New firmware release 1.10.1.b1

Xykon

@robert-hh Any chance you can try without assigning a fixed IP?

robert-hh

@daniel I have a serious problem with the new release. Setup:
Plain vanilla pycom image on a LoPy, flash was erased. I have a little script that connects as a STA:

import network
import time
from uos import uname
# setup as a station
wlan = network.WLAN(mode=network.WLAN.STA)
wlan.connect(ssid="my_ap", auth=(network.WLAN.WPA2, "my_passwd"))
for _ in range (200):
    if wlan.isconnected():
        wlan.ifconfig(config=("10.0.0.141", "255.255.255.0", "10.0.0.240",  "10.0.0.240"))
        print(wlan.ifconfig())
        break
    else:
        time.sleep_ms(50)
else:
    print("Could not connect")

and add the line
import connect
to main.py. If I boot, then it may connect, after a few reboots, it somehow locks, in that it does not connect to the AP any more. In that state, if I press Ctrl-D a few times, if get a core dump & Reset. The core dump starts with:

PYB: soft reboot
Guru Meditation Error of type LoadProhibited occurred on core  0. Exception was unhandled.
Register dump:
PC      : 0x40113db8  PS      : 0x00060a30  A0      : 0x8011fd1a  A1      : 0x3ffbd590  
A2      : 0x3ffc9a00  A3      : 0x3ffd609d  A4      : 0x3ffd60c7  A5      : 0x00000000  
A6      : 0x00000000  A7      : 0x00000000  A8      : 0x80113db8  A9      : 0x3ffbd580  
A10     : 0x3ffc9a4f  A11     : 0x00000000  A12     : 0x0000000f  A13     : 0x3ffc9a5e  
A14     : 0x02ac0f00  A15     : 0x00000000  SAR     : 0x00000010  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x000000f1  LBEG    : 0x4009860c  LEND    : 0x40098617  LCOUNT  : 0xffffffff  

Backtrace: 0x40113db8:0x3ffbd590 0x4011fd17:0x3ffbd5c0 0x4011c891:0x3ffbd610 0x4011d436:0x3ffbd690 0x4011dce1:0x3ffbd760 0x40127265:0x3ffbd780 0x40128e1b:0x3ffbd7d0

================= CORE DUMP START =================
QCsAAAsAAABsAQAA
gNj7P9DU+z942Ps/
0Nb7PxDY+z8ZaybO6EH8P+hB/D+A2Ps/4EH8PwIAAAAQwvs/EML7P4DY+z8AAAAA
FwAAAHzI+z93aWZpAJRVPYhIESdYiUIAAAAAAHjY+z8AAAAAIA4GABcAAAABAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAACAB/0/6Af9P1AI/T8AAAAAAAAAAAEAAAAAAAAA
qFFAPwAAAAAIjAlAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHXmuw==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0HX9P2B0/T/Idf0/

and finally and in a cold boot. Once in this state, the only way to recover and get WiFi again is erase flash and reload the firmware.

Xykon

@colateral This seems to be due to a new tool we added that puts the ESP32 into firmware update mode if a Pytrack or Pysense is being used. It seems this tool doesn't work on Windows...

Please edit application.mk in the esp32 directory, search for flash: and comment the 4 lines as shown below:

flash: $(APP_BIN) $(BOOT_BIN)
#       $(ECHO) "Entering flash mode"
#       $(Q) $(ENTER_FLASHING_MODE)
        $(ECHO) "Flashing project"
        $(Q) $(ESPTOOLPY_WRITE_FLASH) $(ESPTOOL_ALL_FLASH_ARGS)
#       $(ECHO) "Exiting flash mode"
#       $(Q) $(EXIT_FLASHING_MODE)

This will prevent the tool from running until we can fix it.

tudro

@xykon Thank you for the quick answer and sorry for the late reply (2 small kids :) ). You were right, i didn't have G23 and GND connected. I was able to reset the flash and make the lopy work again. Thank you very much

