GPRS_C_SDK
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Ai-Thinker-Open
network activate failed
1. SDK version（SDK 版本）
{
SW_V2125_csdk
}
2. In what kind of operation problems appear, and how to reproduce the problem ?（什么样的操作步骤问题会出现，是否是稳定复现，如何复现问题？）
{
In the network2 example.Module started GPRS connection successfully but after some time when network breaks the connection module is not able to establish connection.Log file attached..... GSM_A9G.txt
}
Hello, I have a same problem. There is a problem with second activation. I found the problem very irritating when changing countries and have to reconnect with other country network. It never reactivates. If I restart A9G it connects flawlessly. Any solution?
@K1ngM did you get this issue resolved?
I'm also unable to get the modem to reconnect once its been turned OFF ( deactivaed - not powered off )
thanks
Sadly no. I do it with restarting A9G. I am doing only a "proof of concept" and don't care about it anymore. After that we will get rid of A9G as soon as possible, because of lack of support and many other problems.
Have you found a better hardware product.
Besides the lack of GSM restarting i have found it quite reliable... This is just such an annoying issue
I am looking at Quectel. A9G is also quiet power hungry. You can't turn off power to an active GPS antenna. Otherwise I also have UART problem. It all adds up.
This GSM problem is a major one for me.
to get the network to reconnect i have found i need to do the following
Network_PDP_Context_t context = { .apn ="somethingwrongtomakeitfail", .userName = "", .userPasswd = "" }; Network_StartActive(context); Network_PDP_Context_t context2 = { .apn ="mobiledata", .userName = "", .userPasswd = "" }; Network_StartActive(context2); // Network_SetFlightMode(false); // worked when here OS_Sleep(3000);
Hey medida! Great job there, but could you share more detail how you did it? It doesn't work for me. On first connect it gets stuck on activating and it never connects. It returns "network register no". Am I using it right?
case API_EVENT_ID_NETWORK_ATTACHED:
Trace(2,"network attach success");
Network_PDP_Context_t context = {
.apn ="somethingwrongtomakeitfail",
.userName = "",
.userPasswd = ""
};
Network_StartActive(context);
Network_PDP_Context_t context2 = {
.apn ="internet",
.userName = "",
.userPasswd = ""
};
Network_StartActive(context2);
// Network_SetFlightMode(false); // worked when here
OS_Sleep(3000);
break;
this is the copy of the code i got from AI-Thinker for testing flight mode
#include "stdbool.h" #include "stdint.h" #include "stdio.h" #include "string.h"
#include "api_os.h" #include "api_debug.h" #include "api_event.h" #include "api_network.h" #include <api_key.h> #include <api_hal_gpio.h> #include <api_inc_gpio.h>
#define MAIN_TASK_STACK_SIZE (2048 * 2) #define MAIN_TASK_PRIORITY 0 #define MAIN_TASK_NAME "Main Test Task"
#define SECOND_TASK_STACK_SIZE (2048 * 2) #define SECOND_TASK_PRIORITY 1 #define SECOND_TASK_NAME "Second Test Task"
static HANDLE mainTaskHandle = NULL; static HANDLE secondTaskHandle = NULL; static bool flag = false;
uint8_t FlightFlag = 0; HANDLE sem1 = NULL; bool FLIGHT=false; void EventDispatch(API_Event_t* pEvent) { switch(pEvent->id) { case API_EVENT_ID_KEY_DOWN: //Trace(1,"key down, key:0x%02x",pEvent->param1); if(pEvent->param1 == KEY_POWER) { FlightFlag = !FlightFlag;
Trace(1,"power key press down now. FlightFlag: %d", FlightFlag);
}
break;
case API_EVENT_ID_NO_SIMCARD:
Trace(1,"!!NO SIM CARD%d!!!!",pEvent->param1);
break;
case API_EVENT_ID_SYSTEM_READY:
Trace(1,"system initialize complete");
break;
case API_EVENT_ID_NETWORK_REGISTERED_HOME:
