Adi_Dma_En; Adi_Dma_Wdsize; Adi_Dma_Wnr; Dma Commands - Analog Devices VisualDSP++ 5.0 Service Manual

Public Data Structures, Enumerations, and Macros

ADI_DMA_EN

ADI_DMA_DISABLE
ADI_DMA_ENABLE

ADI_DMA_WDSIZE

ADI_DMA_8BIT
ADI_DMA_16BIT
ADI_DMA_32BIT

ADI_DMA_WNR

ADI_DMA_READ
ADI_DMA_WRITE

DMA Commands

DMA channels and memory streams can be controlled via calls to the
adi_dma_Command()
Table 6-3 describes the commands and values that can be issued via this
function.
Table 6-3. DMA Commands
Command ID
ADI_DMA_CMD_TABLE
ADI_DMA_CMD_PAIR
ADI_DMA_CMD_END
6-62
Disables DMA transfer on the channel.
Enables DMA transfer on the channel.
8-bit words
16-bit words
32-bit words
Transfer from memory to peripheral
Transfer from peripheral to memory
function.
Value
ADI_DMA_CMD_VALUE_PAIR *
ADI_DMA_CMD_VALUE_PAIR *
NULL
VisualDSP++ 5.0 Device Drivers and System
Services Manual for Blackfin Processors
Description
Pointer to a table of
commands
Pointer to a single
command pair
Signifies end of table.