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g4klx / MMDVM

The firmware for the MMDVM (Multi-Mode Digital Voice Modem)
GNU General Public License v2.0
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How to enable debug message? #135

Closed jcyfkimi closed 6 years ago

jcyfkimi commented 6 years ago

I build the code for STM32F411RE-NUCLEO board with below configurations in config.h

define EXTERNAL_OSC 12288000 //I'm using FOX924B-12.288 as tcxo

define ARDUINO_MODE_PINS

define STM32F4_NUCLEO_MORPHO_HEADER

define SEND_RSSI_DATA

Unfortunately it's not working as expected after I upload the hex file to the board, the live led not blinking and the MMDVMHost application can't connect to the board, so I want to check if there's any to enable some debug messages printed on serial port? I tried to open the serial port but nothing shows.

juribeparada commented 6 years ago

Your settings are correct, but STM32F411 is not supported by the current MMDVM firmware. The only STM32 parts supported are: STM32F407, STM32F446, STM32F722 and STM32F767.

jcyfkimi commented 6 years ago

That's interesting, I mean both F411 and F446 are included in F4 families, so what's the limitation of 411 board? The only reason I can imaging is that there's some key features that MMDVM firmware used but the 411 chip don't have, what are they?

juribeparada commented 6 years ago

The F411 doesn't have DAC, an important component for MMDVM.

jcyfkimi commented 6 years ago

Noticed and thanks for you information.