uc: enable support for sampling both ADC0 and ADC1
This commit is contained in:
Bart Van Der Meerssche
parent
9f0852e5bb
commit
3dead16060
68
uc/main.c
68
uc/main.c
|
|
@ -41,45 +41,60 @@ volatile struct state aux[4] = {{false, false, START, 0}, {false, false, START,
|
|||
volatile struct sensor EEMEM EEPROM_measurements[4] = {{SENSOR0, START}, {SENSOR1, START}, {SENSOR2, START}, {SENSOR3, START}};
|
||||
volatile struct sensor measurements[4];
|
||||
|
||||
uint8_t muxn = 0;
|
||||
|
||||
// interrupt service routine for INT0
|
||||
ISR(INT0_vect) {
|
||||
measurements[1].value++;
|
||||
aux[1].pulse = true;
|
||||
}
|
||||
|
||||
// interrupt service routine for INT1
|
||||
ISR(INT1_vect) {
|
||||
measurements[2].value++;
|
||||
aux[2].pulse = true;
|
||||
}
|
||||
|
||||
// interrupt service routine for PCI2 (PCINT20)
|
||||
ISR(PCINT2_vect) {
|
||||
if (aux[3].toggle == false) {
|
||||
aux[3].toggle = true;
|
||||
}
|
||||
else {
|
||||
// interrupt service routine for INT1
|
||||
ISR(INT1_vect) {
|
||||
measurements[3].value++;
|
||||
aux[3].pulse = true;
|
||||
aux[3].toggle = false;
|
||||
}
|
||||
|
||||
// interrupt service routine for PCI2 (PCINT20)
|
||||
/**
|
||||
ISR(PCINT2_vect) {
|
||||
if (aux[4].toggle == false) {
|
||||
aux[4].toggle = true;
|
||||
}
|
||||
else {
|
||||
measurements[4].value++;
|
||||
aux[4].pulse = true;
|
||||
aux[4].toggle = false;
|
||||
}
|
||||
}
|
||||
**/
|
||||
|
||||
// interrupt service routine for ADC
|
||||
ISR(TIMER2_OVF_vect) {
|
||||
// read ADC result
|
||||
// add to nano(Wh) counter
|
||||
MacU16X16to32(aux[0].nano, METERCONST, ADC);
|
||||
if (muxn < 2) {
|
||||
MacU16X16to32(aux[muxn].nano, METERCONST, ADC);
|
||||
|
||||
if (aux[0].nano > 1000000000) {
|
||||
measurements[0].value++;
|
||||
aux[0].pulse = true;
|
||||
aux[0].nano -= 1000000000;
|
||||
aux[0].debug = ADC;
|
||||
if (aux[muxn].nano > 1000000000) {
|
||||
measurements[muxn].value++;
|
||||
aux[muxn].pulse = true;
|
||||
aux[muxn].nano -= 1000000000;
|
||||
aux[muxn].debug = ADC;
|
||||
}
|
||||
}
|
||||
|
||||
// rotate amongst the available ADC input channels (0 to 7)
|
||||
muxn = ++muxn & 0x7;
|
||||
|
||||
// but only use ADC0 and 1
|
||||
if (muxn < 2) {
|
||||
ADMUX &= 0xF8;
|
||||
ADMUX |= muxn;
|
||||
|
||||
// start a new ADC conversion
|
||||
ADCSRA |= (1<<ADSC);
|
||||
}
|
||||
}
|
||||
|
||||
// interrupt service routine for analog comparator
|
||||
|
|
@ -189,8 +204,8 @@ void setup()
|
|||
ACSR |= (1<<ACBG) | (1<<ACIE) | (1<<ACIS1) | (1<<ACIS0);
|
||||
|
||||
// Timer2 normal operation
|
||||
// Timer2 clock prescaler set to 8 => fTOV2 = 1000kHz / 256 / 8 = 488.28Hz (DS p.158)
|
||||
TCCR2B |= (1<<CS21);
|
||||
