usHow to receivee com interface?

Everyone,
I use openAt programing Q2687 moudle, I need to receive HEX data through the COM1 interface , In openAT need through FCM data stream to receive data, but I find that FCM data stream only received U8 data type (ascii coding), can not receive binary data.Who can help me? Thanks.
zhaoxia

duplicate: https://forum.sierrawireless.com/t/how-receive-hex-data-by-fcm/8247/1