kopia lustrzana https://github.com/espressif/esp-idf
Examples/PPPoS: Add mandatory delay after +++ command
Switching back from data (PPP) mode to command mode must be done is the following sequence: * No characters entered for T1 time (1 second) * "+++" characters entered with no characters in between (1 second) * No characters entered for T1 timer (1 second) (per specification of SIM800 SIM800_Series_AT_Command_Manual_V1.09.pdf) Related https://github.com/espressif/esp-idf/issues/7608pull/8044/head^2
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f129871b72
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@ -307,6 +307,7 @@ static esp_err_t sim800_set_working_mode(modem_dce_t *dce, modem_mode_t mode)
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DCE_CHECK(dce->state == MODEM_STATE_SUCCESS, "sync failed", err);
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} else {
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DCE_CHECK(dce->state == MODEM_STATE_SUCCESS, "enter command mode failed", err);
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vTaskDelay(pdMS_TO_TICKS(1000)); // spec: 1s delay after `+++` command
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}
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ESP_LOGD(DCE_TAG, "enter command mode ok");
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dce->mode = MODEM_COMMAND_MODE;
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