Solved. Weird enough, I tried and it was the reason. The two functions are missing from esp_modem_c_api.cpp I created them extern "C" esp_err_t esp_modem_resume_data_mode(esp_modem_dce_t *dce_wrap) { if (dce_wrap == nullptr || dce_wrap->dce == nullptr) { return ESP_ERR_INVALID_ARG; } return command_...

This is CMakelists.txt for my modem component. Everything has been working for months, until I used the two functions I mentioned.

idf_component_register(SRCS "modem.c" INCLUDE_DIRS "include" REQUIRES "driver" "esp_event" "esp_netif" "esp_modem")

Thank you for your answer.

Hello all. I am using the esp_modem component in my project, and I am having problems when using the esp_modem_set_command_mode() and esp_modem_resume_data_mode() functions. I have seen that they are C functions derived from their C++ counterparts set_command_mode() and resume_data_mode(). I do not ...

Hello. I am back with this problem. My client redesigned the hardware and changed the modem module, so I have been out of this project for a while. But I am now back at it and the problem persists. If I initialize the modem using this function modem_t *modem_Init(int tx_pin, int rx_pin, int rts_pin,...

Any news about this problem?

As far as I know, attachInterrupt is a function used in the Arduino IDE (and PlatformIO) to attach a pseudo interrupt routine to an external (GPIO triggered) interrupt. It is not a generic function and not one supported by the Espressif IDE.

Hello. I have reduced the code to an absolute minimum. It is the pppos_client code but GPIO configuration and modem activation (via GPIO pin) is placed in functions in a component; modem management is placed in another component. Main app just calls the functions as required, then waits on the event...

Hello, and thank you for your reply. The code is basically the same as the pppos_client example from the esp_modem component. I am continuing working around the problem and I am more puzzled each time. As the mentioned example works with BLE enabled in menuconfig, I have tried the following: my app ...

Hello. I have been working for several weeks in a project accessing MQTT servers using the pppos interface provided by the esp-modem component. Everything was working perfect, until I enabled BLE in menuconfig. From that moment, and with exactly the same code that worked perfectly, the system began ...