5. ders hayırlı olsun
https://www.youtube.com/watch?v=zMsThjMpSoc
/**
******************************************************************************
* File Name : main.c
* Description : Main program body
******************************************************************************
*
* COPYRIGHT(c) 2017 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f1xx_hal.h"
#include "stdlib.h"
#include <string.h>
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
#define USART1_ENABLE USART1->CR1|=0X00000200//USART ENABLE
#define USART1_DISABLE USART1->CR1&=0XFFFFFDFF//USART DISABLE
#define USART1_8BIT USART1->CR1|=0x00001000 //DATA UZUNLUGU 8 BIT
#define USART1_9BIT USART1->CR1&=0xFFFFEFFF //DATA UZUNLUGU 9 BIT
#define USART1_IDLE_WAKEUP USART1->CR1&=0xFFFFF7FF//IDLE WAKE UP
#define USART1_ADRESS_WAKEUP USART1->CR1|=0x00000800//ADRESS WAKE UP
#define USART1_PARITY_CONTROL_ENABLE USART1->CR1|=0x00000400 //PARITY CHECK ENABLE
#define USART1_PARITY_CONTROL_DISABLE USART1->CR1&=0xFFFFFBFF //PARITY CHECH DISABLE
#define USART1_ODD_PARITY USART1->CR1|=0x00000200 //ODD PARITY
#define USART1_EVEN_PARITY USART1->CR1&=0xFDFF //EVEN PARITY
#define USART1_PE_INTERRUPT_ENABLE USART1->CR1|=0x00000100//PARITY ERROR INTERRUPT ENABLE
#define USART1_PE_INTERRUPT_DISABLE USART1->CR1&=0xFDFF//PARITY ERROR INTERRUPT DISABLE
#define USART1_TXE_INTERRUPT_ENABLE USART1->CR1|=0x00000080//TRANSMIT BUFFER NOT EMPTY INTERRUPT ENABLE
#define USART1_TXE_INTERRUPT_DISABLE USART1->CR1&=0xFF7F//TRANSMIT BUFFER NOT EMPTY INTERRUPT DISABLE
#define USART1_TC_INTERRUPT_ENABLE USART1->CR1|=0x00000040//TRANSMIT COMPLETE INTERRUPT ENABLE
#define USART1_TC_INTERRUPT_DISABLE USART1->CR1&=0xFFBF//TRANSMIT COMPLETE INTERRUPT DISABLE
#define USART1_RXNE_INTERRUPT_ENABLE USART1->CR1|=0x00000020//RECEIVE BUFFER NOT EMPTY INTERRUPT ENABLE
#define USART1_RXNE_INTERRUPT_DISABLE USART1->CR1&=0xFFDF//RECEIVE BUFFER NOT EMPTY INTERRUPT DISABLE
#define USART1_IDLE_INTERRUPT_ENABLE USART1->CR1|=0x00000010//IDLE DETECTION INTERRUPT ENABLE
#define USART1_IDLE_INTERRUPT_DISABLE USART1->CR1&=0xFFEF//IDLE DETECTION INTERRUPT DISABLE
#define USART1_ERR_INTERRUPT_ENABLE USART1->CR3|=0x00000001 //ERROR INTERRUPT ENABLE
#define USART1_ERR_INTERRUPT_DISABLE USART1->CR3&=0xFFFFFFFE //ERROR INTERRUPT DISABLE
#define USART1_TX_ENA USART1->CR1|=0x00000008//TRANSMIT ENABLE
#define USART1_TX_DIS USART1->CR1&=0xFFF7//TRANSMIT DISABLE
#define USART1_RX_ENA USART1->CR1|=0x00000004 //RECEIVE ENABLE
#define USART1_RX_DIS USART1->CR1&=0xFFFB //URECEIVE DISABLE
#define USART1_ACTIVE_MODE_CHECK !(USART1->CR1&0x00000002)//ACTIVE MODE CHECK
#define USART1_MUTE_MODE_CHECK USART1->CR1&0x00000002//MUTE MODE CHECK
#define USART1_SEND_BREAK USART1->CR1|=0x00000001//SEND BREAK
#define USART1_DATA USART1->DR //DATA REGISTER
#define USART1_RWU_SET USART1->CR1|=0x00000002//USARTI MUTE MODA AL
#define USART1_RWU_RESET USART1->CR1&=0xFFFFFFFD//USARTI ACTIVE MODA AL
