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fix(esp-modem): Improve PPP exit sequence

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* Implement retry mechanism if escape PPP mode failed
* Stop networking and checking for NO-CARRIER manually on PPP exit

Closes https://github.com/espressif/esp-protocols/issues/47
This commit is contained in:
David Cermak
2022-06-05 15:43:56 +02:00
parent ebf122bd36
commit 1e0aefd72a
2 changed files with 47 additions and 19 deletions
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13
components/esp_modem/include/cxx_include/esp_modem_dce_module.hpp
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@ -79,8 +79,17 @@ public:
}
return true;
} else if (mode == modem_mode::COMMAND_MODE) {
Task::Delay(1000); // Mandatory 1s pause
return set_command_mode() == command_result::OK;
Task::Delay(1000); // Mandatory 1s pause before
int retry = 0;
while (retry++ < 3) {
if (set_command_mode() == command_result::OK)
return true;
Task::Delay(1000); // Mandatory 1s pause after escape
if (sync() == command_result::OK)
return true;
Task::Delay(1000); // Mandatory 1s pause before escape
}
return false;
} else if (mode == modem_mode::CMUX_MODE) {
return set_cmux() == command_result::OK;
}