1 files changed, 0 insertions, 80 deletions
diff --git a/02.5-collatz/src/usart.c b/02.5-collatz/src/usart.c
deleted file mode 100644
index eddfbe7..0000000
--- a/02.5-collatz/src/usart.c
+++ /dev/null
@@ -1,80 +0,0 @@
-#include "usart.h"
-#include "delay.h"
-
-void set_usart1_clock_src(__IO rcc_t* rcc, usart_clk_src_t usart_clk_src)
-{
-  rcc->ccip_r = rcc->ccip_r & (~0x03) | usart_clk_src;
-}
-
-void set_usart2_clock_src(__IO rcc_t* rcc, usart_clk_src_t usart_clk_src)
-{
-  rcc->ccip_r = rcc->ccip_r & ~(0x03 << 2) | (usart_clk_src << 2);
-}
-
-void set_usart2_clock_enabled(__IO rcc_t* rcc, bool enable)
-{
-  if (enable) {
-    rcc->apb1en1_r |= BIT(17);
-  } else {
-    rcc->apb1en1_r &= ~BIT(17);
-  }
-}
-
-void set_usart1_clock_enabled(__IO rcc_t* rcc, bool enable)
-{
-  if (enable) {
-    rcc->apb2en_r |= BIT(14);
-  } else {
-    rcc->apb2en_r &= ~BIT(14);
-  }
-}
-
-void usart_set_parity(__IO usart_t* usart, usart_parity_t parity)
-{
-  uint32_t c_r1 = usart->c_r1;
-  c_r1 &= ~(0x3 << 9);
-  c_r1 |= parity;
-  usart->c_r1 = c_r1;
-}
-
-void usart_set_enabled(__IO usart_t* usart, usart_enable_t enabled)
-{
-  uint32_t c_r1 = usart->c_r1;
-
-  if (!enabled) {
-    usart->c1_bf.ue = 0;
-  } else {
-    /* Set the rx enabled. */
-    usart->c1_bf.re = !!(enabled & USART_ENABLE_RX);
-    usart->c1_bf.te = !!(enabled & USART_ENABLE_TX);
-    usart->c1_bf.ue = 1;
-  }
-}
-
-void usart_transmit_byte(__IO usart_t* usart, uint8_t byte)
-{
-  usart->td_r = byte;
-  /* Per the manual, when bit 7 of the IS register is set, then the usart
-   * data has been sent to the shift register.
-   *
-   * This bit is cleared by writing to the TD register. */
-  while (!(usart->is_r & BIT(7)))
-    ;
-}
-
-void usart_transmit_bytes(__IO usart_t* usart, const uint8_t* bytes, uint32_t n)
-{
-  while (n --) {
-    usart_transmit_byte(usart, *(bytes ++));
-  }
-}
-
-void usart_transmit_str(__IO usart_t* usart, const char* str)
-{
-  while (*str) {
-    if (*str == '\n') {
-      usart_transmit_byte(usart, '\r');
-    }
-    usart_transmit_byte(usart, *(str ++));
-  }
-}