Firmware release 1.7.1.b1

[livius]

@daniel
I have few new problems after upgrade from 1.6.13 to 1.7.1
Now many times i got

AttributeError: 'module' object has no attribute

but code was not changed and worked before upgrade - can something e.g. GC root pointers change affect some code?
I do not use custom threads. Only "simple" code.

UPDATE
After downgrade to 1.6.13 all work ok without any change in the code..

[daniel]

@livius: can you share a small piece of code that reproduces the issue that you are having? Thanks...

[daniel]

@mcook please try clonning the new IDF from scratch.

[daniel]

@livius can you share the complete exception log? Is it happening inside an interrupt callback?

[mcook]

@daniel

Hi. I did that.

These are my steps. They worked with the previous source. But now I am receiving the error. Do I need to change something?

#for my mac - get the ESP32 xtensa compiler
wget https://dl.espressif.com/dl/xtensa-esp32-elf-osx-1.22.0-59.tar.gz

#edit ~/.bash_profile to add in the xtensa compiler
#Add in esp bin to the PATH:
export PATH=$PATH:$HOME/xtensa-esp32-elf/bin

cd ~/

#clone the esp idf libs
git clone https://github.com/pycom/pycom-esp-idf.git

cd pycom-esp-idf

#checkout the submodules
git submodule update --init

#set up the IDF_PATH
vi ~/.bash_profile
export IDF_PATH=~/pycom-esp-idf

cd ~/
#clone the code for micropyton
git clone https://github.com/pycom/pycom-micropython-sigfox.git

cd pycom-micropython-sigfox/mpy-cross
make all

cd ../esp32

#make the bootloader
make BOARD=LOPY -j5 LORA_BAND=USE_BAND_915 V=1 TARGET=boot

#vi application.mk
#update the reference to /dev/ttyUSB0 to the serial port the LoPy is using
#now I power off LoPy, attach GND to PIN 23 on the LoPy , and power back on

make BOARD=LOPY LORA_BAND=USE_BAND_915 flash

#the board is now flashed. power it off, remove the jumpers, power it on

[livius]

@daniel

Is it happening inside an interrupt callback?

I do not use in this project callbacks and threads

i have tried to create minimal code to reproduce but still without success.
Maybe this help somehow - but probably not:
In normal case with 1.6.13 when it start this is the log

