roi_harness: Basys3 LED switch demo

Signed-off-by: John McMaster <johndmcmaster@gmail.com>

minitests/roi_harness/.gitignore

@@ -7,3 +7,7 @@
 /vivado*
 /design.txt
 /out_*
+/*.fasm
+/*.bit
+/*.bin
+/*.frm

minitests/roi_harness/demo_sw_led.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+
+import subprocess
+import demo_sw_led_fasm
+import os
+
+def run(roi_dir, swn, ledn):
+    design_txt_fn = roi_dir + '/design.txt'
+    bit_ref_fn = roi_dir + '/design.bit'
+    fasm_fn = 'demo_sw_led.fasm'
+    bit_out_fn = 'demo_sw_led.bit'
+    ocd_cfg = os.getenv('XRAY_DIR') + '/utils/openocd/board-digilent-basys3.cfg'
+
+    # Clean up old tmp files to be sure we are generating them fresh
+    subprocess.call('rm -f %s %s' % (fasm_fn, bit_out_fn), shell=True)
+
+    # subprocess.shell("python3 demo_sw_led.py out_xc7a35tcpg236-1_BASYS3-SWBUT_roi_basev/design.txt 0 0 demo.fasm")
+    demo_sw_led_fasm.run(open(design_txt_fn, 'r'), swn, ledn, open(fasm_fn, 'w'))
+    subprocess.check_call("./fasm2bit.sh %s %s %s" % (fasm_fn, bit_ref_fn , bit_out_fn), shell=True)
+    subprocess.check_call('openocd -f %s -c "init; pld load 0 %s; exit"' % (ocd_cfg, bit_out_fn), shell=True)
+
+if __name__ == '__main__':
+    import argparse
+
+    parser = argparse.ArgumentParser(description='Basys3 switch to LED interconnect demo. Compiles and programs')
+    parser.add_argument('roi_dir', help='ROI project dir for harness .bit and  metadata.txt')
+    parser.add_argument('sw', type=int, help='Switch to use')
+    parser.add_argument('led', type=int, help='LED to use')
+    
+    args = parser.parse_args()
+    run(args.roi_dir, args.sw, args.led)

minitests/roi_harness/demo_sw_led_fasm.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+
+import sys
+import os
+sys.path.append(os.getenv("XRAY_DIR") + "/tools")
+import simpleroute
+
+print()
+print('ready')
+
+def load_design(f):
+    '''
+    name node pin wire
+    clk CLK_HROW_TOP_R_X60Y130/CLK_HROW_CK_BUFHCLK_L0 W5 HCLK_VBRK_X34Y130/HCLK_VBRK_CK_BUFHCLK0
+    din[0] INT_R_X9Y100/NE2BEG3 V17 VBRK_X29Y106/VBRK_NE2A3
+    '''
+    ret = {}
+    f.readline()
+    for l in f:
+        l = l.strip()
+        name,node,pin,wire = l.split(' ')
+        ret[name] = wire
+    return ret
+
+def route2fasm(route, out_f):
+    pips = simpleroute.route(route)
+    for pip in pips:
+        # INT_L_X10Y122.NL1BEG2.NE2END3
+        # to
+        # INT_L_X10Y122.NL1BEG2 NE2END3
+        doti = pip.rfind('.')
+        pip = pip[0:doti] + ' ' + pip[doti + 1:]
+        out_f.write(pip + '\n')
+
+def run(design_f, swn, ledn, out_f):
+    name2wire = load_design(design_f)
+    led_name = 'dout[%d]' % ledn
+    sw_name = 'din[%d]' % swn
+    led_wire = name2wire[led_name]
+    sw_wire = name2wire[sw_name]
+    print('Routing %s (%s) => %s (%s)' % (sw_wire, sw_name, led_wire, led_name))
+
+    route2fasm((sw_wire, led_wire), out_f)
+    # XXX: terminate LEDs so they are off?
+
+if __name__ == '__main__':
+    import argparse
+
+    parser = argparse.ArgumentParser(description='Switch to LED interconnect demo: FASM generator')
+    parser.add_argument('design_txt', help='ROI metadata file')
+    parser.add_argument('sw', type=int, help='Switch to use')
+    parser.add_argument('led', type=int, help='LED to use')
+    # For now can't use stdout since simpleroute is spewing out prints
+    parser.add_argument('out_fasm', help='Output .fasm file')
+    
+    args = parser.parse_args()
+    run(open(args.design_txt, 'r'), args.sw, args.led, open(args.out_fasm, 'w'))

minitests/roi_harness/test_demo_sw_led.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+
+import unittest
+import demo_sw_led
+
+class TestStringMethods(unittest.TestCase):
+    def test_all(self):
+        for i in range(8):
+            print()
+            print()
+            print()
+            print(i)
+            demo_sw_led.run('out_xc7a35tcpg236-1_BASYS3-SWBUT_roi_basev', i, i)
+
+if __name__ == '__main__':
+    unittest.main()