Pysense looses connection to wipy - wipy reset

[Andreas B.]

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

[Xykon]

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