#!/bin/bash

# --- CONFIGURATION ---
PROJECTNAME=SOC
DEVICE='GW2A-LV18PG256C8/I7'
BOARD='tangprimer20k'
BOARD_FREQ=27
CPU_FREQ=50
VERILOGS=$1

# --- Synthesis with Yosys ---
yosys -q -DPRIMER20K -DBOARD_FREQ=$BOARD_FREQ -DCPU_FREQ=$CPU_FREQ -D INV_BTN=0 -p "
    read_verilog $VERILOGS;
    synth_gowin -top $PROJECTNAME -json $PROJECTNAME.json -family gw2a" || exit 1

# --- Placement and Routing with nextpnr-himbaechel ---
nextpnr-himbaechel \
    --json $PROJECTNAME.json \
    --write $PROJECTNAME"_pnr.json" \
    --device $DEVICE \
    --vopt cst=BOARDS/$BOARD.cst \
    --vopt family=GW2A-18 \
    --freq $BOARD_FREQ || exit 1

# --- Bitstream Packing with gowin_pack ---
gowin_pack -d $DEVICE -o $PROJECTNAME.fs $PROJECTNAME"_pnr.json" || exit 1

# --- Programming with openFPGALoader ---
openFPGALoader -b tangprimer20k $PROJECTNAME.fs || exit 1