FiPy Crashing on boot.



  • Hey all, I have a FiPy that started crashing and core dumping on boot. I tried re-flashing stable firmware 1.8r1 and the issue is not resolved. Currently there's nothing connected to the module except a USB to UART adapter. Any help is appreciated. Let me know if there's anything else I can provide in order to help resolve this.

    The core dumps are below:

    onnecting on /dev/tty.usbserial-A9048DSZ...
    ets Jun  8 2016 00:22:57
    
    rst:0x1 (POWERON_RESET),boot:0x13 Guru Meditation Error: Core  1 panic'ed (IllegalInstruction)
    . Exception was unhandled.
    Register dump:
    PC      : 0x4009945f  PS      : 0x00050033  A0      : 0x3ffd6830  A1      : 0x3ffd67c0
    A2      : 0x3ffd6830  A3      : 0x00000000  A4      : 0x4008d837  A5      : 0x3ffd72d0
    A6      : 0x3ffc4fe4  A7      : 0x00050023  A8      : 0x00000000  A9      : 0x3ffd692c
    A10     : 0x00000001  A11     : 0x00000001  A12     : 0x8008c14c  A13     : 0x4008d874
    A14     : 0x00000004  A15     : 0x00060024  SAR     : 0x0000001f  EXCCAUSE: 0x00000000
    EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000
    
