Hello everyone,
there seems to be an issue with my programm I am unable to solve. When I flash/reset the thingy via VSCode with Segger J-Link mini EDU and USB it boots just fine and the application runs even if I disconnect it after. But if I try to reset it just with the J-link without the USB or simply by a power-on reset it doesn't do anything.
The battery is fine and when f.e. the blinky demo is flashed it works without issues. What am I missing?
Thanks for your help.
The app is supposed to first connect to the network, then measure the airquality and send a message via MQTT. After that go to sleep for 5 mins and repeat.
This is my main():
void main(void)
{
k_msleep(500); //tested if delaying helps
gpio_pin_configure_dt(&red_led, GPIO_OUTPUT_ACTIVE);
/*Initialisierung und Aufbau der Internetverbindung*/
int err;
printk("Connecting to LTE network. This may take a few minutes...\n");
k_msleep(500); //tested if delaying helps
err = lte_lc_init_and_connect_async(lte_handler);
if (err) {
printk("lte_lc_init_and_connect_async, error: %d\n", err);
return;
}
err = lte_lc_psm_req(true); //enabling PSM
if (err) {
printk("lte_lc_psm_req, error: %d\n", err);
return;
}
k_sem_take(<e_connected, K_FOREVER);
gpio_pin_configure_dt(&red_led, GPIO_OUTPUT_INACTIVE);
/*Abarbeitung des weiterführenden Programms*/
printMessageConnection();
connectedLED();
sensINIT();
err = client_init(&client);
if (err) {
printk("Failed to initialize MQTT client: %d\n", err);
return;
}
do_connect:
err = mqtt_connect(&client);
if (err) {
printk("Error in mqtt_connect: %d\n", err);
goto do_connect;
}
err = fds_init(&client,&fds);
if (err) {
printk("Error in fds_init: %d\n", err);
return;
}
while(1){
err = poll(&fds, 1, mqtt_keepalive_time_left(&client));
if (err < 0) {
printk("Error in poll(): %d\n", errno);
break;
}
err = mqtt_live(&client);
if ((err != 0) && (err != -EAGAIN)) {
printk("Error in mqtt_live: %d\n", err);
break;
}
if ((fds.revents & POLLIN) == POLLIN) {
err = mqtt_input(&client);
if (err != 0) {
printk("Error in mqtt_input: %d\n", err);
break;
}
}
if ((fds.revents & POLLERR) == POLLERR) {
printk("POLLERR\n");
break;
}
if ((fds.revents & POLLNVAL) == POLLNVAL) {
printk("POLLNVAL\n");
break;
}
airQualLED();
sensValues();
sendMsg();
k_sleep(K_MINUTES(MAIN_SLEEP));
}
printk("Disconnecting MQTT client\n");
err = mqtt_disconnect(&client);
if (err) {
printk("Could not disconnect MQTT client: %d\n", err);
}
goto do_connect;
}
