ssp0.h

00001 /****************************************************************************
00002  *    Copyright 2010 Andy Kirkham, Stellar Technologies Ltd
00003  *    
00004  *    This file is part of the Satellite Observers Workbench (SOWB).
00005  *
00006  *    SOWB is free software: you can redistribute it and/or modify
00007  *    it under the terms of the GNU General Public License as published by
00008  *    the Free Software Foundation, either version 3 of the License, or
00009  *    (at your option) any later version.
00010  *
00011  *    SOWB is distributed in the hope that it will be useful,
00012  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *    GNU General Public License for more details.
00015  *
00016  *    You should have received a copy of the GNU General Public License
00017  *    along with SOWB.  If not, see <http://www.gnu.org/licenses/>.
00018  *
00019  *    $Id: main.cpp 5 2010-07-12 20:51:11Z ajk $
00020  *    
00021  ***************************************************************************/
00022 
00023 #ifndef SSP0_H
00024 #define SSP0_H
00025 
00026 #define FLASH_SSP_INIT_CPSR 2
00027 #define _25AA02E48_SSP_INIT_CPSR 0x64
00028 
00029 
00030 #define SSP0_TX_FIFO_SPACE_AVAILABLE  \
00031     LPC_SSP0->SR & (1UL << 1)
00032 
00033 #define SSP0_TX_FIFO_NOT_EMPTY \
00034     (!(SSP0_TX_FIFO_SPACE_AVAILABLE))
00035 
00036 #define SSP0_IS_BUSY \
00037     LPC_SSP0->SR & (1UL << 4)
00038 
00039 #define SSP0_FLUSH_RX_FIFO  \
00040     while(LPC_SSP0->SR & (1UL << 2)) { \
00041         unsigned int dev_null = LPC_SSP0->DR; \
00042     }
00043 
00044 #define SSP0_WRITE_BYTE(byte)         \
00045     while(!SSP0_TX_FIFO_SPACE_AVAILABLE);  \
00046     LPC_SSP0->DR=(uint32_t)(byte&0xFF)
00047     
00048 
00049 void SSP0_init(void);
00050 bool SSP0_request(void);
00051 void SSP0_release(void);
00052 
00053 #endif