Using SPIFFS with the ESP32 board is especially useful to: At the time of writing this post, SPIFFS doesn’t support directories, so everything is saved on a flat structure. You can read, write, close, and delete files. SPIFFS lets you access the flash memory like you would do in a normal filesystem in your computer, but simpler and more limited. Uploading Files using the Filesystem Uploader.

Installing the Arduino ESP32 Filesystem Uploader.ESP32 with VS Code and PlatformIO: Upload Files to Filesystem (SPIFFS).If you’re using VS Code with the PlatformIO extension, read the following tutorial instead: See Partition Offset for more detail.Note: if you have an ESP8266 board, read: Install ESP8266 NodeMCU LittleFS Filesystem Uploader in Arduino IDE.Īt the moment, this is not compatible with Arduino 2.0. In Maskrom Mode, you must add 0x2000 to the sector offset of the partition in parameter.txt.

You can skip the partition flashing by checking off the checkbox in front of the address cell. You can add multiple partitions to flash by repeating step 6. Keep the first line of the table unchanged.ĭelete all others unused rows by selecting “Delete Item” from the right-click popup menu.Īdd partition image to flash by selection “Add Item” from the right-click popup menu.įill in the address with the sector offset (plus 0x2000 if in Maskrom Mode) of partition in parameter.txt file.Ĭlick the right blank cell to browse to the Partition Image file. To flash Partition Image to the eMMC using, follow the steps below:įorce the device into Rockusb Mode or Maskrom Mode. Wait about 1 seconds before releasing the metal tweezers. Plug in the micro USB cable to the board to power on. Use a male to male USB cable to connect your host PC and USB OTG port of the board:įind the reserved eMMC CLK and GND pads on the board, as shown below:Ĭonnect the eMMC CLK and GND pads with metal tweezers and keep holding steadily. Install the eMMC and pull out the SD card. Pull all the USB cables (including micro USB cable and male to male USB cable) out of the board, to keep the board power off. Metal tweezers to connect eMMC clock pin to ground. Male to male USB cable to connect host PC and board. Micro USB cable to connect power adapter and board. It involves hardware operation to force into MaskRom Mode, which has certain risk and should be carried out VERY CAREFULLY. The CPU will execute a small ROM code, waiting for the host to upload via USB a small DDR blob to initialize the DDR memory, and later a full bootloader to handle further firmware upgrading. Then no valid IDB (IDentity Block) will be found in the eMMC. If anyone of the following conditions is met when the board powers on:ĮMMC read data failed by connecting eMMC data/clock pin to ground.

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