topic How to use gprs modem for getting range in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/How-to-use-gprs-modem-for-getting-range/m-p/245085#M21167 <HTML><HEAD></HEAD><BODY><P>I have the POS terminal which uses i.mx 258 chipset with dual sim gprs modem integrated.</P><P>The gprs modem device is created as /dev/ttymxc0.</P><P>I am able to start the gprs modem and establish the data connection by providing correct settings in dialout script.</P><P>When I start the data&nbsp; connection using ttymxc0 device, I need to show the signal strength at the same time, </P><P>I tried getting the signal strength using AT+CSQ command but am not able to access the device as its used by pppd,</P><P> says: can't create '/var/lock/LCK..ttymxc0': File exists</P><P>Is there any way I can get the signal strength and data at the same time? can you please provide me some pointers for fixing this issue.</P><P></P><P><SPAN class="mce_paste_marker"></SPAN></P></BODY></HTML> Fri, 28 Jun 2013 12:19:42 GMT vaibhavingale 2013-06-28T12:19:42Z How to use gprs modem for getting range https://community.nxp.com/t5/i-MX-Processors/How-to-use-gprs-modem-for-getting-range/m-p/245085#M21167 <HTML><HEAD></HEAD><BODY><P>I have the POS terminal which uses i.mx 258 chipset with dual sim gprs modem integrated.</P><P>The gprs modem device is created as /dev/ttymxc0.</P><P>I am able to start the gprs modem and establish the data connection by providing correct settings in dialout script.</P><P>When I start the data&nbsp; connection using ttymxc0 device, I need to show the signal strength at the same time, </P><P>I tried getting the signal strength using AT+CSQ command but am not able to access the device as its used by pppd,</P><P> says: can't create '/var/lock/LCK..ttymxc0': File exists</P><P>Is there any way I can get the signal strength and data at the same time? can you please provide me some pointers for fixing this issue.</P><P></P><P><SPAN class="mce_paste_marker"></SPAN></P></BODY></HTML> Fri, 28 Jun 2013 12:19:42 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-use-gprs-modem-for-getting-range/m-p/245085#M21167 vaibhavingale 2013-06-28T12:19:42Z