case API_EVENT_ID_NETWORK_REGISTERED_ROAMING:
{
uint8_t status;
Trace(1,"network register success");
bool ret = Network_GetAttachStatus(&status);
if(!ret)
Trace(1,"get attach staus fail");
Trace(1,"attach status:%d",status);
if(status == 0)
{
ret = Network_StartAttach();
if(!ret)
{
Trace(1,"network attach fail");
}
}
else
{
Network_PDP_Context_t context = {
.apn ="mobiledata",
.userName = "" ,
.userPasswd = ""
};
Network_StartActive(context);
Trace(1,"Network_StartActive start0000");
}
break;
}
// you can press the power button goin to flight mode press again
case API_EVENT_ID_NETWORK_ATTACHED:
Trace(1,"network attach success");
uint8_t status;
bool ret = Network_GetActiveStatus(&status);
if(!ret)
Trace(1,"get active staus fail");
Trace(1,"active status:%d",status);
Network_PDP_Context_t context = {
.apn ="mobiledata",
.userName = "" ,
.userPasswd = ""
};
if(Network_StartActive(context)==true)
{
Trace(1,"Network_StartActive start1111 success");
}
else
{
Trace(1,"Network_StartActive start1111 fail");
}
ret = Network_GetActiveStatus(&status);
if(!ret)
Trace(1,"get active staus fail");
Trace(1,"active status:%d",status);
break;
case API_EVENT_ID_NETWORK_ACTIVATED:
Trace(1,"network activate success");
uint8_t status1;
bool ret1 = Network_GetActiveStatus(&status1);
if(!ret1)
Trace(1,"get active staus fail");
Trace(1,"active status:%d",status1);
sem1 = 1;
flag = true;
//if(FLIGHT ==true)
{
Trace(1,"network activate success FLIGHT ==true");
FLIGHT=false;
}
break;
case API_EVENT_ID_NETWORK_CELL_INFO:
{
uint8_t number = pEvent->param1;
Network_Location_t* location = pEvent->pParam1;
Trace(2,"network cell infomation,serving cell number:1, neighbor cell number:%d",number-1);
for(int i=0;i<number;++i)
{
Trace(2,"cell %d info:%d%d%d,%d%d%d,%d,%d,%d,%d,%d,%d",i,
location[i].sMcc[0], location[i].sMcc[1], location[i].sMcc[2],
location[i].sMnc[0], location[i].sMnc[1], location[i].sMnc[2],
location[i].sLac, location[i].sCellID, location[i].iBsic,
location[i].iRxLev, location[i].iRxLevSub, location[i].nArfcn);
}
break;
}
default:
break;
}
} uint8_t x = 0; uint8_t y = 0; int time = 0;
void CreateSem(HANDLE* sem_) { *sem_ = 0; // *sem = OS_CreateSemaphore(0); }
void WaitSem(HANDLE* sem_) { // OS_WaitForSemaphore(*sem,OS_WAIT_FOREVER); // OS_DeleteSemaphore(*sem); // *sem = NULL; while(*sem_ == 0) { //Trace(1,"FlightMode1 sem1=%d",sem1); OS_Sleep(1); }
*sem_ = 0;
}
void network_attach_activate_handle() { uint8_t status; bool ret = Network_GetAttachStatus(&status); if(!ret){ Trace(1,"get attach staus failed"); return; } Trace(1,"attach status:%d",status); if(0 == status){ ret = Network_StartAttach(); if(!ret){ Trace(1,"network attach failed"); return; } }else{ ret = Network_GetActiveStatus(&status); if(!ret){ Trace(1,"get active staus failed"); return; }
Trace(1,"active status:%d",status);
if(0 == status){
Network_PDP_Context_t context = {
.apn ="mobiledata",
.userName = "",
.userPasswd = ""
};
Network_StartActive(context);
}
}
}
void SecondTask(void *pData) {
char ip[16];
GPIO_config_t gpioInput = {
.mode = GPIO_MODE_INPUT,
.pin = GPIO_PIN4,
.defaultLevel = GPIO_LEVEL_HIGH,
};
GPIO_Init(gpioInput);
OS_Sleep(1000);
OS_Sleep(1000);
OS_Sleep(1000);
Trace(1,"Start!");
while(1)
{
uint8_t status2;
//time++;
//I check something
bool ret2 = Network_GetActiveStatus(&status2);
if(!ret2){
Trace(1,"get active staus failed");
return;
}
Trace(1," FlightMode active status:%d",status2);
//Trace(1,"FlightMode x=%d y=%d sem1=%d",x,y,sem1);
if((FlightFlag == 0)&&(x == 0)&&(FLIGHT==true) )
{
y = 0;
x = 1;
Network_PDP_Context_t context = {
.apn ="cmnet11qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", // you have something differt here???
