Scrambled output via serial port (bypass encoded trace output)

[user_2112781]

Hello,

I'm getting strange output when I try to display the trace of a BLE application over the serial USB cable.

I'm using the right settings (115200n8) and I tried with different tools (miniterm.py, screen, gtkterm) under Mac, Windows and Linux.

I get some output that makes sense and some that is completely hazardous (non ASCII characters)

Here is the output of hello_sensor:

Broadcom Debug Port: BLEAPP CFA d�hello_senso����02 16 00 00 2a �48 65 6c 6c 6f 00 00 00 00 00 00 00 00 00 00 00 �02 18 00 01 2a ����23 20 56 7c 05 cf 6e b4 c3 41 77 28 51 82 7e 1b �32 2f2 9b 5e ���0a 18 �02 4f 00 29 2a �42 72 6f 61 64 63 6f 6d �02 51 00 24 2a �31 32 33 34 00 00 00 00 �02 53 00 23 2a �93 b8 63 80 5f 9f 91 71 �0f 18 �02 63 00 19 2a �64 02 01 06 03 19 00  permission check retCode = 00 23 20 56 7c 05 cf 6e b4 c3 41 77 28 51 82 7e 1b �02 01 05 11 0blecm evt handl01 0a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hello_sensor_timeout:hello_sensor_timeout:1

                                                                            hello_sensor_timeout:2

     hello_sensor_timeout:hello_sensor_timeout:4

                                                hello_sensor_timeout:5

                                                                      hello_sensor_timeout:6

                                                                                            hello_sensor_timeout:hello_sensor_timeouthello_sensor_timeout:9

                                                              hello_sensor_timeout:10

                                                                                     hello_sensor_timeout:11

               hello_sensor_timeout:1hello_sensor_timeout:13

                                                            hello_sensor_timeout:1hello_sensor_timeout:15

            hello_sensor_timeout:16hello_sensor_timeout:17

                                                          hello_sensor_timeout:18hello_sensor_timeout:hello_sensor_timeout:20hello_sensor_timeout:21

                                                       hello_sensor_timeout:hello_sensor_timeout:23

      hello_sensor_timeout:24

Does anybody has an idea of what could be wrong ?