/**
* \brief Initialize and enable the A/D converter
*
* Available on all ATmegas.
*/
static inline void
initialize(Reference referenceVoltage,
Prescaler prescaler)
{
setReferenceVoltage(referenceVoltage);
setPrescaler(prescaler);
setEnableAdc(true);
}
void main ()
{
int rc;
unsigned long next_wake_utt;
unsigned long delta_wake_utt;
vBSP430platformInitialize_ni();
(void)iBSP430consoleInitialize();
cprintf("\n\nadc demo, " __DATE__ " " __TIME__ "\n");
delta_wake_utt = 2 * ulBSP430uptimeConversionFrequency_Hz();
rc = initializeADC();
cprintf("%s initialized, returned %d, ADC cal at %p, REF cal at %p\n",
#if defined(__MSP430_HAS_ADC10__)
"ADC10"
#elif defined(__MSP430_HAS_ADC10_A__)
"ADC10_A"
#elif defined(__MSP430_HAS_ADC10_B__)
"ADC10_B"
#elif defined(__MSP430_HAS_ADC10_B4__)
"ADC10_B (FR4xx)"
#elif defined(__MSP430_HAS_ADC12__)
"ADC12"
#elif defined(__MSP430_HAS_ADC12_B__)
"ADC12_B"
#elif defined(__MSP430_HAS_ADC12_PLUS__)
"ADC12_PLUS"
#endif /* ADC */
, rc, cal_adc, cal_ref);
#if HAVE_REF
if (cal_ref) {
cprintf("Reference factors:\n"
"\t" REF_1pX_STR "V %u (0x%04x)\n"
"\t2.0V %u (0x%04x)\n"
"\t2.5V %u (0x%04x)\n",
cal_ref->cal_adc_15vref_factor, cal_ref->cal_adc_15vref_factor,
cal_ref->cal_adc_20vref_factor, cal_ref->cal_adc_20vref_factor,
cal_ref->cal_adc_25vref_factor, cal_ref->cal_adc_25vref_factor);
}
#endif /* HAVE_REF */
if (cal_adc) {
cprintf("ADC gain factor %d (0x%04x), offset %d\n",
cal_adc->cal_adc_gain_factor, cal_adc->cal_adc_gain_factor,
cal_adc->cal_adc_offset);
cprintf("Temperature ranges:\n");
cprintf("\t" REF_1pX_STR "V T30 %u T85 %u\n", cal_adc->cal_adc_15t30, cal_adc->cal_adc_15t85);
#if BSP430_TLV_IS_5XX
cprintf("\t2.0V T30 %u T85 %u\n", cal_adc->cal_adc_20t30, cal_adc->cal_adc_20t85);
#endif /* BSP430_TLV_IS_5XX */
cprintf("\t2.5V T30 %u T85 %u\n", cal_adc->cal_adc_25t30, cal_adc->cal_adc_25t85);
}
cprintf("Vmid channel %u, Temp channel %u"
#ifdef INCH_AUX
", Aux channel %u"
#endif /* INCH_AUX */
"\n",
INCH_VMID / INCH_BASE, INCH_TEMP / INCH_BASE
#ifdef INCH_AUX
, INCH_AUX / INCH_BASE
#endif /* INCH_AUX */
);
next_wake_utt = ulBSP430uptime_ni();
while (1) {
char timestamp[BSP430_UPTIME_AS_TEXT_LENGTH];
static const int refv[] = { REF_1pX, REF_2p0, REF_2p5 };
static const char * const refv_str[] = { REF_1pX_STR, "2.0", "2.5" };
static const int const nrefv = sizeof(refv)/sizeof(*refv);
static const int inch[] = { INCH_TEMP,
INCH_VMID,
#if defined(INCH_AUX)
INCH_AUX,
#endif /* INCH_AUX */
};
static const int const ninch = sizeof(inch)/sizeof(*inch);
int valid = 0;
sSample sample[sizeof(refv)/sizeof(*refv)][sizeof(inch)/sizeof(*inch)];
int ri;
int ii;
#define VALID(_ri,_ii) ((1 << (_ii)) << ((_ri) * nrefv))
#define ANY_VALID(_ri) (((1 << nrefv)-1) << ((_ri) * nrefv))
for (ri = 0; ri < nrefv; ++ri) {
if (0 == setReferenceVoltage(refv[ri])) {
for (ii = 0; ii < ninch; ++ii) {
if (0 == getSample(sample[ri]+ii, refv[ri], inch[ii])) {
valid |= VALID(ri, ii);
}
}
}
}
cprintf("%s: valid %x", xBSP430uptimeAsText(ulBSP430uptime_ni(), timestamp), valid);
for (ri = 0; ri < nrefv; ++ri) {
if (valid & ANY_VALID(ri)) {
cprintf("\n\t%sV: ", refv_str[ri]);
for (ii = 0; ii < ninch; ++ii) {
if (VALID(ri, ii) & valid) {
if (INCH_TEMP == inch[ii]) {
displayTemperature(sample[ri] + ii);
} else if (INCH_VMID == inch[ii]) {
displayVmid(sample[ri] + ii);
} else {
displayVoltage(sample[ri] + ii);
}
}
}
}
}
cputchar('\n');
next_wake_utt += delta_wake_utt;
while (0 < lBSP430uptimeSleepUntil(next_wake_utt, LPM3_bits)) {
/* nop */
}
}
}