Flow control...

Flow control…

… seems to be something I need to put in place next in Blunt 2. Just for fun, I wanted to test the raw transfer speed over Bluetooth, and was spending quite a lot of time trying to figure out why I get corrupted data after a certain time. Turns out that the receive buffers on the PICO card are too small, and with all the logging, Blunt 2 is reading too slowly from the card, resulting in an overflow. The good thing is that with timers being now much easier to implement in Blunt 2, adding flow control should be not too hard. Ideally, this would be credit based Bluetooth 1.1 flow control, but it looks like that the Mac OS X stack only does the serial port emulation of the 1.0B version, which is a little less elegant.