1 files changed, 0 insertions, 49 deletions
diff --git a/02.5-collatz/src/spin.c b/02.5-collatz/src/spin.c
deleted file mode 100644
index fbd16b6..0000000
--- a/02.5-collatz/src/spin.c
+++ /dev/null
@@ -1,49 +0,0 @@
-#include "spin.h"
-#include "delay.h"
-#include "gpio.h"
-
-#define SHORT_DELAY 200000
-#define LONG_DELAY (SHORT_DELAY * 2)
-
-static void flash_bit(
-    uint32_t base, gpio_output_pin_t out_pin,
-    uint8_t bit /* 0 => 0, non-zero => 1 */)
-{
-  pin_on(out_pin);
-  if (bit) {
-    delay(base * 2);
-  } else {
-    delay(base);
-  }
-  pin_off(out_pin);
-  delay(base);
-}
-
-void spin(uint32_t base, uint8_t c)
-{
-  uint8_t code;
-  __IO gpio_port_t* port_b = enable_gpio(GPIO_PORT_B);
-  gpio_output_pin_t pin3 = set_gpio_pin_output(port_b, PIN_3);
-
-  for (;;) {
-    code = c;
-    flash_bit(base, pin3, code & 0x80);
-    code <<= 1;
-    flash_bit(base, pin3, code & 0x80);
-    code <<= 1;
-    flash_bit(base, pin3, code & 0x80);
-    code <<= 1;
-    flash_bit(base, pin3, code & 0x80);
-
-    code <<= 1;
-    flash_bit(base, pin3, code & 0x80);
-    code <<= 1;
-    flash_bit(base, pin3, code & 0x80);
-    code <<= 1;
-    flash_bit(base, pin3, code & 0x80);
-    code <<= 1;
-    flash_bit(base, pin3, code & 0x80);
-
-    delay(base * 4);
-  }
-}