Finished counter + digit display

2 files changed, 11 insertions, 37 deletions

diff --git a/.gitignore b/.gitignore
index b02bdb5..a61f635 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,4 @@
-.pio
 .clang_complete
-.gcc-flags.json
 .ccls
-.cache/
-compile_commands.json
-compiler_defines.h
 a.out
 out/
diff --git a/src/main.c b/src/main.c
index a7e2646..540f14c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,50 +1,29 @@
 #include <avr/io.h>
 #include <util/delay.h>
 
-// gfedcba
+// a b c d e f g decimal
+// Reversed because a-g is mapped to pa0-6. (pa7 is decimal)
+// Complemented because display is common anode
 const long digits[] = {
-    0b0111111, 0b0000110, 0b1011011, 0b1001111, 0b1100110,
-    0b1101101, 0b1111101, 0b0000111, 0b1111111, 0b1101111,
+    0b01000000, 0b01111001, 0b00100100, 0b00110000, 0b00011001,
+    0b00010010, 0b00000010, 0b01111000, 0b00000000, 0b00010000,
 };
 
-//                          a, b, c, d, e, f, g
-const int segment_pins[] = {4, 5, 6, 7, 8, 9, 10};
-
 void write_digit(int digit) {
   if (digit > 9 || digit < 0)
     return;
 
-  long mask = digits[digit];
-  for (int i = 0; i < 7; i++) {
-    short on = 0 != (mask & (i == 0 ? 1 : 2 << (i - 1)));
-    // digitalWrite(segment_pins[i], on);
-  }
-}
-
-void setup(void) {
-  for (int i = 0; i < 7; i++) {
-    int pin = segment_pins[i];
-    DDRA |= (1 << PA1);
-  }
-}
-
-int i = 0;
-void loop(void) {
-  write_digit(i);
-  _delay_ms(500);
-  i = (i + 1) % 10;
+  PORTA = digits[digit];
 }
 
 int main(void) {
-  setup();
+  DDRA |= 0b11111111;
 
+  int i = 0;
   while (1) {
-    loop();
-    // PORTA |= (1 << PA1);
-    // _delay_ms(500);
-    // PORTA &= ~(1 << PA1);
-    // _delay_ms(500);
+    write_digit(i);
+    _delay_ms(500);
+    i = (i + 1) % 10;
   }
-
   return 0;
 }