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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 Alen1214


What error are you experiencing when running the code on the HPS?

Can you please share the run logs for the code in the HPS.


Could you share a screenshot of your Address Map in Qsys?

I think it could be related to the address value that you set for the uart.

Could you print out what is the exact value of h2p_lw_uart_addr?


Regards

Jingyang, Teh


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

Thank a lot Jingyang, Teh.

when running the core on the HPS, I has no error and in terminal has a long string "hello hello ...." but ESP8266 is not getting any character.

Then I share with you some screenshot of your Address Map in QsysAddress map in Qsys (1)Address map in Qsys (2)Address map in Qsys (3)

I will print out the exact address value of h2p_lw_uart_addr as soon as I can. And I hope you check for me with some information I provided.

I thank you very much for your help and I hope you have amazing date!!!

Regards,

Alen1214