ESP8266 Developer Zone

Posted: **Tue May 30, 2017 11:36 am**

Hello,

The RTOS_SDK last commit e1e17a1to (wujiangang sync: from 61124bba)
1. driver:
1). Fix hw_timer issue, #96;
2). Fix SPI output data error;
3). Fix SPI read data bug;
4). Fix driver lib compile issue;
5). Fix uart flow control issue;

2. lwip:
1). Enable lwip ETHARP_TRUS_IP_MAC;
2). Modify dhcp/dhcps timer from 60 seconds to 1 second;

3. WiFi:
1). Support CSA;

is unstable, it is running on ShowCritical: 0 trap during the wifi station/ap scan.
These are the files that are generating the problem:

: files.png (11.14 KiB) Viewed 8024 times

UPDATE: The problem is not related to the lwip lib, I updated the dhcpserver files and lwip.a and the wifi is working fine.
The problem is related to libmain, lib80211 and libpp

Please investigate.

Regards

Posted: **Tue May 30, 2017 2:23 pm**

I have the same problem:

Before update:
entry station mode to connect server
bcn 0
del if1
mode : sta(5c:aa:dd:00:12:19)

scandone
state: 0 -> 2 (b0)
Ustate: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 2
pm open phy_2,type:2 0 0
cnt

After update:
mode : sta(5c:aa:dd:00:12:19) + softAP(5c:aa:dd:00:12:19)
add if0
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
add if1
bcn 100

entry station mode to connect server
bcn 0
del if1
mode : sta(5c:aa:dd:00:12:19)
scandone
ShowCritical:0

Posted: **Wed May 31, 2017 5:03 pm**

Hi,

Can you provide the test code for debugging?

Thanks for your interest in ESP8266!

Posted: **Thu Jun 01, 2017 2:21 am**

Hi Faye,

Here is an example:

Code: Select all

#include "espressif/esp_libc.h"
#include "espressif/esp_misc.h"
#include "espressif/esp_common.h"
#include "espressif/esp_wifi.h"
#include "espressif/esp_sta.h"
#include "uart.h"
#include "user_config.h"

#ifdef DEBUG
#include "gdbstub/gdbstub.h"
#endif

bool wifi_set_mode(WIFI_MODE mode){
    if(!mode){
        bool s = wifi_set_opmode(mode);
        wifi_fpm_open();
        wifi_fpm_set_sleep_type(MODEM_SLEEP_T);
        wifi_fpm_do_sleep(0xFFFFFFFF);
        wifi_fpm_close();
        return s;
    }
    return wifi_set_opmode(mode);
}

bool wifi_start_station(const char * ssid, const char * pass) {
    if(!ssid || strcmp(ssid, "") == 0){
       IOT_ERROR("NULL/Empty ssid");
        return false;
    }

    WIFI_MODE mode = wifi_get_opmode();
    if((mode & STATION_MODE) == 0){
        mode |= STATION_MODE;
        if(!wifi_set_mode(mode)){
            IOT_ERROR("Failed to enable Station mode");
            return false;
        }
    }
    struct station_config config;
    memset(&config, 0, sizeof(struct station_config));
    strcpy((char *)config.ssid, ssid);
    if(pass){
        strcpy((char *)config.password, pass);
    }
    if(!wifi_station_set_config(&config)){
       IOT_ERROR("Failed to set Station config");
        return false;
    }

    if(!wifi_station_dhcpc_status()){
       IOT_DEBUG("DHCP client is not started, starting it...");
        if(!wifi_station_dhcpc_start()){
           IOT_ERROR("DHCP client start failed");
            return false;
        }
    }

    IOT_DEBUG("Entered here!");
   
    //IT IS FAILING HERE AND RETURNING FALSE
    return wifi_station_connect();
}

bool wifi_stop_ap() {
    WIFI_MODE mode = wifi_get_opmode();
    mode &= ~SOFTAP_MODE;
    if(!wifi_set_mode(mode)){
       IOT_ERROR("Failed to disable AP mode");
        return false;
    }
    return true;
}

void user_init(void) {
   uart_init();

   #ifdef DEBUG
   gdbstub_init();
   #endif
   
   IOT_DEBUG("SDK version: %s", system_get_sdk_version());

   bool test = wifi_stop_ap();
   if(!test) {
      IOT_ERROR("Failed to stop softAP mode");
   }

   test = wifi_start_station("MassaHome", "Massaneirohome1607");
   if(!test) {
       IOT_ERROR("Failed to connect to network");
   }
}

Used flags:

