Recording Neurosky Real Time without any second variable

I have an task to record eeg using a Neurosky Mindwave Mobile 2 as a real time in matlab. I found a code to read a raw data and attention in pantechsolution, but it only can recorded for a few second and I can't stop it in the middle of record. How I can record the raw data or attention in unlimited time, and I can stop it whenever I want. Thank you, sorry for my bad english