How to debug print on Rigado BMD-200?

Question

Hi everyone, 
 I am using the nRF51 SDK 10.0 with the Rigado BMD-200 Evaluation Kit and want to print debug messages to UART or something similar. 
 I am trying from main my main function with 
 void debug_log_init() {
#ifdef ENABLE_DEBUG_LOG_SUPPORT
	// Initialize module
	app_trace_init();
app_trace_log("nRF51 booting.
");
#endif
}
 
 Then I am using miniterm on OSX with the following settings: 
 --- Miniterm on /dev/cu.usbmodem142311: 38400,8,N,1 --- 
 But I see nothing. No debug prints or anything. 
 Update 1: I made sure that ENABLE_DEBUG_LOG_SUPPORT is turned on, so that is definitely not the problem. 
 Update 2: 
So according to Rigado's guide at www.rigado.com/.../BMD-200-EVAL-UG-V1.0.pdf , flow control is always on.
In my custom_board.h I have: 
 #define RX_PIN_NUMBER 9
#define TX_PIN_NUMBER 10
#define CTS_PIN_NUMBER 3
#define RTS_PIN_NUMBER 2
// Hardware flow control.
#define HWFC true
 
 And then on OSX I used 
 screen -f /dev/cu.usbmodem1a121 38400
 
 to try and display the output. The -f should turn on the flow control (according to developer.apple.com/.../screen.1.html) .
However that still did not work. Screen remains entirely empty. 
 I also tried it with CTS and RTS swapped since Rigado's guide is ambiguous to me which of the two should be RTS and which one CTS, but that does not work other with all other things unchanged. 
 What am I doing wrong?
How can I print stuff?

Raphael · Accepted Answer

Together with Eric I figured out the problem: 
 I changed the pins in both nrf_drv_config.h to 
 #if (UART0_ENABLED == 1)
#define UART0_CONFIG_HWFC NRF_UART_HWFC_ENABLED
#define UART0_CONFIG_PARITY NRF_UART_PARITY_EXCLUDED
#define UART0_CONFIG_BAUDRATE NRF_UART_BAUDRATE_38400
#define UART0_CONFIG_PSEL_TXD 9
#define UART0_CONFIG_PSEL_RXD 10
#define UART0_CONFIG_PSEL_CTS 2
#define UART0_CONFIG_PSEL_RTS 3
...
 
 and in custom_board.h 
 #define RX_PIN_NUMBER 9
#define TX_PIN_NUMBER 10
#define CTS_PIN_NUMBER 2
#define RTS_PIN_NUMBER 3
// Hardware flow control.
#define HWFC true
 
 However, the most annoying and at least to me least obvious problem was that the loop code from the app_template example 
 for (;;) {
	power_manage();
}
 
 froze up the application because the SoftDevice was apparently not properly setup previously. 
 So replacing that loop in main() with: 
 for (;;) {
	nrf_delay_ms(10);
}
 
 and of course including nrf_delay.h fixed the problem and I can now see stuff in terminal (screen -f /dev/cu.usbmodem1a121 38400).