simple uart enabled.

1 files changed, 34 insertions, 5 deletions

diff --git a/usart/include/usart.h b/usart/include/usart.h
index ebc5458..257aab6 100644
--- a/usart/include/usart.h
+++ b/usart/include/usart.h
@@ -18,7 +18,33 @@ typedef enum {
 
 typedef struct {
   /* USART configuration registers 0x04 - 0x0c. */
-  uint32_t c_r1;
+  union {
+    uint32_t c_r1;
+    struct {
+      bits_t ue:1;     /* UART enable */
+      bits_t uesm:1;   /* UART enabled in stop mode. */
+      bits_t re:1;     /* reciever enabled. */
+      bits_t te:1;     /* transmitter enabled. */
+      bits_t idleie:1; /* Idle interrupt enabled. */
+      bits_t rxneie:1; /* RXNEIE RXNE interrupt enable. */
+      bits_t tcie:1;
+      bits_t txeie:1;
+      bits_t peie:1;
+      bits_t ps:1;
+      bits_t pce:1;
+      bits_t wake:1;
+      bits_t m0:1;
+      bits_t mme:1;
+      bits_t cmie:1;
+      bits_t over8:1;
+      bits_t dedt:4;
+      bits_t deat:4;
+      bits_t rtoie:1;
+      bits_t eobie:1;
+      bits_t m1:1;
+      bits_t reserved:3;
+    } PACKED c1_bf;
+  };
   uint32_t c_r2;
   uint32_t c_r3;
 
@@ -73,10 +99,9 @@ typedef enum {
 } usart_parity_t;
 
 typedef enum {
-  USART_ENABLE_TX_RX    = 0x0d, /* 0b1101 */
-  USART_ENABLE_TX       = 0x09, /* 0b1001 */
-  USART_ENABLE_RX       = 0x05, /* 0b0101 */
-  USART_ENABLE_DISABLED = 0x00, /* 0b0000 */
+  USART_ENABLE_TX       = 0x02,
+  USART_ENABLE_RX       = 0x01,
+  USART_ENABLE_DISABLED = 0x00,
 } usart_enable_t;
 
 void usart_set_parity(__IO usart_t* usart, usart_parity_t parity);
@@ -97,6 +122,10 @@ void set_usart2_clock_src(__IO rcc_t* rcc, usart_clk_src_t usart_clk_src);
 
 void set_usart2_clock_enabled(__IO rcc_t* rcc, bool enable);
 
+void usart_transmit_bytes(
+    __IO usart_t* usart, const uint8_t* bytes, uint32_t n);
+
+void usart_transmit_str(__IO usart_t* usart, const char* str);
 
 
 #endif /* H__USART_ */