diff options
Diffstat (limited to 'usb-i2c-sl018/heartbeat.c')
| -rw-r--r-- | usb-i2c-sl018/heartbeat.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/usb-i2c-sl018/heartbeat.c b/usb-i2c-sl018/heartbeat.c index fd7f11a..47caffc 100644 --- a/usb-i2c-sl018/heartbeat.c +++ b/usb-i2c-sl018/heartbeat.c @@ -32,6 +32,10 @@ uint8_t heartbeat_cnt = 0; uint8_t heartbeat_flag; +#define FASTBEAT_PORT PORTD +#define FASTBEAT_DDR DDRD +#define FASTBEAT_BIT 5 + // while running this gets called every ~10ms ISR(TIMER0_COMPA_vect) { @@ -55,10 +59,14 @@ void init_heartbeat(void) OCR0A = 155; // (1+155)*1024 = 159744 -> ~10 ms @ 16 MHz TCNT2 = 0; TIMSK0 = 1<<OCIE0A; + + FASTBEAT_DDR |= 1<<FASTBEAT_BIT; } void heartbeat_task(void) { + FASTBEAT_PORT ^= 1<<FASTBEAT_BIT; + if(heartbeat_flag) led_on(); else |