Cellular: clear error

[pilotak]

When using ublox G350 in AT command mode it fails to connect to the network. Specifically in newly introduced function clear()

mbed-os/features/cellular/framework/AT/AT_CellularNetwork.cpp

Line 635 in 8f1bf43

nsapi_error_t AT_CellularNetwork::clear()

[INFO][CELL]: Modem ready
[INFO][CELL]: AT_CellularNetwork::clear
[INFO][CELL]: AT TX (11): AT+CGDCONT?
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 8): <cr><ln>+CME E
[INFO][CELL]: AT RX ( 9): RROR: 3<cr><ln>
[WARN][CELL]: AT error code 3
[DBG ][CELL]: AT error -3012
[WARN][CELL]: CellularDevice clear failed

same thing happes in setting up

mbed-os/features/cellular/framework/targets/UBLOX/AT/UBLOX_AT.cpp

Line 123 in 8f1bf43

nsapi_error_t UBLOX_AT::config_authentication_parameters()

again it's related to PDP and fails, fortunatelly UBLOX_AT::init() can be overriden but still it's not ideal

[0xc0170]

@pilotak What is an issue here - is it generic problem in cellular network or ublox related?

[0xc0170]

cc @ARMmbed/team-ublox

[pilotak]

Hard to judge if this is an ublox related or generic. It happens on ublox but error is in AT_CellularNetwork

Second part of issue if definitely ublox related it was discussed here #11170 (comment) but with no thoughts on this PDP issue

[fahimalavi]

@pilotak can you please attached full logs ? It will be helpful to narrow down. Meanwhile we are trying to reproduce the issue.

Internal reference ticket PGM_NO_MBD-281 and PGM_NO_MBD-282.

[pilotak]

