daveshah1

// Harris

block harris(clock<rising,126e6>, enable, unsigned<6>[3] input) => (unsigned<6>[3] output) {
  /*convert image to greyscale*/
  stream2d<unsigned<6>, 7, 7, 1024> greyscale;
  greyscale << ((input[0] + input[1] + input[2]) / 3);
  /*obtain x and y derivatives*/
  /*signed<7>[5][5] mx = {{0, 1, 0, -1, 0},
                        {2, 20, 0, -20, -2},
                        {5, 55, 0, -55, -5},

daveshah1

#!/usr/bin/env bash
set -ex
cp soc_ethernetsoc_arty/gateware/*.init .
yosys -p "scratchpad -set xilinx_dsp.multonly 1; synth_xilinx -noclkbuf -nowidelut -flatten -top top; write_json litex.json" `grep -Po '(?<=read_verilog {)[^}]*' soc_ethernetsoc_arty/gateware/top.tcl` `grep -Po '(?<=read_verilog )[^ ]*$' soc_ethernetsoc_arty/gateware/top.ys`
nextpnr-xilinx --chipdb ../../nextpnr-xilinx/xilinx/xc7a35t.bin --xdc soc_ethernetsoc_arty/gateware/top.xdc --json litex.json --write litex_routed.json --fasm litex.fasm
source ${XRAY_DIR}/utils/environment.sh
${XRAY_UTILS_DIR}/fasm2frames.py --part xc7a35tcsg324-1 --db-root ${XRAY_UTILS_DIR}/../database/artix7 litex.fasm > litex.frames
${XRAY_TOOLS_DIR}/xc7frames2bit --part_file ${XRAY_UTILS_DIR}/../database/artix7/xc7a35tcsg324-1.yaml --part_name xc7a35tcsg324-1  --frm_file litex.frames --output_file litex.bit

daveshah1

import re, sys

extras = {
	("ddram", "dm"): [("IOStandard", "POD12_DCI")],
	("ddram", "dq"): [
		("IOStandard", "POD12_DCI"),
		("Misc", "PRE_EMPHASIS=RDRV_240"),
		("Misc", "EQUALIZATION=EQ_LEVEL2"),
	],
	("ddram", "dqs_p"): [