// Timer2 clock prescaler set to 1 => fTOV2 = 1000kHz / 256 / 1 = 3906.24Hz (DS p.158)
|
||||
TCCR2B |= (1<<CS20);
|
||||
TIMSK2 |= (1<<TOIE2);
|
||||
|
||||
// disable digital input cicuitry on ADCx pins to reduce leakage current
|
||||
|
|
@ -198,11 +213,8 @@ void setup()
|
|||
|
||||
// select VBG as reference for ADC
|
||||
ADMUX |= (1<<REFS1) | (1<<REFS0);
|
||||
// ADCn selected via main.h
|
||||
ADMUX |= MUXN;
|
||||
// ADC prescaler set to 8 => 1000kHz / 8 = 125kHz (DS p.258)
|
||||
ADCSRA |= (1<<ADPS1) | (1<<ADPS0);
|
||||
|
||||
// enable ADC and start a first ADC conversion
|
||||
ADCSRA |= (1<<ADEN) | (1<<ADSC);
|
||||
|
||||
|
|
@ -243,10 +255,12 @@ void loop()
|
|||
// check whether we have to send out a pls to the deamon
|
||||
for (i=0; i<4; i++) {
|
||||
if (aux[i].pulse == true) {
|
||||
if (i == 0) {
|
||||
if (i < 2) {
|
||||
//debugging
|
||||
printString("msg ADC sample value: ");
|
||||
printIntegerInBase((unsigned long)aux[0].debug, 10);
|
||||
printString("msg ADC");
|
||||
printInteger((long)i);
|
||||
printString(" sample value: ");
|
||||
printIntegerInBase((unsigned long)aux[i].debug, 10);
|
||||
printString("\n");
|
||||
}
|
||||
send((const struct sensor *)&measurements[i]);
|
||||
|
|
|
|||
12
uc/main.h
12
uc/main.h
|
|
@ -43,32 +43,32 @@
|
|||
#ifndef METERCONST
|
||||
#if TYPE == 2201 // 220V - 1-phase @ 488.28Hz sampling rate
|
||||
#define METERCONST 6783
|
||||
#define MUXN 0
|
||||
// #define MUXN 0
|
||||
#warning "220V - 1-phase selected. METERCONST set to 6783"
|
||||
|
||||
#elif TYPE == 2203 // 220V - 3-phase @ 488.28Hz sampling rate
|
||||
#define METERCONST 6721
|
||||
#define MUXN 1
|
||||
// #define MUXN 1
|
||||
#warning "220V - 3-phase selected. METERCONST set to 6721"
|
||||
|
||||
#elif TYPE == 2301 // 230V - 1-phase @ 488.28Hz sampling rate
|
||||
#define METERCONST 7091
|
||||
#define MUXN 0
|
||||
// #define MUXN 0
|
||||
#warning "230V - 1-phase selected. METERCONST set to 7091"
|
||||
|
||||
#elif TYPE == 2303 // 230V - 3-phase @ 488.28Hz sampling rate
|
||||
#define METERCONST 7026
|
||||
#define MUXN 1
|
||||
// #define MUXN 1
|
||||
#warning "230V - 3-phase selected. METERCONST set to 7026"
|
||||
|
||||
#elif TYPE == 2401 // 240V - 1-phase @ 488.28Hz sampling rate
|
||||
#define METERCONST 7399
|
||||
#define MUXN 0
|
||||
// #define MUXN 0
|
||||
#warning "240V - 1-phase selected. METERCONST set to 7399"
|
||||
|
||||
#elif TYPE == 2403 // 240V - 3-phase @ 488.28Hz sampling rate
|
||||
#define METERCONST 7331
|
||||
#define MUXN 1
|
||||
// #define MUXN 1
|
||||
#warning "240V - 3-phase selected. METERCONST set to 7331"
|
||||
#endif
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in New Issue