RE: data transfer using timer

Hung Bui — Wed, 23 Dec 2015 12:07:31 GMT

Hi Bernerd,

I don't see any problem with your approach.

What you can do is either maintain your own buffer to collect data from uart (like what we have with data_array) then wait either when it reach 300 bytes or when the timer timeout to send the data (calling ble_nus_string_send). You would need to truncate the long data into 20 bytes trunks and send them separately.

The other option, and maybe better one is to configure the size of the uart characteristic to be 300 so that you don't have to handle the truncating on application but let the stack does it for you.