    Backtrace: 0x4009945f:0x3ffd67c0 0x3ffd682d:0x00000001
    
    ================= CORE DUMP START =================
    RC4AAA0AAABsAQAA
    WNj7PzDU+z9Q2Ps/
    MNT7P/DX+z/r6rd7dFL8P3RS/D9Y2Ps/bFL8PwIAAADowfs/6MH7P1jY+z8AAAAA
    FwAAAFTI+z93aWZpAP5wHygr+WtCVNQAAAAAAFDY+z8AAAAAIQAGABcAAAACAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAID/nA==
    MDQIQEeFAEAwBwYAXfoIgPDU+z+ADAAAXMgrDAcAAAABAAAABwAAAAAAAABHhQCA
    4NT7Px/RKwwBAAAABwAAAD8AAACkQQBAAAAAAAcAAAAAAPk/AAAAAJAjAECfIwBA
    AAAAACk2CEA/AAAAaNcIQAAA+T8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAcAAAA/AAAApEEAQAAAAAAR/giAENX7P0AAAAAYnfw/
    BQAAAAMAAAAAAAAACwAAAFUACYAw1fs/cAkAAAAAAAAAAAAAXNX7PwD///9c1fs/
    lA8JgFDV+z8Ynfw/VQAAAEz6CEBf1fs/GJ38PwAAAABWEgmAkNX7PwIAAAAEAAAA
    aIkwAACAAABJSwAAMIiIaIkAAAAAAAAAAAAAAAAAAABgCQAAEAAAAFwAAAAQAAAA
    K0kJgBDW+z9sRABAAACAAAAAAAAAAAAAAAAAAAAAAACkQQBAsNb7PwEAAABpbwAA
    M8wYgIDW+z8ukfw/DAAAAKRBAEAsJT8zMXI1M1xcXFxcXFxcXFxcXFxcXFxcXFxc
    pEEAQBDW+z9UAAAA6DkIQAgAAAAM3fw/xOD6PwAAAACkBRWAQNb7PwgAAAAUnfw/
    AAEAAQABAAH+AAAAhACUP9Td/D/g////8P///wIAAABIBxWA8Nb7P20GQj8CAAAA
    FjgIgHDW+z/IuPw/AQAAAAEABQkGBQMGBQQGBAUAAAAABQkGBQMGBQAAAAAAAAAA
    /Pz+8PDw4ODgGBgYTkhCPDg0AAEBAgIDBAUAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AgAAAB6d/D8M3fw/uFP7P+r5EYAQ1/s/uFP7PwIAAAC4U/s/zLj8P8i4/D8AAAAA
    X/oRgDDX+z8AAAAAoI38PwIRAAABAAAA3PpBPwEAAAAyAxKAYNf7PwAAAADA1/w/
    MgMSgGDX+z8AAAAAwNf8PyANBgDI1/s/CgAAAIQAlD9RKBOAkNf7P4QAlD8Y+hFA
    AAAAALDX+z+Q4fw/UJ/8PwAAAADEkkE//gAAAAAAAAAAAAAAsNf7P5Dh/D9Qn/w/
    WNj7PwEAAAD+AAAAAQAAAAAAAADw1/s/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    CgAAAIQAlD8AAAAAAAAAABoAAADwAhJAUKP8PwAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAD81/s/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    9HX9P5CI/T+Iiv0/
    kIj9PyCK/T99AAAAcFH8P3BR/D/0df0/aFH8Pw8AAADAf/0/wH/9P/R1/T8AAAAA
    CgAAAIyA/T9UbXIgU3ZjAG3mxik1ImsAAAAAAIiK/T8AAAAAIQAGAAoAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAALi/Ig==
    MDQIQPC/AEAwCQYAjsMIgFCJ/T8AAAAAIwkGACAJBgAogP0/oPb9PwAAAAD//z+z
    /gAAAAEAAAAg1vs/CNb7P7DW+z8CAAAAaW8AACAAAAAwNAhA8L8AQGyxCUCasQlA
    AAAAACk2CECw1vs/aNcIQDCy+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAADA0CEC51QhAMAkGAAAAAAB4twiAYIn9P+B//T/Aif0/
    hdQIgICJ/T+Uf/0/AAAAAAEAAAABAAAA/gAAAAAAAABL1giAwIn9P6D2/T8AAAAA
    AAAAAAAAAABssQlAmrEJQAAAAAAAAAAAAAAAAGjXCEDgf/0/AAAAAAoAAAAAAAAA
    AAAAAPCJ/T+g9v0/AQAAAAAAAAB/AAAAoPb9PwAAAAB/AAAAAAAAAAAAAACkUvw/
    AAAAACCK/T8AAAAAAAAAAAAAAAB+AAAAoPb9PwAAAAAAAAAApFL8P5xS/D9+AAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAALIr9PwAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    LGn9PwBn/T8kaf0/
    wGf9P8Bo/T+MBAAADFH8PwxR/D8saf0/BFH8PxQAAAAAAAAAAAAAACxp/T8AAAAA
    BQAAAChh/T9TZXJ2ZXJzAAAAAAAAAAAAAQAAACRp/T8AAAAAIQAGAAUAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
    /gAAAF+UCUAzAAUAMGj9P8Bn/T8waP0/AAAAADfYCEDQcv0/5E/8PyMABQAAAAAA
    LGn9PwEAAAABAAAATMEIgHTYCEAEAAAAJAAGAB8AAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAEzBCIB02AhA1DMIQCMABQAAAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAADA0CECeFQhAMA0GAHDICIBgaP0/AQAAAHsAAAAsaf0/
    MDQIQHDICEAwAQYA79MNgIBo/T+MBAAAmFL8PwQZ/D8BAAAAAAD/AAAAAP9wyAiA
    YGj9PwEAAACMBAAALGn9PwEAAAD+AAAAUP/6PwAAAADQkPo/AAAAAM21CUDjtQlA
    +v///yk2CEABAAAAaNcIQNCQ+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAoGj9PwAAAAABAAAA
    BBn8PwEAAAAAAP8AAAAA/wAAAADAaP0/AAAAAAAAAAAAAAAAAQAAAFJY/D8AAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAzGj9PwAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAA=
    hHT9PwBz/T98dP0/
    AHP9PxB0/T92p6SMqFD8Pxhv/T+EdP0/oFD8PxkAAADGMgqcAgxMuYR0/T8AAAAA
    AAAAAIBw/T9JRExFADDkXgfthZx1U7YAAQAAAHx0/T8AAAAAIQAGAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAL1LSQ==
    MDQIQLgEFUAwAQYAAMkIgMBz/T8gAAAAAQAAACAAAACEuPw/mFL8PzxQ/D/AuPw/
    sHP9PwAAAAAjAAYAIAAGAICM/T+4GPw/IAAGAAAAAAAAAAAAKTYIQAAAAAAAAAAA
    AAAAACk2CECAjP0/aNcIQCCc+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAPfICIDAc/0/BBn8P5RS/D8AAAAA4HP9PwAAAAABAAAA
