How can I build an SPI master-side program on a non-esp32 MCU to achieve communication with an esp32 slave-side? (IDFGH-16864)

[sumer274]

Is your feature request related to a problem?

I want to use a non-esp32 MCU as an SPI host to communicate with SPI AT. But I don't know how to build an SPI host program, as the communication protocol with SPI AT seems to rely on the esp's underlying SPI driver program, and I don't know how to implement it on other MCUs.

Describe the solution you'd like.

No response

Describe alternatives you've considered.

No response

Additional context.

No response

[ginkgm]

Hi @sumer274 ,

This sounds like an AT question rather than a question to ESP-IDF. But I have some suggestion for this kind of question:

You can go to the User Guide of ESP-AT: https://docs.espressif.com/projects/esp-at/ . On the page there is a bot:

I think it can answer a lot of question.

[sumer274]

Hi @sumer274 ,  你好

This sounds like an AT question rather than a question to ESP-IDF. But I have some suggestion for this kind of question:这听起来更像是反坦克问题，而不是问 ESP-IDF。但我对这类问题有一些建议：

You can go to the User Guide of ESP-AT: https://docs.espressif.com/projects/esp-at/ . On the page there is a bot:你可以访问 ESP-AT 的用户指南：https://docs.espressif.com/projects/esp-at/ 。页面上有一个机器人：

I think it can answer a lot of question.我觉得这能解答很多问题。

Thanks for the reply, I have asked the same question ESP_AT, but no one seems to have replied; Because I think my main problem is that the esp spi communication depends on the ESP_IDF spi driver, and how do I port the spi host-side program on a non-esp MCU, so I'm trying to ask the question here. I have consulted the documentation on the relevant AT, but I can't solve my problem, the routine provided in the documentation is based on esp32 as the host to communicate with the esp-at slave (in the esp32_c_series), which did not solve my doubts.