uart console strange system messages

Development Boards
1

Hello I try to use simple UART monitor to see the output form the Red-V / sparkfun thing plus v board. After the flashing i get following error message:

␛[1F␛[0J␛[?25h␛[0;39;49mBench Clock Reset Complete
ATE0–>Send Flag Timed Out Busy. Giving Up.
Send Flag error: #0 #0 #0 #0 AT+BLEINIT=0–>Send Flag Timed Out Busy. Giving Up.
Send Flag error: #0 #0 #0 #0 AT+CWMODE=0–> Send Flag error: #0 #0 #0 #0

RED-V Example: Blink

how shall I interpret it?

The existing terminal are below the message is printed out eventually on the ACM0. In addition if i observe the power on more close between flashing and “blinking led” the device had few resets. What do i miss?

— Available ports:

— 1: /dev/ttyACM0 ‘J-Link - CDC’

— 2: /dev/ttyACM1 ‘J-Link - CDC’

— Enter port index or full name: 1

— Miniterm on /dev/ttyACM0 115200,8,N,1 —

— Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H —

␛[1F␛[0J␛[?25h␛[0;39;49mBench Clock Reset Complete

I also used active USB power hub, but this not change the behavior…

Kind regards,

2

this should be from bootloader, I keep seeing it whenever reset.

Unfortunately, Sparkfun never opensourced the bootloader, neither provide a download for recovery if someone like me overrides the bootloader accidentally.

A little disappointment. I am regetting I bought this board, bad support. If buget is not tight, go for Hifive1 rev B, great documentation and SDK support.