Double Buffer functions
Collaboration diagram for Double Buffer functions:
|
Functions | |
| IFX_INLINE boolean | IfxDma_getDoubleBufferRead (Ifx_DMA *dma, IfxDma_ChannelId channelId) |
| get information on buffer being read by software and clear the notification flag More... | |
| IFX_INLINE boolean | IfxDma_getDoubleBufferSelection (Ifx_DMA *dma, IfxDma_ChannelId channelId) |
| get Double buffer selection More... | |
| IFX_INLINE void | IfxDma_keepDoubleBufferActive (Ifx_DMA *dma, IfxDma_ChannelId channelId) |
| keeps the double buffer active More... | |
| IFX_INLINE void | IfxDma_switchDoubleBuffer (Ifx_DMA *dma, IfxDma_ChannelId channelId) |
| Double buffer switch application. More... | |
Detailed Description
Function Documentation
| IFX_INLINE boolean IfxDma_getDoubleBufferRead | ( | Ifx_DMA * | dma, |
| IfxDma_ChannelId | channelId | ||
| ) |
get information on buffer being read by software and clear the notification flag
- Parameters
-
dma pointer to DMA module channelId DMA channel number
- Returns
- TRUE if one of the buffers is being read by software FALSE if one of the buffers is already read by software
// Check the buffer being read (Double buffer operation mode)
while(!(IfxDma_getDoubleBufferRead(chn[0].dma, chn[0].channelId)));
| IFX_INLINE boolean IfxDma_getDoubleBufferSelection | ( | Ifx_DMA * | dma, |
| IfxDma_ChannelId | channelId | ||
| ) |
get Double buffer selection
- Parameters
-
dma pointer to DMA module channelId channelId DMA channel number
- Returns
- TRUE if buffer 1 is being filled FALSE if buffer 0 is being filled
boolean buffer_being_filled;
// Check the buffer being filled (Double buffer operation mode)
buffer_being_filled = IfxDma_getDoubleBufferSelection(chn[0].dma, chn[0].channelId));
| IFX_INLINE void IfxDma_keepDoubleBufferActive | ( | Ifx_DMA * | dma, |
| IfxDma_ChannelId | channelId | ||
| ) |
keeps the double buffer active
- Parameters
-
dma pointer to DMA module channelId DMA channel number
- Returns
- None
IfxDma_keepDoubleBufferActive(chn[0].dma, chn[0].channelId);
| IFX_INLINE void IfxDma_switchDoubleBuffer | ( | Ifx_DMA * | dma, |
| IfxDma_ChannelId | channelId | ||
| ) |
Double buffer switch application.
- Parameters
-
dma pointer to DMA module channelId DMA channel number
- Returns
- None
// Apply software buffer switch
IfxDma_switchDoubleBuffer(chn[0].dma, chn[0].channelId);