#define USART1_ADRESS USART1->CR2 //USART ADRESI AYARLA *** STOP BIT VE LIN BURADAN AYARLANIYOR DIKKAT
//USART1 TANIMLAMALARI
#define USART1_ERR_FLAG (USART1->SR&0x0000000F)//HERHANGI BIR ERROR VARMI KONTROL ET
#define USART1_TC_FLAG (USART1->SR&0x00000040)//TRANSFER COMPLETE BITIMI KONTROL ET
#define USART1_RX_FLAG (USART1->SR&0x00000020)//RECEIVE BUFFEINDA DATA VARMI KONTROL ET
#define USART1_RX_FLAG_CLEAR USART1->SR&=0xFFFFFFDF //RECEIVE FLAGI TEMIZLE
#define USART1_TC_FLAG_CLEAR USART1->SR&=0xFFFFFFBF//USART TRANSFER COMPLETE FLAGI TEMIZLE
#define USART1_TXE_FLG (USART1->SR&0x00000080) //TRANSMIT BUFFER EMPTY FLAG
#define USART1_IDLE_FLG (USART1->SR&0x00000010) //IDLE LINE FLAG
#define USART1_OVR_FLG (USART1->SR&0x00000008) //OVERRUN ERROR FLAG
#define USART1_NE_FLG (USART1->SR&0x00000004) //NOISE ERROR FLAG
#define USART1_FE_FLG (USART1->SR&0x00000002) //FRAMING ERROR FLAG
#define USART1_PE_FLG (USART1->SR&0x00000001) //PARITY ERROR FLAG
/* USER CODE END Includes */
UART_HandleTypeDef huart1;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
static void MX_USART1_UART_Init(void);
void USART_put(USART_TypeDef *USARTx , volatile char ch)
{
USARTx->DR=ch;
while(!USART1_TXE_FLG);
while(!USART1_TC_FLAG);
}
void USART_printf(USART_TypeDef *USARTx , volatile char *str)
{
//pin high
while(*str)
{
USARTx->DR=*str;
while(!USART1_TXE_FLG);
*str++;
}
while(!USART1_TC_FLAG);
//pin low
}
char cevap[100],dummy;
void USART1_IRQHandler(void)
{
char dummy_usart1=0;
if(USART1_ERR_FLAG)// herhangi bir error varmi kontrol et
{
USART1_RX_DIS;// uarti disable et
dummy_usart1=USART1->SR; // uarti sifirlamak icin yapilmasi gereken adimlar
dummy_usart1=USART1->DR; // uarti sifirlamak icin yapilmasi gereken adimlar
dummy_usart1=USART1->SR; // uarti sifirlamak icin yapilmasi gereken adimlar
USART1_RX_ENA;
}
else if(USART1_RX_FLAG)//RECEIVE REGISTERA DATA VARMI BAK
{
dummy_usart1=USART1_DATA;//DATAYI AL
sprintf(cevap,"OK %u\n\r",5);//degerleri cevap stringine at
USART_printf(USART1,&cevap[0]);
USART1_RX_FLAG_CLEAR;
}
HAL_UART_IRQHandler(&huart1);
}
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
// sprintf(cevap,"OK\n\r");
while (1)
{
/* USER CODE END WHILE */
//USART_printf(USART1,&cevap[0]);
// HAL_Delay(1000);
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* USART1 init function */
static void MX_USART1_UART_Init(void)
{
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
USART1_DISABLE;
USART1_RXNE_INTERRUPT_ENABLE ;
USART1_ERR_INTERRUPT_ENABLE ;
USART1_TX_ENA;
USART1_RX_ENA ;
dummy=USART1_DATA;
USART1_ENABLE;
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Error_Handler */
}
#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 CODE BEGIN 6 */
/* 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) */
/* USER CODE END 6 */
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
bu arada printf i interruptin içinde kullandım sırf oku yazma aynı örnekte olsun diye yoksa kendi bahsettiğim hatayı siz yapmayın(interrupt içinde beklemeyi)