1 files changed, 0 insertions, 103 deletions
diff --git a/03-refactor/src/main.c b/03-refactor/src/main.c
deleted file mode 100644
index 97449b2..0000000
--- a/03-refactor/src/main.c
+++ /dev/null
@@ -1,103 +0,0 @@
-
-#include "clock.h"
-#include "delay.h"
-#include "gpio.h"
-#include "spin.h"
-#include "usart.h"
-#include "sio.h"
-
-void unhandled_isr_2();
-void init();
-
-int in_the_data;
-volatile uint32_t delay_amt = 20000000 / 4;
-
-int enable_usart1(uint32_t baud_rate)
-{
-  /* Enable the GPIO bus. */
-  __IO gpio_port_t* port_b = enable_gpio(GPIO_PORT_B);
-
-  /* Enable the USART clock. */
-  RCC.apb2en_r |= BIT(14);
-
-  /* == Configure the IO Pins. == */
-
-  /* GPIO D5 (Port B pin 6) is USART1 Tx,
-   * GPIO D6 (Port B pin 7) is USART1 Rx. */
-  set_gpio_pin_mode(port_b, PIN_6, MODE_ALTERNATE);
-  set_gpio_pin_mode(port_b, PIN_7, MODE_ALTERNATE);
-
-  /* Set the GPIO pins to use the USART alternate function. */
-  set_gpio_alternate_function(port_b, PIN_6, AFN_7);
-  set_gpio_alternate_function(port_b, PIN_7, AFN_7);
-
-  RCC.apb2rst_r &= ~BIT(14); /* De-assert reset of USART1 */
-
-  uint32_t baud_rate_div = 80000000 / baud_rate;
-  USART1.c1.r = 0;
-  USART1.c2.r = 0;
-  USART1.c3.r = 0;
-  USART1.br.v = baud_rate_div;
-
-  USART1.c1.r |= BIT(3) | BIT(2);
-  USART1.c1.r |= BIT(0);
-
-  /* Enable the transmitter and the receiver. */
-  usart_set_enabled(&USART1, USART_ENABLE_TX);
-  asm volatile(" cpsie i ");
-}
-
-void dwn() {
-  int val = 19;
-
-  while (val > 1) {
-    usart_printf(&USART2, "Value: %2d\r\n", val);
-    if ((val & 1) == 0) {
-      val /= 2;
-    } else {
-      val = val * 3 + 1;
-    }
-  }
-  usart_printf(&USART2, "Value: %2d\r\n", val);
-}
-
-/* Main function. This gets executed from the interrupt vector defined above. */
-int main()
-{
-  /* Enable the GPIO port B. */
-  // __IO gpio_port_t* port_b = enable_gpio(GPIO_PORT_B);
-  // gpio_output_pin_t pin3 = set_gpio_pin_output(port_b, PIN_3);
-  // gpio_output_pin_t pin1 = set_gpio_pin_output(port_b, PIN_1);
-
-  /* Enable a higher clock frequency. */
-  set_system_clock_MHz(80);
-
-  enable_usart2(115200);
-  int on_the_stack;
-
-  USART2.c1.tcie = 1;
-  USART2.c1.txeie = 1;
-
-  // pin_on(pin3);
-  if (is_usart2_enabled()) {
-    dwn();
-    usart_printf(&USART2, "Hello, %d!\r\n", -15);
-    usart_printf(&USART2, "Hello, %022x\r\n", 0xeadbeef);
-    usart_printf(&USART2, "on_the_stack: %08X\r\n", (unsigned) &on_the_stack);
-
-    int i;
-
-    printf("isr-2: %08x\r\n", (unsigned int)(void *) unhandled_isr_2);
-    printf("init: %08x\r\n", (unsigned int)(void *) init);
-    for (i = 0; i < 20; ++ i) {
-      printf("isr %d: %08x\r\n", i, *(unsigned int*)(0x08000000 + i * 4));
-    }
-  }
-
-  // usart_printf(&USART2, "that_thing: %d\n", *(unsigned*)(0x0));
-  // for(;;);
-}
-
-void do_thing(void(*fn)()) {
-  fn();
-}