    AAAAAAQZ/D+YUvw/PFD8PwAAAAAQdP0/AAAAAAAAAAAEGfw/AAAAAAAAAAAAAAAA
    AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABx0/T8AAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
    EG/9P5Bt/T8Ib/0/
    kG39P6Bu/T+QrLz4jHT9P6hQ/D8Qb/0/oFD8PxkAAADipEOxxv64CxBv/T8AAAAA
    AAAAAAxr/T9JRExFAGCkmRBwInW2t6wAAAAAAAhv/T8AAAAAIQAGAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAJ7Szw==
    MDQIQLgEFUAwDQYAAMkIgFBu/T8gAAAAAQAAAAAAAACEuPw/lFL8PzxQ/D+guPw/
    MG79PwAAAABQDwAAAAAAALBl/T+4GPw/IAQGAAoAAACwlvo/AAAAAAAAAAAAAAAA
    AAAAACk2CECwZf0/aNcIQLCW+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAcG79PwAAAAAAAAAA
    AAAAAIS4/D+UUvw/PFD8PwAAAACgbv0/AAAAAAAAAAAEGfw/AAAAAAAAAAAAAAAA
    AQAAAAAAAAAEAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAKxu/T8AAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
    dHf9P0Bf/T8gYf0/
    QF/9P8Bg/T+5BAAAlFD8P5RQ/D90d/0/jFD8PwcAAAAkwv0/JML9P3R3/T8cwv0/
    EgAAACRT/T90aVQAdACAjipjtvNEWssA////fyBh/T8AAAAAIQAGABIAAAABAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMKQcw==
    MDQIQCi7CEAwCQYA0cEWgABg/T/4wf0/kGD9P0TC/T8AAAAATML9PwAAAAAouwiA
    4F/9PwEAAABjAAAAmFL8PwEAAAAEGfw/AAAAAAAAAAAAAAAAAAAAAGyxCUCasQlA
    /////yk2CEABAAAAaNcIQNCI+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAABBg/T/wX/0/DAAAAATB/D89JRaAQGD9P5S7/D+QYP0/
    AAAAAFYEAAAAAAAAAAAAAGMAAABQYP0/BgAAAATB/D9IJRaABgAAAAAAAAD0OQhA
    e68VgHBg/T+Uu/w/kGD9P9qvFYBwYP0/BMH8P/ABvD9jAAAAVgQAAAQZ/D8AAAAA
    AAAAAJBg/T+QzBVAAAAAADDC/D8IJBZAAAAAAJRS/D8AAAAAwGD9PwAAAAAAAAAA
    hACUPwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAADMYP0/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    tFH9PyBQ/T+sUf0/
    IFD9P0BR/T/+1ivz7Hj9P5xG/T+0Uf0/HFD8PwEAAAAQf/0/EH/9P7RR/T8If/0/
    GAAAALBN/T9pcGMxALHraLi3vCvBubgAAQAAAKxR/T8AAAAAIQAGABgAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAALpcPQ==
    MDQIQCi7CEAwAAYAaB4IgOBQ/T/kfv0/AAAAADB//T8AAAAA5H79PwAAAAAouwiA
    wFD9PwEAAAD/////mFL8PwEAAAAEGfw/IAMGAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAACk2CEABAAAAaNcIQFB5+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAJhS/D8BAAAABBn8PyADBgAAAAAAIFH9P3xP/D8AAAAA
    AAAAAG0AAAAAAAAAIAMGAP////8AAAAAfE/8P2hP/D+Afv0/AAAAAAEAAAAAAAAA
    AAAAAEBR/T8AAAAAAAAAAHhcCEABAAAAAAAAAAAAAADNEwiAgH3+PwEAAAAAAAAA
    AAAAAAAAAABMUf0/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAA
    5Hj9P6DU/T9U1v0/
    oNT9P/DV/T+Z9hUFSEz9P7xR/T/keP0/HFD8PwUAAAAsxP0/LMT9P+R4/T8kxP0/
    FAAAAFjK/T9ldmVudFRhc2sAz/iqdOcAAAAAAFTW/T8AAAAAIQAGABQAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADBBYQ==
    MDQIQCi7CEAwAAYA3AMVgGDV/T8AxP0/oNX9P0zE/T8AAAAAVMT9PwAAAAAouwiA
    QNX9PwAAAAD/////lFL8PwAAAAAEGfw/IAwGAAAAAAClpaWlpaWlpQAAAAAAAAAA
    AAAAACk2CEAAAAAAaNcIQAD++j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAPDV/T8AAAAAAAAAAAAAAAAAAAAAoNX9Pzy4/D8AAAAA
    AAAAAG4AAAAAAAAAAAAAAP////8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAPDV/T8AAAAAAAAAAAD++j8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAD81f0/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAA==
    QEz9P7BK/T84TP0/
    sEr9P9BL/T9nI7amoFH7P+x4/T9ATP0/HFD8PwEAAAC4fv0/uH79P0BM/T+wfv0/
    GAAAADxI/T9pcGMwAIXkCl/GUQG/BxEAAAAAADhM/T8AAAAAIQAGABgAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMX3YQ==
    MDQIQCi7CEAwBwYAaB4IgHBL/T+Mfv0/AAAAANh+/T8AAAAAjH79PwAAAAAouwiA
    UEv9PwAAAAD/////lFL8PwAAAAAEGfw/AQAAAAAAAAAAAAAAAQAAAAAAAAAAAAAA
    AAAAACk2CEAAAAAAaNcIQOBz+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAP//P7MAAAAAAAAAAAAAAAAAAAAAsEv9P3hP/D8AAAAA
    AAAAAHsAAAAAAAAAAAAAAP////+wS/0/eE/8P2hP/D/Yfv0/AAAAAIx+/T8AAAAA
    AAAAANBL/T8AAAAAAAAAAHhcCEAAAAAAAAAAAAAAAAAxEwiAYDz+PwRQ/D8MUPw/
    AAAAAAAAAADcS/0/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAA=
    mFH7PwBQ+z+QUfs/
    AFD7PzBR+z/WboejYNz9P0hM/T+YUfs/HFD8PwQAAAAIR/s/CEf7P5hR+z8AR/s/
    FQAAAJRH+z9wbVQApRhdUG+TZe7ZUWQA////f5BR+z8AAAAAIQAGABUAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIkcqA==
