[nRF51-ble-app-uart-static-passkey] Calling app_timer_start at BLE_GAP_EVT_CONNECTED

Question

Using, 
 
 
 IAR EWARM 7.20 
 
 
 PCA10001 V 2.0.0 (Changed the MCU to QFAAH00 Revision 3) 
 
 
 SDK 7.2 
 
 
 SoftDevice S110 7.1 
 
 
 Example: nRF51-ble-app-uart-static-passkey 
 
 
 /**********************************************************/ 
 Hi, I modified some codes of main.c . main_edited.c 
 This file can be compiled after adding ble_dis.c . 
 The main changes are 
 
 
 
 Changing device name, added DIS (Device Info Service) and infinite advertising. 
 
 This timer starts after connection / disconnection. The call of the timeout handler can be observed from the LEDs. 
 
 
 Added a timer. This timer just makes the LED 0, LED 1 to blink 
 
 
 
 Edited passkey properly for SDK7.2. 
 
 
 
 
 Enabled whitelist advertising 
 
 
 If a NUS packet was sent from the central, it echoes back the same packet. 
 
 
 This is for checking the connection. 
 /**********************************************************/ 
 One surprising this is that 
 the test_timer_timeout is not called after the BLE_GAP_EVT_CONNECTED . 
 I made the timer to start after connection, but I observed that RTC1_IRQHandler wasn't called. 
 However, the disconnection event called test_timer_timeout . 
 Why RTC1_IRQHandler isn't called after connection event happened? 
 Although I changed the timeout_ticks for app_timer_start and enabled the scheduler, the result was same. 
 Is there a change to be done in order to trigger RTC1_IRQHandler after connection? 
 -Regards, Mango

FormerMember · Accepted Answer

For development, I would recommend you to use the latest version of the SDK, v10.0.0, and implement static passkey , and the timer. Adding static passkey should be fairly straight forward, and should be very similar to the github example. 
 With SDK 10.0.0, the timer should be implemented the following way: 
 1) Define the timer as a static variable: APP_TIMER_DEF(m_connected_timer_test_id); 
 2) Initialize and create the timer in main(): 
 int main(void)
{
 ...
 
 // Initialize.
 APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
 ...
	err_code = app_timer_create(&m_connected_timer_test_id, APP_TIMER_MODE_SINGLE_SHOT, connected_timer_test_timeout_handler);
	APP_ERROR_CHECK(err_code);
	
 ...
 
 // Enter main loop.
 for (;;)
 {
 power_manage();
 }
}
 
 3) Create timeout handler 
 static void connected_timer_test_timeout_handler(void * p_context)
{
 uint32_t err_code;
 err_code = bsp_indication_set(BSP_INDICATE_ALERT_3);
 APP_ERROR_CHECK(err_code);
}
 
 4) Start the timer where you need it, for example in BLE_GAP_EVT_CONNECTED: 
 err_code = app_timer_start(m_connected_timer_test_id, timeout_ticks, NULL); 
APP_ERROR_CHECK(err_code);