| 0,0 → 1,65 |
|---|
| /**************************************************************************** |
| * Copyright (C) 2009-2010 by Claas Anders "CaScAdE" Rathje * |
| * admiralcascade@gmail.com * |
| * Project-URL: http://www.mylifesucks.de/oss/c-osd/ * |
| * * |
| * 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. * |
| * * |
| * 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. * |
| ****************************************************************************/ |
| |
| /* |
| * structs 'n union for easy SPI transfer |
| */ |
| typedef struct { |
| int16_t ampere; |
| int32_t mah; |
| int16_t volt; |
| } __attribute__((packed)) SPI_strom_data_t; |
| |
| typedef struct { |
| uint8_t c[10]; |
| uint8_t chk; |
| } __attribute__((packed)) SPI_char_buffer_t; |
| |
| union SPI_buffer_t { |
| SPI_strom_data_t data; |
| SPI_char_buffer_t buffer; |
| }; |
| |
| volatile union SPI_buffer_t SPI_buffer; |
| |
| /** |
| * SPI interrupt handler |
| */ |
| ISR(SPI_STC_vect); |
| |
| /** |
| * init the SPI as master |
| */ |
| void SpiMasterInit(void); |
| |
| /** |
| * check if SPI transfer is still busy |
| */ |
| int TransferIsBusy(void); |
| |
| /** |
| * start a new transfer with length <len> |
| */ |
| void StartTransfer(uint16_t); |
| |
| /** |
| * send next command through spi |
| */ |
| void spi_send_next(); |