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    Explore Pybytes | Official Documentation | Report a Firmware Bug/Issue | GitHub

    Multiple issues with LoPy TTN Nano Gateway

    Scheduled Pinned Locked Moved LoPy
    ttn gatewayguru meditation
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    • T Offline
      Thosch42 @jmarcelino
      last edited by

      @jmarcelino It's just a LoPy with Expansionboard 2.1A, a 2000mAh LiPo, and USB connection to my PC. I also tested it without the LiPo, on two different PCs, a Notebook and a MS Surface Pro 4. Everytime the same result. I tried 5 different LoPys with 5 different Expansionboards. Allways the same. Sometimes, it runs for 10 min, sometimes it freaks out after 2 min. Till now, I found no rule.

      Cheers,
      Thomas

      1 Reply Last reply Reply Quote 0
      • T Offline
        Thosch42 @jmarcelino
        last edited by

        @jmarcelino Oh, and also when I power the board only from the LiPo, without USB connection, I get the same problem.

        J 1 Reply Last reply Reply Quote -1
        • J Offline
          jmarcelino @Thosch42
          last edited by

          @Thosch42
          Please try the just released 1.7.3 some fixes may be relevant https://forum.pycom.io/topic/1361/firmware-release-1-7-3-b1

          T 2 Replies Last reply Reply Quote 0
          • T Offline
            Thosch42 @jmarcelino
            last edited by

            @jmarcelino Hi!
            Ok, updated the Firmware 1.7.3. Same result:

            rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
ets Jun  8 2016 00:22:57

rst:0x10 (RTCWDT_RTC_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
******************************
**********  tsHome  **********
*****  TTN Nano Gateway  *****
******************************
b'240AC4FFFE00D624'
******************************

WiFi connected!
MicroPython v1.8.6-664-gef7afeaa on 2017-06-15; LoPy with ESP32
Type "help()" for more information.
>>> Push ack
Push ack
Pull ack
Push ack
Push ack
Pull ack
Push ack
Guru Meditation Error of type StoreProhibited occurred on core  0. Exception was unhandled.
Register dump:
PC      : 0x400f7b66  PS      : 0x00060130  A0      : 0x800ef6df  A1      : 0x3ffee280
A2      : 0x3ffecf23  A3      : 0x3ffe8374  A4      : 0x00000000  A5      : 0x00000001
A6      : 0xffffff30  A7      : 0x3ffece4f  A8      : 0x800f7b66  A9      : 0x3ffee260
A10     : 0x3f409ae8  A11     : 0x3ffe6ee0  A12     : 0x3f40a0c4  A13     : 0x00000021
A14     : 0x00000001  A15     : 0x3ffc6020  SAR     : 0x0000001a  EXCCAUSE: 0x0000001d
EXCVADDR: 0x00000000  LBEG    : 0x4000c46c  LEND    : 0x4000c477  LCOUNT  : 0x00000000

Backtrace: 0x400f7b66:0x3ffee280 0x400ef6df:0x3ffc6030 0x400d8d9b:0x3ffc6050 0x400d92a8:0x3ffc6080 0x400d94de:0x3ffc60a0 0x400d8607:0x3ffc60e0

Rebooting...
ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_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
******************************
**********  tsHome  **********
*****  TTN Nano Gateway  *****
******************************
b'240AC4FFFE00D624'
******************************

WiFi connected!
MicroPython v1.8.6-664-gef7afeaa on 2017-06-15; LoPy with ESP32
Type "help()" for more information.
>>> Push ack
Push ack
Pull ack
Push ack
Pull ack
Push ack
Push ack
Push ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Pull ack
Push ack
Guru Meditation Error of type LoadProhibited occurred on core  0. Exception was unhandled.
Register dump:
PC      : 0x400d8b24  PS      : 0x00060130  A0      : 0x800f7bf0  A1      : 0x3ffee260
A2      : 0x00000000  A3      : 0x00000001  A4      : 0x00000000  A5      : 0x00000001
A6      : 0x00000001  A7      : 0x3ffc6020  A8      : 0x800d8b4d  A9      : 0x3ffee220
A10     : 0x00000001  A11     : 0x00000001  A12     : 0x00000001  A13     : 0x00000000
A14     : 0x00000000  A15     : 0x000003a2  SAR     : 0x00000020  EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000000  LBEG    : 0x4000c46c  LEND    : 0x4000c477  LCOUNT  : 0x00000000

Backtrace: 0x400d8b24:0x3ffee260 0x400f7bf0:0x3ffee280 0x400ef6df:0x3ffc6030 0x400d8d9b:0x3ffc6050 0x400d92a8:0x3ffc6080 0x400d94de:0x3ffc60a0 0x400d8607:0x3ffc60e0

Rebooting...
ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_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
******************************
**********  tsHome  **********
*****  TTN Nano Gateway  *****
******************************
b'240AC4FFFE00D624'
******************************

            Cheers,
            Thomas

            1 Reply Last reply Reply Quote 0
            • T Offline
              Thosch42 @jmarcelino
              last edited by

              @jmarcelino
              Currently I try to setup a firmware build environment on Win10 in order to debug the thing, but it works not yet.
              Does anybody have a complete guidance or a docker image?

