STM32 F401RE i UART

[fryta]

Witam serdecznie mam taki problem ponieważ chciałbym wpisywać hasło z terminala do uC, ale niestety nie wiem jak zrobić aby to były większe liczby niż 9. Wiem, że ładują się kody ASCII i ze trzeba dać tam bufor ale kompletnie nie wiem jak podejść do tematu.

Czy mógłby ktoś pomóc?

// STM32 USART2 (Tx PA.2, Rx PA.3) STM32F401RE NUCLEO - [email protected]

#include "stm32f4xx.h"

/**************************************************************************************/

void RCC_Configuration(void)
{
 /* --------------------------- System Clocks Configuration -----------------*/
 /* USART2 clock enable */
 RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);

 /* GPIOA clock enable */
 RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
}

/**************************************************************************************/

void GPIO_Configuration(void)
{
 GPIO_InitTypeDef GPIO_InitStructure;

 /*-------------------------- GPIO Configuration ----------------------------*/
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3; // PA.2 USART2_TX, PA.3 USART2_RX
 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
 GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
 GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
 GPIO_Init(GPIOA, &GPIO_InitStructure);

 /* Connect USART pins to AF */
 GPIO_PinAFConfig(GPIOA, GPIO_PinSource2, GPIO_AF_USART2);
 GPIO_PinAFConfig(GPIOA, GPIO_PinSource3, GPIO_AF_USART2);
}

/**************************************************************************************/

void USART2_Configuration(void)
{
 USART_InitTypeDef USART_InitStructure;

 /* USARTx configuration ------------------------------------------------------*/
 /* 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
 */
 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 | USART_Mode_Tx;

 USART_Init(USART2, &USART_InitStructure);

 USART_Cmd(USART2, ENABLE);
}

/**************************************************************************************/

void OutString(char *s)
{
 while(*s)
 {
   while(USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET); // Wait for Empty

   USART_SendData(USART2, *s++); // Send Char
 }
}

/**************************************************************************************/

int main(void)
{
 RCC_Configuration();

 GPIO_Configuration();

 USART2_Configuration();

 OutString("Welcome to Nucleo F401RE\r\n");

 while(1) // Don't want to exit
 {
   //uint16_t Data;
  	  short Data=0;
  	  short Password='10';
  	  while(USART_GetFlagStatus(USART2, USART_FLAG_RXNE) == RESET); // Wait for Char


  	  Data=USART_ReceiveData(USART2);
  	  if(Password==Data)
   			{
  		  	  OutString("Good\r\n");
   			}
  	  else OutString("Not\r\n");



 }
}

/**************************************************************************************/

#ifdef  USE_FULL_ASSERT

/**
 * @brief  Reports the name of the source file and the source line number
 *         where the assert_param error has occurred.
 * @param  file: pointer to the source file name
 * @param  line: assert_param error line source number
 * @retval None
 */
void assert_failed(uint8_t* file, uint32_t line)
{
 /* User can add his own implementation to report the file name and line number,
    ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

 while (1)
 {}
}
#endif

/**************************************************************************************/