR,3); // Display 3 Digits of this mV units
#endif
#ifdef TPex2
lcd_clear_line2();
#ifdef WITH_UART
uart_newline(); // start of new measurement
#endif
lcd_MEM_string(Vext_str); // Vext=
Vext = W5msReadADC(TPex2); // read external voltage 2
#if EXT_NUMERATOR <= (0xffff/U_VCC)
Display_mV(Vext*EXT_NUMERATOR/EXT_DENOMINATOR,3); // Display 3 Digits of this mV units
#else
Display_mV((unsigned long)Vext*EXT_NUMERATOR/EXT_DENOMINATOR,3); // Display 3 Digits of this mV units
#endif
#endif /* TPex2 */
#if defined(POWER_OFF) && defined(BAT_CHECK)
Bat_update(times);
#endif
key_pressed = wait_for_key_ms(1000);
#ifdef POWER_OFF
#ifdef WITH_ROTARY_SWITCH
if ((key_pressed > 0) || (rotary.incre > 0)) times = 0; // reset the loop counter, operator is active
if (rotary.incre > 5) break; // fast rotation ends voltage measurement
#else
if (key_pressed > 0) times = 0; //reset the loop counter, operator is active
#endif
#endif
if (key_pressed > ((1000/10)-6)) {
key_long_pressed++; // count the long key press
}
if (key_pressed == 0) key_long_pressed = 0; //reset the key long pressed counter
if (key_long_pressed > 4) break; // five seconds end the loop
#ifdef POWER_OFF
times = Pwr_mode_check(times); // no time limit with DC_Pwr_mode
#endif
} /* end for times */
#endif /* WITH_VEXT */
} /* end show_vext() */
void GetFrequency(uint8_t range) {
unsigned char taste; // set if key is pressed during measurement
#if PROCESSOR_TYP == 644
unsigned long freq_count; // the counted pulses in 1 second
#endif
unsigned long long ext_period;
unsigned long freq_from_per;
uint8_t ii;
uint8_t mm;
/* range has set the lowest bit to use the 16:1 frequency divider permanently. */
/* The upper bits of range specifies the input selection. */
/* 0 = external input, 2 = channel 2, 4 = HF Quartz, 6 = LF Quartz */
#if PROCESSOR_TYP == 644
FDIV_DDR |= (1<<FDIV_PIN); //switch to output
if ((range & 0x01) == 0) {
FDIV_PORT &= ~(1<<FDIV_PIN); // switch off the 16:1 divider
} else {
FDIV_PORT |= (1<<FDIV_PIN); // use frequency divider for next measurement
}
FINP_DDR |= (1<<FINP_P0) | (1<<FINP_P1); // switch both pins to output
FINP_PORT &= ~(1<<FINP_P0); // clear lower bit of input selection
FINP_PORT &= ~(1<<FINP_P1); // clear higher bit of input selection
if (range == 0) {
message_key_released(FREQ_str); // Frequency: in line 1
} else if (range == 1) {
message_key_released(HFREQ_str); // High Frequency: in line 1
} else if (range < 4) { /* 2+3 */
FINP_PORT |= (1<<FINP_P0); // set lower bit of input selection
FINP_PORT &= ~(1<<FINP_P1); // clear higher bit of input selection
} else if (range < 6) { /* 4+5 */
FINP_PORT &= ~(1<<FINP_P0); // clear lower bit of input selection
FINP_PORT |= (1<<FINP_P1); // set higher bit of input selection
message_key_released(H_CRYSTAL_str); // HF Quarz: in line 1
} else { /* 6+7 */
FINP_PORT |= (1<<FINP_P0); // set lower bit of input selection
FINP_PORT |= (1<<FINP_P1); // set higher bit of input selection
message_key_released(L_CRYSTAL_str); // LF Quarz: in line 1
}
#else
message_key_released(FREQ_str); // Frequency: in line 1
#endif
taste = 0; // reset flag for key pressed
for (mm=0;mm<240;mm++) {
// *************************************************************************
// *********** straight frequency measurement by counting 1 second *********
// *************************************************************************
//set up Counter 0
// Counter 0 is used to count the external signal connected to T0 (PD4 or PB0)
FREQINP_DDR &= ~(1<<FREQINP_PIN); // switch frequency pin to input
wait1ms(); // let capacitor time to load to 2.4V input
#if PROCESSOR_TYP == 1280
TCCR3A = 0; // normal operation, no output
TCNT3 = 0; // set counter 3 to zero
ext_freq.dw = 0; // set external frequency to zero
TIFR3 = (1<<TOV3); // clear OV interrupt of timer 3
TIMSK3 = (1<<TOIE3); // enable OV interrupt of timer 3
#else
TCCR0A = 0; // normal operation, no output
TCNT0 = 0; // set counter to zero
ext_freq.dw = 0; // set external frequency to zero
TIFR0 = (1<<TOV0); // clear OV interrupt of timer 0
TIMSK0 = (1<<TOIE0); // enable OV interrupt of timer 0
#endif
// start counter after starting second counter timer 1
// set up counter 1 to measure one second
TCCR1A = 0; // normal operation
#define CNT1_END_VAL ((F_CPU / 256UL) + 1)
#define CNT1_DIVIDER (1<<CS12)
#if CNT1_END_VAL > 0xffff
#undef CNT1_END_VAL
#undef CNT1_DIVIDER
#define CNT1_END_VAL ((F_CPU / 1024UL) + 1)
#define CNT1_DIVIDER ((1<<CS12) | (1<<CS10))
#if F_CPU != ((F_CPU / 1024UL) * 1024UL)
#warning F_CPU can not be divided by 1024, measured frequency is wrong!
#endif
#else
#if F_CPU != ((F_CPU / 256UL) * 256UL)
#warning F_CPU can not be divided by 256, measured frequency is wrong!
