Subversion Repositories Projects

Rev

Rev 507 | Rev 761 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
471 cascade 1
/****************************************************************************
728 cascade 2
 *   Copyright (C) 2009-2010 by Claas Anders "CaScAdE" Rathje               *
471 cascade 3
 *   admiralcascade@gmail.com                                               *
4
 *   Project-URL: http://www.mylifesucks.de/oss/c-osd/                      *
5
 *                                                                          *
6
 *   This program is free software; you can redistribute it and/or modify   *
7
 *   it under the terms of the GNU General Public License as published by   *
8
 *   the Free Software Foundation; either version 2 of the License.         *
9
 *                                                                          *
10
 *   This program is distributed in the hope that it will be useful,        *
11
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
12
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
13
 *   GNU General Public License for more details.                           *
14
 *                                                                          *
15
 *   You should have received a copy of the GNU General Public License      *
16
 *   along with this program; if not, write to the                          *
17
 *   Free Software Foundation, Inc.,                                        *
18
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.              *
19
 ****************************************************************************/
20
 
507 cascade 21
/*
22
 * structs 'n union for easy SPI transfer
23
 */
24
typedef struct {
25
        int16_t ampere;
26
        int32_t mah;
27
        int16_t volt;
28
} __attribute__((packed)) SPI_strom_data_t;
29
 
30
typedef struct {
31
        uint8_t c[10];
32
        uint8_t chk;
33
} __attribute__((packed)) SPI_char_buffer_t;
34
 
35
union SPI_buffer_t {
36
  SPI_strom_data_t data;
37
  SPI_char_buffer_t buffer;
38
};
39
 
40
volatile union SPI_buffer_t SPI_buffer;
41
 
471 cascade 42
/**
43
 * SPI interrupt handler
44
 */
45
ISR(SPI_STC_vect);
46
 
47
/**
48
 * init the SPI as master
49
 */
50
void SpiMasterInit(void);
51
 
52
/**
53
 * check if SPI transfer is still busy
54
 */
55
int TransferIsBusy(void);
56
 
57
/**
507 cascade 58
 * start a new transfer with length <len>
471 cascade 59
 */
507 cascade 60
void StartTransfer(uint16_t);
61
 
62
/**
63
 * send next command through spi
64
 */
65
void spi_send_next();