[INFO][CELL]: New CellularContext  (0x200082a8)
[INFO][CELL]: CellularContext set blocking 0
[INFO][CELL]: CellularContext connect
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[INFO][CELL]: Start connecting (timeout 1000 ms)
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[DBG ][CELL]: AT error -3012
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 2): AT
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[DBG ][CELL]: Init => Device ready
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[DBG ][CELL]: AT flush
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 2): AT
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[INFO][CELL]: AT TX ( 4): ATE0
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 2): AT
[INFO][CELL]: AT RX ( 2): E0
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[INFO][CELL]: AT TX ( 9): AT+CMEE=1
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX ( 5): <ln>OK<cr><ln>
[INFO][CELL]: AT TX ( 9): AT+CFUN=1
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[INFO][CELL]: Modem ready
[INFO][CELL]: AT_CellularNetwork::clear
[INFO][CELL]: AT TX (11): AT+CGDCONT?
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX (16): <ln>+CME ERROR: 3<cr><ln>
[WARN][CELL]: AT error code 3
[DBG ][CELL]: AT error -3012
[WARN][CELL]: CellularDevice clear failed
[WARN][CELL]: Power cycle CellularDevice and restart connecting
[INFO][CELL]: AT TX (10): AT+CPWROFF
[INFO][CELL]: AT TX ( 1): <cr>
[DBG ][CELL]: Device ready => Init
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[INFO][CELL]: Start connecting (timeout 1000 ms)
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 5): <cr><ln>OK<cr>
[INFO][CELL]: AT RX ( 1): <ln>
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 4): <cr><ln>OK
[INFO][CELL]: AT RX ( 2): <cr><ln>
[DBG ][CELL]: Init => Device ready
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[WARN][CELL]: URC already added with prefix: +CGEV: NW DEACT
[WARN][CELL]: URC already added with prefix: +CGEV: ME DEACT
[WARN][CELL]: URC already added with prefix: +CGEV: NW PDN D
[WARN][CELL]: URC already added with prefix: +CGEV: ME PDN D
[DBG ][CELL]: AT flush
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 3): <cr><ln>O
[INFO][CELL]: AT RX ( 3): K<cr><ln>
[INFO][CELL]: AT TX ( 4): ATE0
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 1): <FC>
[DBG ][CELL]: AT error -3012
[DBG ][CELL]: Device ready => Init
[DBG ][CELL]: AT OoB readable 0, len 1
[DBG ][CELL]: AT OoB done
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[INFO][CELL]: Start connecting (timeout 1000 ms)
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[DBG ][CELL]: AT error -3012
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[DBG ][CELL]: AT error -3012
[DBG ][CELL]: Init => Power
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[INFO][CELL]: Modem power ON (timeout 1000 ms)
[DBG ][CELL]: Power => Device ready
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[DBG ][CELL]: Device was not ready, calling soft_power_on()
[WARN][CELL]: URC already added with prefix: +CGEV: NW DEACT
[WARN][CELL]: URC already added with prefix: +CGEV: ME DEACT
[WARN][CELL]: URC already added with prefix: +CGEV: NW PDN D
[WARN][CELL]: URC already added with prefix: +CGEV: ME PDN D
[DBG ][CELL]: AT flush
[INFO][CELL]: AT RX ( 1): <FC>
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 2): AT
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[INFO][CELL]: AT TX ( 4): ATE0
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 2): A\
[INFO][CELL]: AT RX ( 3): E0<cr>
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX ( 5): <ln>OK<cr><ln>
[INFO][CELL]: AT TX ( 9): AT+CMEE=1
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 5): <cr><ln>OK<cr>
[INFO][CELL]: AT RX ( 1): <ln>
[INFO][CELL]: AT TX ( 9): AT+CFUN=1
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[INFO][CELL]: Modem ready
[INFO][CELL]: AT_CellularNetwork::clear
[INFO][CELL]: AT TX (11): AT+CGDCONT?
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX (10): <cr><ln>+CME ERR
[INFO][CELL]: AT RX ( 7): OR: 3<cr><ln>
[WARN][CELL]: AT error code 3
[DBG ][CELL]: AT error -3012
[WARN][CELL]: CellularDevice clear failed
[WARN][CELL]: Power cycle CellularDevice and restart connecting
[INFO][CELL]: AT TX (10): AT+CPWROFF
[INFO][CELL]: AT TX ( 1): <cr>
[DBG ][CELL]: Device ready => Init
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[INFO][CELL]: Start connecting (timeout 1000 ms)
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 3): <cr><ln>O
[INFO][CELL]: AT RX ( 3): K<cr><ln>
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[DBG ][CELL]: Init => Device ready
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[WARN][CELL]: URC already added with prefix: +CGEV: NW DEACT
[WARN][CELL]: URC already added with prefix: +CGEV: ME DEACT
[WARN][CELL]: URC already added with prefix: +CGEV: NW PDN D
[WARN][CELL]: URC already added with prefix: +CGEV: ME PDN D
[DBG ][CELL]: AT flush
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[INFO][CELL]: AT TX ( 4): ATE0
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 1): <F8>
[DBG ][CELL]: AT error -3012
[DBG ][CELL]: Device ready => Init
[DBG ][CELL]: AT OoB readable 0, len 1
[DBG ][CELL]: AT OoB done
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[INFO][CELL]: Start connecting (timeout 1000 ms)
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[DBG ][CELL]: AT error -3012
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[DBG ][CELL]: AT error -3012
[DBG ][CELL]: Init => Power
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[INFO][CELL]: Modem power ON (timeout 1000 ms)
[DBG ][CELL]: Power => Device ready
[DBG ][CELL]: callback: 4106, err: 0, data: 4096
[DBG ][CELL]: Device was not ready, calling soft_power_on()
[WARN][CELL]: URC already added with prefix: +CGEV: NW DEACT
[WARN][CELL]: URC already added with prefix: +CGEV: ME DEACT
[WARN][CELL]: URC already added with prefix: +CGEV: NW PDN D
[WARN][CELL]: URC already added with prefix: +CGEV: ME PDN D
[DBG ][CELL]: AT flush
[INFO][CELL]: AT RX ( 1): <FC>
[INFO][CELL]: AT TX ( 2): AT
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 2): AT
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[INFO][CELL]: AT TX ( 4): ATE0
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 2): A\
[INFO][CELL]: AT RX ( 3): E0<cr>
[INFO][CELL]: AT RX ( 1): <cr>
[INFO][CELL]: AT RX ( 5): <ln>OK<cr><ln>
[INFO][CELL]: AT TX ( 9): AT+CMEE=1
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 5): <cr><ln>OK<cr>
[INFO][CELL]: AT RX ( 1): <ln>
[INFO][CELL]: AT TX ( 9): AT+CFUN=1
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX ( 6): <cr><ln>OK<cr><ln>
[INFO][CELL]: Modem ready
[INFO][CELL]: AT_CellularNetwork::clear
[INFO][CELL]: AT TX (11): AT+CGDCONT?
[INFO][CELL]: AT TX ( 1): <cr>
[INFO][CELL]: AT RX (10): <cr><ln>+CME ERR
[INFO][CELL]: AT RX ( 7): OR: 3<cr><ln>
[WARN][CELL]: AT error code 3
[DBG ][CELL]: AT error -3012
[WARN][CELL]: CellularDevice clear failed

[ciarmcom]

Internal Jira reference: https://jira.arm.com/browse/MBOCUSTRIA-1776

[AriParkkila]

@pilotak This is fixed in PR #11469, waiting for merge now.

[pilotak]

@AriParkkila that only disables clear function but doesn't fix it. Meanwhile @fahim-ublox fixed it, thanks a lot

[pilotak]

@fahim-ublox second part of my issue is when using G350 but not on C027 init automatically goes to

mbed-os/features/cellular/framework/targets/UBLOX/AT/UBLOX_AT.cpp

Line 111 in 8f1bf43

err = _at->at_cmd_discard("+CFUN", "=4");

which is not supported on G350 . Should there not be a better way of handling modem specific code? at the moment it's tied to dev board only. In my case i have a STM32F412 & F303 with G350 and i have to override a lot function from ublox but if i could somehow specify which modem i have regardless the processor it would be more generic. And of course when i override it i can't use UBLOX_AT::config_authentication_parameters because it's private

Do you want me to create another issue? or is it ok to continue here

[fahimalavi]

@pilotak
First if it is OK for you to specify your target in targets.json such that you inherit from C027. Like what we did with UBLOX_C030_R412M

mbed-os/targets/targets.json

Line 4889 in 4f7339a

"UBLOX_C030_R412M": {

We are using same MCU on different C030s variant and while you have a different MCU for custom board. What you suggest about it ?

Second point, in any case #else in init method is a bug and need proper usage while you have created #11170, fix can be added against that issue.