#endif
#endif
OCR1B = CNT1_END_VAL; // set to 1 second (counter 0 is started with 1)
OCR1A = 1; // start counter 0 with first count
TCNT1 = 0; // set counter to zero
GTCCR |= (1<<PSRSYNC); // reset clock precounter
TIFR1 = (1<<OCF1B) | (1<<OCF1A); // clear Output compare match
TIMSK1 = (1<<OCIE1B) | (1<<OCIE1A); // enable the Compare A match and Compare B match interrupt
sei(); // set interrupt enable
TCCR1B = CNT1_DIVIDER; // divide CPU clock by 256, start counter
// both counter are running now, wait for counter 1 reach OCR1A
for (ii=0;ii<50;ii++) {
wait20ms(); // first count of counter 1 (<32us) has started the counter 0
wdt_reset();
if (!(RST_PIN_REG & (1<<RST_PIN))) taste = 1; // user request stop of operation
#if PROCESSOR_TYP == 1280
if (TCCR3B == 0) break; // timer 3 is stopped by interrupt
#else
if (TCCR0B == 0) break; // timer 0 is stopped by interrupt
#endif
}
// one second is counted
#if PROCESSOR_TYP == 1280
TCCR3B = 0; // stop timer 3, if not stopped by timer 1 compare interrupt
ext_freq.w[0] = TCNT3; // add lower 16 bit to get total counts
#else
TCCR0B = 0; // stop timer 0, if not stopped by timer 1 compare interrupt
ext_freq.b[0] = TCNT0; // add lower 8 bit to get total counts
#endif
#if PROCESSOR_TYP == 644
freq_count = ext_freq.dw; // save the frequency counter
#endif
#if (LCD_LINES > 3)
lcd_line3();
lcd_clear_line();
lcd_line4();
lcd_clear_line();
lcd_clear_line2();
#else
lcd_clear(); // clear total display
#endif
lcd_data('f');
lcd_equal(); // lcd_data('=');
#if PROCESSOR_TYP == 644
if ((FDIV_PORT&(1<<FDIV_PIN)) == 0) {
Display_Hz(ext_freq.dw, 7);
} else {
// frequency divider is activ
Display_Hz(ext_freq.dw*FREQ_DIV, 7);
}
#else
Display_Hz(ext_freq.dw, 7);
#endif
#if PROCESSOR_TYP == 644
lcd_space();
if ((FDIV_PORT&(1<<FDIV_PIN)) != 0) {
lcd_data('/'); // Frequency divider is activ
} else {
lcd_space(); // Frequency divider is not activ
}
#endif
FREQINP_DDR &= ~(1<<FREQINP_PIN); // switch frequency pin to input
if (TCCR1B != 0) {
// Exact 1000ms period is only with "end of period" from timer1 interrupt.
// When stopped with the for loop, the time is too long because wait call does not
// respect CPU time used for interrupts and loop itself.
// For this case show ? behind the Hz.
lcd_data('?');
}
TCCR1B = 0; // stop timer 1
TIMSK1 = 0; // disable all timer 1 interrupts
if ((ext_freq.dw < FMAX_PERIOD) && (ext_freq.dw > 0)) {
// *************************************************************************
// ******** Period measurement by counting some periods ********************
// *************************************************************************
pinchange_max = ((10 * (unsigned long)ext_freq.dw) + MHZ_CPU) / MHZ_CPU; // about 10000000 clock tics
pinchange_max += pinchange_max; // * 2 for up and down change
FREQINP_DDR &= ~(1<<FREQINP_PIN); // switch frequency pin to input
wait1ms(); // let capacitor time to load to 2.4V input
#if PROCESSOR_TYP == 1280
TCNT3 = 0; // set counter 3 to zero
ext_freq.dw = 0; // reset counter to zero
TIFR3 = (1<<TOV3); // clear OV interrupt
TIMSK3 = (1<<TOIE3); // enable OV interrupt
// counter 3 ist started with first pin change interrupt
pinchange_count = 0;
EICRB = (0<<ISC61) | (1<<ISC60); // set int6 pin change
EIFR |= (1<<INTF6); // clear interrupt 6 flag
PCMSK_FREQ |= (1<<PCINT_FREQ); // enable int6
#else
TCNT0 = 0; // set counter 0 to zero
ext_freq.dw = 0; // reset counter to zero
TIFR0 = (1<<TOV0); // clear OV interrupt
TIMSK0 = (1<<TOIE0); // enable OV interrupt
// counter 0 ist started with first pin change interrupt
pinchange_count = 0;
PCIFR = (1<<PCI_CLEAR_BIT); // clear Pin Change Status
PCICR |= (1<<PCI_ENABLE_BIT); // enable pin change interrupt
#endif
sei();
PCMSK_FREQ |= (1<<PCINT_FREQ); // monitor PD4 PCINT20 or PB0 PCINT8 pin change
for (ii=0;ii<250;ii++) {
wait20ms();
wdt_reset();
if (!(RST_PIN_REG & (1<<RST_PIN))) taste = 1; // user request stop of operation
if ((PCMSK_FREQ & (1<<PCINT_FREQ)) == 0) break; // monitoring is disabled by interrupt
} /* end for ii */
#if PROCESSOR_TYP == 1280
TCCR3B = 0; // stop counter 3
PCMSK_FREQ &= ~(1<<PCINT_FREQ); // disable int6
ext_freq.w[0] = TCNT3; // add lower 16 bit to get total counts
#else
TCCR0B = 0; // stop counter 0
PCMSK_FREQ &= ~(1<<PCINT_FREQ); // stop monitor PD4 PCINT20 or PB0 PCINT8 pin change
PCICR &= ~(1<<PCI_ENABLE_BIT); // disable the interrupt
ext_freq.b[0] = TCNT0; // add lower 8 bit to get total counts
#endif
// lcd_clear_line2();
// wait50ms(); // let LCD flicker to
