Arduino•2d ago

STM32 with SD card hangs :(

I cant get my STM32F4 to get past initializing the SD card, ive got it hooked up to SPI1 and PA4 on a 3V breakout board. It just hangs on SD.begin(). Ive tried SD and SDFat on a 16gb sd card

#include <SPI.h>
#include <SdFat.h>
const int chipSelect = PA4;
SdFat SD;
void setup() {
  Serial.begin(115200);
  while (!Serial);
  delay(1000);
  pinMode(PA4, OUTPUT);
  digitalWrite(PA4, HIGH);

  Serial.println("3");delay(1000);
  Serial.println("2");delay(1000);
  Serial.println("1");delay(1000);
  Serial.println("G");delay(100);
  
  if (!SD.begin(chipSelect)) {
  delay(100);
    Serial.println("SD init failed");
    while(1);
  } 
  delay(100);

}

void loop() {
  // Nothing here
  Serial.println("meow");
}

#include <SPI.h>
#include <SdFat.h>
const int chipSelect = PA4;
SdFat SD;
void setup() {
  Serial.begin(115200);
  while (!Serial);
  delay(1000);
  pinMode(PA4, OUTPUT);
  digitalWrite(PA4, HIGH);

  Serial.println("3");delay(1000);
  Serial.println("2");delay(1000);
  Serial.println("1");delay(1000);
  Serial.println("G");delay(100);
  
  if (!SD.begin(chipSelect)) {
  delay(100);
    Serial.println("SD init failed");
    while(1);
  } 
  delay(100);

}

void loop() {
  // Nothing here
  Serial.println("meow");
}

60 Replies

Demon Lord of the Round Table•2d ago

try initializing sd.Begin outside the if statement and comparing it later

squirrelOP•2d ago

still hangs there :(

Demon Lord of the Round Table•2d ago

check wiring?

squirrelOP•2d ago

douyble checked

Demon Lord of the Round Table•2d ago

have you soldered the header pins to the sd module? also which board

squirrelOP•2d ago

stm32f4 blackpill its wired w dupont i shouldve designed the header to match the layout of the module, but this was before i got this module for other projects

Demon Lord of the Round Table•2d ago

have you checked to see if the sd card has a fat32/fatfs file system? also what ide are you using to program it?

squirrelOP•2d ago

im using ardunio for stm32 yeah, i just formatted it to fat32 weird it was in GPT mode formatted the partition table to MBR nope :P

Demon Lord of the Round Table•2d ago

oh well doesnt the miso,mosi and sclk pins need to be set aswell?

squirrelOP•2d ago

i dont think so? ive never had to do that before theres not much documentation of using SPI either, usually ppl just use SDIO but thats not really possible for me unless i maybe add a second STM32 but like..

Demon Lord of the Round Table•2d ago

https://embetronicx.com/tutorials/microcontrollers/stm32/sd-card-interfacing-with-stm32-using-arduino-ide/ maybe this is a degraded example

squirrelOP•2d ago

letse see ive just been playing with modified examples

Demon Lord of the Round Table•2d ago

btw i havent gotten into stm32,what pcb is the blackpill sitting on?

squirrelOP•2d ago

custom designed board to support IO and stuff for my weather balloon ive got the entire i2c part working

Demon Lord of the Round Table•2d ago

woah

squirrelOP•2d ago

itsj ust the sd card is killing me i dont like SPI anyway its so finicky no matter what youre doing unholy

Demon Lord of the Round Table•2d ago

in so used to absolute beginners asking questions here without reading docs an stuff can like a regular person just launch an air balloon?don't you need permits for that and stuff

squirrelOP•2d ago

if youre doing like really big ones yeah you need permits im under the weight limit best to notify the FAA n stuff tho

Demon Lord of the Round Table•2d ago

i dont see why setting the pa4 to high would do anything,but maybe mosi and rest of the pins are initialized in the header files?ill dowload them and look

squirrelOP•2d ago

especially when near airports grasping for straws really

Demon Lord of the Round Table•2d ago

logically those pins need to be set for recieving and outputting somewhere

squirrelOP•2d ago

the one you sent me doesnt explode when you enable the SDcard fortunately just fails to init lol i might check w multimeter

