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chore(comments/format): commented and formatted all the c files

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Maix0 2026-04-14 09:56:31 +02:00
parent f52ce027a6
commit dbcc449552
5 changed files with 157 additions and 72 deletions
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28
ex02/main.c
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@ -7,15 +7,23 @@
#define BTN_PORT PIND2
int main(void) {
// set pin to output
DDRB |= (_BV(LED_PORT));
// set pin to output
// DDRB is the register that set the direction of the pins (IN/OUT)
// we want to say that the LED_PORT pin is an OUT pin, which isnt the default
DDRB |= (_BV(LED_PORT));
while (true) {
bool cur = (PIND & _BV(BTN_PORT));
if (!cur)
PORTB |= (_BV(LED_PORT));
else
PORTB &= ~(_BV(LED_PORT));
_delay_ms(20.f);
}
while (true) {
// to read the pin value (IN pin), we read from the PINX register, and
// select the correct bit. Here the correct bit is the 1 << BTN_PORT1
bool cur = (PIND & _BV(BTN_PORT));
// depending on if the pin is set, we turn on or off the led
if (!cur)
PORTB |= (_BV(LED_PORT)); // on
else
PORTB &= ~(_BV(LED_PORT)); // off
// lets wait a bit before going again
_delay_ms(20.f);
}
}