    MDQIQCi7CEAwAAYA+fsSgMBQ+z/cRvs/AFH7PyhH+z8AAAAAMEf7PwAAAAAouwiA
    oFD7PwAAAAD/////lFL8PwAAAAAEGfw/AAAAAAAAAAClpaWlpaWlpQAAAAAAAAAA
    AAAAACk2CEAAAAAAaNcIQEB5+D8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFH7PwCe/D9cqUE/
    AAAAAHsAAAAAAAAAAAAAAP////8AAAAAAAAAAAAAAABAefg/AAAAAAAAAAAAAAAA
    AAAAADBR+z8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA8n/w/AJ78PywBAAAAAAAg
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPFH7PwAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAA==
    WNz9P7Dz/T/E9f0/
    sPP9P2D1/T/jyKU0JFT8P6BR+z9Y3P0/HFD8Pw4AAACI1v0/iNb9P1jc/T+A1v0/
    CwAAAMjd/T9JUlFzAPWtyQ46E4m72T8AAQAAAMT1/T8AAAAAIQAGAAsAAAAAAAAA
    AAAAAPz0/T8AAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAhT/Iw==
    MDQIQCi7CEAwBQYAa4kOgHD0/T9c1v0/EPX9P6jW/T8AAAAAsNb9PwAAAAAouwiA
    UPT9PwEAAAD/////mFL8PwEAAAAEGfw/AAAAAAAAAABwHfs/AAAAAAAAAAAAAAAA
    AAAAACk2CEABAAAAaNcIQHAd+z8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAB1AAAApaWlpaWlpaXg1w2AsPT9P5Be/D8Q9f0/
    AAAAAHsAAAClpaWlpaWlpf////+w9P0/bGH8PxD1/T8AAAAAAQAAAIRe/D8cNPw/
    AAAAAED1/T+EXvw/AAAAAGD1/T8AAAAAAAAAAAAAAAAAAAAAhF78PwAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIYPw/
    CGD8PwAAAAAQ9f0/ABQAAHAd+z8AAAAAAAAAAAAAAAAIYPw/AAAAAAoAAAD///9/
    AAAAAGD1/T8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAABs9f0/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAA==
    HFT8P7C8/T/IwP0/
    sLz9P2DA/T8AAAAAJFD8P2Dc/T8cVPw/HFD8PxQAAAA0U/s/NFP7PxxU/D8sU/s/
    BQAAAMyQ/T9NaWNyb1B5AAAAAAAAAAAAAQAAAMjA/T8AAAAAIQAGAAUAAAABAAAA
    AAAAAMRf/D8AAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgAAAA==
    MDQIQCi7CEAwAQYAHAQSgHC9/T8IU/s/AAAAAFRT+z8AAAAACFP7PwAAAAAouwiA
    UL39PwEAAAD/////mFL8PwEAAAAEGfw/AAAAABAAAAD/////AAAAAGyxCUCasQlA
    /////yk2CEABAAAAaNcIQHDo+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAHd/EYCwvf0/hACUPwEAAAB3fxGAsL39P4QAlD+cjfw/
    AAAAAH8EAAAAFAAAABgAAP////8AAAAAAAG8PwAAAAAKAAAAlOH8PwMAAAAAAAAA
    gkUOgNC9/T+wjPw/hACUPwAAAACEAbw/MAAAAAAAAADQ0A2AAL79PwAAAAChXPw/
    0NANgAC+/T8CAAAAkx1AP7SM/D8cVPw/AAD/AAAAAP8AAAAAAL/9PxC//T+ov/0/
    ZmlweS13bGFuLTU2OTAAAAAAAAAAAAAAAAAAAAAAAAB3d3cucHljb20uaW8AAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    DgYAEAMAAAAABGQAb3RhXzAAAAAAAAAA/AMVQJTPGEC0zhhAKNUYQCzWGEAFAAAA
    CgAAAAEAAAAAAAAAIAAAAAEAAAABAAAAAQAAAAAAAAAGAAAABgAAAE8/Lx8BAAAA
    AwAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACdHUA/bGH8PwYAAAAsXPw/
    AAAAAGDA/T8AAAAAAAAAAAEAAAAAAAAApaWlpaWlpaUA////////////////////
    ////////////////////////////////////////////////////////////////
    /6WlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWl
    paWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaUwNAhAMM8NQAD/////////
    ////MzU0MzQ2MDkxNzA1NzYz/////////wAAAAAAAAAAAAAAAQAAAAAAAAD/////
    AAAAAP/////////////////////FQhOBAAAAADIAAAACAQAAAAAAAAAAAAAAAAAA
    AAAZAAC//T8AAAAAAAAAAAAAKAAAAAAAAQAAANC//T8AAAAAAAAAAAAAAAAAAAAA
    AAAAANBV/D8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGzA/T8AAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
    lEb9PwBF/T+MRv0/
    AEX9PyBG/T8U9CqRvFH9PyRQ/D+URv0/HFD8PwMAAAD0fP0/9Hz9P5RG/T/sfP0/
    FgAAAJA6/T9lc3BfdGltZXIAliBIKgEAAAAAAIxG/T8AAAAAIQAGABYAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAke/0/jHv9P/R7/T8AAAAAAAAAAAEAAAAAAAAA
    l1pAPwAAAABMuQlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAG0/Zw==
    MDQIQCi7CEAwAAYA3ScNgMBF/T/IfP0/AAAAABR9/T8AAAAAyHz9PwAAAAAouwiA
    oEX9PwAAAAD/////lFL8PwAAAAAEGfw/IAAGAAAAAAClpaWlpaWlpQAAAAAAAAAA
    AAAAACk2CEAAAAAAaNcIQDBu+j8AAAAAAAAAAAAAAAD//z+zAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEb9PyRP/D8AAAAA
    AAAAAAAAAAAAAAAAAAAAAP////8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAACBG/T8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAsRv0/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAA
    ================= CORE DUMP END =================
    Rebooting...
    ets Jun  8 2016 00:22:57
    
