STM8S/A Standard Peripherals Firmware Library: main.c Source File

00001 /**
00002   ******************************************************************************
00003   * @file    UART1_HyperTerminal_Interrupt\main.c
00004   * @author  MCD Application Team
00005   * @version  V2.2.0
00006   * @date     30-September-2014
00007   * @brief   This file contains the main function for UART1 using interrupts in 
00008   *          communication example.
00009   ******************************************************************************
00010   * @attention
00011   *
00012   * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
00013   *
00014   * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
00015   * You may not use this file except in compliance with the License.
00016   * You may obtain a copy of the License at:
00017   *
00018   *        http://www.st.com/software_license_agreement_liberty_v2
00019   *
00020   * Unless required by applicable law or agreed to in writing, software 
00021   * distributed under the License is distributed on an "AS IS" BASIS, 
00022   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00023   * See the License for the specific language governing permissions and
00024   * limitations under the License.
00025   *
00026   ******************************************************************************
00027   */ 
00028 
00029 /* Includes ------------------------------------------------------------------*/
00030 #include "stm8s.h"
00031 #include "stm8s_eval.h"
00032 
00033 /**
00034   * @addtogroup UART1_HyperTerminal_Interrupt
00035   * @{
00036   */
00037 /* Private typedef -----------------------------------------------------------*/
00038 /* Private define ------------------------------------------------------------*/
00039 /* Private macro -------------------------------------------------------------*/
00040 /* Private variables ---------------------------------------------------------*/
00041 /* Private function prototypes -----------------------------------------------*/
00042 static void GPIO_Config(void);
00043 static void CLK_Config(void);
00044 static void UART1_Config(void); 
00045 void Delay(uint32_t nCount);
00046 /* Private functions ---------------------------------------------------------*/
00047 
00048 /**
00049   * @brief  Main program.
00050   * @param  None
00051   * @retval None
00052   */
00053 void main(void)
00054 {
00055   /* Clock configuration -----------------------------------------*/
00056   CLK_Config();  
00057 
00058   /* GPIO configuration -----------------------------------------*/
00059   GPIO_Config();  
00060 
00061   /* UART1 configuration -----------------------------------------*/
00062   UART1_Config();  
00063 
00064 
00065   while (1)
00066   {
00067     STM_EVAL_LEDToggle(LED1);
00068     STM_EVAL_LEDToggle(LED2);
00069     STM_EVAL_LEDToggle(LED3);
00070     STM_EVAL_LEDToggle(LED4);
00071     Delay((uint32_t)0xFFFF);
00072   }
00073 }
00074 
00075 /**
00076   * @brief  Configure system clock to run at 16Mhz
00077   * @param  None
00078   * @retval None
00079   */
00080 static void CLK_Config(void)
00081 {
00082     /* Initialization of the clock */
00083     /* Clock divider to HSI/1 */
00084     CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
00085 }
00086 
00087 /**
00088   * @brief  Configure LEDs available on the evaluation board
00089   * @param  None
00090   * @retval None
00091   */
00092 static void GPIO_Config(void)
00093 {
00094   /* Initialize LEDs mounted on the Eval board */
00095   STM_EVAL_LEDInit(LED1);
00096   STM_EVAL_LEDInit(LED2);
00097   STM_EVAL_LEDInit(LED3);
00098   STM_EVAL_LEDInit(LED4);
00099 }
00100 
00101 /**
00102   * @brief  Configure UART1 for the communication with HyperTerminal
00103   * @param  None
00104   * @retval None
00105   */
00106 static void UART1_Config(void)
00107 {
00108   /* EVAL COM (UART) configuration -----------------------------------------*/
00109   /* USART configured as follow:
00110         - BaudRate = 115200 baud  
00111         - Word Length = 8 Bits
00112         - One Stop Bit
00113         - Odd parity
00114         - Receive and transmit enabled
00115         - UART Clock disabled
00116   */
00117   UART1_Init((uint32_t)115200, UART1_WORDLENGTH_8D,UART1_STOPBITS_1, UART1_PARITY_ODD,
00118                    UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TXRX_ENABLE);
00119 
00120   /* Enable the UART Receive interrupt: this interrupt is generated when the UART
00121     receive data register is not empty */
00122   UART1_ITConfig(UART1_IT_RXNE_OR, ENABLE);
00123   
00124   /* Enable the UART Transmit complete interrupt: this interrupt is generated 
00125      when the UART transmit Shift Register is empty */
00126   UART1_ITConfig(UART1_IT_TXE, ENABLE);
00127 
00128   /* Enable UART */
00129   UART1_Cmd(ENABLE);
00130   
00131     /* Enable general interrupts */
00132   enableInterrupts();
00133 }
00134 
00135 /**
00136   * @brief  Delay.
00137   * @param  nCount
00138   * @retval None
00139   */
00140 void Delay(uint32_t nCount)
00141 {
00142   /* Decrement nCount value */
00143   while (nCount != 0)
00144   {
00145     nCount--;
00146   }
00147 }
00148 
00149 #ifdef USE_FULL_ASSERT
00150 
00151 /**
00152   * @brief  Reports the name of the source file and the source line number
00153   *   where the assert_param error has occurred.
00154   * @param file: pointer to the source file name
00155   * @param line: assert_param error line source number
00156   * @retval None
00157   */
00158 void assert_failed(uint8_t* file, uint32_t line)
00159 { 
00160   /* User can add his own implementation to report the file name and line number,
00161      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
00162 
00163   /* Infinite loop */
00164   while (1)
00165   {
00166   }
00167 }
00168 #endif
00169 
00170 /**
00171   * @}
00172   */
00173 
00174 
00175 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/