#if (LCD_LINES > 3)
lcd_line3(); // use line3 to report the period with 4-line LCD
#else
lcd_line2(); // report period on line 2 of 2-line LCD
#endif
lcd_data('T');
lcd_equal(); // lcd_data('=');
ext_period = ((unsigned long long)ext_freq.dw * (200000/MHZ_CPU)) / pinchange_max;
#if PROCESSOR_TYP == 644
if ((FDIV_PORT&(1<<FDIV_PIN)) != 0) {
// frequency divider is activ, period is measured too long
ext_period = ext_period / FREQ_DIV;
}
#endif
if (pinchange_max > 127) {
DisplayValue(ext_period,-11,'s',7); // show period converted to 0.01ns units
} else {
//prevent overflow of 32-Bit
DisplayValue((unsigned long)(ext_period/100),-9,'s',7); // show period converted to 1ns units
}
if (ii == 250) {
lcd_data('?'); // wait loop has regular finished
} else {
if (ext_period > 249500) {
#if (LCD_LINES > 3)
lcd_line4(); // use line 4 of 4-line LCD to report the computed frequency
#else
lcd_line1(); // overwrite line 1 of 2-line LCD to report the computed frequency
#endif
lcd_data('f');
lcd_equal(); // lcd_data('=');
if (ext_period > 1000000000) {
// frequency in 0.000001Hz (1e11*1e6)/(0.01ns count)
freq_from_per = (unsigned long long)(100000000000000000) / ext_period;
DisplayValue(freq_from_per,-6,'H',7); // display with 0.000001 Hz resolution
} else {
// prevent unsigned long overflow, scale to 0.0001 Hz
// frequency in 0.0001Hz (1e11*1e4)/(0.01ns count)
freq_from_per = (unsigned long long)(1000000000000000) / ext_period;
DisplayValue(freq_from_per,-4,'H',7); // display with 0.0001 Hz resolution
}
lcd_data('z');
FREQINP_DDR &= ~(1<<FREQINP_PIN); // switch frequency pin to input
}
}
} /* end if 1 < ext_freq < FMAX_PERIOD */
#if PROCESSOR_TYP == 644
if ((FDIV_PORT & (1<<FDIV_PIN)) == 0) {
// frequency divider is not activ
if ( ((freq_count >= FMAX_PERIOD) && (freq_count < ((unsigned long)FMAX_PERIOD*FREQ_DIV))) ||
(freq_count > FMAX_INPUT) ){
FDIV_PORT |= (1<<FDIV_PIN); // use frequency divider for next measurement
}
} else {
// frequency divider is activ
if ((freq_count < (FMAX_PERIOD/FREQ_DIV)) && ((range & 0x01) == 0)) {
FDIV_PORT &= ~(1<<FDIV_PIN); // switch off the 16:1 divider
}
}
#endif
// taste += wait_for_key_ms(SHORT_WAIT_TIME/2);
TIMSK0 = 0; // disable all timer 0 interrupts
taste += wait_for_key_ms(2000);
#ifdef WITH_ROTARY_SWITCH
if ((taste != 0) || (rotary.incre > 2)) break;
#else
if (taste != 0) break;
#endif
} /* end for mm */
return;
} // end GetFrequency()
/* ****************************************************************** */
void show_C_ESR() {
uint8_t key_pressed;
message_key_released(C_ESR_str);
#ifdef POWER_OFF
uint8_t times;
for (times=0;times<250;)
#else
while (1) /* wait endless without the POWER_OFF option */
#endif
{
PartFound = PART_NONE;
ReadBigCap(TP3,TP1);
if (PartFound == PART_CAPACITOR) {
#if LCD_LINES > 2
lcd_line2(); // set to line2
#else
lcd_line1(); // set to line1
#endif
lcd_data('C');
lcd_equal(); // lcd_data('=');
DisplayValue(cap.cval_max,cap.cpre_max,'F',3);
lcd_clear_line(); // clear to end of line 1
cap.esr = GetESR(cap.cb,cap.ca);
#if LCD_LINES > 2
lcd_line3(); // use line 3
#else
lcd_line2(); // use line 2
#endif
lcd_MEM_string(&ESR_str[1]);
if (cap.esr < 65530) {
DisplayValue16(cap.esr,-2,LCD_CHAR_OMEGA,2);
} else {
lcd_data('?'); // too big
}
lcd_clear_line(); // clear to end of line
} else { // no cap found
#if LCD_LINES > 2
lcd_clear_line2(); // clear C value
lcd_line3();
lcd_clear_line(); // clear old ESR value
#else
lcd_line1(); //
lcd_MEM2_string(C_ESR_str);
lcd_clear_line();
lcd_clear_line2(); // clear old ESR value
#endif
}
#if defined(POWER_OFF) && defined(BAT_CHECK)
Bat_update(times);
#endif
key_pressed = wait_for_key_ms(1000);
#ifdef WITH_ROTARY_SWITCH
if ((key_pressed != 0) || (rotary.incre > 3)) break;
#else
if (key_pressed != 0) break;
#endif
#ifdef POWER_OFF
times = Pwr_mode_check(times); // no time limit with DC_Pwr_mode
#endif
} /* end for times */
} /* end show_C_ESR() */
void AutoCheck(uint8_t test_mode) {
/* (test_mode & 0x0f) == 0 , only calibration without T1-T7 */
/* (test_mode & 0x0f) == 1 , calibration and additional T1-T7 */
/* (test_mode & 0xf0) == 0 , check for shorted probes, if unshorted, return */
/* (test_mode & 0xf0) == 0x10 , ask for shorted probes */
uint8_t ww; // counter for repeating the tests
int adcmv[7];
#ifdef EXTENDED_TESTS
uint16_t u680; // 3 * (Voltage at 680 Ohm)
uint8_t taste; // ist key pressed? 0 = no
#else
#ifndef NO_TEST_T1_T7
#warning "Selftest without extended tests T1 to T7!"
