Hello,
I am using nrf52840 and SDK 16.0.0
I have integrated two examples, ble_app_template and nrf_calendar example. Now I have a problem. I wanna update the manufacturer specific data every 1 sec, so I put the advertisement update function(advertisement_update()) inside the callback function so that the advertisement_update() can be called every 1 sec. My code looks like below. (advertising_init() , advertisement_update(), callback function, and main())
/**@brief Function for initializing the Advertising functionality.
*/
static void advertising_init(void)
{
ret_code_t err_code;
ble_advertising_init_t init; // Struct containing advertising parameters
// Build advertising data struct to pass into @ref ble_advertising_init.
memset(&init, 0, sizeof(init));
ble_advdata_manuf_data_t manuf_data; // Variable to hold manufacturer specific data
uint8_t eg_data[] = {0x12, 0x34, 0x56}; // Our data to advertise
manuf_data.company_identifier = 0x0059; // Nordics company ID
manuf_data.data.p_data = eg_data;
manuf_data.data.size = sizeof(eg_data);
init.advdata.p_manuf_specific_data = &manuf_data;
init.advdata.name_type = BLE_ADVDATA_SHORT_NAME; // Use a shortened name
init.advdata.short_name_len = 5; // Advertise only first 8 letters of name
init.advdata.include_appearance = false;
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
init.advdata.uuids_complete.p_uuids = m_adv_uuids;
init.config.ble_adv_fast_enabled = true;
init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
init.config.ble_adv_fast_timeout = APP_ADV_DURATION;
init.evt_handler = on_adv_evt;
err_code = ble_advertising_init(&m_advertising, &init);
APP_ERROR_CHECK(err_code);
ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}
/**@ Function for updating Timestamp data **/
static void advertising_update(void)
{
ret_code_t err_code;
static ble_advdata_t new_data; // SDK 16.x.x implementation is similar to advertising_init
// Variables used for manufacturer specific data
ble_advdata_manuf_data_t manuf_data_2;
uint8_t timestamp_data[4];
// Encoding the timestamp
uint8_t *time_ptr = timestamp_encode(nrf_cal_get_time()->tm_mon,
nrf_cal_get_time()->tm_mday,
nrf_cal_get_time()->tm_hour,
nrf_cal_get_time()->tm_min,
nrf_cal_get_time()->tm_sec);
// Encoded timestamp into the data buffer.
timestamp_data[0] = *(time_ptr);
timestamp_data[1] = *(time_ptr+1);
timestamp_data[2] = *(time_ptr+2);
timestamp_data[3] = *(time_ptr+3);
manuf_data_2.company_identifier = 0x0059;
manuf_data_2.data.p_data = timestamp_data;
manuf_data_2.data.size = sizeof(timestamp_data);
new_data.p_manuf_specific_data = &manuf_data_2;
new_data.name_type = BLE_ADVDATA_SHORT_NAME;
new_data.short_name_len = 5;
new_data.include_appearance = false;
new_data.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
new_data.uuids_complete.uuid_cnt = 0;
new_data.uuids_complete.p_uuids = m_adv_uuids;
//SDK16.x.x implementation will handle all buffering and encoding inside the update function
err_code = ble_advertising_advdata_update(&m_advertising, &new_data, NULL);
APP_ERROR_CHECK(err_code);
}
// Function to call back every 1 sec
void calendar_stamp_update()
{
advertising_update();
if(run_time_updates)
{
print_current_time();
}
}
// Main function
int main(void)
{
bool erase_bonds;
/** Calendar example merging starts from here **/
uint8_t uart_byte;
uint32_t year, month, day, hour, minute, second;
NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;
NRF_CLOCK->TASKS_HFCLKSTART = 1;
while(NRF_CLOCK->EVENTS_HFCLKSTARTED == 0);
nrf_cal_init();
nrf_cal_set_callback(calendar_stamp_update, 1);
uart_init();
/** Ble example code starts from here **/
// Initialize.
//log_init();
timers_init();
buttons_leds_init(&erase_bonds);
power_management_init();
ble_stack_init();
gap_params_init();
gatt_init();
advertising_init();
services_init();
conn_params_init();
peer_manager_init();
// Start execution.
//NRF_LOG_INFO("Template example started.");
application_timers_start();
advertising_start(erase_bonds);
/** Calendar example **/
printf("\r\nCalendar demo\r\n\n");
printf("s - Set time\r\n");
printf("g - Get time\r\n");
printf("r - Run continuous time updates\r\n\n");
while (true)
{
if(app_uart_get(&uart_byte) == NRF_SUCCESS)
{
switch(uart_byte)
{
case 's':
run_time_updates = false;
year = (uint32_t)uart_get_parameter("Enter year", 1970, 2100);
month = (uint32_t)uart_get_parameter("Enter month", 0, 11);
day = (uint32_t)uart_get_parameter("Enter day", 1, 31);
hour = (uint32_t)uart_get_parameter("Enter hour", 0, 23);
minute = (uint32_t)uart_get_parameter("Enter minute", 0, 59);
second = (uint32_t)uart_get_parameter("Enter second", 0, 59);
nrf_cal_set_time(year, month, day, hour, minute, second);
printf("Time set: ");
printf("%s", nrf_cal_get_time_string(false));
printf("\r\n\n");
break;
case 'g':
print_current_time();
//advertising_update_mfg_data();
break;
case 'r':
run_time_updates = !run_time_updates;
printf(run_time_updates ? "Time updates on\r\n" : "Time updates off\r\n");
break;
}
}
}
// Enter main loop.
for (;;)
{
idle_state_handle();
}
}
Problem #1
Whenever I reboot and try to execute nrf_set_callback() inside main(), it stops running and always returns NRF_BREAKPOINT_COND. What more confused me is when I put the advertisement_update() on the just main function (not inside the callback) it updates the data without any error.
void nrf_cal_set_callback(void (*callback)(void), uint32_t interval)
{
// Set the calendar callback, and set the callback interval in seconds
cal_event_callback = callback;
m_rtc_increment = interval;
m_time += CAL_RTC->COUNTER / 8;
CAL_RTC->TASKS_CLEAR = 1;
CAL_RTC->CC[0] = interval * 8;
}
Problem #2
When I tried to merge the two examples before, I had to change the RTC setting in nrf_calendar example from RTC0 to RTC2, because RTO0 was already used by SoftDevice in ble_app_template example. I was trying to use RTC1 so I did like below in nrf_calendar.h
#define CAL_RTC NRF_RTC1 #define CAL_RTC_IRQn RTC1_IRQn #define CAL_RTC_IRQHandler RTC1_IRQHandler #define CAL_RTC_IRQ_Priority 3
but the compile failed like below. I have no idea what that means. I appreciate if you could you explain it to me?
Always thanks to Nordic support team. Thanks !!
