Corrupt WIO Terminal Ardupy Drive

jim_macb · March 23, 2021, 4:53pm

There seems to be an issue with my WIO Terminal in that the Ardupy Drive mounted at / has 60+ directories listed as ‘.’

From the aip repl I run the following:

for name in uos.ilistdir(“.”):
… print(name)
…
…
…

and here are a sample of the 60+ directories:

(‘\x00\x00\x00\x00\x00\x00\x00\x00.\x00\x00\x00’, 16384, 0, 4294967295)
(‘\x00\x00\x00\x00\x00\x00\x00\x00.\x00\x00\x00’, 16384, 0, 4294967295)
(‘\x00\x00\x00\x00\x00\x00\x00\x00.\x00\x00\x00’, 16384, 0, 4294967295)

Surely this isn’t correct?
Can I somehow reformat it back to factory?
The “Hold button 1 + reset” doesn’t work.

My main app is receiving python files, (main.py and version.py), via a UART serial connection and writing them to the drive. This is so I can dynamically upload new code when required when the WIO is out in the field. Unfortunately this writing of these python files causes the VFS to have various issues, one being a growing number of “.” (dot) directories.

I am currently looking at an alternative solution using swap files or subfolders but as this is a critical part of our requirement we may have to move to another product.

Thanks

lakshan · March 24, 2021, 4:29am

Hi @jim_macb,

Could you run this to erase the flash first?

github.com

Seeed-Studio/Seeed_Arduino_SFUD/blob/master/examples/FlashErase/FlashErase.ino

#include <sfud.h>

#define SFUD_DEMO_TEST_BUFFER_SIZE                     1024
static uint8_t sfud_demo_test_buf[SFUD_DEMO_TEST_BUFFER_SIZE];
static void sfud_demo(uint32_t addr, size_t size, uint8_t *data);

#define SERIAL Serial

void setup()
{
    SERIAL.begin(115200);
    while(!SERIAL) {};
    while(!(sfud_init() == SFUD_SUCCESS));
    /* erase test */
    const sfud_flash *flash = sfud_get_device_table() + 0;
    uint32_t addr = 0;
    size_t size = sizeof(sfud_demo_test_buf);
    uint8_t result = sfud_erase(flash, addr, size);
    if (result == SFUD_SUCCESS) {
        SERIAL.println("Erase the flash data finish");

This file has been truncated. show original

You need to have the following 2 libraries:

Then open Arduino IDE, and upload a sample code such as:

void setup() {
}

void loop() {
}

This will get you back to factory.

After that, could you try to install ArduPy-aip and try again?

Best Regards,
Lakshantha