question for the example:ble_app_uart_s132_pca10036

[bernerd]

phenomenon: the program is polling in the 'uart_event_handle'

my attempt: i found that the 'uart_event_handle' is called by the 'uart_event_handler' , so the program is polling in 'the uart_event_handler', and the 'uart_event_handler' is init by the 'nrf_drv_uart_init',so the i think after this function,the program enable the uart and the program is polling in the 'uart_event_handler'.

my question:

1. why after init by the 'nrf_drv_uart_init' , the program is polling at the 'uart_event_handler'
2. is it having something to do with 'power_manage' ?

[monpetit]

The uart_event_handler is literally not a polling function but the EVENT HANDLER. It does not have own endless loop nor is it called by other functions in endless loop. It is a callback function whenever is called the data are received over UART.

[bernerd]

Thank you very much!! I will try it this afternoon.