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1. Recently, I want to use Edison (mini breakout) to read serial data from STM32 (3V3 ttl level), can I directly connect the TX and RX from STM32 to my Edison?
2. Furthermore, I have tried to directy connect the STM32 to Edison for Arduino expansion, but i cannot received any data. I think the parameter was correct, Band rate was 115200. Here is my connection:
STM32 RX<--------->TX Edison for Arduino
TX<---------->RX
3. So I guess maybe that's related to TTL level.
Pls help,
Many thanks.
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The Edison module operates at 1.8V. You need a level translator, probably, a bidirectional one.
You probably have to initialize GPIOs on the Arduino module. They have different modes. Check the Arduino for Edison documentation about pinmuxing.
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Hi Lane,
Here's the documentation with all these specifications. This is the http://download.intel.com/support/edison/sb/edisonmodule_hg_331189004.pdf Edison Module Hardware Guide, with all the information about its operation, and this is the http://download.intel.com/support/edison/sb/edisonarduino_hg_331191007.pdf Edison Arduino Board Hardware Guide where you can check instructions on how to initialize the GPIO as Vincenze mentioned.
Regards,
Pablo
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Hi, Pablo,
Thanks for your reminding. I will check the guide again carefully. And will give a feedback soon.
Thanks,
Lane
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Hi, Pablo,
I followed this thread , And It works now.
thanks,
Lane

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