#endif
#endif
#if defined(EXTENDED_TESTS) || defined(WITH_MENU)
uint8_t tt; // number of running test
#endif
#ifdef FREQUENCY_50HZ
uint8_t ff50; // loop counter for 2s
#endif
// define the maximum count of repetitions MAX_REP
#define MAX_REP 4
#ifdef AUTO_CAL
uint8_t cap_found; // counter for found capacitor
#ifdef AUTOSCALE_ADC
int8_t udiff; // difference between ADC Voltage with VCC or Bandgap reference
int8_t udiff2;
#endif
#endif
PartFound = PART_NONE; // no part found before
if ((test_mode & 0xf0) == 0) {
// probed should be shorted already to begin selftest
if (AllProbesShorted() != 3) return;
lcd_clear();
lcd_MEM_string(SELFTEST); // "Selftest mode.."
lcd_line2();
lcd_data('?'); // wait for key pressed for confirmation
if (wait_for_key_ms(2000) > 10) goto begin_selftest; // key is pressed again
#ifdef WITH_MENU
} else {
// report to user, that probes should be shorted
ww = 0;
for (tt=0;tt<150;tt++) { /* wait about 30 seconds for shorted probes */
lcd_clear();
lcd_MEM2_string(SHORT_PROBES_str); // message "Short probes!" to LCD
if (AllProbesShorted() == 3) {
ww++; // all probes now shorted
} else {
ww = 0; // connection not stable, retry
}
if (ww > 3) break; // connection seems to be stable
lcd_refresh(); // write the pixels to display, ST7920 only
wait_about200ms(); // wait 200ms and try again
} /* end for (tt...) */
if (tt < 150) goto begin_selftest; // is shorted before time limit
goto no_zero_resistance; // skip measuring of the zero resistance
#endif
}
// no key pressed for 2s
lcd_clear();
lcd_MEM_string(VERSION_str); //"Version ..."
return;
begin_selftest:
lcd_line2();
lcd_MEM2_string(R0_str); // "R0="
eeprom_write_byte((uint8_t *)(&EE_ESR_ZEROtab[2]), (uint8_t)0); // clear zero offset
eeprom_write_byte((uint8_t *)(&EE_ESR_ZEROtab[3]), (uint8_t)0); // clear zero offset
eeprom_write_byte((uint8_t *)(&EE_ESR_ZEROtab[1]), (uint8_t)0); // clear zero offset
adcmv[0] = GetESR(TP3, TP1);
adcmv[1] = GetESR(TP3, TP2);
adcmv[2] = GetESR(TP2, TP1);
DisplayValue16(adcmv[0],-2,' ',3);
DisplayValue16(adcmv[1],-2,' ',3);
DisplayValue16(adcmv[2],-2,LCD_CHAR_OMEGA,3);
if (adcmv[0] >= 90) {
adcmv[0] = ESR_ZERO; // set back to default value
}
eeprom_write_byte((uint8_t *)(&EE_ESR_ZEROtab[2]), (uint8_t)adcmv[0]); // fix zero offset
if (adcmv[1] >= 90) {
adcmv[1] = ESR_ZERO; // set back to default value
}
eeprom_write_byte((uint8_t *)(&EE_ESR_ZEROtab[3]), (uint8_t)adcmv[1]); // fix zero offset
if (adcmv[2] >= 90) {
adcmv[2] = ESR_ZERO; // set back to default value
}
eeprom_write_byte((uint8_t *)(&EE_ESR_ZEROtab[1]), (uint8_t)adcmv[2]); // fix zero offset
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
#ifdef WITH_MENU
no_zero_resistance:
#endif
#ifdef EXTENDED_TESTS
#define TEST_COUNT 8
if((test_mode & 0x0f) == 1) { /* full test requested */
for(tt=1;tt<TEST_COUNT;tt++) { // loop for all Tests
for(ww=0;ww<MAX_REP;ww++) { // repeat the test MAX_REP times
lcd_clear_line2(); // clear total line 2
lcd_clear_line1(); // clear total line 1
lcd_data('T'); //output the Testmode "T"
u2lcd(tt); //lcd_string(utoa(tt, outval, 10)); //output Test number
lcd_space();
//############################################
if (tt == 1) { // output of reference voltage and factors for capacity measurement
lcd_MEM2_string(URef_str); //"URef="
Calibrate_UR(); // get Reference voltage, Pin resistance
Display_mV(ref_mv,4);
lcd_line2(); //Cursor to column 1, row 2
lcd_MEM2_string(RHfakt_str); //"RHf="
u2lcd(RHmultip); //lcd_string(utoa(RHmultip, outval, 10));
ADCconfig.Samples = R_ANZ_MESS; // set number of ADC reads near to maximum
}
//############################################
if (tt == 2) { // how equal are the RL resistors?
