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17 lines
977 B
Markdown
17 lines
977 B
Markdown
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# Espressif Serial Slave Link (ESSL) component
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This component used to reside in [esp-idf](https://github.com/espressif/esp-idf) project as its component.
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It's used on the HOST, to communicate with ESP chips as SLAVE via SDIO/SPI slave HD mode.
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The port layer (`essl_sdio.c/essl_spi.c`) are currently only written to run on ESP chips in master mode, but you may also modify them to work on more platforms.
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See more documentation: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/protocols/esp_serial_slave_link.html
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But it's going to be an idf-extra-component, and should be pulled-in by an idf_component.yml (See `examples/peripherals/sdio/host/main/idf_component.yml`).
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This folder is here for two purposes:
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1. Fix a version for tests, to make them stable and not affected by external factors such as network, changes in idf-extra-components, etc.
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2. Build Programming Guide from ESP-IDF before ESSL actually have a place to put the documents.
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