Colateral

@xykon Thanks. It was working. The mpy-cross was built and also the binary .. but there are issues on serial writing.
COM7 is ON and 'waiting for download'

but

            $ make V=1 BOARD=LOPY LORA_BAND=USE_BAND_868 flash ESPPORT=COM7
            python ../py/makeversionhdr.py build/LOPY_868/release/genhdr/mpversion.h
            Entering flash mode
            python tools/pypic.py --port COM7 --enter
            Traceback (most recent call last):
              File "tools/pypic.py", line 185, in <module>
                sys.exit(main(sys.argv[1:]))
              File "tools/pypic.py", line 173, in main
                pic = Pypic(args.port)
              File "tools/pypic.py", line 77, in __init__
                self.serial = serial.Serial(port, baudrate=115200, bytesize=serial.FIVEBITS, timeout=0.25)
              File "D:/ProgramFiles/msys32/mingw32/lib/python2.7/site-packages/serial/serialwin32.py", line 31, in __init__
                super(Serial, self).__init__(*args, **kwargs)
              File "D:/ProgramFiles/msys32/mingw32/lib/python2.7/site-packages/serial/serialutil.py", line 240, in __init__
                self.open()
              File "D:/ProgramFiles/msys32/mingw32/lib/python2.7/site-packages/serial/serialwin32.py", line 78, in open
                self._reconfigure_port()
              File "D:/ProgramFiles/msys32/mingw32/lib/python2.7/site-packages/serial/serialwin32.py", line 222, in _reconfigure_port
                'Original message: {!r}'.format(ctypes.WinError()))
            serial.serialutil.SerialException: Cannot configure port, something went wrong. Original message: WindowsError(87, 'The parameter is incorrect.')
            make: *** [application.mk:398: flash] Error 1

With pycom firmware update and updater.py (changed according with Daniel above guidelines) ... it is working.

            >>> import gc
            >>> uos.uname()
            (sysname='LoPy', nodename='LoPy', release='1.10.1.b1', version='v1.8.6-839-g536c958c on 2017-11-15', machine='LoPy with ESP32', lorawan='1.0.0')
            >>> 
            >>> 
            >>> 
            >>> import gc
            >>> gc.mem_free()
            3070064

Colateral

@xykon said in New firmware release 1.10.1.b1:
For windows:
https://dl.espressif.com/dl/xtensa-esp32-elf-win32-1.22.0-73-ge28a011-5.2.0.zip

Xykon

@colateral Please use the following within msys2 to update the toolchain:

# Automatically download precompiled toolchain, unpack at /opt/xtensa-esp32-elf/
TOOLCHAIN_ZIP=xtensa-esp32-elf-win32-1.22.0-73-ge28a011-5.2.0.zip
echo "Downloading precompiled toolchain ${TOOLCHAIN_ZIP}..."
cd ~
curl -LO --retry 10 http://dl.espressif.com/dl/${TOOLCHAIN_ZIP}
cd /opt
rm -rf /opt/xtensa-esp32-elf  # for upgrades
unzip ~/${TOOLCHAIN_ZIP}
rm ~/${TOOLCHAIN_ZIP}

Colateral

@xykon thanks. we are using msys2. This has to be installed in msys to work?

Xykon

@colateral Please download the new xtensa compiler for your OS.

The "esp32" port requires an xtensa gcc compiler, which can be downloaded from the Espressif website:

for 64-bit Linux::

https://dl.espressif.com/dl/xtensa-esp32-elf-linux64-1.22.0-73-ge28a011-5.2.0.tar.gz

for 32-bit Linux::

https://dl.espressif.com/dl/xtensa-esp32-elf-linux32-1.22.0-73-ge28a011-5.2.0.tar.gz

for Mac OS:

https://dl.espressif.com/dl/xtensa-esp32-elf-osx-1.22.0-73-ge28a011-5.2.0.tar.gz

Colateral

building from fresh pulled git raises errors. There is a param that shall be specified?