u680 = ((long)ADCconfig.U_AVCC * (PIN_RM + R_L_VAL) / (PIN_RM + R_L_VAL + R_L_VAL + PIN_RP));
R_PORT = 1<<PIN_RL1; //RL1 to VCC
R_DDR = (1<<PIN_RL1) | (1<<PIN_RL2); //RL2 to -
adcmv[0] = W20msReadADC(TP1);
adcmv[0] -= u680;
R_DDR = (1<<PIN_RL1) | (1<<PIN_RL3); //RL3 to -
adcmv[1] = W20msReadADC(TP1);
adcmv[1] -= u680;
R_PORT = 1<<PIN_RL2; //RL2 to VCC
R_DDR = (1<<PIN_RL2) | (1<<PIN_RL3); //RL3 to -
adcmv[2] = W20msReadADC(TP2);
adcmv[2] -= u680;
lcd_MEM_string(RLRL_str); // "RLRL"
}
//############################################
if (tt == 3) { // how equal are the RH resistors
R_PORT = 1<<PIN_RH1; //RH1 to VCC
R_DDR = (1<<PIN_RH1) | (1<<PIN_RH2); //RH2 to -
adcmv[0] = W20msReadADC(TP1);
adcmv[3] = ADCconfig.U_AVCC / 2;
adcmv[0] -= adcmv[3];
R_DDR = (1<<PIN_RH1) | (1<<PIN_RH3); //RH3 to -
adcmv[1] = W20msReadADC(TP1);
adcmv[1] -= adcmv[3];
R_PORT = 1<<PIN_RH2; //RH2 to VCC
R_DDR = (1<<PIN_RH2) | (1<<PIN_RH3); //RH3 to -
adcmv[2] = W20msReadADC(TP2);
adcmv[2] -= adcmv[3];
lcd_MEM_string(RHRH_str); // "RHRH"
}
//############################################
if (tt == 4) { // Text release probes
lcd_MEM_string(RELPROBE); // "Release Probes"
if (AllProbesShorted() != 0) ww = MAX_REP-2;
}
//############################################
if (tt == 5) { // can we switch the ADC pins to GND across R_H resistor?
R_PORT = 0;
R_DDR = 1<<PIN_RH1; //Pin 1 over R_H to GND
adcmv[0] = W20msReadADC(TP1);
R_DDR = 1<<PIN_RH2; //Pin 2 over R_H to GND
adcmv[1] = W20msReadADC(TP2);
R_DDR = 1<<PIN_RH3; //Pin 3 over R_H to GND
adcmv[2] = W20msReadADC(TP3);
lcd_MEM_string(RH1L_str); // "RH_Lo="
}
//############################################
if (tt == 6) { // can we switch the ADC pins to VCC across the R_H resistor?
R_DDR = 1<<PIN_RH1; //Pin 1 over R_H to VCC
R_PORT = 1<<PIN_RH1;
adcmv[0] = W20msReadADC(TP1) - ADCconfig.U_AVCC;
R_DDR = 1<<PIN_RH2; //Pin 2 over R_H to VCC
R_PORT = 1<<PIN_RH2;
adcmv[1] = W20msReadADC(TP2) - ADCconfig.U_AVCC;
R_DDR = 1<<PIN_RH3; //Pin 3 over R_H to VCC
R_PORT = 1<<PIN_RH3;
adcmv[2] = W20msReadADC(TP3) - ADCconfig.U_AVCC;
lcd_MEM_string(RH1H_str); // "RH_Hi="
}
if (tt == 7) { // is the voltage of all R_H / R_L dividers correct?
u680 = ((long)ADCconfig.U_AVCC * (PIN_RM + R_L_VAL) / (PIN_RM + R_L_VAL + (unsigned long)R_H_VAL*100));
R_PORT = 1<<PIN_RH1; //RH1 to VCC
R_DDR = (1<<PIN_RH1) | (1<<PIN_RL1); //RH1 to +, RL1 to -
adcmv[0] = W20msReadADC(TP1);
adcmv[0] -= u680;
R_PORT = 1<<PIN_RH2; //RH2 to VCC
R_DDR = (1<<PIN_RH2) | (1<<PIN_RL2); //RH2 to +, RL2 to -
adcmv[1] = W20msReadADC(TP2);
adcmv[1] -= u680;
R_PORT = 1<<PIN_RH3; //RH3 to VCC
R_DDR = (1<<PIN_RH3) | (1<<PIN_RL3); //RH3 to +, RL3 to -
adcmv[2] = W20msReadADC(TP3);
adcmv[2] -= u680;
lcd_MEM_string(RHRL_str); // "RH/RL"
}
//############################################
if (tt > 1) { // output 3 voltages
lcd_line2(); //Cursor to column 1, row 2
i2lcd(adcmv[0]); // lcd_string(itoa(adcmv[0], outval, 10)); //output voltage 1
lcd_space();
i2lcd(adcmv[1]); // lcd_string(itoa(adcmv[1], outval, 10)); //output voltage 2
lcd_space();
i2lcd(adcmv[2]); // lcd_string(itoa(adcmv[2], outval, 10)); //output voltage 3
}
ADC_DDR = TXD_MSK; // all-Pins to Input
ADC_PORT = TXD_VAL; // all ADC-Ports to GND
R_DDR = 0; // all R-Ports to Input
R_PORT = 0;
taste = wait_for_key_ms(1000); // wait up to 1 second or key is pressed
if ((tt != 4) && (taste > 10)) {
// don't finish repetition for T4 with pressed key
break; // if key is pressed, don't repeat
}
} //end for ww
wait_for_key_ms(1000); // wait up to 1 second or key is pressed
} //end for tt
#if PROCESSOR_TYP == 1280
lcd_clear();
lcd_testpin(TP1);
lcd_data('L');
lcd_equal(); // lcd_data('=');