    rst:0xc (SW_CPU_RESET),boot:0x13 (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:0x3fff8028,len:8
    load:0x3fff8030,len:1728
    load:0x4009fa00,len:0
    load:0x4009fa00,len:14584
    entry 0x400a059c
    Guru Meditation Error: Core  0 panic'ed (IllegalInstruction)
    . Exception was unhandled.
    Register dump:
    PC      : 0x400d2ea0  PS      : 0x00060d30  A0      : 0x800d2f20  A1      : 0x3ffe3bb0
    A2      : 0x00000039  A3      : 0x00000c0e  A4      : 0x00000002  A5      : 0x3ffc4f5c
    A6      : 0x00000000  A7      : 0x3ffd4810  A8      : 0x800d2e24  A9      : 0x00000000
    A10     : 0xfffffffb  A11     : 0x3ffc4f5c  A12     : 0x00000008  A13     : 0x3ffd4810
    A14     : 0x00000001  A15     : 0x3ffe3bb0  SAR     : 0x0000001e  EXCCAUSE: 0x00000000
    EXCVADDR: 0x00000000  LBEG    : 0x4009b350  LEND    : 0x4009b35b  LCOUNT  : 0xffffffff
    
    Backtrace: 0x400d2ea0:0x3ffe3bb0 0x400d2f1d:0x3ffe3c10 0x400d293c:0x3ffe3c40 0x400d290b:0x3ffe3c60 0x400812c7:0x3ffe3c90 0x40081505:0x3ffe3cc0 0x400a0548:0x3ffe3ce0 0x400a066d:0x3ffe3e70 0x40007c31:0x3ffe3eb0 0x4000073d:0x3ffe3f20
    
