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Honored Contributor
Honored ContributorPCIe with DMA interface locks RD_DMA_LAST_PTR reaches 127 (7F)
Hi, I have PCIe Hard IP with internal DMA interface (14.0 compiled). I wrote a PC window 7 device driver. When RD_DMA_LAST_PTR reaches 0x7Fsoftare writes 0x7F and the last descriptor ID to the PTR...
Altera_ForumHonored Contributor
Honored ContributorHi David
Probably you can firstly try use the PCIe Avmm DMA example design and its software Driver that available at below link instead of your own driver. http://www.alterawiki.com/wiki/reference_design:_gen3_x8_avmm_256-bit_dma_for_external_ddr3_-_stratix_v
