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124 questions
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I am trying to implement DFU(with USB&BLE) and USB Mass Storage with FAT FS filesystems on external QSPI flash. I am getting the following build errors- with SDK version 2.9.0 without mcuboot ...
Swetha Macherla's user avatar
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I am building an IMU as a school project. This required integrating the Fusion(Madgwick) library to get roll, pitch and yaw from acceleration and gyroscope values from MPU6050. These values are first ...
Aaditya's user avatar
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1 answer
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I have been sitting on this problem for a couple of days where I have been trying to use f_mount on a 8GB SD card (I formatted it to FAT32 and to a sector size of 4096.) I am also copying a very ...
Nxyoutou's user avatar
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I am using stm32L4 microcontroller and I have connected my board with an external flash (AT45DB041E), which I have successfully managed to communicate with the it using the SPI peripheral. All I want ...
ngrigoriadis's user avatar
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I would like to get free memory on USB drive (64GB, FAT32) with FatFs library. Here is part of my code: DWORD fre_clust, fre_sect; uint64_t free_memory; res_file = f_mount(&fs, "0:", 1);...
JO95's user avatar
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I use LPC54616 to write data on SD Card (FATFS library). The data that are written to SD card are generated in timer callback (~100B per 1ms). I use buffer (uint8_t buffer[6000];) to store this data ...
JO95's user avatar
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1 answer
218 views

I'm making an audio recorder with a pi pico along with an SD card connected via SPI. Core0 gets samples from the ADC and sends them to core1 which handles SD writing. I've isolated the issue to ...
Jake A's user avatar
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221 views

I have a battery powered EPS32 project that runs a task every 10 minutes for about 10 seconds and is in deep sleep the rest of the time. I am having some problems and need to to do diagnostics by ...
Pygmalion's user avatar
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Need to read preceding file name in directory. When f_readdir function is run , the file name can be read and each time this function is run, it points to next file. I want to read previous file name ...
N N's user avatar
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1 answer
618 views

I have question regarding using variable as file name in f_open function. f_readdir (&mydir, &sdfileinfo) Once f_readdir is run in debug mode, I can see my file name in fname, but I am not ...
N N's user avatar
  • 23
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480 views

I am trying to use Elm-chan's FatFS code (Link); eventually it will be ported to a microcontroller for use writing and reading files to an SD card, but for now I am working on understanding how to ...
David V.'s user avatar
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I am working on STM32F103 aka Bluepill. I will be using my project on human body so it should be compact (i.e. not connected to computer by cables). I have an external interrupt by a chip at every ...
Mr. Black's user avatar
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I'm using the NXP port of FatFS with an SD card using SPI for connection. f_mount returned FR_OK When I call this code to open a file called "skript.txt" in the root folder: printf("...
David Partridge's user avatar
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I have a problem with stm32l4r5 (nucleo-l4r5zi) and reading SD cards. I am using fatfs from https://01001000.xyz/2020-08-09-Tutorial-STM32CubeIDE-SD-card/. SPI and CS pins pulled up, prescaler 256. I ...
Chey's user avatar
  • 25
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173 views

i am using stm32f103xx to modify sdcard functions but fresult returns FR_NO_FILESYSTEM and f_mount returns FR_DISK_ERR and I have no idea what is the error. int main(void) { /* USER CODE BEGIN 1 */ ...
Maip N.'s user avatar
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