From 1a86e789841b2afd3f6dd4340399d91e7832cc7f Mon Sep 17 00:00:00 2001
From: hugogogo <hugogogo@protonmail.com>
Date: Tue, 4 Mar 2025 13:26:57 +0100
Subject: [PATCH] added macro modes input and output

---
 module00/ex02/Makefile |  2 +-
 module00/ex02/main.c   | 30 ++++++------------------------
 2 files changed, 7 insertions(+), 25 deletions(-)

diff --git a/module00/ex02/Makefile b/module00/ex02/Makefile
index 40e9cb4..56b54a5 100644
--- a/module00/ex02/Makefile
+++ b/module00/ex02/Makefile
@@ -19,7 +19,7 @@ hex: $(TARGET).hex
 
 # https://gcc.gnu.org/onlinedocs/gcc/AVR-Options.html
 $(TARGET).bin: $(TARGET).c
-	$(CC) -mmcu=$(AVRGCC_MCU_TYPE) -D F_CPU=$(F_CPU) $(TARGET).c -o $(TARGET).bin
+	$(CC) -mmcu=$(AVRGCC_MCU_TYPE) -D F_CPU=$(F_CPU) $(TARGET).c -Os -o $(TARGET).bin
 
 
 # https://linux.die.net/man/1/avr-objcopy
diff --git a/module00/ex02/main.c b/module00/ex02/main.c
index fe04856..a036784 100644
--- a/module00/ex02/main.c
+++ b/module00/ex02/main.c
@@ -1,10 +1,14 @@
 #include <avr/io.h>
+#include <util/delay.h>
 
 #define SET(REGISTER, BIT)		REGISTER |= 1 << BIT
 #define CLEAR(REGISTER, BIT)	REGISTER &= ~(1 << BIT)
 #define TEST(REGISTER, BIT)		REGISTER & 1 << BIT
 #define TOGGLE(REGISTER, BIT)	REGISTER ^= 1 << BIT
 
+#define MODE_INPUT(BIT)		CLEAR(DDRB, BIT)
+#define MODE_OUTPUT(BIT)	SET(DDRB, BIT)
+
 #define D1 0
 #define D2 1
 #define D3 2
@@ -12,30 +16,8 @@
 
 int main()
 {
-    // DDRx : select direction of the pin
-    //      - 1 = output (pull-up off)
-    //      - 0 = input
-    // PORTx :
-    //      if DDRx = 1 (output mode) :
-    //      - 1 = HIGH (5V)
-    //      - 0 = LOW (0V)
-    //      if DDRx = 0 (input mode) : 
-    //      - 1 = pull-up on
-    //      - 0 = pull-up off
-    // PINx : 
-
-
-    SET(DDRB, D1);		// make PB0 as OUTPUT (pullup is off)
-    CLEAR(PORTB, D1);	// make PB0 as HIGH (LED turns ON)
-
-    // SET(DDRB, D2);		// make PB1 as OUTPUT (pullup is off)
-    // CLEAR(PORTB, D2);	// make PB1 as LOW (LED turns OFF)
-
-    // CLEAR(DDRB, D3);		// make PB2 as INPUT
-    // SET(PORTB, D3);		// make PB2 pullup on
-
-    // CLEAR(DDRB, D4);		// make PB4 as INPUT
-    // CLEAR(PORTB, D4);	// make PB4 pullup off
+    MODE_OUTPUT(D1);
+    SET(PORTB, D1);
 
     return 0;
 }
\ No newline at end of file