AVR Freaks

I am reading the incoming signal from the bluetooth with a serial converter. The bluetooth is connected through UART to the MCU. On the Rx pin of the MCU I have also the RX of the serial converter and I receive the text sent from the phone.

ex: an interrupt is generated when the phone is connected to the bluetooth module

Yes it is , before the MCU hangs up I can check if the interrupt is generated. Also the bluetooth has a led for connection.

So instrument the state machine to allow you to see what state it's in. 

I am using a led for this issue and I see when the state changes, and it is able to do this .

Usually when it is working as soon as I connect the phone to the module, it exits sleep mode.

I said usually by mistake, every time I connect the phone , before this error occurs , it works.

We're going to need to see code, schematics and preferably the smallest cut down code that still exhibits the same fault. In preparing the latter you will likely find the issue anyway!

 

 

I was thinking that this is the next step, but I am not able to post any code or any schematic here. I am trying to find some clues where to find. I am also thinking at some memory corruption. Is it anyway to check the memory state, or the memory usage time to time. I am thinking at some pointers badly mannered, or some stack overflows, but I am not sure. I lost a lot of time trying to identify the problem. Also if anyone want to see the code, we can use some remote control programs.  

I need to mention that I do not have access to debug. I am programming through ISP.

I downloaded the files included in my project and called only the function StackCount. I receive value 0 no matter what I do , even if I call the function right after port initialization, without calling any function. What am I doing wrong?

Ok. I added the folders to my project, I included them and I did the next things:

#include "string.h"
#include <avr/wdt.h>
#include "stackmon.h"


void StackPaint(void) __attribute__ ((naked)) __attribute__ ((section (".init3")));

first part .

memorySpace=StackCount();
	printf("Valoare %d\r\n",memorySpace);

second one

I am trying to implement the stackCount , but I had no success so far. I don`t know how to do it.

For me it does not look so good, I think i know the function that writes that part of memory.

Long time since I wrote here. I still was not able to find the problem. Due to the fact I cannot post the code here, I will try to rename the functions, so i can post it, and maybe someone sees the leak I am not able to see.

case STATE1:{
static int state1Counter=0;
led_color(STATE1);
// state1Counter>a*100 pentru un a=10 avem aprox 1 minut pana intra in lock si sleep

if (atoi(g_data.var1) >5){
state1Counter=0;
}
if (Connexion==1){
state1Counter=0;

}
/
if( function1( function1_var1, function1_var2, function1_var3)){
states=STATE4;
accidentState=1;
led_color(STATE4);
}
if(flagFunction==1){
GP_function1(&g_data,nmea_msg,"RMC",msg2);
GP_function2(&g_data);
clear_vector_dimension((unsigned char*)nmea_msg,300);
flagFunction=0;
}
//sms read
if (messageReceivedUart1 == 1){
function2();
function3( &states,states,g_data,p_numbers.uNumber,index_sms);
messageReceivedUart1=0;
clear_rx_buffer(msg1,&msg1_contor,&messageReceivedUart1);
clear_vector_dimension((unsigned char*)msg1,200);
SMSreceived=0;
}
//citiri de date de la BLE
if (uart_test()>0){
//bt_string_correction(&BTJustConnected);
get_line(msg0,Line);

if (get_cmd_type1(msg0)==2){
if (function4(&states,get_cmd_subtype(msg0))==1) continue;
if (function5(&states,get_cmd_subtype(msg0))==1) continue;
if (function6(&states,get_cmd_subtype(msg0))==1) continue;
if (function7(states,get_cmd_subtype(msg0))==1) continue;
if (function8(&states,get_cmd_subtype(msg0))) continue;
if (function9(get_cmd_subtype(msg0))) continue;
if (function10(get_cmd_subtype(msg0))) continue;
if (function11(get_cmd_subtype(msg0))) continue;
if (function12(get_cmd_subtype(msg0))) continue;