ADC_PORT = TXD_VAL;
ADC_DDR = (1<<TP1) | TXD_MSK;
R_PORT = (1<<PIN_RL1);
R_DDR = (1<<PIN_RL1);
adcmv[0] = W5msReadADC(TP1);
ADCSRB = (1<<MUX5); // switch to upper 8 MUX inputs
adcmv[1] = ReadADC(PIN_RL1);
ADCSRB = 0; // switch back to lower 8 MUX inputs
ResistorVal[0] = (adcmv[0] * (unsigned long)R_L_VAL) / (adcmv[1] - adcmv[0]);
DisplayValue(ResistorVal[0],-1,LCD_CHAR_OMEGA,3);
lcd_space();
lcd_data('H');
lcd_equal(); // lcd_data('=');
ResistorVal[1] = ((ADCconfig.U_AVCC - adcmv[1]) * (unsigned long)R_L_VAL) / (adcmv[1] - adcmv[0]);
DisplayValue(ResistorVal[1],-1,LCD_CHAR_OMEGA,3);
lcd_line2();
lcd_testpin(TP1);
lcd_space();
lcd_data('H');
lcd_equal(); // lcd_data('=');
ADC_PORT = (1<<TP1) | TXD_VAL;
R_PORT = 0;
adcmv[0] = W5msReadADC(TP1);
ADCSRB = (1<<MUX5); // switch to upper 8 MUX inputs
adcmv[1] = ReadADC(PIN_RL1);
ADCSRB = 0; // switch back to lower 8 MUX inputs
ResistorVal[1] = ((ADCconfig.U_AVCC - adcmv[0]) * (unsigned long)R_L_VAL) / (adcmv[0] - adcmv[1]);
DisplayValue(ResistorVal[1],-1,LCD_CHAR_OMEGA,3);
lcd_space();
lcd_data('L');
lcd_equal(); // lcd_data('=');
ResistorVal[0] = (adcmv[1] * (unsigned long)R_L_VAL) / (adcmv[0] - adcmv[1]);
DisplayValue(ResistorVal[0],-1,LCD_CHAR_OMEGA,3);
wait_about1s(); // only for mega1280
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
//
lcd_clear();
lcd_testpin(TP2);
lcd_data('L');
lcd_equal(); // lcd_data('=');
ADC_PORT = TXD_VAL;
ADC_DDR = (1<<TP2) | TXD_MSK;
R_PORT = (1<<PIN_RL2);
R_DDR = (1<<PIN_RL2);
adcmv[0] = W5msReadADC(TP2);
ADCSRB = (1<<MUX5); // switch to upper 8 MUX inputs
adcmv[1] = ReadADC(PIN_RL2);
ADCSRB = 0; // switch back to lower 8 MUX inputs
ResistorVal[0] = (adcmv[0] * (unsigned long)R_L_VAL) / (adcmv[1] - adcmv[0]);
DisplayValue(ResistorVal[0],-1,LCD_CHAR_OMEGA,3);
lcd_space();
lcd_data('H');
lcd_equal(); // lcd_data('=');
ResistorVal[1] = ((ADCconfig.U_AVCC - adcmv[1]) * (unsigned long)R_L_VAL) / (adcmv[1] - adcmv[0]);
DisplayValue(ResistorVal[1],-1,LCD_CHAR_OMEGA,3);
lcd_line2();
lcd_testpin(TP2);
lcd_data('H');
lcd_equal(); // lcd_data('=');
ADC_PORT = (1<<TP2) | TXD_VAL;
R_PORT = 0;
adcmv[0] = W5msReadADC(TP2);
ADCSRB = (1<<MUX5); // switch to upper 8 MUX inputs
adcmv[1] = ReadADC(PIN_RL2);
ADCSRB = 0; // switch back to lower 8 MUX inputs
ResistorVal[1] = ((ADCconfig.U_AVCC - adcmv[0]) * (unsigned long)R_L_VAL) / (adcmv[0] - adcmv[1]);
DisplayValue(ResistorVal[1],-1,LCD_CHAR_OMEGA,3);
lcd_space();
lcd_data('L');
lcd_equal(); // lcd_data('=');
ResistorVal[0] = (adcmv[1] * (unsigned long)R_L_VAL) / (adcmv[0] - adcmv[1]);
DisplayValue(ResistorVal[0],-1,LCD_CHAR_OMEGA,3);
wait_about1s(); // only for mega1280
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
//
lcd_clear();
lcd_testpin(TP3);
lcd_data('L');
lcd_equal(); // lcd_data('=');
ADC_DDR = (1<<TP3) | TXD_MSK;
R_PORT = (1<<PIN_RL3);
R_DDR = (1<<PIN_RL3);
adcmv[0] = W5msReadADC(TP3);
ADCSRB = (1<<MUX5); // switch to upper 8 MUX inputs
adcmv[1] = ReadADC(PIN_RL3);
ADCSRB = 0;
ResistorVal[0] = (adcmv[0] * (unsigned long)R_L_VAL) / (adcmv[1] - adcmv[0]);
DisplayValue(ResistorVal[0],-1,LCD_CHAR_OMEGA,3);
lcd_space();
lcd_data('H');
lcd_equal(); // lcd_data('=');
ResistorVal[1] = ((ADCconfig.U_AVCC - adcmv[1]) * (unsigned long)R_L_VAL) / (adcmv[1] - adcmv[0]);
DisplayValue(ResistorVal[1],-1,LCD_CHAR_OMEGA,3);
lcd_line2();
lcd_testpin(TP3);
lcd_data('H');
lcd_equal(); // lcd_data('=');
ADC_PORT = (1<<TP3) | TXD_VAL;
R_PORT = 0;
adcmv[0] = W5msReadADC(TP3);
ADCSRB = (1<<MUX5); // switch to upper 8 MUX inputs
adcmv[1] = ReadADC(PIN_RL3);
ADCSRB = 0; // switch back to lower 8 MUX inputs
ResistorVal[1] = ((ADCconfig.U_AVCC - adcmv[0]) * (unsigned long)R_L_VAL) / (adcmv[0] - adcmv[1]);
