/****************************************************************************
*   Copyright: (C)2014 Î人ÁèÔÆǶÈëʽʵÑéÊÒ www.emblinux.com
*      Author: GuoWenxue<guowenxue@gmail.com> QQ: 281143292
* Description: ·Ü¶·STM32v5¿ª·¢°å´®¿Ú²Ù×÷º¯Êý½Ó¿Ú,printf¹³×Óº¯Êýfputc
* 
*   ChangeLog:
*        °æ±¾ºÅ     ÈÕÆÚ       ×÷Õß      ˵Ã÷
*        V1.0.0  2014.08.25  GuoWenxue   ·¢²¼¸Ã°æ±¾
****************************************************************************/
#include "stm32f10x.h"
#include "stm32f10x_usart.h"
#include "stm32v5_uart.h"
#include <stdio.h>

  /* USARTx configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
void USART_Config(USART_TypeDef* USARTx)
{
	USART_InitTypeDef USART_InitStructure;
	
  /* Configure USART1 */	
  USART_InitStructure.USART_BaudRate = 115200;						//ËÙÂÊ115200bps
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;		//Êý¾Ýλ8λ
  USART_InitStructure.USART_StopBits = USART_StopBits_1;			//ֹͣλ1λ
  USART_InitStructure.USART_Parity = USART_Parity_No;				//ÎÞУÑéλ
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;   //ÎÞÓ²¼þÁ÷¿Ø
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;					//ÊÕ·¢Ä£Ê½
  USART_Init(USARTx, &USART_InitStructure);							//ÅäÖô®¿Ú²ÎÊýº¯Êý
 
#if 0	
  /* Enable USARTx Receive and Transmit interrupts */
  USART_ITConfig(USARTx, USART_IT_RXNE, ENABLE);          //ʹÄܽÓÊÕÖжÏ
  USART_ITConfig(USARTx, USART_IT_TXE, ENABLE);						//ʹÄÜ·¢ËÍ»º³å¿ÕÖÐ¶Ï   
#endif
	
  /* Enable the USARTx */
  USART_Cmd(USARTx, ENABLE);	
}

void dbg_setup_uart(void)
{
	GPIO_InitTypeDef   GPIO_InitStructure;	
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE); 

  /* ĬÈϸ´Óù¦ÄÜ */	
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;	         		 //USART1 TX
	GPIO_InitStructure.GPIO_Speed= GPIO_Speed_50MHz; 
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;    		 //¸´ÓÃÍÆÍìÊä³ö
  GPIO_Init(GPIOA, &GPIO_InitStructure);		
	
  /* ¸´Óù¦ÄܵÄÊäÈëÒý½Å±ØÐëÅäÖÃΪÊäÈëģʽ£¨¸¡¿Õ/ÉÏÀ­/ÏÂÀ­µÄÒ»ÖÖ£©*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;	         	 //USART1 RX
	GPIO_InitStructure.GPIO_Speed= GPIO_Speed_50MHz; 
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  //¸´Óø¡¿ÕÊäÈë
  GPIO_Init(GPIOA, &GPIO_InitStructure);		         	  
	
  USART_Config(DBG_UART);

  USART_SendData(DBG_UART, '\n'); 
  while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET); 	
}

int fputc(int ch, FILE *f) 
{ 
	if('\n' == ch)
	{
	   USART_SendData(DBG_UART, (uint8_t) '\r'); 
     while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)  ; 
	}
		
  USART_SendData(DBG_UART, (uint8_t) ch); 
  while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET); 
	
  return ch; 
}