HTTP POST with NCS v1.0.0-rc4

[Hoang]

Dear Bjørn Kvaale, 

I just tried to run LTE-M/HTTP POST with NCS v1.0.0-rc4 (with nrf git fetch origin pull/943/head:branch1)

but, I COULD NOT POST any more:

**** Booting Zephyr OS build v1.14.99-ncs2-rc4-495-ga8933a2ead01 *****
LTETESTING is starting 
 LTE is connecting........... 
Checking LTE_M signal.............

+COPS: 0,2,"24201",7

OK

OK

+CEREG: 2,1,"765D","0110C303",7

OK


Original String is: +CEREG: 2,1,"765D","0110C303",7

OK

Found the LTE_M signal 
Closing socket

  find LTE_M signal........... 
***** USAGE FAULT *****
  Illegal load of EXC_RETURN into PC
***** Hardware exception *****
Current thread ID = 0x200203a8
Faulting instruction address = 0x0
Fatal fault in thread 0x200203a8! Aborting.
Exception occurred in Secure State
***** HARD FAULT *****
  Fault escalation (see below)
***** BUS FAULT *****
  Precise data bus error
  BFAR Address: 0x50008120
***** Hardware exception *****
Current thread ID = 0x20021ae4
Faulting instruction address = 0x21992
Fatal fault in ISR! Spinning...

It worked normal with the old version v0.4.0

1. when i used the same setup, i got error: 

1> zephyr/subsys/net/ip/libsubsys__net__ip.a(net_if.c.obj): In function `net_if_ipv6_calc_reachable_time':
1> D:/hng/projects/CyCollector/ncs_v1.0.0_rc4/zephyr/subsys/net/ip/net_if.c:2067: undefined reference to `sys_rand32_get'
1> collect2.exe: error: ld returned 1 exit status

2. I added the option: 

# Disable native network stack to save some memory
CONFIG_NET_IPV4=n
CONFIG_NET_IPV6=n

then, Build Solution: Build completed

but, I got the error 

My code:

LTE_M_NB-IoT.7z

Thanks so much

Regards, 

hng

[Simon]

I am sorry for the delay. The support staff is reduced during the summer holidays, and you may experience delayed answers. Have you been able to resolve this issue?

Best regards,

Simon

[Hoang]

Hi Simon, 

I understand it, not yet

Mvh

Hoang

[Simon]

Hmm.. That is really strange. I was able to recreate the error message. I tried to minimize the project to try to locate the problem, and I eventually ended up with the following project, which was giving the same error:

#include <zephyr.h>
#include <net/socket.h>
#include <stdio.h>

int main(void)
{
     //char tmp_str2[2];
     char send_buf[4096];

     while (1) {
          
          }
	
}

However, if I set CONFIG_SIZE_OPTIMIZATION=y (and removed the optimize nothing config), then it worked fine. 

I will report the problem internally. In the mean time, I guess you have to declare tmp_str as a temporary solution.

Best regards,

Simon

[Simon]

The solution to this is to set CONFIG_NO_OPTIMIZATIONS to y, and increase the main stack size through CONFIG_MAIN_STACK_SIZE or place it in the data section instead of on the stack by declaring and initializing it outside of the main function.

Best regards,

Simon