DisplayValue(ResistorVal[1],-1,LCD_CHAR_OMEGA,3);
lcd_space();
lcd_data('L');
lcd_equal(); // lcd_data('=');
ResistorVal[0] = (adcmv[1] * (unsigned long)R_L_VAL) / (adcmv[0] - adcmv[1]);
DisplayValue(ResistorVal[0],-1,LCD_CHAR_OMEGA,3);
wait_about1s(); // only for mega1280
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
#endif /* PROCESSOR_TYP == 1280 */
} /* end if((test_mode & 0x0f) == 1) */
#endif /* end EXTENDED_TESTS */
for (ww=0;ww<120;ww++) {
// wait up to 1 minute for releasing the probes
if (AllProbesShorted() == 0) break;
lcd_clear_line2(); // clear total line2
lcd_MEM_string(RELPROBE); // "Release Probes"
lcd_refresh(); // write the pixels to display, ST7920 only
wait_about500ms();
}
lcd_clear();
lcd_MEM_string(RIHI_str); // "RiHi="
DisplayValue16(RRpinPL,-1,LCD_CHAR_OMEGA,3);
lcd_line2();
lcd_MEM_string(RILO_str); // "RiLo="
DisplayValue16(RRpinMI,-1,LCD_CHAR_OMEGA,3);
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
//measure Zero offset for Capacity measurement
PartFound = PART_NONE;
lcd_clear();
lcd_MEM_string(C0_str); //output "C0 "
ReadCapacity(TP3, TP1);
adcmv[5] = (unsigned int) cap.cval_uncorrected.dw; //save capacity value of empty Pin 1:3
ReadCapacity(TP3, TP2);
adcmv[6] = (unsigned int) cap.cval_uncorrected.dw; //save capacity value of empty Pin 2:3
ReadCapacity(TP2, TP1);
adcmv[2] = (unsigned int) cap.cval_uncorrected.dw; //save capacity value of empty Pin 1:2
ReadCapacity(TP1, TP3);
adcmv[1] = (unsigned int) cap.cval_uncorrected.dw; //save capacity value of empty Pin 3:1
ReadCapacity(TP2, TP3);
adcmv[4] = (unsigned int) cap.cval_uncorrected.dw; //save capacity value of empty Pin 3:2
ReadCapacity(TP1, TP2);
adcmv[0] = (unsigned int) cap.cval_uncorrected.dw; //save capacity value of empty Pin 2:1
#ifdef WITH_MENU
if (((test_mode & 0x0f) == 1) || (UnCalibrated == 2))
#else
if (UnCalibrated == 2)
#endif
{
adcmv[3] = adcmv[0] + 2; // mark as uncalibrated until Cap > 100nF has success
} else {
adcmv[3] = adcmv[0]; // mark as calibrated, short calibration is finished
UnCalibrated = 0; // clear the UnCalibrated Flag
lcd_cursor_off(); // switch cursor off
}
u2lcd_space(adcmv[5]); //DisplayValue(adcmv[5],0,' ',3); //output cap0 1:3
u2lcd_space(adcmv[6]); //DisplayValue(adcmv[6],0,' ',3); //output cap0 2:3
DisplayValue(adcmv[2],-12,'F',3); //output cap0 1:2
#ifdef AUTO_CAL
for (ww=0;ww<7;ww++) { //checking loop
if ((adcmv[ww] > 190) || (adcmv[ww] < 10)) goto no_c0save;
}
for (ww=0;ww<7;ww++) {
// write all zero offsets to the EEprom
(void) eeprom_write_byte((uint8_t *)(&c_zero_tab[ww]),adcmv[ww]+(COMP_SLEW1 / (CC0 + CABLE_CAP + COMP_SLEW2)));
}
lcd_line2();
lcd_MEM_string(OK_str); // output "OK"
no_c0save:
#endif
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
#ifdef SamplingADC
sampling_cap_calibrate(); // measure zero capacity for samplingADC
#endif
#ifdef AUTO_CAL
#ifdef WITH_MENU
if (((test_mode & 0x0f) == 1) || (UnCalibrated == 2))
#endif
// without menu function the capacitor is requested every time,
// because there is no way to request recaltbration again
// With menu function the capacitor is only requested for first time
// calibration (UnCalibrated = 2) or for the full selftest call (test_mode = 1)
// of the menu function, not with the automatically call (test_mode = 1).
{
// for full test or first time calibration, use external capacitor
// Message C > 100nF at TP1 and TP3
cap_found = 0;
for (ww=0;ww<64;ww++) {
init_parts();
#if (TPCAP >= 0)
CalibrationCap(); // measure with internal calibration capacitor
#else
lcd_clear();
lcd_testpin(TP1);
lcd_MEM_string(CapZeich); // "-||-"
lcd_testpin(TP3);
lcd_MEM2_string(MinCap_str); // " >100nF!"
