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Alen1214's avatar
Alen1214
Icon for New Contributor rankNew Contributor
3 years ago
Solved

De10 standard connects to esp8266 via uart communication by IP uart (rs-232 serial port)

Hi, I need to communicate between de10 and esp8266 to send data to the cloud, but first I need to connect these 2 kits base on project GHRD. I see they can connect with each other by IP uart rs232 an...
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  • tehjingy_Altera's avatar
    tehjingy_Altera
    3 years ago

    Hi Allen


    Do you have a scope available to measure the signals coming out from the pins?

    Do you have the specification for the USB transceiver that you are using? What operating signal logic it is able to capture?

    The signals coming out from the GPIO are 3.3Vs.


    Regards

    Jingyang, Teh


tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi Alen


That is weird that the baudrate are different from set.

How much difference was it?

How did you correct the difference?


Regards

JIngyang, Teh


  • Alen1214's avatar
    Alen1214
    Icon for New Contributor rankNew Contributor
    3 years ago

    Hi JingyangTeh,

    When I found the error, I felt strange.

    When I set baudrate = 9600, the real baudrate is 12500 (time per bit is 80us). And I used oscilloscope to measure and detect that.

    Regards,

    Alen (Phan Quang Kỳ)