Compiler not identify warnings, and how can I solve them? - warnings

Question

I have 4 warnings the compiler not identify:
link
When I enter to Arm-Math library, all this errors are appear:
link 2
Why the compiler not recognize them?
And the main question, how can I solve those errors?
Arm-Math is official library, it should not make problems...
This is my code:
/* USER CODE BEGIN Header */
/**
******************************************************************************
* #file : main.c
* #brief : Main program body
******************************************************************************
* #attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include <stdint.h>
#define ARM_MATH_CM4
#include "arm_math.h" // for FFT
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
#ifdef __GNUC__
/* With GCC, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
/* 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 ---------------------------------------------------------*/
UART_HandleTypeDef huart2;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART2_UART_Init(void);
/* USER CODE BEGIN PFP */
void startFFT (void);
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* FFT settings */
#define SAMPLES 512 /* 256 real party and 256 imaginary parts */
#define FFT_SIZE SAMPLES / 2 /* FFT size is always the same size as we have samples, so 256 in our case */
/* Global variables */
float32_t Input[SAMPLES];
float32_t Output[FFT_SIZE];
int32_t threshold = 50000;
int32_t neighbor_threshold = 1000;
/* FFT */
arm_cfft_radix4_instance_f32 S; /* ARM CFFT module */
float32_t maxValue; /* Max FFT value is stored here */
uint32_t maxIndex; /* Index in Output array where max value is */
/* USER CODE END 0 */
/**
* #brief The application entry point.
* #retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* UART */
float32_t sine[256] = {1,-0.866025404,0.5,3.06287E-16,-0.5,0.866025404,-1,0.866025404,-0.5,8.57495E-16,0.5,-0.866025404,1,-0.866025404,0.5,6.86051E-15,-0.5,0.866025404,-1,0.866025404,-0.5,3.18506E-15,0.5,-0.866025404,1,-0.866025404,0.5,9.80227E-16,-0.5,0.866025404,-1,0.866025404,-0.5,1.95991E-15,0.5,-0.866025404,1,-0.866025404,0.5,9.3108E-15,-0.5,0.866025404,-1,0.866025404,-0.5,-6.37066E-15,0.5,-0.866025404,1,-0.866025404,0.5,3.43052E-15,-0.5,0.866025404,-1,0.866025404,-0.5,-2.89121E-14,0.5,-0.866025404,1,-0.866025404,0.5,-2.44975E-15,-0.5,0.866025404,-1,0.866025404,-0.5,-2.30318E-14,0.5,-0.866025404,1,-0.866025404,0.5,-8.33003E-15,-0.5,0.866025404,-1,0.866025404,-0.5,-1.71515E-14,0.5,-0.866025404,1,-0.866025404,0.5,1.42114E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-3.9693E-14,0.5,-0.866025404,1,-0.866025404,0.5,-2.00906E-14,-0.5,0.866025404,-1,0.866025404,-0.5,2.30307E-14,0.5,-0.866025404,1,-0.866025404,0.5,3.08725E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-2.79324E-14,0.5,-0.866025404,1,-0.866025404,0.5,2.49923E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-2.20521E-14,0.5,-0.866025404,1,-0.866025404,0.5,1.9112E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-7.30153E-14,0.5,-0.866025404,1,-0.866025404,0.5,1.32317E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-1.02916E-14,0.5,-0.866025404,1,-0.866025404,0.5,6.41949E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-6.12547E-14,0.5,-0.866025404,1,-0.866025404,0.5,1.47115E-15,-0.5,0.866025404,-1,0.866025404,-0.5,5.83124E-14,0.5,-0.866025404,1,-0.866025404,0.5,5.24343E-14,-0.5,0.866025404,-1,0.866025404,-0.5,7.34926E-15,0.5,-0.866025404,1,-0.866025404,0.5,4.6554E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-4.36139E-14,0.5,-0.866025404,1,-0.866025404,0.5,9.75172E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-3.77336E-14,0.5,-0.866025404,1,-0.866025404,0.5,-2.205E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-3.18533E-14,0.5,-0.866025404,1,-0.866025404,0.5,-2.79302E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-2.5973E-14,0.5,-0.866025404,1,-0.866025404,0.5,7.98763E-14,-0.5,0.866025404,-1,0.866025404,-0.5,-2.00928E-14,0.5,-0.866025404,1,-0.866025404,0.5,-3.96908E-14};
for (int32_t i= 0 ; i < SAMPLES ; i+=2)
{
Input[i] = sine [i/2];
Input[i+1] = 0;
}
/* 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_USART2_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
printf("Hello-World \r\n");
HAL_Delay(1500);
startFFT();
printf("6 \r\n");
printf("FFT Max Value: %.2f: \r\n", maxValue);
printf("FFT Max Frequency: %0.2f: \r\n", ((int) maxIndex * 93.75));
HAL_Delay(2000);
printf("FFT Argument: \r\n");
for(int16_t i=0; i<SAMPLES/2; i++)
{
printf("%.2f Hz: %.2f \r\n", (i * 93.75), Output[i]);
HAL_Delay(2000);
}
}
/* 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_MSI;
RCC_OscInitStruct.MSIState = RCC_MSI_ON;
RCC_OscInitStruct.MSICalibrationValue = 0;
RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
RCC_OscInitStruct.PLL.PLLM = 1;
RCC_OscInitStruct.PLL.PLLN = 40;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
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_PLLCLK;
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_4) != HAL_OK)
{
Error_Handler();
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
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();
}
}
/**
* #brief USART2 Initialization Function
* #param None
* #retval None
*/
static void MX_USART2_UART_Init(void)
{
/* USER CODE BEGIN USART2_Init 0 */
/* USER CODE END USART2_Init 0 */
/* USER CODE BEGIN USART2_Init 1 */
/* USER CODE END USART2_Init 1 */
huart2.Instance = USART2;
huart2.Init.BaudRate = 9600;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
huart2.Init.Mode = UART_MODE_TX_RX;
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART2_Init 2 */
/* USER CODE END USART2_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_GPIOA_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
/*Configure GPIO pin : PA5 */
GPIO_InitStruct.Pin = GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the EVAL_COM1 and Loop until the end of transmission */
HAL_UART_Transmit(&huart2, (uint8_t *)&ch, 1, 0xFFFF);
return ch;
}
/* FFT */
void startFFT (void)
{
printf("1 \r\n");
arm_cfft_radix4_init_f32(&S, FFT_SIZE, 0, 1); // Initialize the CFFT/CIFFT module, intFlag = 0, doBitReverse = 1// ################ need to be added to Init in main area in the ANC code ###########
printf("2 \r\n");
arm_cfft_radix4_f32(&S, Input); // Process the data through the CFFT/CIFFT module // ########### Doing FFT on the input, and save it their (?) // print the result of real and imag for checking
printf("3 \r\n");
arm_cmplx_mag_f32(Input, Output, FFT_SIZE); // Process the data through the Complex Magniture Module for calculating the magnitude at each bin
printf("4 \r\n");
arm_max_f32(Output, FFT_SIZE, &maxValue, &maxIndex); // Calculates maxValue and returns corresponding value
printf("5 \r\n");
return;
}
/* 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****/
I tried to use this code in CubeMxIDE and it work fine. but in Keil, it make problems

Answer 1

It looks like your code has successfully compiled. The error/warnings are probably live content-assist warnings from the IDE.