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esp_modem: Expand PPPoS example with USB DTE

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Tomas Rezucha
2022-09-23 13:14:06 +02:00
parent bf84ae940a
commit 53b59332dc
4 changed files with 105 additions and 16 deletions
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components/esp_modem/examples/pppos_client/README.md
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@ -9,6 +9,18 @@ This example shows how to act as a MQTT client after the PPPoS channel created b
See the README.md file in the upper level `pppos` directory for more information about the PPPoS examples.
### USB DTE support
For USB enabled targets (ESP32-S2 and ESP32-S3), it is possible to connect to the modem device via USB.
1. In menuconfig, navigate to `Example Configuration->Type of serial connection to the modem` and choose `USB`.
2. Connect the modem USB signals to pin 19 (DATA-) and 20 (DATA+) on your ESP chip.
USB example uses Quactel BG96 modem device. BG96 needs a positive pulse on its PWK pin to boot-up.
This example supports USB modem hot-plugging and reconnection.
### Supported IDF versions
This example is only supported from `v4.1`, as this is the default dependency of `esp-modem` component.
This example is only supported from `v4.1`, as this is the default dependency of `esp-modem` component.
USB example is supported from `v4.4`.