Code: Select all

SDK_INCDIR   = include extra_include include/espressif include/nopoll include/json include/udhcp include/lwip include/lwip/lwip include/lwip/ipv4 include/lwip/ipv6 include/mbedtls
LIBS = c gcc hal phy pp net80211 wpa main freertos lwip minic crypto mbedtls
LDFLAGS      = -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static -Wl,--gc-sections
LD_SCRIPT   = eagle.app.v6.ld
MODULES   = src/user gdbstub
CFLAGS      = -g -Og -ggdb -DDEBUG -Wpointer-arith -Wundef -Werror -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -ffunction-sections -fdata-sections -fno-builtin-printf -fno-jump-tables -DICACHE_FLASH -D__STDC_NO_ATOMICS__=1 -DESP8266_RTOS -D__STDC_VERSION__=201112L -DFREERTOS_ARCH_ESP8266

Output:

Code: Select all

445,692 (gdb) 
445,711 @"(user_init) 4577081 - SDK versio"
445,715 @"n: 1.5.0-dev(1aafc07)\n"
445,721 @"(wifi_start_station) 4577563 - E"
445,723 @"ntered here!\n"
445,729 @"(user_init) 4585115 - ERROR(L#14"
445,735 @"9): Failed to connect to network"
445,736 @"\n"
445,741 @"mode : sta(5c:cf:7f:0f:08:eb)\n"
445,743 @"add if0\n"
447,863 @"scandone\n"
451,307 @"ShowCritical:1\n"
451,505 ~"\nProgram received signal "
451,505 ~"SIGTRAP, Trace/breakpoint trap.\n"
451,505 ~"gdbstub_do_break_breakpoint_addr () at gdbstub/gdbstub-entry.S:399\n"
451,508 ~"399\t\tbreak 0,0\n"

OBS: The network that ESP8266 STATION MODE is going to connect must exist to reproduce the error.
OBS2: This example works fine using the old version of libmain, libpp and lib80211.

Another question, can you folks please improve the port.c file from RTOS_SDK/third_party/freertos, that file is really a mess, there are a lot of commented code inside it... Also please update the ShowCritical() function to use os_printf instead of ets_printf, and print the entire stack, so we can see where the problem is hapenning...

Code: Select all

void ShowCritical(void)
{
    ets_printf("ShowCritical:%d\n",uxCriticalNesting);
    ets_delay_us(50000);
}

Thanks

Posted: **Fri Jun 02, 2017 5:48 am**

One more vote for this:

Please improve the port.c file from RTOS_SDK/third_party/freertos
Update the ShowCritical() function to use os_printf instead of ets_printf, and print the entire stack

And please, can you remove the "pwm version nnnn" from pwm library.

Thanks.

Posted: **Mon Jun 12, 2017 9:22 am**

After the lastest commit the "ShowCritical" bug that was occurring during the wifi scan was partially fixed, sometimes it is still happening.

Code: Select all

231,694 (gdb) 
231,713 @"(user_init) 124189383 - SDK vers"
231,717 @"ion: 1.5.0-dev(1aafc07)\n"
231,723 @"(user_init) 124190051 - Free hea"
231,727 @"p size: 38920\n"
231,732 @"mode : sta(5c:cf:7f:0f:08:eb)\n"
231,734 @"add if0\n"
235,310 @"ShowCritical:0\n"

Also sometimes while debugging the code using gdbstub, I face the ShowCritical: 0 and ShowCritical: 1 messages, something related to the freeRTOS scheduler, probably during the context switch/vPortMalloc/vPortEnterCritical/vPortExitCritical.
Please update the port.c file with the ShowCritical function to include the entire stack on the print.

Posted: **Sun Sep 10, 2017 1:12 am**

Hi,

We are using ESP8266 RTOS SDK 1.5.0 in which we have faced ShowCritical:1 issue and after that Board restarted due to Watchdog Reset Reason.

So, Here We are using some spi_flash_write APIs in which we have put xTaskEnterCritical and xTaskExitCritical while writing any data into ESP8266 SPI Flash Memory.

So, how to recover that issue if anyone knows about that?

ESP8266 Developer Zone

RTOS_SDK last commit ShowCritical

RTOS_SDK last commit ShowCritical

Re: RTOS_SDK last commit ShowCritical

Re: RTOS_SDK last commit ShowCritical

Re: RTOS_SDK last commit ShowCritical

Re: RTOS_SDK last commit ShowCritical

Re: RTOS_SDK last commit ShowCritical

Re: RTOS_SDK last commit ShowCritical