Search found 11 matches

by st0ff3r
Thu Jun 04, 2020 7:42 am
Forum: Report Bugs
Topic: Wrongly reacting to and sending 802.11 beacons with Channel Switch Announcement
Replies: 0
Views: 1123

Wrongly reacting to and sending 802.11 beacons with Channel Switch Announcement

ESP's appear to honour 802.11 beacons containing CSA even if they are not connected to the AP sending the beacon. Here is a simple command that sends out beacons containing CSA's https://github.com/nabovarme/beacon_spammer I am using an esp8266 with non-os sdk latest from master git. The app is here...
by st0ff3r
Sun May 24, 2020 3:05 am
Forum: ESP8266 SDK
Topic: Initial Crash on first UART data being sent with screen, but only on first flash.
Replies: 1
Views: 4044

Re: Initial Crash on first UART data being sent with screen, but only on first flash.

I also get this Fatal exception 0(IllegalInstructionCause): epc1=0x40100014, epc2=0x00000000, epc3=0x00000000, excvaddr=0x4010b128, depc=0x00000000<FE> I think its related to my use of GPIO interrupt. Do you use any interrupts? Not sure if it only happens first time after flash. That could indicate ...
by st0ff3r
Tue May 19, 2020 2:35 am
Forum: ESP8266 SDK
Topic: exception at 4000df2f (memcmp)
Replies: 7
Views: 7068

Re: exception at 4000df2f (memcmp)

it was a missing NULL check in esp-open-lwip/lwip/netif/etharp.c, function etharp_raw()

fixed here https://github.com/nabovarme/esp-open-l ... ff35ce1ada
by st0ff3r
Sun Apr 05, 2020 1:14 am
Forum: ESP8266 SDK
Topic: Power on system_get_rst_info() values
Replies: 0
Views: 2938

Power on system_get_rst_info() values

Hi, I dont quite understand the folowing error code: I get it after power on with non-os sdk 3.0.3 rtc_info->reason=2 rtc_info->exccause=0 ...epc1=0x4024668c epc2=0x00000000 epc3=0x00000000 excvaddr=0x4010be30 depc=0x00000000 In the documentation "ESP8266 Reset Causes and Common Fatal Exception...
by st0ff3r
Tue Mar 24, 2020 2:06 am
Forum: ESP8266 SDK
Topic: exception at 4000df2f (memcmp)
Replies: 7
Views: 7068

Re: exception at 4000df2f (memcmp)

Any news on this exception? I keep getting it, too, sometimes when rebooting after an OTA update. Is there a way to find out what is at address 0x33? does it only happens after reboot by system_restart() or also after power-on? With sdk 3.0.3 I see some exceptions to after calling system_restart(),...
by st0ff3r
Tue Mar 24, 2020 2:00 am
Forum: ESP8266 SDK
Topic: exception at 4000df2f (memcmp)
Replies: 7
Views: 7068

Re: exception at 4000df2f (memcmp)

I think I solved the problem by replacing the malloc()'ed variable with a static one, so I guess in some (low memory) circumstances malloc() returns an invalid pointer.
by st0ff3r
Mon Dec 03, 2018 9:54 pm
Forum: ESP8266 SDK
Topic: NULL_MODE
Replies: 0
Views: 1926

NULL_MODE

Hi I use wifi_set_opmode_current(NULL_MODE) to "restart" the network, by calling

wifi_set_opmode_current(NULL_MODE)

wait and then

wifi_set_opmode_current(STATIONAP_MODE)

this works fine in sdk 2.x, but I get fatal error and reboot when doing it in sdk 3.x

any changes here?
by st0ff3r
Sat Nov 17, 2018 8:49 pm
Forum: ESP8266 SDK
Topic: exception at 4000df2f (memcmp)
Replies: 7
Views: 7068

exception at 4000df2f (memcmp)

reason=2 exccause=28 epc1=0x4000df2f epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000033 depc=0x00000000 anyone know why app.map contains both PROVIDE (ets_memcmp, 0x400018d4) and PROVIDE (memcmp, 0x4000dea8) are those not the same? include/platform.h says #define memcmp(a, b, c) os_memcmp(a, b, c) ...
by st0ff3r
Sat Apr 07, 2018 7:12 pm
Forum: ESP8266 SDK
Topic: system_phy_freq_trace_enable()
Replies: 3
Views: 1460

Re: system_phy_freq_trace_enable()

Why is it not turned on by default? Could it in any way be related to this problem: https://tech.scargill.net/esp8266-and-l ... nection-2/

Does the option make the chip try to stay on the right frequency or does it just log deviation?
by st0ff3r
Fri Apr 06, 2018 4:20 am
Forum: ESP8266 SDK
Topic: system_phy_freq_trace_enable()
Replies: 3
Views: 1460

system_phy_freq_trace_enable()

Hi, can any of you enlighten me of the meaning of sdk function system_phy_freq_trace_enable()?

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