}
//date eeeprom
}
clear_rx_buffer(msg0,&msg0_contor,&messageReceivedUart0);
clear_vector_dimension(msg0,200);
}
if(peripheral_function1(&qw, &qx,&qy,&qz,&vx,&vy,&vz)) {
peripheral_function2(qw, qx, qy, qz, &function1_var1, &function1_var2, &function1_var3);
peripheral_function3(&vxg,&vyg,&vzg,qw,qx,qy,qz);
peripheral_function4(&XTh,&YTh,&ZTh,vxg,vyg,vzg,vx,vy,vz);
function1_var1=function1_var1-function1_var1Offset;
function1_var2=function1_var2-function1_var2Offset;
}
//led[0].r=0;led[0].g=0;led[0].b=100;
//ws2812_setleds(led,2);
//_delay_ms(400);
state1Counter++;
if(state1Counter>20*100){
//PORTA&= ~(1<<7);
//sendSMS_input_text(p_numbers.uNumber,"Your motorcycle will automatically lock","OK",50,msg1,&messageReceivedUart1,&msg1_contor);
//PORTA|=(1<<7);
led_color(STATE2);
state1Counter=0;
states=STATE2;
}
_delay_ms(20);
break;
}





-------------------------------------------------------------


case STATE3:{
led_color(STATE3);
static int i=0;
char s[11];

if (Connexion==0){
states=STATE1;
led[0].r=0;led[0].g=255;led[0].b=0;
ws2812_setleds(led,2);

}
if( function1( function1_var1, function1_var2, function1_var3)){
states=STATE4;
accidentState=1;
led[0].r=255;led[0].g=0;led[0].b=0;
ws2812_setleds(led,2);
}
if(flagFunction==1){
//printf("Nmea mesaj este %s\r\n",nmea_msg);
GP_function1(&g_data,nmea_msg,"RMC",msg2);
////////printf("valoare latitudinii%s\r\n",gps_data.var2);
GP_function2(&g_data);
clear_vector_dimension(nmea_msg,300);
flagFunction=0;
}
if (i>=STATE3_FREQ_500ms){
//memorySpace=StackCount();
//printf("Valoare %d\r\n",memorySpace);
if(peripheral_function1(&qw, &qx,&qy,&qz,&vx,&vy,&vz) == 1) {
peripheral_function3(&vxg,&vyg,&vzg,qw,qx,qy,qz);
peripheral_function4(&XTh,&YTh,&ZTh,vxg,vyg,vzg,vx,vy,vz);
function1_var1=function1_var1-function1_var1Offset;
function1_var2=function1_var2-function1_var2Offset;
}
clear_tlmdata(&datetel);
_delay_ms(1);
strcpy(datetel.var2,g_data.var2);
strcpy(datetel.var3,g_data.var3);
strcpy(datetel.var1,g_data.var1);
sprintf(s,"%f",FxTh);
strcpy(datetel.var4,s);
memcpy(s,0,strlen(s));
sprintf(s,"%f",(function1_var1));
strcpy(datetel.function1_var1,s);
memcpy(s,0,strlen(s));
sprintf(s,"%f",(function1_var2));
strcpy(datetel.function1_var2,s);
memcpy(s,0,strlen(s));

send_command_4(datetel);
i=0;
}

if (uart_test()>0){
get_line(msg0,Line);
_delay_ms(10);
if (get_cmd_type(msg0)==2){
//bt_telemetric_data_off(&states,get_cmd_subtype(msg0));
//function5(&states,get_cmd_subtype(msg0));
//function6(&states,get_cmd_subtype(msg0));
if (function7(states,get_cmd_subtype(msg0))==1) continue;
if (function5(&states,get_cmd_subtype(msg0))==1) continue;
if (function6(&states,get_cmd_subtype(msg0))==1) continue;
}

clear_rx_buffer(msg0,&msg0_contor,&messageReceivedUart0);
clear_vector_dimension(msg0,200);
}
_delay_ms(10);
i++;
break;
}

I will try to explain what happens. In the second state the MCU works without anyproblem. It is running without any restart for a log time. When I am keeping the MCU in the second state , with the Connexion flag TRUE in order not to change its state, after 3 and a half minutes it automatically restart. I added code which makes every restart report me what was the cause of restart. Apparently none of the restarts which can be tracked with MCUSR is there. The question is why ?:( Hope the code is understandable. Normally I would have sent the clear code , but i am not able to do this. Thank you very much.

Actually I tried with my dragon to debug. But it always restart and i don`t know how to catch it.

I will do this as soon as i get home. And after that how can i track it backwards?