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| 771 | - | 1 | /**************************************************************************** |
| 902 | - | 2 | * Copyright (C) 2009-2011 by Claas Anders "CaScAdE" Rathje * |
| 771 | - | 3 | * admiralcascade@gmail.com * |
| 4 | * Project-URL: http://www.mylifesucks.de/oss/c-strom/ * |
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| 5 | * * |
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| 6 | * This program is free software; you can redistribute it and/or modify * |
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| 7 | * it under the terms of the GNU General Public License as published by * |
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| 8 | * the Free Software Foundation; either version 2 of the License. * |
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| 9 | * * |
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| 10 | * This program is distributed in the hope that it will be useful, * |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 13 | * GNU General Public License for more details. * |
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| 14 | * * |
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| 15 | * You should have received a copy of the GNU General Public License * |
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| 16 | * along with this program; if not, write to the * |
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| 17 | * Free Software Foundation, Inc., * |
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| 18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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| 19 | ****************************************************************************/ |
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| 20 | |||
| 21 | Console listens at 8n1 19200... Commands are explained there... |
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| 22 | |||
| 23 | |||
| 24 | ############################################################################# |
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| 25 | i2c/twi Sample snipplet |
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| 26 | // i2c master libary by Peter Fleury used in this example |
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| 27 | // http://homepage.hispeed.ch/peterfleury/avr-software.html#libs |
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| 28 | |||
| 29 | #define CSTROM_I2C 0x20 |
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| 30 | |||
| 31 | i2c_init(); |
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| 32 | sei(); |
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| 33 | |||
| 34 | union SPI_buffer_t SPI_buffer; |
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| 35 | // @see http://svn.mikrokopter.de/mikrowebsvn/filedetails.php?repname=Projects&path=%2FC-OSD%2Ftrunk%2Fspi.h |
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| 36 | |||
| 37 | if(!(i2c_start(CSTROM_I2C+I2C_WRITE))) { // check for slave ready |
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| 38 | i2c_write(0x00); // start with buffer address 0 |
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| 39 | i2c_rep_start(CSTROM_I2C+I2C_READ); // start reading |
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| 40 | for (uint8_t i = 0; i < 9; i++) { // loop through first 9 positions |
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| 41 | SPI_buffer.buffer.c[i] = i2c_readAck(); |
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| 42 | } |
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| 43 | SPI_buffer.buffer.c[9] = i2c_readNak(); // last position does not take ACK |
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| 44 | i2c_stop(); |
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| 45 | } |
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| 46 | uart_puts(itoa(SPI_buffer.data.volt, s, 10)); |
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| 47 | uart_puts_pgm(PSTR("V\r\n")); |
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| 48 | ############################################################################# |