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Altera_Forum
Honored Contributor
Honored Contributorregarding data transfer between two custom components or peripherals
I created register as the custom component and instantiated it twice.In a sopc system,now i have 2 separate registers,nios-ii processor,on-chip memory and also one DMA controller.I want to know,how to make data transfer between these two registers using a DMA controller.how and where,i want to mention the address for read and write from DMA.
help me3 Replies
Altera_ForumYou can see sopc generates two different base address for two different register.Using base address you can differentiate and communicate with two registers.For write operation you can use function.IOWR(BASE_ADDRESS,OFFSET,VALUE) and for read operation you can use function IORD(BASE_ADDRESS,OFFSET)
- Altera_Forum--- Quote Start --- You can see sopc generates two different base address for two different register.Using base address you can differentiate and communicate with two registers.For write operation you can use function.IOWR(BASE_ADDRESS,OFFSET,VALUE) and for read operation you can use function IORD(BASE_ADDRESS,OFFSET) --- Quote End --- actually i really want to make data from one component gets transferred to another sir
- Altera_Forum--- Quote Start --- actually i really want to make data from one component gets transferred to another sir --- Quote End --- You can assign address of one of your custom component as a read address of DMA and assign address of other custom component as a write address of DMA.You can find HAL driver of DMA in the user guide of DMA.
