# sys bram (use only when dma is not capable of keeping up). # generic fifo interface - existence is oblivious to software. proc p_sys_dmafifo {p_name m_name m_width} { global ad_hdl_dir set p_instance [get_bd_cells $p_name] set c_instance [current_bd_instance .] current_bd_instance $p_instance set m_instance [create_bd_cell -type hier $m_name] current_bd_instance $m_instance create_bd_pin -dir I -type clk axi_clk create_bd_pin -dir I axi_xfer_req create_bd_pin -dir O -from 4 -to 0 axi_xfer_status create_bd_pin -dir I adc_rst create_bd_pin -dir I -type clk adc_clk create_bd_pin -dir I adc_wr create_bd_pin -dir O adc_wovf create_bd_pin -dir I -from [expr ($m_width-1)] -to 0 adc_wdata create_bd_pin -dir I dma_rstn create_bd_pin -dir I -type clk dma_clk create_bd_pin -dir O dma_wvalid create_bd_pin -dir I dma_wready create_bd_pin -dir I dma_wovf create_bd_pin -dir O -from 63 -to 0 dma_wdata set axi_fifo2f [create_bd_cell -type ip -vlnv analog.com:user:axi_fifo2f:1.0 axi_fifo2f] set_property -dict [list CONFIG.ADC_DATA_WIDTH $m_width] $axi_fifo2f set_property -dict [list CONFIG.DMA_DATA_WIDTH {64}] $axi_fifo2f set_property -dict [list CONFIG.DMA_READY_ENABLE {1}] $axi_fifo2f set_property -dict [list CONFIG.MEM_ADDRLIMIT {0x00001000}] $axi_fifo2f set dma_fifo [create_bd_cell -type ip -vlnv xilinx.com:ip:fifo_generator:12.0 dma_fifo] set_property -dict [list CONFIG.INTERFACE_TYPE {Native}] $dma_fifo set_property -dict [list CONFIG.Fifo_Implementation {Independent_Clocks_Block_RAM}] $dma_fifo set_property -dict [list CONFIG.asymmetric_port_width {true}] $dma_fifo set_property -dict [list CONFIG.Input_Data_Width $m_width] $dma_fifo set_property -dict [list CONFIG.Input_Depth {64}] $dma_fifo set_property -dict [list CONFIG.Output_Data_Width {64}] $dma_fifo set_property -dict [list CONFIG.Overflow_Flag {true}] $dma_fifo connect_bd_net -net adc_clk [get_bd_pins adc_clk] connect_bd_net -net dma_clk [get_bd_pins dma_clk] connect_bd_net -net adc_clk [get_bd_pins dma_fifo/wr_clk] connect_bd_net -net dma_clk [get_bd_pins dma_fifo/rd_clk] connect_bd_net -net adc_clk [get_bd_pins axi_fifo2f/adc_clk] connect_bd_net -net dma_clk [get_bd_pins axi_fifo2f/dma_clk] connect_bd_net -net adc_rst [get_bd_pins adc_rst] [get_bd_pins axi_fifo2f/adc_rst] connect_bd_net -net dma_rstn [get_bd_pins dma_rstn] [get_bd_pins axi_fifo2f/dma_rstn] connect_bd_net -net adc_wr [get_bd_pins adc_wr] [get_bd_pins axi_fifo2f/adc_wr] connect_bd_net -net adc_wdata [get_bd_pins adc_wdata] [get_bd_pins axi_fifo2f/adc_wdata] connect_bd_net -net adc_wovf [get_bd_pins adc_wovf] [get_bd_pins axi_fifo2f/adc_wovf] connect_bd_net -net dma_wvalid [get_bd_pins dma_wvalid] [get_bd_pins axi_fifo2f/dma_wr] connect_bd_net -net dma_wdata [get_bd_pins dma_wdata] [get_bd_pins axi_fifo2f/dma_wdata] connect_bd_net -net dma_wready [get_bd_pins dma_wready] [get_bd_pins axi_fifo2f/dma_wready] connect_bd_net -net dma_wovf [get_bd_pins dma_wovf] [get_bd_pins axi_fifo2f/dma_wovf] connect_bd_net -net axi_xfer_req [get_bd_pins axi_xfer_req] [get_bd_pins axi_fifo2f/dma_xfer_req] connect_bd_net -net axi_xfer_status [get_bd_pins axi_xfer_status] [get_bd_pins axi_fifo2f/dma_xfer_status] connect_bd_net -net dma_fifo_rst [get_bd_pins axi_fifo2f/fifo_rst] [get_bd_pins dma_fifo/rst] connect_bd_net -net dma_fifo_wr [get_bd_pins axi_fifo2f/fifo_wr] [get_bd_pins dma_fifo/wr_en] connect_bd_net -net dma_fifo_wdata [get_bd_pins axi_fifo2f/fifo_wdata] [get_bd_pins dma_fifo/din] connect_bd_net -net dma_fifo_wfull [get_bd_pins axi_fifo2f/fifo_wfull] [get_bd_pins dma_fifo/full] connect_bd_net -net dma_fifo_wovf [get_bd_pins axi_fifo2f/fifo_wovf] [get_bd_pins dma_fifo/overflow] connect_bd_net -net dma_fifo_rd [get_bd_pins axi_fifo2f/fifo_rd] [get_bd_pins dma_fifo/rd_en] connect_bd_net -net dma_fifo_rdata [get_bd_pins axi_fifo2f/fifo_rdata] [get_bd_pins dma_fifo/dout] connect_bd_net -net dma_fifo_rempty [get_bd_pins axi_fifo2f/fifo_rempty] [get_bd_pins dma_fifo/empty] current_bd_instance $c_instance }