I think that you need to tell us exactly which module of which you speak. A link to a data sheet or where you got it would help.
I don't think that you answered the question about how much data (in bytes) and how fast (bytes per second) the data have to be transmitted.
If you post the code that you tried, maybe someone can help you to get it to work better. Read the forum guidelines to see how to properly post code and some hints on how to get the most from this forum.
Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in code tags.