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0x00
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:QIO, clock div:2
load:0x3fff9010,len:8
load:0x3fff9018,len:248
load:0x40078000,len:4056
load:0x4009fc00,len:920
entry 0x4009fde4
I (1557) wifi: wifi firmware version: 90b1b8b
I (1558) wifi: config NVS flash: disabled
I (1558) wifi: config nano formating: disabled
I (1573) wifi: Init dynamic tx buffer num: 32
I (1574) wifi: wifi driver task: 3ffd55f8, prio:23, stack:3584
I (1574) wifi: Init static rx buffer num: 10
I (1576) wifi: Init dynamic rx buffer num: 0
I (1580) wifi: Init rx ampdu len mblock:7
I (1584) wifi: Init lldesc rx ampdu entry mblock:4
I (1588) wifi: wifi power manager task: 0x3ffda9b4 prio: 21 stack: 2560
I (1595) wifi: sleep disable
I (2584) wifi: wifi timer task: 3ffdba30, prio:22, stack:3584
I (2606) wifi: Init ampdu: 0
I (2607) wifi: mode : softAP (24:0a:c4:00:6e:c3)
boot
29.31876 100463.6 262.9624
main
free 47904
konfig.config_wifi=1
wifi_sta
I (3439) wifi: Init ampdu: 0
I (3439) wifi: mode : sta (24:0a:c4:00:6e:c2) + softAP (24:0a:c4:00:6e:c3)
I (3440) wifi: sleep disable
<WLAN>
[(ssid='vnet-509F64', bssid=b'pT\xd2b\xc4\xda', sec=4, channel=1, rssi=-38), (ssid='livius', bssid=b'\x000O\x8b\x0c\x08', sec=4, channel=9, rssi=-40), (ssid='UPC0838976', bssid=b'\x8c\x04\xff\xf5\xae\x8a', sec=4, channel=11, rssi=-60), (ssid='UPC Wi-Free', bssid=b'\x8e\x04\xff\xf5\xae\x8c', sec=5, channel=11, rssi=-60), (ssid='UPC77A39D9', bssid=b'\x90\\Dt\x81\x7f', sec=4, channel=6, rssi=-69), (ssid='UPC Wi-Free', bssid=b'\x92\\\x14t\x81\x7f', sec=5, channel=6, rssi=-70), (ssid='TP-LINK_9A6D1E', bssid=b'\xb0Hz\x9am\x1e', sec=3, channel=6, rssi=-73), (ssid='keke', bssid=b'\xb0Hz\xbe\xf6\xa4', sec=3, channel=4, rssi=-75), (ssid='2.4G-Vectra-WiFi-B7C11C', bssid=b'\x84\x00-  <', sec=4, channel=1, rssi=-76), (ssid='2.4G-vnet-1C0A58', bssid=b't\x85*3 \xd7', sec=4, channel=1, rssi=-76), (ssid='DIRECT-y6-BRAVIA', bssid=b':\xb1\xdb\x83\xd7\x89', sec=3, channel=6, rssi=-85), (ssid='2.4G-vnet-08CC4C', bssid=b'\x00q\xc2C|\x94', sec=4, channel=1, rssi=-86), (ssid='UPC1334070', bssid=b'D2\xc8\x9c6\x0c', sec=4, channel=1, rssi=-87), (ssid='UPC Wi-Free', bssid=b'\x92\\\x14\xceh\x95', sec=5, channel=6, rssi=-88), (ssid='UPC Wi-Free', bssid=b'F2\xc8\x9c6\x0e', sec=5, channel=1, rssi=-89), (ssid='UPC5F267D4', bssid=b'\x90\\D\xceh\x95', sec=4, channel=6, rssi=-89), (ssid='UPC248781946', bssid=b'\xfco\xb7=fT', sec=3, channel=11, rssi=-91), (ssid='vnet-EC0D8E', bssid=b'T\xbe\xf7\nEN', sec=4, channel=11, rssi=-91), (ssid='UPC0040392', bssid=b'\x00&$>\xaa\x99', sec=4, channel=1, rssi=-94), (ssid='UPC Wi-Free', bssid=b'\x02&$>\xaa\x9b', sec=5, channel=1, rssi=-94)]
vnet-509F64
livius
UPC0838976
UPC Wi-Free
UPC77A39D9
UPC Wi-Free
TP-LINK_9A6D1E
keke
2.4G-Vectra-WiFi-B7C11C
2.4G-vnet-1C0A58
DIRECT-y6-BRAVIA
2.4G-vnet-08CC4C
UPC1334070
UPC Wi-Free
UPC Wi-Free
UPC5F267D4
UPC248781946
vnet-EC0D8E
UPC0040392
UPC Wi-Free
I (7133) wifi: ap channel adjust o:1,1 n:9,2
I (7133) wifi: n:9 2, o:1 0, ap:9 2, sta:9 2, prof:1
I (8130) wifi: state: init -> auth (b0)
I (8135) wifi: state: auth -> assoc (0)
I (8139) wifi: state: assoc -> run (10)
I (8155) wifi: connected with livius, channel 9
WLAN connection to the router succeeded!
connected to socket
wifi_imported
konfig.config_czas=1
---RTC---
(1970, 1, 1, 0, 0, 8, 383520, None)
(2017, 6, 2, 21, 31, 15, 563, None)
konfig.config_LCD=1
konfig.config_termometr=1
---DS18X20---
---termometr---
---termometr: bytearray(b'(\xff;\x17\x83\x16\x04\xa3')

but with 1.7.1

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0x00
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:QIO, clock div:2
load:0x3fff9010,len:12
ho 0 tail 12 room 4
load:0x3fff9020,len:388
load:0x40078000,len:11412
load:0x4009fc00,len:848
entry 0x4009fd9c
boot
28.58889 100493.7 260.5683
main
free 41424
konfig.config_wifi=1
wifi_imported
konfig.config_czas=1
---RTC---
Traceback (most recent call last):
  File "main.py", line 13, in <module>
  File "/flash/lib/calosc.py", line 23, in <module>
  File "/flash/lib/czas.py", line 49, in <module>
AttributeError: 'module' object has no attribute 'wlan'
MicroPython v1.8.6-640-g585ac892 on 2017-06-02; WiPy with ESP32
Type "help()" for more information.
>>> 

