STM8S_StdPeriph_Examples/UART1/UART1_HyperTerminal_Interrupt/main.c

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/**
  ******************************************************************************
  * @file    UART1_HyperTerminal_Interrupt\main.c
  * @author  MCD Application Team
  * @version  V2.2.0
  * @date     30-September-2014
  * @brief   This file contains the main function for UART1 using interrupts in 
  *          communication example.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */ 

/* Includes ------------------------------------------------------------------*/
#include "stm8s.h"
#include "stm8s_eval.h"

/**
  * @addtogroup UART1_HyperTerminal_Interrupt
  * @{
  */
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void GPIO_Config(void);
static void CLK_Config(void);
static void UART1_Config(void); 
void Delay(uint32_t nCount);
/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
void main(void)
{
  /* Clock configuration -----------------------------------------*/
  CLK_Config();  

  /* GPIO configuration -----------------------------------------*/
  GPIO_Config();  

  /* UART1 configuration -----------------------------------------*/
  UART1_Config();  


  while (1)
  {
    STM_EVAL_LEDToggle(LED1);
    STM_EVAL_LEDToggle(LED2);
    STM_EVAL_LEDToggle(LED3);
    STM_EVAL_LEDToggle(LED4);
    Delay((uint32_t)0xFFFF);
  }
}

/**
  * @brief  Configure system clock to run at 16Mhz
  * @param  None
  * @retval None
  */
static void CLK_Config(void)
{
    /* Initialization of the clock */
    /* Clock divider to HSI/1 */
    CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
}

/**
  * @brief  Configure LEDs available on the evaluation board
  * @param  None
  * @retval None
  */
static void GPIO_Config(void)
{
  /* Initialize LEDs mounted on the Eval board */
  STM_EVAL_LEDInit(LED1);
  STM_EVAL_LEDInit(LED2);
  STM_EVAL_LEDInit(LED3);
  STM_EVAL_LEDInit(LED4);
}

/**
  * @brief  Configure UART1 for the communication with HyperTerminal
  * @param  None
  * @retval None
  */
static void UART1_Config(void)
{
  /* EVAL COM (UART) configuration -----------------------------------------*/
  /* USART configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - Odd parity
        - Receive and transmit enabled
        - UART Clock disabled
  */
  UART1_Init((uint32_t)115200, UART1_WORDLENGTH_8D,UART1_STOPBITS_1, UART1_PARITY_ODD,
                   UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TXRX_ENABLE);

  /* Enable the UART Receive interrupt: this interrupt is generated when the UART
    receive data register is not empty */
  UART1_ITConfig(UART1_IT_RXNE_OR, ENABLE);
  
  /* Enable the UART Transmit complete interrupt: this interrupt is generated 
     when the UART transmit Shift Register is empty */
  UART1_ITConfig(UART1_IT_TXE, ENABLE);

  /* Enable UART */
  UART1_Cmd(ENABLE);
  
    /* Enable general interrupts */
  enableInterrupts();
}

/**
  * @brief  Delay.
  * @param  nCount
  * @retval None
  */
void Delay(uint32_t nCount)
{
  /* Decrement nCount value */
  while (nCount != 0)
  {
    nCount--;
  }
}

#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) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif

/**
  * @}
  */


/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/