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fix(ppp): Fix PPP not working after reboot if no RST #10264

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Merged
merged 1 commit into from
Aug 30, 2024
Merged

fix(ppp): Fix PPP not working after reboot if no RST #10264

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11 changes: 10 additions & 1 deletion libraries/PPP/src/PPP.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -324,8 +324,17 @@ bool PPPClass::begin(ppp_modem_model_t model, uint8_t uart_num, int baud_rate) {
} else {
// try to communicate with the modem
if (esp_modem_sync(_dce) != ESP_OK) {
log_v("Modem does not respond to AT, maybe in DATA mode? ...exiting network mode");
log_v("Modem does not respond to AT! Switching to COMMAND mode.");
esp_modem_set_mode(_dce, ESP_MODEM_MODE_COMMAND);
if (esp_modem_sync(_dce) != ESP_OK) {
log_v("Modem does not respond to AT! Switching to CMUX mode.");
if (esp_modem_set_mode(_dce, ESP_MODEM_MODE_CMUX) != ESP_OK) {
log_v("Modem failed to switch to CMUX mode!");
} else {
log_v("Switching back to COMMAND mode");
esp_modem_set_mode(_dce, ESP_MODEM_MODE_COMMAND);
}
}
if (esp_modem_sync(_dce) != ESP_OK) {
log_e("Modem failed to respond to AT!");
goto err;
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