samples: net: cellular_modem: No PPP packets received when using esp32 async uart #72484
Labels
bug
The issue is a bug, or the PR is fixing a bug
platform: ESP32
Espressif ESP32
priority: low
Low impact/importance bug
Describe the bug
I managed to get the cellular_modem sample to work on my Walter board (ESP32-S3 + Sequans GM02SP modem) using UART_INTERRUPT_DRIVEN. However when using UART_ASYNC_API, all AT chat commands work, but no PPP frames can be received.
Requires #72453, or else the sample fails earlier.
To Reproduce
cellular_modem sample with:
devicetree (changes in comparison to the esp32s3-devkitc dts):
pinctrl:
defconfig:
proj.conf:
Expected behavior
PPP packets getting received, same as when using UART_INTERRUPT_DRIVEN.
Logs and console output
Functional UART_INTERRUPT_DRIVEN log:
UART_ASYNC_API log:
Environment:
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