WiFi connection fails with client compiled by IAR IDE

[SamiLappalainenArm]

Description

mbed-os-5.7.0-oob client build by IAR does not register succecfully. Succesfull registering works when GCC_ARM is used to build.

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Bug

Used git repo = mbed-os-example-client => branch mbed-os-5.7.0-oob

Used environment:

• Windows10 laptop
• K64F + ESP8266
• mbed version 1.2.0
• IAR version 7.80.1.11973

Expected Behavior
client shows "Registered object successfully!"

Actual Behavior
client shows "onnection to Network Failed - exiting application..."

Steps to Reproduce

1. compile using GCC_ARM from CLI using wifi_esp8266_v4.json configuration

2. upload .bin to K64F

3. restart K64F
   Starting mbed Client example
   [EasyConnect] IPv4 mode
   [EasyConnect] Using WiFi (ESP8266)
   [EasyConnect] Connecting to WiFi Anfield-tower
   [EasyConnect] Connected to Network successfully
   [EasyConnect] MAC address 5c:cf:7f:04:6a:f2
   [EasyConnect] IP address 192.168.43.142

   SOCKET_MODE : TCP
   Connecting to coap://api.connector.mbed.com:5684

   Registered object successfully!

4. mbed export -i IAR
   C:\siilo\git\OOB\mbed-os-example-client>mbed export -i IAR
   [mbed] Detected "K64F" connected to "E:" and using com port "COM6"
   Scan: .
   Scan: FEATURE_LWIP
   Scan: FEATURE_COMMON_PAL
   Scan: FEATURE_STORAGE

5. open workspace in IAR

6. rebuild all
   Building configuration: mbed-os-example-client - mbed-os-example-client
   Updating build tree...

   2 file(s) deleted.
   Updating build tree...
   ...
   Total number of errors: 0
   Total number of warnings: 27

7. Download and debug => Go
   Starting mbed Client example
   [EasyConnect] IPv4 mode
   [EasyConnect] Using WiFi (ESP8266)
   [EasyConnect] Connecting to WiFi Anfield-tower
   [EasyConnect] MAC address 5c:cf:7f:04:6a:f2
   [EasyConnect] Connection to Network Failed -3012!

   Connection to Network Failed - exiting application...

8. upload .bin made with GCC_ARM => restart K64F
   Starting mbed Client example
   [EasyConnect] IPv4 mode
   [EasyConnect] Using WiFi (ESP8266)
   [EasyConnect] Connecting to WiFi Anfield-tower
   [EasyConnect] Connected to Network successfully
   [EasyConnect] MAC address 5c:cf:7f:04:6a:f2
   [EasyConnect] IP address 192.168.43.142

   SOCKET_MODE : TCP
   Connecting to coap://api.connector.mbed.com:5684

   Registered object successfully!

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Enhancement

Reason to enhance/problem with existing solution

Suggested enhancement

Pros

Cons

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Question

How to?

[teetak01]

Note, it is not actually a Client issue if the network-bringup already fails. Should be reported to ESP8266 repository or to Mbed OS instead.

[ciarmcom]

ARM Internal Ref: IOTCLT-2272

[MarceloSalazar]

From the user point of view, this application is failing when using ESP8266 and IAR.
@adbridge we should consider adding this to the known issue list.

[adbridge]

@SamiLappalainenArm @MarceloSalazar Is this a problem using the IAR exporter or native IAR compilation ?

[MarceloSalazar]

It seems he is exporting to IAR IDE.
@SamiLappalainenArm could you please compile from the command line and confirm the behavior?
For example:

mbed import https://github.com/ARMmbed/mbed-os-example-client
cd mbed-os-example-client
mbed update mbed-os-5.7.0-oob 
mbed compile -t IAR -m K64F -c

This will help us to narrow down the problem. Thanks!

[SamiLappalainenArm]

I did used IAR Embedded Workbecnh IDE when I creted this ticket.

And when I used "mbed compile -t IAR -m K64F -c" command I got error "Could not find executable for IAR."

I assume that my system configuration is not correct => I will try to fix my system tomorrow.

[MarceloSalazar]

"Could not find executable for IAR."

I suspect you'll need to add IAR tools to the system path. You should be able to launch iccarm.exe from the command line.

[teetak01]

I verified that this works fine without online compiler.

[SamiLappalainenArm]

I managed to use IAR compiler via CLI and here is the client output:

Starting mbed Client example
[EasyConnect] IPv4 mode
[EasyConnect] Using WiFi (ESP8266)
[EasyConnect] Connecting to WiFi Anfield-tower
[EasyConnect] Connected to Network successfully
[EasyConnect] MAC address 5c:cf:7f:04:6a:f2
[EasyConnect] IP address 192.168.43.142

SOCKET_MODE : TCP
Connecting to coap://api.connector.mbed.com:5684

Registered object successfully!
handle_timer_click, new value of counter is 1

[MarceloSalazar]

@adbridge lets add this to the known issue list when using IAR IDE