I use a modified version of the PPPoS example and trying to send commands with a baud rate higher then 230400 but when doing so, I don't get any activity on the port. 115200 and 230400 works.
I use gpio26 for RX and gpio25 as TX.

ESP-IDF v4.3-beta3-195-g6be10fab0

Hi,
I think I am experience a similar problem. I am not able to unhold a gpio in a ULP program (running after some time in deep sleep) after setting it to hold in the main program before going to deep sleep.
Did you find a solution to this problem?

problem solved!
You have to use PAP with empty username and password

Hi, I have two generation of products using different ESP chips but with the same application. First generation is using the ESP-WROOM-32 chip and the second generation is using the ESP32-WROVER-B. The second generation product make use of the included PSRAM. To the problem: When activating PSRAM yo...

I experience a problem connecting PPPoS to UBlox SARA-R5. Tested using ESP-IDF 4.0 and 4.2. It seems to be a problem with the LCP handshake. This is the log output directly after receiving 'CONNECT' from module when using ESP-IDF 4.2: ppp_connect[1]: holdoff=0 ppp phase changed[1]: phase=3 pppos_con...

This is now resolved using esp-idf 4.2. Not sure if it still not work in 4.1.

Even though I get the event 'IP_EVENT_PPP_GOT_IP', the local IP address never gets set. So when calling socket connect I get back the error 'Socket unable to connect: errno 118' The error comes from the line with bold text (the code is devided at this line) in the file 'esp-idf\components\lwip\lwip\...

HI, I'm using esp-idf 4.1 with custom hardware with a Ublox Sara-R4 modem. Previously I was using esp-idf 3.3 and that is working. My problem is that I can not communicate using standard sockets functions. All the PPPOS stages are ok. Im getting the IP address from the modem. It seams that the socke...

Hi,

Did you find any solution to this?

I am struggling with setting gpio14 in wake-up stub.

brp80000 wrote: ↑

Thu Feb 21, 2019 5:26 pm

My experience is it only works when power on (Power on reset) or hard reset via reset pin

OK!
I have tried using gpio4 with wake up enabled as well. In deep sleep if I push the button and hold it, it executes the factory reset.
My hope was that it also require that I toggle the enable pin.