1 // Copyright (C) 2009 Ubixum, Inc.
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, see <http://www.gnu.org/licenses/>.
17 * defines functions to print to a serial console with SIO0
24 * This function inits sio0 to use T2CON (timer 2)
25 * See TRM 14.3.4.1 (Table 14-16)
26 * Certain baud rates have too high an error rate to work. All baud rates are .16%
31 * \li 38400 -2.34% -2.34%
34 * Possible Baud rates:
43 * Any of these rates should work except 57600 at 12mhz. -2.34% is pushing
44 * most hardware specs for working. All rates at 48mhz work at .16%
47 void sio0_init( WORD baud_rate ) __critical ; // baud_rate max should be 57600 since int=2 bytes
50 putchar('\\n') or putchar('\\r') both transmit \\r\\n
51 Just use one or the other. (This makes terminal echo easy)