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bouffalolab / bouffalo_sdk

BouffaloSDK is the IOT and MCU software development kit provided by the Bouffalo Lab Team, supports all the series of Bouffalo chips. Also it is the combination of bl_mcu_sdk and bl_iot_sdk
Apache License 2.0
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BL616 helloworld no console #161

Closed berkutta closed 1 year ago

berkutta commented 1 year ago

I'm trying to get the helloworld example running on an Ai-M62-12F-Kit. I can build and flash it, but I don't get any console output via picocom.

Building and flashing:

make CHIP=bl616 BOARD=bl616dk
make CHIP=bl616 BOARD=bl616dk flash COMX=/dev/ttyUSB0

No output even after pressing RESET multiple times:

sudo picocom -b 2000000 /dev/ttyUSB0
picocom v3.1

port is        : /dev/ttyUSB0
flowcontrol    : none
baudrate is    : 2000000
parity is      : none
databits are   : 8
stopbits are   : 1
escape is      : C-a
local echo is  : no
noinit is      : no
noreset is     : no
hangup is      : no
nolock is      : no
send_cmd is    : sz -vv
receive_cmd is : rz -vv -E
imap is        : 
omap is        : 
emap is        : crcrlf,delbs,
logfile is     : none
initstring     : none
exit_after is  : not set
exit is        : no

Type [C-a] [C-h] to see available commands
Terminal ready

Terminating...
Skipping tty reset...
Thanks for using picocom

Compiler version:

riscv64-unknown-elf-gcc --version 
riscv64-unknown-elf-gcc (Xuantie-900 elf newlib gcc Toolchain V2.6.1 B-20220906) 10.2.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
gamelaster commented 1 year ago

Since you can flash program with same UART, pins should be correct. Did you tried another baudrates, like 115200?

berkutta commented 1 year ago

I have tried 9600, 115200 and 2000000. I think 2000000 should be correct https://github.com/bouffalolab/bouffalo_sdk/blob/master/bsp/board/bl616dk/board.c#L196

berkutta commented 1 year ago

Ok, it works with an external USB-UART converter connected to the Pins TX and RX on the Pinheader with Baudrate 2000000.

This means no SDK issue, but issue on the AiThinker board..