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PSoC 6 Peripheral Driver Library
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PSoC 6 Peripheral Driver Library
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DMAC descriptor structure type.
It is a user-declared structure allocated in RAM. The DMAC HW requires a pointer to this structure to work with it.
For advanced users: the descriptor can be allocated even in flash, however the user have to predefine all the structure items with constants manually, because the descriptor "Set" API functions (including Cy_DMAC_Descriptor_Init()) don't work with read-only descriptors.
Data Fields | |
| uint32_t | ctl |
| 0x00000000 Descriptor control | |
| uint32_t | src |
| 0x00000004 Descriptor source | |
| uint32_t | dst |
| 0x00000008 Descriptor destination | |
| uint32_t | xSize |
| 0x0000000C Descriptor X loop size | |
| uint32_t | xIncr |
| 0x00000010 Descriptor X loop increment | |
| uint32_t | ySize |
| 0x00000014 Descriptor Y loop size | |
| uint32_t | yIncr |
| 0x00000010 Descriptor Y loop increment | |
| uint32_t | nextPtr |
| 0x00000014 Descriptor next pointer | |