#include "stm32f10x.h"
#include "stm32_eval.h"
#include <stdio.h>
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Constants used by Serial Command Line Mode */
#define CMD_STRING_SIZE 128
USART_InitTypeDef USART_InitStructure;
void GetInputString (uint8_t * buffP);
uint8_t GetKey(void);
uint32_t SerialKeyPressed(uint8_t *key);
void SerialPutChar(uint8_t c);
void USART_Configuration(void);
void Put_String(u8 *p);
int main(void)
{
uint8_t inputstr[CMD_STRING_SIZE];
u8 str[]={"1234abcd1234"};
USART_Configuration();
// Put_String(inputstr);
while (1)
{ Put_String(str);
GetInputString(inputstr);
}
}
void USART_Configuration(void)
{ USART_InitStructure.USART_BaudRate = 115200; //串口2
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx;
/* 完成串口时钟配置、GPIO配置、根据上述参数初始化并使能串口 */
STM_EVAL_COMInit(COM1, &USART_InitStructure); //串口1
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx;
STM_EVAL_COMInit(COM2, &USART_InitStructure);
}
void GetInputString (uint8_t * buffP)
{
u32 bytes_read = 0;
u8 c = 0;
do
{
c = GetKey();
if (bytes_read >= (CMD_STRING_SIZE))
{
bytes_read = 0;
// continue;
break;
}
if (c >= 0x20 && c <= 0x7E)
{
buffP[bytes_read++] = c;
}
}
while (c!='\0');
buffP[bytes_read] = '\0';
}
/**************************************************/
void Put_String(u8 *p) //USART2发送字符串
{
while(*p)
{
USART_SendData(USART2, *p++);
while(USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET)
{
}
}
}
u32 SerialKeyPressed(u8 *key) //USART1接收数据
{
if ( USART_GetFlagStatus(EVAL_COM2, USART_FLAG_RXNE) != RESET)
{
*key = (u8)EVAL_COM2->DR & 0xFF;
return 1;
}
else
{
return 0;
}
}
/**
* @brief Wait untill Get a key from the HyperTerminal
* @param None
* @retval The Key Pressed
*/
u8 GetKey(void) //接收数据
{
u8 key = 0;
/* Waiting for user input */
while (1)
{
if (SerialKeyPressed((u8*)&key)) break;
}
return key;
}
#ifdef USE_FULL_ASSERT
void assert_failed(u8* file, u32 line)
{
while (1)
{
}
}
#endif
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