              G 1 Reply Last reply Reply Quote 0
              • G Offline
                gertjanvanhethof Pybytes Beta @Thosch42
                last edited by

                @Thosch42 I don't thing it has anything to do with you build environment.
                I don't have guru meditation errors but still facing problems with acceptance of the gateway connection by TTN.
                See: TTN Join accept not handled properly

                Do you use the code from github?

                T 1 Reply Last reply Reply Quote 0
                • T Offline
                  Thosch42 @gertjanvanhethof
                  last edited by

                  @gertjanvanhethof
                  Yes, I use the original gitlab source, and also the original binary with Pycom Firmware Updater. But I run always into this Guru Meditation error. I tried it with the tutorial scripts from from gitlab and also with modified versions. Always the same.
                  Offline debugging tells me only, the bad code line is inside the byte code (what means, inside the python scripts, isn't it?).
                  Cheers,
                  Thomas

                  J 1 Reply Last reply Reply Quote 0
                  • J Offline
                    jmarcelino @Thosch42
                    last edited by

                    @Thosch42

                    I’ve never seen anything quite that bad and I’ve seen a fair share of nano gateways.

                    Which nodes are you using? just LoPys?

                    It’s possible to get the offending line from the address given in the guru medication error, if you have the tool chain and a compiled image you can use addr2line included in the compiler tool chain

                    T 3 Replies Last reply Reply Quote 0
                    • T Offline
                      Thosch42 @jmarcelino
                      last edited by

                      @jmarcelino Yes, just LoPys with Expansionboards V2.1A.
                      Good to know, with the addr2line command for gdb. I check it, as soon as I'm back in the office.
                      Cheers,
                      Thomas

                      1 Reply Last reply Reply Quote 0
                      • T Offline
                        Thosch42 @jmarcelino
                        last edited by

                        @jmarcelino Ok, it took a while. Currently pretty busy:
                        The addr2line tool told me the following:

                        ts@Vrumfondell MSYS ~/pycom-micropython-sigfox/esp32/build/LOPY_868/release
$ xtensa-esp32-elf-addr2line -e application.elf -a 0x400f7b66
0x400f7b66
C:\msys32\home\ts\pycom-micropython-sigfox\esp32/../py/vm.c:1206

                        what leads me directly to

                        (gdb) info symbol 0x400f7b66
mp_execute_bytecode + 4166 in section .flash.text
(gdb) list *0x400f7b66
0x400f7b66 is in mp_execute_bytecode (../py/vm.c:1206).
1201                    ENTRY(MP_BC_BINARY_OP_MULTI): {
1202                        MARK_EXC_IP_SELECTIVE();
1203                        mp_obj_t rhs = POP();
1204                        mp_obj_t lhs = TOP();
1205                        SET_TOP(mp_binary_op(ip[-1] - P_BC_BINARY_OP_MULTI, lhs, rhs));
1206                        DISPATCH();
1207                    }
1208
1209                    ENTRY_DEFAULT:
1210                        MARK_EXC_IP_SELECTIVE();

                        but it does (me) not really help.

                        Cheers,
                        Thomas

                        1 Reply Last reply Reply Quote 0
                        • T Offline
                          Thosch42 @jmarcelino
                          last edited by

                          @jmarcelino
                          Hi!
                          I still have this problem.Another question: Should there really not boot.py? Because I have one.

                          import os
from machine import UART
uart = UART(0, 115200)
os.dupterm(uart)

                          Or should I better delete the boot.py and connect the LoPy via Wi-Fi?

                          Cheers,
                          Thomas

                          1 Reply Last reply Reply Quote 0
                          • R Offline
                            rm
                            last edited by

                            @jmarcelino said in Multiple issues with LoPy TTN Nano Gateway:

                            https://forum.pycom.io/topic/1361/firmware-release-1-7-3-b1

                            After my update from 1.6.2 to 1.7.x the nano gateway stopped functioning. Is there anyone who has working code for a nano gateway functioning on 1.7.3-b1 firmware?

                            1 Reply Last reply Reply Quote 0
                            • T Offline
                              Thosch42
                              last edited by

                              OK, it seems running now. But I don't know why.
                              I updated the device with the newest 1.7.5.b1 firmware via update tool - no success.
                              I flashed my own build from the latest pull - get a red light after update
                              I updated the device again with the update tool - no red light, but also no success
                              I synced the lopy directly from the git working directory, just changed the three lines in config.py, leaving the otaa_node.py where it is (so it copied it also to the gateway) and - Tataa - the gateway runs now for more than an houre.
                              Ok, the node is not joining, but I#ve seen, there are some threads about this issue.

                              And I have to find out, why I get a red light and a freeze, when I flash my own build from the original source.

                              Cheers,
                              Thomas

                              J 1 Reply Last reply Reply Quote 0
                              • J Offline
                                jmarcelino @Thosch42
                                last edited by

                                @Thosch42
                                This tip from Robert should fix your red light:

                                https://forum.pycom.io/topic/1343/solved-lopy-bricked-red-led/3

                                1 Reply Last reply Reply Quote 0

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