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pycom / pycom-micropython-sigfox

A fork of MicroPython with the ESP32 port customized to run on Pycom's IoT multi-network modules.
MIT License
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Continuous boot problem with PIR, lora and deepsleep project. #527

Open krukle opened 3 years ago

krukle commented 3 years ago

(sysname='LoPy4', nodename='LoPy4', release='1.20.2.r3', version='v1.11-044dfea on 2020-12-23', machine='LoPy4 with ESP32', lorawan='1.0.2', sigfox='1.0.1', pybytes='1.6.1')

We've built an application that wakes up from high/lows/ from a HC SR501 PIR sensor.

First it runs a wifi-sniffer

Then it sends a message thorugh LoRa.

Then it goes to deepsleep, set to wake up from either high or low depending on what it woke up from last.

It goes smoothly a few cycles. Sometimes even days. But after a while we always run into this problem

´´´python rst:0x7 (TG0WDT_SYS_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:0x3fff0018,len:4 load:0xbfff009c,len:1228 load:0x3f720080,len:1073782456 ets Jun 8 2016 00:22:57 ´´´

This loops indefinitely until the power is cut. We can not catch it with an error handler because it wont even let the pycom load boot nor main.

What's happening here?

We've tried on three different pycom lopy4 units and with different firmware's, with lora.nvram.save/load and without. If we dont use Lora, this never happens. And if we dont use deepsleeps, this never happens either (obviously).

robert-hh commented 3 years ago

Does the device boot again properly after a power cut, or do you have to set it up again?

krukle commented 3 years ago

It boots up properly after a power cut.

On Tue, 2 Feb 2021, 18:12 robert-hh, notifications@github.com wrote:

Does the device boot again properly after a power cut, or do you have to set it up again?

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/pycom/pycom-micropython-sigfox/issues/527#issuecomment-771801886, or unsubscribe https://github.com/notifications/unsubscribe-auth/ARHSGQPXW6FOBFDMTD3RZITS5AXAFANCNFSM4W63H3MA .

robert-hh commented 3 years ago

This section looks weird:

load:0x3fff0018,len:4
load:0xbfff009c,len:1228
load:0x3f720080,len:1073782456

That is output from the boot loader. Comparing to a LoPy4 boot message here and surely to the 'good' messages at your side, addresses and lengths are off, especially the address in the second line and the length on the last line. The length value 1073782456 is hex 40009eb8, which is a valid address in the internal ROM.

Can you exclude a problem with the power supply?

krukle commented 3 years ago

We've used different power supplies and still gotten the same error message. We've gotten the message through a power bank and through the wall outlet, and with different cables.

On Tue, 2 Feb 2021, 21:25 robert-hh, notifications@github.com wrote:

This section looks weird:

load:0x3fff0018,len:4 load:0xbfff009c,len:1228 load:0x3f720080,len:1073782456

That is output from the boot loader. Comparing to a LoPy4 boot message here and surely to the 'good' messages at your side, addresses and lengths are off, especially the address in the second line and the length on the last line. The length value 1073782456 is hex 40009eb8, which is a valid address in the internal ROM.

Can you exclude a problem with the power supply?

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/pycom/pycom-micropython-sigfox/issues/527#issuecomment-771956355, or unsubscribe https://github.com/notifications/unsubscribe-auth/ARHSGQIEGNQ3A66V3JAKVHTS5BNTPANCNFSM4W63H3MA .