czas.py have

import wifi

and inside wifi.py is

import machine
import time
from machine import Timer
from network import WLAN
import socket
import binascii
import struct
import funkcje
from machine import Pin
import os

print('wifi_sta')
funkcje.Led(0x00ff00, 100)

wlan = WLAN(mode=WLAN.STA_AP)
adr = socket.getaddrinfo('192.168.1.102', 9456)
sok = None
print(wlan)
..........other lines of code

and i use in czas.py e.g.
wifi.wlan.isconnected()

and i got then error that wlan not exists

[jmarcelino]

@mcook
not sure if it helps but the latest toolchain is actually https://dl.espressif.com/dl/xtensa-esp32-elf-osx-1.22.0-61-gab8375a-5.2.0.tar.gz

[livius]

@daniel
i have found problem :) And now have question.

Is name wifi registered as reserved unit name?
i have in my lib folder wifi.py

but i see that when i call dir it list me some system objects?

>>> dir(wifi)
['Wifi', 'WLAN', '__name__', 'hexlify', 'sleep', 'Timer', 'exc_info', 'start_new_thread']

after changing wifi.py to different name and all its references
all work ok

[jmarcelino]

@livius
Weird I didn't get any wifi.py on my lib and also nothing after os.mkfs("/flash") Wondering how you got it...

[jmarcelino]

@daniel
I was just reading this post about the 4MB pSRAM support https://www.esp32.com/viewtopic.php?f=13&t=2031

As Jeroen explains do we need to build the toolchain from the xtensa-1.22.x-ext_ram_patch branch to compile the Pycom source correctly for the W01/L01 modules?

All seems a bit cutting edge :-) but to get 4MB RAM wow...

[livius]

@jmarcelino
This is my custom file.
And it worked ok in previous firmware.
but now this name is registered by system for something. I see nothing about in docs and i do not see it in pycom sources, but maybe i miss something in pycom sources

[jmarcelino]

@livius
ha sorry misunderstood your comment. But if I do dir(wifi) as you showed I get nothing.

[livius]

@jmarcelino
what you got when you do?

import wifi
dir(wifi)

if above raise error
try to create empty wifi.py file in lib and back with result - i am really interested :)

[livius]

@jmarcelino
i tested this self
and whithout file wifi.py anywhere
i have interesting result

>>> import wifi
>>> dir(wifi)
['Wifi', 'WLAN', '__name__', 'hexlify', 'sleep', 'Timer', 'exc_info', 'start_new_thread']
>>>

can someone confirm this?
And maybe @daniel can bring light about purpose of that module

[mcook]

@jmarcelino

Thank you. I downloaded the latest compiler, removed all of my old stuff and re-installed it all, and now it builds fine.

Mike

[robert-hh]

@livius I created a brand new firmware, and loaded that: no module wifi.
BUT: If I update via the pycom updater, there is a module wifi included.
So it's sneaking in via the "official" image.

[daniel]

@livius and @robert-hh thanks for the help. We found the offending file and a release without the problem will be out within 1 hour.

[robert-hh]

@daniel I have another problem with the github distro:

1. It worked fine after I did an initial build an upload yesterday night, Both the MP repository and and esp IDF were freshly cloned. No own history whatsoever.
2. The (in the hunt for wifi.py) iI used the updater, and that worked.
3. After trying to reflash the firmware with my own build, the device would not start again.
4. I erased flash and reflashed it with my freshly build image.
5. Now the device boots again, BUT does not execute boot.py or main.py. It seems to believe, that it is in safeboot mode.
6. The image loaded via the updater tool runs main.py and boot.py
   Steps 2 & 3 can be repeated. I cannot switch between the versions w/o an erase.

[daniel]

@robert-hh there were changes in the partition table on the latest release hence the need to erase. The updater tool only erases the necessary blocks of flash in order to remove any left over of the previous partition info. After erasing manually and flashing your own built image things should work as normal too. Is that not the case?

[daniel]

Hello,

1.7.1.b2 is now released. It removes the unwanted wifi.py script. Thanks.

Cheers,
Daniel