Hi, I managed to let my ST Nucleo with mbed OS connect to Internet using an Adafruit Fona (a serial 2G modem). I used the PPP layer included in the sal-stack-lwip module, using this library as reference: https://github.com/mbedmicro/mbed/tree/master/libraries/net/cellular/CellularModem It works goo…

Scheduling a periodic receive task should work just fine since mbed OS sockets are non-blocking. Could you use the interrupt to schedule a processing task instead of scheduling it periodically? You can bind the buffer to the task packet input function. For example: Serial s; void pppPacketAdder(B…

Thank you for your reply Brendan. Indeed, your solution is smarter. I’ll try this way and I’ll see if all works well. Thank you again Carmelo

Hi oxtek, here you can find the the code I’m using to drive my Adafruit Fona serial modem on mbed OS: GitHub - carmelomigliore/sal-iface-serialmodem I had to slightly modify the sal-stack-lwip module (on which the PPP serial layer depends) to let it work on my st nucleo board. So depending on your …

in mbed classic I can use the follow to receive uart , in mbedos what should I do. thanks!!! Serial s(xx,xx); void callback(){ char tmp = s.getc(); } void main() { s.attach(&callback); while(true); }

@zm1011 The attach and getc member functions should work the same way. I would suggest using burst reads if possible: /** Begin asynchronous reading using 8bit buffer. The completition invokes registred RX event callback. * * @param buffer The buffer where received data will be store…

[image] cmigliore: interrupt how using an intterrupt to save serial data in mbedos , can you give me some hint? thanks a lot!!!

after removed the code{ while(true); } ,when I send char to serial it can’t operate correct(in callbackFun() I add led state change). I need to continue to receive the message, and the message length is not necessarily. can you give me any suggestion? thank you !!!

Can you post more of your code? It’s important that you use app_start, rather than main.

In st-nucleo-f401re-gcc 0.2.4 board when receive uart message the code get frozen, but in frdm-k64f-gcc 2.0.0 the code can run correct. if i want make st-nucleo-f401re-gcc can also run with no error ,which file should modify? thank you!!! #include "mbed-drivers/mbed.h" #include "minar/minar.h" #i…

PPP over serial and mbed OS Sockets (cellular modem)

Mbed OS

oxtek (oxtek AnundA) February 15, 2016, 4:14pm 4

Hi I would like to using PPP over serial. Can you give some example code that how we do it?
I have post in GSM/GPRS module and PPP protocol | Mbed since 2011 but no any answer for solution. Pls shade some light for us.

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PPP over serial and mbed OS Sockets (cellular modem)

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