PartFound = PART_NONE;
ReadCapacity(TP3, TP1); // look for capacitor > 100nF
#endif
while (cap.cpre < -9) {
cap.cpre++;
cap.cval /= 10;
}
if ((cap.cpre == -9) && (cap.cval > 95) && (cap.cval < 22000) &&
(load_diff > -150) && (load_diff < 150)) {
cap_found++;
} else {
cap_found = 0; // wait for stable connection
}
if (cap_found > 4) {
// value of capacitor is correct
(void) eeprom_write_word((uint16_t *)(&ref_offset), load_diff); // hold zero offset + slew rate dependend offset
lcd_clear();
lcd_MEM2_string(REF_C_str); // "REF_C="
i2lcd(load_diff); // lcd_string(itoa(load_diff, outval, 10)); //output REF_C_KORR
RefVoltage(); // new ref_mv_offs and RHmultip
#if 0
//#######################################
// Test for switching level of the digital input of port TP3
for (tt=0;tt<8;tt++) {
ADC_PORT = TXD_VAL; //ADC-Port 1 to GND
ADC_DDR = 1<<TP1 | TXD_MSK; //ADC-Pin 1 to output 0V
R_PORT = 1<<PIN_RH3; //Pin 3 over R_H to VCC
R_DDR = 1<<PIN_RH3; //Pin 3 over R_H to VCC
while (1) {
wdt_reset();
if ((ADC_PIN&(1<<TP3)) == (1<<TP3)) break;
}
R_DDR = 0; //Pin 3 without current
R_PORT = 0;
adcmv[0] = ReadADC(TP3);
lcd_line3();
Display_mV(adcmv[0],4);
R_DDR = 1<<PIN_RH3; //Pin 3 over R_H to GND
while (1) {
wdt_reset();
if ((ADC_PIN&(1<<TP3)) != (1<<TP3)) break;
}
R_DDR = 0; //Pin 3 without current
lcd_line4();
adcmv[0] = ReadADC(TP3);
Display_mV(adcmv[0],4);
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
}
//#######################################
#endif
#ifdef AUTOSCALE_ADC
#if (TPCAP >= 0)
#define CAP_ADC TPCAP /* Cap >100nF is integrated at TPCAP */
TCAP_PORT &= ~(1<<TCAP_RH); // 470k resistor to GND
TCAP_DDR |= (1<<TCAP_RH); // enable output
#else
#define CAP_ADC TP3 /* Cap >100nF at TP3 */
ADC_PORT = TXD_VAL; //ADC-Port 1 to GND
ADC_DDR = 1<<TP1 | TXD_MSK; //ADC-Pin 1 to output 0V
R_DDR = 1<<PIN_RH3; //Pin 3 over R_H to GND
#endif
do {
adcmv[0] = ReadADC(CAP_ADC);
} while (adcmv[0] > 980);
#if (TPCAP >= 0)
TCAP_DDR &= ~(1<<TCAP_RH); // 470k resistor port to input mode
#else
R_DDR = 0; //all Pins to input
#endif
ADCconfig.U_Bandgap = 0; // do not use internal Ref
adcmv[0] = ReadADC(CAP_ADC); // get cap voltage with VCC reference
ADCconfig.U_Bandgap = adc_internal_reference;
adcmv[1] = ReadADC(CAP_ADC); // get cap voltage with internal reference
adcmv[1] += adcmv[1]; // double the value
ADCconfig.U_Bandgap = 0; // do not use internal Ref
adcmv[2] = ReadADC(CAP_ADC); // get cap voltage with VCC reference
ADCconfig.U_Bandgap = adc_internal_reference;
udiff = (int8_t)(((signed long)(adcmv[0] + adcmv[2] - adcmv[1])) * adc_internal_reference / adcmv[1])+REF_R_KORR;
lcd_line2();
lcd_MEM2_string(REF_R_str); // "REF_R="
udiff2 = udiff + (int8_t)eeprom_read_byte((uint8_t *)(&RefDiff));
(void) eeprom_write_byte((uint8_t *)(&RefDiff), (uint8_t)udiff2); // hold offset for true reference Voltage
i2lcd(udiff2); // output correction voltage
RefVoltage(); // set new ADCconfig.U_Bandgap
#endif /* end AUTOSCALE_ADC */
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
UnCalibrated = 0; // clear the UnCalibrated Flag
lcd_cursor_off(); // switch cursor off
cap_found = eeprom_read_byte((uint8_t *)&c_zero_tab[0]); // read first capacity zero offset
eeprom_write_byte((uint8_t *)&c_zero_tab[3], cap_found); // mark as calibrated permanent
break; // leave the ww for loop
} /* end if (cap_found > 4) */
lcd_line2();
DisplayValue(cap.cval,cap.cpre,'F',4);
lcd_refresh(); // write the pixels to display, ST7920 only
wait_about200ms(); // wait additional time
} // end for ww
} /* end if((test_mode & 0x0f) == 1) */
#endif /* end AUTO_CAL */
ADCconfig.Samples = ANZ_MESS; // set to configured number of ADC samples
#ifdef SamplingADC
sampling_lc_calibrate(); // Cap for L-meas
#endif
#ifdef FREQUENCY_50HZ
//#define TEST_SLEEP_MODE /* only select for checking the sleep delay */
lcd_clear();
lcd_MEM_string(T50HZ); //" 50Hz"
lcd_refresh(); // write the pixels to display, ST7920 only
ADC_PORT = TXD_VAL;
ADC_DDR = 1<<TP1 | TXD_MSK; // Pin 1 to GND
R_DDR = (1<<PIN_RL3) | (1<<PIN_RL2);
for(ww=0;ww<30;ww++) { // repeat the signal up to 30 times (1 minute)
for (ff50=0;ff50<100;ff50++) { // for 2 s generate 50 Hz
R_PORT = (1<<PIN_RL2); // Pin 2 over R_L to VCC, Pin 3 over R_L to GND
#ifdef TEST_SLEEP_MODE
sleep_5ms(2); // test of timing of sleep mode call
#else
wait10ms(); // normal delay
#endif
R_PORT = (1<<PIN_RL3); // Pin 3 over R_L to VCC, Pin 2 over R_L to GND
#ifdef TEST_SLEEP_MODE
sleep_5ms(2); // test of timing of sleep mode call
#else
wait10ms(); // normal delay
#endif
wdt_reset();
} /* end for ff50 */
if (!(RST_PIN_REG & (1<<RST_PIN))) {
// if key is pressed, don't repeat
break;
}
} /* end for ww */
#endif /* end FREQUENCY_50HZ */
lcd_clear();
lcd_MEM_string(VERSION_str); //"Version ..."
lcd_line2();
lcd_MEM_string(ATE); //"Selftest End"
PartFound = PART_NONE;
last_line_used = 2;
wait_for_key_5s_line2(); // wait up to 5 seconds and clear line 2
} /* end AutoCheck */
