42/42_EXT_03_42chips
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first version with delay

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This commit is contained in:
hugogogo
2025-03-05 14:11:45 +01:00
parent e96a0c1cda
commit bcff11785c
1 changed files with 18 additions and 2 deletions
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20
module01/ex00/main.c
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@@ -1,6 +1,10 @@
#include <avr/io.h>
#include <util/delay.h>
// #define FIRST_LETTER_IMPL(x) #x[0]
// #define FIRST_LETTER(x) FIRST_LETTER_IMPL(x)
// #define PORT_LETTER(PIN) FIRST_LETTER(PIN)
#define SET(REGISTER, BIT) REGISTER |= 1 << BIT
#define CLEAR(REGISTER, BIT) REGISTER &= ~(1 << BIT)
#define TEST(REGISTER, BIT) REGISTER & 1 << BIT
@@ -12,6 +16,9 @@
#define MODE_OUTPUT(PORT, BIT) SET(DDR ## PORT, BIT)
#define IS_PIN_SET(PORT, BIT) (TEST_PIN(PORT, BIT)) == 0
#define IS_PIN_CLEAR(PORT, BIT) (TEST_PIN(PORT, BIT)) == 1
#define TURN_ON(_PORT, BIT) SET(PORT ## _PORT, BIT)
#define TURN_OFF(_PORT, BIT) CLEAR(PORT ## _PORT, BIT)
#define D1 0
#define D2 1
@@ -20,7 +27,16 @@
#define SW1 2
#define SW2 4
#define TIME 500
#define LED1 B0
int main() {
MODE_OUTPUT(B, D1);
SET(PORTB, D1);
MODE_OUTPUT(B, D2);
TURN_OFF(B, D2);
while(1) {
TOGGLE_PIN(B, D2);
_delay_ms(TIME);
}
}