CCS/CC2640R2F: CC2640R2: System_printf cannot print message to Console on debugger

Tool/software: Code Composer Studio

    When I add System_printf and System_flush function into simple_peripheral project ,System_printf("hello world\n") cannot print message to Console on debugger. There is no console window named in "ble5_simple_peripheral_cc2640r2lp_app:CIO" either, as shown is picture 1 .

    Where am I wrong?

picture 1

My steps of adding System_printf function into simple_peripheral project is as followed:

1、Add header files , System_printf and System_flush in simple_peripheral.c:

/*********************** simple_peripheral.c ******************************/
/* XDC Module Headers */
#include <xdc/std.h>
#include <xdc/runtime/System.h>

/* BIOS Module Headers */
#include <ti/sysbios/BIOS.h>

static void SimpleBLEPeripheral_init(void)
{
  ......
  // Start the GAPRole
  VOID GAPRole_StartDevice(&SimpleBLEPeripheral_gapRoleCBs);

  System_printf("hello world\n");
  System_flush();
}

2、Add configuring funcitons in app_ble.cfg

/*********************** app_ble.cfg ******************************/
var SysStd = xdc.useModule('xdc.runtime.SysStd');
var System = xdc.useModule('xdc.runtime.System');

System.SupportProxy = SysStd;

utils.importFile("common/cc26xx/kernel/cc2640/config/cc2640_r2_csdk.cfg");
utils.importFile("common/cc26xx/kernel/cc2640/config/ble_stack_heap.cfg");

Attachments:
1、the positon of simple_peripheral project in my computer is as followed:
C:\ti\simplelink_cc2640r2_sdk_1_40_00_45\examples\rtos\CC2640R2_LAUNCHXL\ble5stack\simple_peripheral

2、my complete workspace can be downloaded from here:

CCSworkspace134.rar

3、you can download the project in simplelink_cc2640r2_sdk_1_40_00_45 from the following website:

4、my develop invironment:
CCS:Code Composer Studio 7.2.0
SDK:simplelink_cc2640r2_sdk_1_40_00_45
hardware:CC26640R2 develop kit