$ make BOARD=LOPY TARGET=boot
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
mkdir -p build/LOPY_868/release/bootloader/
CC bootloader/bootloader.c
xtensa-esp32-elf-gcc.exe: error: unrecognized command line option '-mfix-esp32-psram-cache-issue'
make: *** [../py/mkrules.mk:47: build/LOPY_868/release/bootloader/bootloader.o] Error 1

Xykon

@tudro Please make sure you have a wire connected between G23 and GND and reset the board before trying the erase. You should see a message "Waiting for download" on the serial terminal. Also make sure that all serial terminal programs & Pymakr plugins are disconnected when running esptool or the firmware update tool.

tudro

Hello,

After i upgraded the firmware my lopy seems bricked. The led is red and i can't do anything with it. I tried to erase the flash with the esptool like here https://forum.pycom.io/topic/1343/solved-lopy-bricked-red-led, but i get "A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header" I run it with: python esptool.py --port COM3 --chip esp32 erase_flash

In the console i get:
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:0x3fff9028,len:8
load:0x3fff9030,len:1076
load:0x4009fa00,len:0
ho 12 tail 0 room 4
load:0x4009fa00,len:15344
entry 0x400a070c

I've also tried to connect G28 to 3v3 to do load the previous/factory firmware, but it doesn't do anything. I always get the red led, never the orange one. I've done this firmware 'reset' many times and it worked fine.

I've had the lopy for about 8 months. I've upgraded it constantly and played with it a lot. Never had any problems until now.

Any advice?

Thank you

jp00

@xykon I'm also trying to reproduce the problem and I can't do it anymore. Maybe it was related to using the REPL while running the Gateway, I don't know. Thanks, I will let you know If i can reproduce it.

shridattdudhat

@jp00 Hi, I was also getting a similar error....

Guru Meditation Error of type LoadProhibited occurred on core 0. Exception was unhandled.
Register dump:
PC : 0x400fb5d0 PS : 0x00060e30 A0 : 0x800dd2c8 A1 : 0x3ffda860
A2 : 0x00000001 A3 : 0x00000001 A4 : 0x00000000 A5 : 0x00000001
A6 : 0x00000000 A7 : 0x00060023 A8 : 0x800fa3e6 A9 : 0x3fff0580
A10 : 0x00000001 A11 : 0x00000001 A12 : 0x3ffe7080 A13 : 0x3ffe7080
A14 : 0x3fff06f0 A15 : 0x3fff0650 SAR : 0x00000020 EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000001 LBEG : 0x40098624 LEND : 0x4009862f LCOUNT : 0x00000000

Backtrace: 0x400fb5d0:0x3ffda860 0x400dd2c5:0x3ffda880 0x400dd32f:0x3ffda8a0 0x400dd7bd:0x3ffda8d0 0x400dd9d7:0x3ffda8f0 0x400dcb69:0x3ffda930

I placed lopy in safe mode then I connected it via IP. I saw some unwanted files in flash folder of lopy. i deleted all unnecessary files and folder. and all set, my lopy again starts working as a charm :)

Xykon

@jp00 I've been running the lorawan-nano-gateway for 30 minutes now without seeing any crash. Can you please erase the fs with import os; os.mkfs('/flash') to make sure this isn't a flashing problem and then check that you have the latest nano-gateway code?

Also can you please confirm which frequency band you are using?

seb

I just tested the LoPy to LoPy raw lora ping pong example and its working properly on the latest firmware

Xykon

@pjoerke said in New firmware release 1.10.1.b1:

I have trouble with my LoPy's. Since I made the firmware update I can't receive any LoRa packets. I also tried the LoRa Raw Nano Gateway from your tutorials (just copy&paste) but even this won't work. It seems that something went wrong on LoRa :(

Hello Pascal, can you please be more specific. I've tested LoPy 2 LoPy RAW connectivity and using one LoPy as a NanoGateway and another as a Node. Both tests have been successful with the latest firmware.

pjoerke

Hi,

I have trouble with my LoPy's. Since I made the firmware update I can't receive any LoRa packets. I also tried the LoRa Raw Nano Gateway from your tutorials (just copy&paste) but even this won't work. It seems that something went wrong on LoRa :(

Regards,
Pascal

jp00

@shridattdudhat Hi, thanks for the info about safe boot! But the problem is not that I can't use the Lopy, the problem is that from time to time, the Lopy reboots itselft (and keeps working fine after that). Sorry about the little information in the other post.

shridattdudhat

@jp00 Put lopy in safe mode and do as per document

make sure to remove jumper before 3 seconds.

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