From f99860f16348c1622450bb81db26a14ceb795a87 Mon Sep 17 00:00:00 2001
From: Robin Krens <robin@robinkrens.nl>
Date: Fri, 20 May 2022 15:06:59 +0200
Subject: [PATCH] hbc: internal vref + switch off interrupts after detect
---
hbc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/hbc.c b/hbc.c
index c5c2c0d..38332a1 100644
--- a/hbc.c
+++ b/hbc.c
@@ -13,6 +13,7 @@ ISR(SIG_COMPARATOR)
{
if (ACSR & (1 << ACO)) {
PORTB |= (1 << PB4);
+ ACSR &= ~(1 << ACIE);
} else {
PORTB &= ~(1 << PB4);
}
@@ -22,7 +23,6 @@ EMPTY_INTERRUPT(TIM0_COMPA_vect);
static void switch_idle(void)
{
- sei();
set_sleep_mode(SLEEP_MODE_IDLE);
sleep_mode();
}
@@ -55,7 +55,7 @@ static void config_comparator(void)
//ADMUX |= (1 << MUX0); /* ADC1 as negative input */
ACSR &= ~(1 << ACD); /* enable comparator */
- //ACSR |= (1 << ACBG);
+ ACSR |= (1 << ACBG);
//ACSR |= (1 << ACIS1) | (1 << ACIS0);
DIDR0 |= (1 << AIN1D) | (1 << AIN0D);
@@ -74,6 +74,7 @@ int main(void)
//set_ref_voltage();
config_comparator();
sei();
+ switch_idle();
while(1) {
_delay_ms(100);
--
2.7.4