Pysense looses connection to wipy - wipy reset



  • Hi folks,

    i have a Pysense board updated to 0.0.7 firmware. The corresponding wipy runs on 1.10.0.b1. After some seconds (sometimes 3, sometimes 5 or even 7 heartbeats of the wipy (blue led)) the wipy stops working. Also the (for short time enabled) connection over the serial port fails and i can only reset the wipy. Then it starts over again. some heartbeats and then failure. The serial port shows me that after the reset everything seems to be ok:

    rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
    ets Jun 8 2016 00:22:57

    rst:0x10 (RTCWDT_RTC_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
    configsip: 0, SPIWP:0xee
    clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
    mode:DIO, clock div:1
    load:0x3fff9028,len:8
    load:0x3fff9030,len:1076
    load:0x4009fa00,len:0
    ho 12 tail 0 room 4
    load:0x4009fa00,len:15344
    entry 0x400a070c
    MicroPython v1.8.6-839-g536c958c on 2017-11-15; WiPy with ESP32
    Type "help()" for more information.

    Then I am able to use the REPL (i.e. 2+2 >>>4 ...) for some seconds and after that the wipy stops and i have no connection any more. Reset starts the process over again, but it only works for some seconds.

    For me it seems to be a hardware problem (firmware 0.0.4 same problem - different wipy, same problem - different computer, same problem). The used wipy runs perfectly with an usual expansion board.

    I would appreciate if anyone can give me a hint what causes the probelm and how to fix it?!

    Thanks in advance and greetings

    Andreas


  • administrators

    Can you please first try another firmware update (we have released 1.10.2.b1).

    If that doesn't help please try to format the internal flash: import os; os.mkfs('/flash')

    If that still doesn't help please email support@pycom.io



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