.userName = "",
.userPasswd = ""
};
//Network_StartActive(context);
// Network_SetFlightMode(false);
Network_StartActive(context);
Network_SetFlightMode(false);
//OS_Sleep(5000);
}
else if((FlightFlag == 1)&&(y == 0) )
{
y = 1;
x = 0;
Network_SetFlightMode(true);
flag=false;//change by johhn
Trace(1,"FlightMode Open");
FLIGHT=true;
}
if(0)
{
if(Network_GetIp(ip, sizeof(ip)))
{
Trace(1,"network local ip:%s",ip);
}
else
{
Trace(1,"network get local ip address fail");
}
for(int i=0;i<10;++i)
{
if(!Network_GetCellInfoRequst())
{
Trace(1,"network get cell info fail");
}
OS_Sleep(5000);
}
flag = false;
}
OS_Sleep(1000);
}
}
void MainTask(void pData) { API_Event_t event=NULL;
secondTaskHandle = OS_CreateTask(SecondTask,
NULL, NULL, SECOND_TASK_STACK_SIZE, SECOND_TASK_PRIORITY, 0, 0, SECOND_TASK_NAME);
while(1)
{
if(OS_WaitEvent(mainTaskHandle, (void**)&event, OS_TIME_OUT_WAIT_FOREVER))
{
EventDispatch(event);
OS_Free(event->pParam1);
OS_Free(event->pParam2);
OS_Free(event);
Trace(1, "Main OS wait Task");
}
}
}
void flight_mode_Main(void) { mainTaskHandle = OS_CreateTask(MainTask , NULL, NULL, MAIN_TASK_STACK_SIZE, MAIN_TASK_PRIORITY, 0, 0, MAIN_TASK_NAME); OS_SetUserMainHandle(&mainTaskHandle); }
Hi @yennhan1211 - my code from above was the only solution i found.
Depending upon what you want to do with the device - they are VERY power hungry.
Hi @yennhan1211 - my code from above was the only solution i found.
Depending upon what you want to do with the device - they are VERY power hungry.
@medida , thanks for your support, I dont face the problem with the power consumption. But, sometime it deactivated from the network when operate in long time, and cannot reactive at the second time. Did you try to reactive device when it deactivated.
@yennhan1211 i forced the device to try and connect with the WRONG APN details
Network_PDP_Context_t context = { .apn ="cmnet11qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", // you have something differt here??? .userName = "", .userPasswd = "" };
then i try and and connect in the normal way byt the code going through 'void network_attach_activate_handle()'
I do not know why the device would not re-connect to the network again with out this.... but i have since moved away from this device. I've had a few to play with and one has died without any warning. And for my application they used too much power when in sleep mode.
How about calling Network_StartDetach() and then Network_StartAttach() again? Might work too, but I cant test it
to get the network to reconnect i have found i need to do the following
Network_PDP_Context_t context = { .apn ="somethingwrongtomakeitfail", .userName = "", .userPasswd = "" }; Network_StartActive(context); Network_PDP_Context_t context2 = { .apn ="mobiledata", .userName = "", .userPasswd = "" }; Network_StartActive(context2); // Network_SetFlightMode(false); // worked when here OS_Sleep(3000);
Hi @medida . I tried to do this in my code, and it didn't work. I also tried the following code, without success:
Network_PDP_Context_t context = {
.apn = PDP_CONTEXT_APN,
.userName = PDP_CONTEXT_USERNAME,
.userPasswd = PDP_CONTEXT_PASSWD
};
Network_StartDeactive(1);
OS_Sleep(500);
Network_StartActive(context);
I can just reconnect the network by forcing a restart after some time, using the PM_Restart() function.
Does anyone have another solution?
