[STM32]：基于X-CUBE-AI的模型推理

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基于X-CUBE-AI的模型推理

本文所使用的版本如下：

X-CUBE-AI：8.1.0STM32CUBEMX：6.7.0

基于CUBEMX导出模型

首先需要再软件包选中X-CUBE-AI:

导入模型进行转换，这里选择STM32Cube.AI Runtime

在底部有RAM与ROM的开销占用：

基于STM32实现模型推理

STM32提供了相关了文档，可以到pack包安装的地方查看这篇文章，我的安装路径如下，每个人的电脑都不一样

file:///D:/IDE/STM32CUBEMX/Repository/Packs/STMicroelectronics/X-CUBE-AI/8.1.0/Documentation/how_to_run_a_model_locally.html

接下来，我们按照文档编写图例代码，本文所使用的模型输入为2048长度的一维浮点数据。

1.引入必要的头文件

#include "stdio.h"#include <stdlib.h>#include <time.h>#include <string.h>#include "network.h"#include "network_data.h"

2.创建模型的输入输出以及句柄

AI_ALIGNED(32)static ai_u8 activations[AI_NETWORK_DATA_ACTIVATIONS_SIZE];AI_ALIGNED(32)static ai_float in_data[AI_NETWORK_IN_1_SIZE]; //这里记得修改为自己的类型，以及长度选择SIZE，不要是byteAI_ALIGNED(32)static ai_float out_data[AI_NETWORK_OUT_1_SIZE]; //这里也是改为sizeai_buffer *ai_input;ai_buffer *ai_output;ai_handle network = AI_HANDLE_NULL;ai_error err;ai_network_report report;

3.创建模型初始化代码

int ai_init(){  const ai_handle acts[] = {activations};  err = ai_network_create_and_init(&network, acts, NULL);  if (err.type != AI_ERROR_NONE)  {    printf("ai init_and_create error\n");    return -1;  }  else  {    printf("ai init success\n");  }  if (ai_network_get_report(network, &report) != true)  {    printf("ai get report error\n");    return -1;  }  printf("Model name      : %s\n", report.model_name);  printf("Model signature : %s\n", report.model_signature);  return 0;}

3.赋值与推理

int ai_run(ai_float *in_data, ai_float *out_data, float *data, int length){  ai_i32 n_batch;  for (int i = 0; i < length; i++)  {    in_data[i] = data[i];  }  ai_input = ai_network_inputs_get(network, NULL);  ai_output = ai_network_outputs_get(network, NULL);  ai_input[0].data = AI_HANDLE_PTR(in_data);  ai_output[0].data = AI_HANDLE_PTR(out_data);  n_batch = ai_network_run(network, &ai_input[0], &ai_output[0]);  if (n_batch != 1)  {    ai_network_get_error(network);    printf("run failed\r\n");    return -1;  };  return 0; // success;}

接下来，我们就可以根据out_data来查看推理结果

  for (int i = 0; i < AI_NETWORK_OUT_1_SIZE; i++)  {    printf("%.2f, ", out_data[i]);  }