Demon Lord of the Round Table•2d ago

ye,might just have a faulty module :/

squirrelOP•2d ago

low chance tho i mean its just some resistors capacitors and a sd socket

Demon Lord of the Round Table•2d ago

im assuming youve checked for corrosion

squirrelOP•2d ago

wired properly i dont think thered be corrosion huh it worked

Demon Lord of the Round Table•2d ago

whar why

squirrelOP•2d ago

im not sure? thats scary though what if it fails again i didnt change anything see why i say SPI is unholy

Demon Lord of the Round Table•2d ago

turn it off/unplug it and back in to see if it works again?

squirrelOP•2d ago

maybe?

squirrelOP•2d ago

waow

Demon Lord of the Round Table•2d ago

squirrelOP•2d ago

it wrote to the file

Demon Lord of the Round Table•2d ago

maybe the old binary was in a cache and didnt load the new one i sent(???)

squirrelOP•2d ago

no it was definitely in there at least the new one doesnt hang if it fails like the old one

Demon Lord of the Round Table•2d ago

the hanging was cause of the infinite while loop i remember spitting inside an sd card module like this and it working

squirrelOP•2d ago

yes it got stuck inside SD begin

Demon Lord of the Round Table•2d ago

whats the write speed of the card? from this forum it seems when you try to write multiple times quickly the sd card has to finish writing the first instruction and then the next

squirrelOP•2d ago

honestly i have no idea i was just trying to open it

Demon Lord of the Round Table•2d ago

so if you were spamming the program it mightve caused something similar?? https://community.st.com/t5/stm32-mcus-embedded-software/sdio-multi-block-write-fails-sometimes/td-p/571749

SDIO multi block write fails sometimes

Hi. I have few questions regarding SDIO and SD card write performance. I am using STM32F446 MCU and a simple application using polling SDIO that writes (appends) 32 blocks (16KB) of data to the SD card every 20ms. I do not use filesystem, just writing RAW bytes. Application increases block address o...

squirrelOP•2d ago

whatever happens in the open() function killed it

Demon Lord of the Round Table•2d ago

the cards dead now?

squirrelOP•2d ago

sorry my stupid dialect it caught the STM32 in a loop it couldnt get out of it i guess i mean i have no way to debug it my UART programmers not that fancy

Demon Lord of the Round Table•2d ago

i see.....reformat the card and see if the current thing works?

squirrelOP•2d ago

no its working now

Demon Lord of the Round Table•2d ago

just to be redundant

squirrelOP•2d ago

im integrating it into the flight code

Demon Lord of the Round Table•2d ago

lol

squirrelOP•2d ago

Demon Lord of the Round Table•2d ago

squirrelOP•2d ago

Demon Lord of the Round Table•2d ago

its fun to google my disc name and my posts from here show up

squirrelOP•2d ago

wait what :omori_basil_scared:

Demon Lord of the Round Table•2d ago

I think it scrapes after youve marked the thread as solved and only the help threads(for the most part....)

squirrelOP•2d ago

damn

Demon Lord of the Round Table•2d ago

squirrelOP•2d ago

https://www.answeroverflow.com/m/1283830035358421092

Oscilloscope Online: An online Graph Plotter, A cool alternative to...

Questions related to Oscilloscope Online: An online Graph Plotter, A cool alternative to Arduino IDE's Serial Plotter in Arduino

squirrelOP•2d ago

oscilloscope online?? i love oscilloscopes also ace combat !!! waow this is perfectly relatvent because uh im.. my flight software is called ace combat oscilloscope is the name of the file log .CSV file

Demon Lord of the Round Table•2d ago

FUCKKKKK MY OPSEC IS SHIT!

squirrelOP•2d ago

MY HYPERFIXATION oscilloscopes i have four

Gaming

Programming

STM32 with SD card hangs :(

Did you find this page helpful?