dmactrl.c

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00001 /***************************************************************************/
00019 #include "em_device.h"
00020 #include "dmactrl.h"
00021 
00022 #if ( ( DMA_CHAN_COUNT > 4 ) && ( DMA_CHAN_COUNT <= 8 ) )
00023 #define DMACTRL_CH_CNT      8
00024 #define DMACTRL_ALIGNMENT   256
00025 
00026 #elif ( ( DMA_CHAN_COUNT > 8 ) && ( DMA_CHAN_COUNT <= 16 ) )
00027 #define DMACTRL_CH_CNT      16
00028 #define DMACTRL_ALIGNMENT   512
00029 
00030 #else
00031 #error "Unsupported DMA channel count (dmactrl.c)."
00032 #endif
00033 
00034 
00036 #if defined (__ICCARM__)
00037 #pragma data_alignment=DMACTRL_ALIGNMENT
00038 DMA_DESCRIPTOR_TypeDef dmaControlBlock[DMACTRL_CH_CNT * 2];
00039 
00040 #elif defined (__CC_ARM)
00041 DMA_DESCRIPTOR_TypeDef dmaControlBlock[DMACTRL_CH_CNT * 2] __attribute__ ((aligned(DMACTRL_ALIGNMENT)));
00042 
00043 #elif defined (__GNUC__)
00044 DMA_DESCRIPTOR_TypeDef dmaControlBlock[DMACTRL_CH_CNT * 2] __attribute__ ((aligned(DMACTRL_ALIGNMENT)));
00045 
00046 #else
00047 #error Undefined toolkit, need to define alignment
00048 #endif