AnHardt 4b44a23a36 Add TX-buffer for MarlinSerial ... Similar to the current Arduino HardwareSerial but with max. 256 byte buffer-size. Deactivated by default. The boards with AT90USB processor (USBCON) already use a TX-buffer.		2016-07-08 17:25:21 +02:00
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Round2	Add TX-buffer for MarlinSerial	2016-07-08 17:25:21 +02:00