和我们上位机的结果保持一致

全部代码

/* USER CODE BEGIN Header *//** ****************************************************************************** * @file           : main.c * @brief          : Main program body ****************************************************************************** * @attention * * Copyright (c) 2024 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* USER CODE END Header *//* Includes ------------------------------------------------------------------*/#include "main.h"/* Private includes ----------------------------------------------------------*//* USER CODE BEGIN Includes */#include "stdio.h"#include <stdlib.h>#include <time.h>#include <string.h>#include "network.h"#include "network_data.h"/* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*//* USER CODE BEGIN PTD *//* 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 ---------------------------------------------------------*/CRC_HandleTypeDef hcrc;I2C_HandleTypeDef hi2c1;UART_HandleTypeDef huart1;/* USER CODE BEGIN PV *//* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/void SystemClock_Config(void);static void MX_GPIO_Init(void);static void MX_CRC_Init(void);static void MX_I2C1_Init(void);static void MX_USART1_UART_Init(void);/* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*//* USER CODE BEGIN 0 */int fputc(int ch, FILE *f){  HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, 0xFFFF);  return ch;}AI_ALIGNED(32)static ai_u8 activations[AI_NETWORK_DATA_ACTIVATIONS_SIZE];AI_ALIGNED(32)static ai_float in_data[AI_NETWORK_IN_1_SIZE];AI_ALIGNED(32)static ai_float out_data[AI_NETWORK_OUT_1_SIZE];ai_buffer *ai_input;ai_buffer *ai_output;ai_handle network = AI_HANDLE_NULL;ai_error err;ai_network_report report;//替换为自己的数据float data[] ={};/** * @brief ai init * * @return int */int ai_init(){  const ai_handle acts[] = {activations};  err = ai_network_create_and_init(&network, acts, NULL);  if (err.type != AI_ERROR_NONE)  {    printf("ai init_and_create error\n");    return -1;  }  else  {    printf("ai init success\n");  }  if (ai_network_get_report(network, &report) != true)  {    printf("ai get report error\n");    return -1;  }  printf("Model name      : %s\n", report.model_name);  printf("Model signature : %s\n", report.model_signature);  return 0;}int ai_run(ai_float *in_data, ai_float *out_data, float *data, int length){  ai_i32 n_batch;  for (int i = 0; i < length; i++)  {    in_data[i] = data[i];  }  ai_input = ai_network_inputs_get(network, NULL);  ai_output = ai_network_outputs_get(network, NULL);  ai_input[0].data = AI_HANDLE_PTR(in_data);  ai_output[0].data = AI_HANDLE_PTR(out_data);  n_batch = ai_network_run(network, &ai_input[0], &ai_output[0]);  if (n_batch != 1)  {    ai_network_get_error(network);    printf("run failed\r\n");    return -1;  };  return 0; // success;}/* USER CODE END 0 *//** * @brief * */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_CRC_Init();  MX_I2C1_Init();  MX_USART1_UART_Init();  /* USER CODE BEGIN 2 */  if (ai_init() != 0)  {    return -1;  }  if (ai_run(in_data, out_data, data, AI_NETWORK_IN_1_SIZE) != 0)  {    return -1;  }  for (int i = 0; i < AI_NETWORK_OUT_1_SIZE; i++)  {    printf("%.2f, ", out_data[i]);  }  /* USER CODE END 2 */  /* Infinite loop */  /* USER CODE BEGIN WHILE */  while (1)  {    /* USER CODE END WHILE */    /* USER CODE BEGIN 3 */    HAL_GPIO_TogglePin(LedHeart_GPIO_Port, LedHeart_Pin);    HAL_Delay(1000);  }  /* USER CODE END 3 */}/** * @brief System Clock Configuration * @retval None */void SystemClock_Config(void){  RCC_OscInitTypeDef RCC_OscInitStruct = {0};  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};  /** Configure the main internal regulator output voltage   */  __HAL_RCC_PWR_CLK_ENABLE();  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);  /** Initializes the RCC Oscillators according to the specified parameters   * in the RCC_OscInitTypeDef structure.   */  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;  RCC_OscInitStruct.HSEState = RCC_HSE_ON;  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;  RCC_OscInitStruct.PLL.PLLM = 4;  RCC_OscInitStruct.PLL.PLLN = 168;  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;  RCC_OscInitStruct.PLL.PLLQ = 4;  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)  {    Error_Handler();  }  /** Initializes the CPU, AHB and APB buses clocks   */  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_DIV4;  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)  {    Error_Handler();  }  /** Enables the Clock Security System   */  HAL_RCC_EnableCSS();}/** * @brief CRC Initialization Function * @param None * @retval None */static void MX_CRC_Init(void){  /* USER CODE BEGIN CRC_Init 0 */  /* USER CODE END CRC_Init 0 */  /* USER CODE BEGIN CRC_Init 1 */  /* USER CODE END CRC_Init 1 */  hcrc.Instance = CRC;  if (HAL_CRC_Init(&hcrc) != HAL_OK)  {    Error_Handler();  }  /* USER CODE BEGIN CRC_Init 2 */  /* USER CODE END CRC_Init 2 */}/** * @brief I2C1 Initialization Function * @param None * @retval None */static void MX_I2C1_Init(void){  /* USER CODE BEGIN I2C1_Init 0 */  /* USER CODE END I2C1_Init 0 */  /* USER CODE BEGIN I2C1_Init 1 */  /* USER CODE END I2C1_Init 1 */  hi2c1.Instance = I2C1;  hi2c1.Init.ClockSpeed = 100000;  hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;  hi2c1.Init.OwnAddress1 = 0;  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;  hi2c1.Init.OwnAddress2 = 0;  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;  if (HAL_I2C_Init(&hi2c1) != HAL_OK)  {    Error_Handler();  }  /* USER CODE BEGIN I2C1_Init 2 */  /* USER CODE END I2C1_Init 2 */}/** * @brief USART1 Initialization Function * @param None * @retval None */static void MX_USART1_UART_Init(void){  /* USER CODE BEGIN USART1_Init 0 */  /* USER CODE END USART1_Init 0 */  /* USER CODE BEGIN USART1_Init 1 */  /* USER CODE END USART1_Init 1 */  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();  }  /* USER CODE BEGIN USART1_Init 2 */  /* USER CODE END USART1_Init 2 */}/** * @brief GPIO Initialization Function * @param None * @retval None */static void MX_GPIO_Init(void){  GPIO_InitTypeDef GPIO_InitStruct = {0};  /* GPIO Ports Clock Enable */  __HAL_RCC_GPIOH_CLK_ENABLE();  __HAL_RCC_GPIOA_CLK_ENABLE();  __HAL_RCC_GPIOD_CLK_ENABLE();  __HAL_RCC_GPIOB_CLK_ENABLE();  /*Configure GPIO pin Output Level */  HAL_GPIO_WritePin(LedHeart_GPIO_Port, LedHeart_Pin, GPIO_PIN_RESET);  /*Configure GPIO pin : LedHeart_Pin */  GPIO_InitStruct.Pin = LedHeart_Pin;  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;  GPIO_InitStruct.Pull = GPIO_NOPULL;  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;  HAL_GPIO_Init(LedHeart_GPIO_Port, &GPIO_InitStruct);}/* USER CODE BEGIN 4 *//* 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 */  __disable_irq();  while (1)  {  }  /* 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(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 /* USE_FULL_ASSERT */

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本文链接：https://www.kjpai.cn/gushi/2024-04-30/163639.html，文章来源：网络cs，作者：亙句，版权归作者所有，如需转载请注明来源和作者，否则将追究法律责任！