I want to implement UART support in the S310 ble_ant_app_hrm example to pipe out the heart rate through UART as well as Bluetooth.
I attempted to set up UART with both simple_uart and app_uart. There is no error returned durring init however if I attempt a printf or a simple_uart_putstring the program hangs and advertising never starts.
Once I comment out the printf or the simple_uart_putstring the program functions as expected.
Any ideas?