    ================= CORE DUMP START =================
    DAAAAAAAAABsAQAA
    ================= CORE DUMP END =================
    


  • It seems that the FTDI chip I was using started to brown out. I switched to external power with a DC supply and everything is back to normal. I should've tried that first. I didn't even think of it since for the first couple of weeks the FTDI chip had no issues supplying sufficient power. Regardless, thank you very much for your help @robert-hh



  • @robert-hh The top dump happens first, then the bottom dump. The only difference between them is the last line.

    user code done
    

    vs

    E (404) esp_image: Checksum failed. Calculated 0x54 read 0x7c
    

    Clarification: Every dump I've posted is from a different attempt to boot into micropython, usually after pressing the reset button or powering up.



  • @smaug That's strange. What's the difference between the two dumps?



  • @robert-hh Thank you for that. I've erased flash with esptool.py and then uploaded v1.18r1 using Pycom's software. The device still cannot boot into micropython :(. UART messages below:

    ets Jun  8 2016 00:22:57
    
    rst:0x1 (POWERON_RESET),boot:0x13 (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:0x3fff8028,len:8
    load:0x3fff8030,len:1728
    load:0x4009fa00,len:0
    load:0x4009fa00,len:14584
    entry 0x400a059c
    user code done
    
    ets Jun  8 2016 00:22:57
    
    rst:0x1 (POWERON_RESET),boot:0x13 (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:0x3fff8028,len:8
    load:0x3fff8030,len:1728
    load:0x4009fa00,len:0
    load:0x4009fa00,len:14584
    entry 0x400a059c
    E (404) esp_image: Checksum failed. Calculated 0x54 read 0x7c
    


  • @robert-hh as usual, you have to specify port and baudrate with -p and -b, the chip with -c, and the operation is erase_flash. The device has to be in bootloader mode, GPIO0 at GND. Like
    esptool.py -p /dev/.... -b921600 --chip esp32 erase_flash
    If in doubt, try esptool.py --help



  • @robert-hh I'll try that. Do you know the correct command arguments for that? I have this command for flashing .bin files to an ESP32 devkitC:

    esptool.py    \
            --chip esp32                                \
            --port /dev/tty.SLAB_USBtoUART              \
            --baud 921600                               \
            --after hard_reset write_flash              \
            -z                                          \
            --flash_mode dio                            \
            --flash_freq 40m                            \
            --flash_size detect                         \
            0x1000 bootloader.bin                       \
            0x8000 partitions_espruino.bin              \
            0x10000 espruino_esp32.bin
    


  • @smaug Try esptool.py for flash erase. Then you're sure to have a clean starting state.



  • @robert-hh Thank you for the reply! Unfortunately that didn't help. I've tried the "full erase" option every time I've reflashed trying to get this resolved. Yes, I am using Pycom's utility to flash.



  • This post is deleted!


  • @smaug I had that when the firmware image was too large for the partition. Even if that's not to be expected when you run 1.18.0.r1, try the option "full erase" at the firmware upload. The re-builds the flash landscape.
    Edit: Are you just using the Pycom firmware or an self made image with many frozen modules?



  • [More info]
    After playing around with the safe boot options I got the error message below. I've gotten the "esp_image: Checksum failed" message a couple of times now with different values for "Calculated" and "read".

    Rebooting...
    ets Jun  8 2016 00:22:57
    
    rst:0xc (SW_CPU_RESET),boot:0x12 (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:0x3fff8028,len:8
    load:0x3fff8030,len:1984
    load:0x4009fa00,len:0
    load:0x4009fa00,len:19112
    entry 0x400a05e4
    E (534) esp_image: Checksum failed. Calculated 0x58 read 0x4d
    

 

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