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igrr / mkspiffs

Tool to build and unpack SPIFFS images
MIT License
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ESP8266 can successfully mount spiffs and open the files that spiffs updates, but the read file fails, possix read() returns -1 #70

Closed EaonL closed 4 years ago

EaonL commented 4 years ago

git clone https://github.com/igrr/mkspiffs.git cd mkspiffs git submodule update --init make dist BUILD_CONFIG_NAME="-esp-idf" CPPFLAGS="-DSPIFFS_OBJ_META_LEN=4" ./mkspiffs/mkspiffs -c spiffs_py/spiffs_root/ -b 4096 -p 256 -s 0x200000 spiffs.bin

uodate the file system use esptools.py: python esptool.py --chip esp8266 --port /dev/ttyUSB0 --baud 115200 write_flash -z 0x90000 spiffs.bin

and then,uart print: example: Initializing SPIFFS example: Partition size: total: 1920401, used: 2761 example: Reading file SPIFFS: Failed to update mtime (-10021) example: Open the file success, fd: [3] example: Read from ret: [Bug: I read 20 bytes of file, and read() return: -1] example: Read from file: [Bug:Here I want to print some text of file,but read_buffer is NULL...] example: SPIFFS unmounted

EaonL commented 4 years ago

The root cause of this problem should be the inconsistency of the SPIFFS_ALIGNED_OBJECT_INDEX_TABLES configured by the mkffs tool and the SDK configuration. The SDK configures SPIFFS_ALIGNED_OBJECT_INDEX_TABLES to 4.

make dist CPPFLAGS=“-DSPIFFS_OBJ_META_LEN=4 -DSPIFFS_ALIGNED_OBJECT_INDEX_TABLES=4" BUILD_CONFIG_NAME=”-esp-8266”

enjoy...