ESP32 Forum

Posted: **Fri Dec 21, 2018 9:15 am**

Hi, I was reading zero byte for files created using mkspiffs (https://github.com/igrr/mkspiffs.git)

How I make the file system image

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mkspiffs -d 5 -c res/ -b 4096 -p 256 -s 0xF0000 spiffs.bin

How I flash it

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python esptool.py --chip esp32 --baud 912600 write_flash -z 0x210000 spiffs.bin

How are the partitions

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nvs,      data, nvs,     0x9000,  0x6000,
phy_init, data, phy,     0xf000,  0x1000,
factory,  app,  factory, 0x10000, 2M,
storage,  data, spiffs,  ,        0xF0000,

The size of flash is 4MB. Besides the problem above, I was able to list the file system. And ftell() correctly tells the file's size, which is great than zero. Also, I was able to create new file on the file system using fopen(), and reading the newly created file was no problem. Thanks if someone can point me out what was going wrong.

Posted: **Fri Dec 21, 2018 11:20 am**

Please check this topic: https://www.esp32.com/viewtopic.php?t=6336

https://github.com/igrr/mkspiffs/issues/48

https://github.com/igrr/mkspiffs/blob/m ... figuration

Also please compare the output of mkspiffs --version with your spiffs settings in sdkconfig.

Posted: **Mon Dec 24, 2018 3:17 am**

Thanks. It works now.

ESP32 Forum

can't fread files created using mkspiffs

can't fread files created using mkspiffs

Re: can't fread files created using mkspiffs

Re: can't fread files created using mkspiffs