What is Buffered vs Synchronous Transfer Mode

[bernd.dk (Bernd)]

Gcode Controller - Transfer Mode

“Buffered” means that we send data whenever there is room for it in the receive buffer of the controller, regardless of whether the controller has sent back ‘ok’ responses or not. “Synchronous” means that we send a single line of GCode and wait for the ‘ok’ for it before sending the next one. All controllers will push code into a block queue for motion planning, so there is an internal buffer that holds some number of moves in advance of what’s actually being executed. The serial receive buff…