Hi,
The product is fine,I have been using the SIM900D without any problems in many
different countries as well. It may run for a days without dropping the
connection. Obviously you have a hardware issue as your not supplying enough
voltage or power supply voltage drops when the gsm signal is
Hi,
Try and enable the DEBUG on LWIP tcp etc. to see whats going on. Its probably a
driver problem. Dont expect the examples on the web to work for your setup,
most of then dont work properly. I have a port for FreeRTOS that I can send
you. You are probably be better with FreeRTOS.
Regards,
Hello,
I have system with an ethernet and a GSM modem on. The application involves
uploading remotely through the PPP connection and ethernet usually to access
the web application. I have a problem when running the two interfaces together.
Separately they run ok. Initialy I bring up the