I'm trying to communicate with a SanDisk Ultra 16GB microSD HC card (mounted with this) using a NUCLEOf411RE board, SDIO and FATFS. I've been trying to follow this post as a guideline, and I keep running into an issue in f_mkfs where it constantly returns F_NOT_READY. I've slightly modified the code per some commentors suggestions in the original post, but still haven't had any luck.
/* 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"
#include "fatfs.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "string.h"
#include "stdio.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 ---------------------------------------------------------*/
SD_HandleTypeDef hsd;
DMA_HandleTypeDef hdma_sdio_rx;
DMA_HandleTypeDef hdma_sdio_tx;
UART_HandleTypeDef huart2;
/* USER CODE BEGIN PV */
FRESULT res; /* FatFs function common result code */
uint32_t byteswritten, bytesread; /* File write/read counts */
uint8_t wtext[] = "STM32 FATFS works great!"; /* File write buffer */
uint8_t rtext[_MAX_SS];/* File read buffer */
char res_check[32] = "";
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART2_UART_Init(void);
static void MX_DMA_Init(void);
static void MX_SDIO_SD_Init(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
*/
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_USART2_UART_Init();
MX_DMA_Init();
MX_SDIO_SD_Init();
MX_FATFS_Init();
/* USER CODE BEGIN 2 */
res = f_mount(&SDFatFS, (TCHAR const*)SDPath, 0);
sprintf(res_check, "res = %d\r\n", res);
HAL_UART_Transmit(&huart2, (uint8_t *) res_check, sizeof(res_check), HAL_MAX_DELAY);
if(res != FR_OK)
{
Error_Handler();
}
else
{
res = f_mkfs((TCHAR const*)SDPath, FM_ANY, 0, rtext, sizeof(rtext));
sprintf(res_check, "res = %d\r\n", res);
HAL_UART_Transmit(&huart2, (uint8_t *) res_check, sizeof(res_check), HAL_MAX_DELAY);
if(res != FR_OK)
{
Error_Handler();
}
else
{
res = f_open(&SDFile, "STM32.TXT", FA_CREATE_ALWAYS | FA_WRITE);
//Open file for writing (Create)
if(res != FR_OK)
{
Error_Handler();
}
else
{
//Write to the text file
res = f_write(&SDFile, wtext, strlen((char *)wtext), (void *)&byteswritten);
if((byteswritten == 0) || (res != FR_OK))
{
Error_Handler();
}
else
{
f_close(&SDFile);
}
}
}
}
res = f_mount(&SDFatFS, (TCHAR const*)NULL, 0);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* 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};
/** 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_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
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_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief SDIO Initialization Function
* @PAram None
* @retval None
*/
static void MX_SDIO_SD_Init(void)
{
/* USER CODE BEGIN SDIO_Init 0 */
/* USER CODE END SDIO_Init 0 */
/* USER CODE BEGIN SDIO_Init 1 */
/* USER CODE END SDIO_Init 1 */
hsd.Instance = SDIO;
hsd.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
hsd.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
hsd.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_DISABLE;
hsd.Init.BusWide = SDIO_BUS_WIDE_4B;
hsd.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
hsd.Init.ClockDiv = 12;
/* USER CODE BEGIN SDIO_Init 2 */
/* USER CODE END SDIO_Init 2 */
}
/**
* @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 = 115200;
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;
if (HAL_UART_Init(&huart2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART2_Init 2 */
/* USER CODE END USART2_Init 2 */
}
/**
* Enable DMA controller clock
*/
static void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA2_CLK_ENABLE();
/* DMA interrupt init */
/* DMA2_Stream3_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
/* DMA2_Stream6_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA2_Stream6_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream6_IRQn);
}
/**
* @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_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : B1_Pin */
GPIO_InitStruct.Pin = B1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : PC0 */
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pin : LD2_Pin */
GPIO_InitStruct.Pin = LD2_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LD2_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 */
I inserted the sections with the UART to see if the debugger itself was causing the problems, but I keep getting the same returns. When I did run the debugger, it gets to line 5335 in ff.c and returns from there:
Does anyone have any ideas what might be going on?
This is what I'm seeing in the diskio.c file as I go down the layers in mkfs. Do I need to dive further down or look around in here during the fs_mount function?
edit: I think I forgot to mention (and I feel real *** for this now that I think about it) but I'm pretty sure I'm running version 1.8.0 or thereabouts.
edit again. Okay, I didn't realize how much deeper into the functions you could get here. Just kept clicking step into until I got as deep as I could and you're on the money that the problem is related to SD detection GPIO. It's reading as not present.
The pin assigned is A5 on the Arduino Uno layout and PC0 on STM32 layout (NUCLEO-64 board).
ANOTHER edit:
Okay, so just for the kick in the teeth, I decided to run this AGAIN with the microSD physically removed from the card holder, and NOW the system is registering the detection as present! So when the card is present, the system thinks it isn't, and when it isn't present, the system thinks it is!
FUN!!!
Solution for this particular problem was found in this post: FATFS middleware: invert card detect logic level - STMicroelectronics Community. Basically, my card holder makes things work the opposite way that ST has their code written. Part of me wonders is that's also the cause of my newest problem, but that's getting its own post
