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sd card mount failed – lilygo t-call sim800L

Q&A Forum › Category: ESP32 › sd card mount failed – lilygo t-call sim800L
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NUR AZLIN AIRUL AZLIN MOHAMED ZOHDI asked 3 years ago

Hi Sara & Rui,
I am trying to get SD CARD installed on the Lilygo T-Call Sim800L but failed.  Looked all over the internet but still could not find a solution. appreciate your help!
 
//SD Card
#include “FS.h”
#include “SD.h”
#include “SPI.h”
#define CS 15
#define SCK 14
#define MOSI 13
#define MISO 12
.
.
/* initialize SD CARD */
SPIClass spi = SPIClass(HSPI);
//spi.begin();
spi.begin(SCK, MISO, MOSI, CS);
if (!SD.begin(CS,spi,80000000)) {
Serial.println(“Card Mount Failed”);
return;
}
 

5 Answers
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Sara Santos Staff answered 3 years ago

Hi.
What is the microSD card module you’re using?
Double-check the wiring.
You can also take a look at our SD card tutorial and see how to assign custom pins: https://randomnerdtutorials.com/esp32-microsd-card-arduino/#sdcardcustompins
 
Regards,
Sara

0 Vote Up Vote Down
NUR AZLIN AIRUL AZLIN MOHAMED ZOHDI answered 3 years ago

found the culprits –

  1. GPIO12
  2. SD.begin(CS,spi,80000000)

Now, MISO is assigned to GPIO2 and I remove the bus frequency. it works just fine so far.
//SD Card
#include “FS.h”
#include “SD.h”
#include “SPI.h”
#define CS 15
#define SCK 14
#define MOSI 13
#define MISO 2
SPIClass spi = SPIClass(HSPI);
/* initialize SD CARD */
spi.begin(SCK, MISO, MOSI, CS);
if (!SD.begin(CS,spi)) {
    Serial.println(“Card Mount Failed”);
return;
}
 
thanks. 
cheers!!!

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NUR AZLIN AIRUL AZLIN MOHAMED ZOHDI answered 3 years ago

test result…
19:01:25.001 -> Welcome…
19:01:25.001 -> wait 3sec !!!
19:01:25.001 ->
19:01:29.117 -> SD Card Type: SDHC
19:01:29.117 -> SD Card Size: 29819MB
19:01:29.117 -> Checking for locally stored non-schedule wakeup(s)
19:01:29.257 -> Checking for non-schedule wake up
19:01:29.257 -> local inbox empty – new schedule not set.
19:01:29.257 ->
19:01:29.257 ->
19:01:29.257 -> Boot count : 1
19:01:29.257 -> System is online since : 26/10/2021 19:01:28
19:01:29.257 -> RTC time at wake up : 26/10/2021 19:01:28 (1635274888)
19:01:29.257 -> Millis() entering setup : 877
19:01:29.257 -> System time at wake up : 5
19:01:29.257 -> Wakeup by other cause(s) : 0

0 Vote Up Vote Down
Sara Santos Staff answered 3 years ago

Great!
I’ll mark this issue as resolved.
Regards,
Sara

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NUR AZLIN AIRUL AZLIN MOHAMED ZOHDI answered 3 years ago

Sure. Thanks.
Hopefully, these will help others in the future should they encounter the same issue.