[STM32]：基于X-CUBE-AI的模型推理-Toy模板网

这篇具有很好参考价值的文章主要介绍了[STM32]：基于X-CUBE-AI的模型推理。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

基于X-CUBE-AI的模型推理

本文所使用的版本如下：

X-CUBE-AI：8.1.0
STM32CUBEMX：6.7.0

基于CUBEMX导出模型

首先需要再软件包选中X-CUBE-AI:
xcube.ai,STM32,stm32,人工智能,单片机
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byte
AI_ALIGNED(32)
static ai_float out_data[AI_NETWORK_OUT_1_SIZE]; //这里也是改为size
ai_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]);
  }

xcube.ai,STM32,stm32,人工智能,单片机
和我们上位机的结果保持一致
文章来源地址https://www.toymoban.com/news/detail-861473.html

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 */