unsigned int data=0;
unsigned int *p=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();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_SPI1_Init();
MX_SPI2_Init();
MX_USART1_UART_Init();
MX_TIM6_Init();
/* USER CODE BEGIN 2 */
printf("来啦老弟\n");
data = (unsigned int)GPIOB_BASE;
printf("%0x\n",data);
data = (unsigned int)GPIOB;
printf("%0x\n",data);
data = (unsigned int)&GPIOB->ODR;
printf("%0x\n",data);
data =((unsigned int)GPIOB + ( (unsigned int)&GPIOB->ODR - 0x40000000)*32 + 11*4);
printf("%0x\n",data);
p=&data;
//p=(unsigned int *)(0x480086ac);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
//IO_Test();
/* USER CODE END WHILE */
*p=1;
HAL_Delay(100);
*p=0;
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
实验没有成功
http://www.openedv.com/thread-78184-1-1.html
https://www.cnblogs.com/firege/p/5748713.html
面前可以
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
** This notice applies to any and all portions of this file
* that are not between comment pairs USER CODE BEGIN and
* USER CODE END. Other portions of this file, whether
* inserted by the user or by software development tools
* are owned by their respective copyright owners.
*
* COPYRIGHT(c) 2018 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "spi.h"
#include "tim.h"
#include "usart.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
void IO_Test(void);
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
unsigned int GPIOxBSRR=0;
unsigned int GPIOxBRR=0;
int main(void)
{
/* USER CODE BEGIN 1 */
unsigned int data;
unsigned int *p,*p1,*p2;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_SPI1_Init();
MX_SPI2_Init();
MX_USART1_UART_Init();
MX_TIM6_Init();
/* USER CODE BEGIN 2 */
printf("来啦老弟\n");
data = (unsigned int)GPIOB;//48000400
printf("%0x\n",data);
data = (unsigned int)&GPIOB->ODR;//48000414
printf("%0x\n",data);
data = (unsigned int)&GPIOB->BSRR;//48000418
printf("%0x\n",data);
GPIOxBSRR=0x48000418;
p1=(uint32_t *)(GPIOxBSRR);
data = (unsigned int)&GPIOB->BRR;//48000428
printf("%0x\n",data);
GPIOxBRR=0x48000428;
p2=(uint32_t *)(GPIOxBRR);
//data = 0x42000000 + (0X10C00+20)*32 + 4*11;
//printf("%0x\n",data);//422182ac
//p=(uint32_t *)(GPIOxBSRR);
//*p=0;
//p = (uint32_t *)(0x422182ac);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin,GPIO_PIN_SET);//亮
//*p=0;
*p1=((uint16_t)0x0800);//不亮-------不能写0 1 要写库函数那样的
HAL_Delay(500);
//HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin,GPIO_PIN_RESET);//亮
//*p=1;
//printf("%x#",*p);
*p2=((uint16_t)0x0800);//亮
HAL_Delay(500);
// IO_Test();
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSE;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
Error_Handler();
}
/**Configure the main internal regulator output voltage
*/
if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
void IO_Test(void)
{
static uint8_t i=0;
HAL_Delay(100);
HAL_GPIO_WritePin(BEEP_GPIO_Port, BEEP_Pin,GPIO_PIN_SET);//叫
HAL_Delay(100);
HAL_GPIO_WritePin(BEEP_GPIO_Port, BEEP_Pin,GPIO_PIN_RESET);//不叫
HAL_Delay(100);
HAL_GPIO_WritePin(RELAY_GPIO_Port, RELAY_Pin,GPIO_PIN_RESET);
HAL_Delay(100);
HAL_GPIO_WritePin(RELAY_GPIO_Port, RELAY_Pin,GPIO_PIN_SET);
HAL_Delay(100);
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin,GPIO_PIN_RESET);//不亮
HAL_Delay(100);
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin,GPIO_PIN_SET);//亮
HAL_Delay(100);
HAL_UART_Transmit(&huart1, &i, 1, 0xFFFF);//发送u8数组
i=(i+1)%6;/*0---5*/
HAL_Delay(100);
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
/* USER CODE END Error_Handler_Debug */
}
#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(char *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/