/* test_twi_usi.c */ /* avr.twi - TWI AVR module. {{{ * * Copyright (C) 2010 Nicolas Schodet * * APBTeam: * Web: http://apbteam.org/ * Email: team AT apbteam DOT org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * }}} */ #include "common.h" #include "modules/twi/twi.h" #include "io.h" int main (int argc, char **argv) { /* Initialize TWI. */ twi_init (0x04); while (42) { /* Simulate interrupts. */ twi_update (); /* Check for data. */ uint8_t data[AC_TWI_SLAVE_RECV_BUFFER_SIZE]; uint8_t data_len; data_len = twi_slave_poll (data, AC_TWI_SLAVE_RECV_BUFFER_SIZE); if (data_len) { /* Echo them back.*/ twi_slave_update (data, data_len); } } }