def checkPortStatus(self, update_button_state):
global port_success
with serial.Serial(self.port[0],
12000000,
timeout=.5,
writeTimeout=0.1) as ser:
async_serial = tinyfpgaa.SyncSerial(ser)
pins = tinyfpgaa.JtagTinyFpgaProgrammer(async_serial)
jtag = tinyfpgaa.Jtag(pins)
programmer = tinyfpgaa.JtagCustomProgrammer(jtag)
port_success = False
def status_callback(status):
global port_success
if status == [0x43, 0x80, 0x2B, 0x01]:
com_port_status_sv.set(
"Connected to TinyFPGA A1. Ready to program.")
port_success = True
elif status == [0x43, 0xA0, 0x2B, 0x01]:
com_port_status_sv.set(
"Connected to TinyFPGA A2. Ready to program.")
port_success = True
else:
com_port_status_sv.set(
"Cannot identify FPGA. Please ensure proper FPGA power and JTAG connection."
)
port_success = False
### read idcode
programmer.write_ir(8, 0xE0)
programmer.read_dr(32, status_callback, blocking=True)
return port_success
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-q", action="store_true", help="Silent mode.")
parser.add_argument("-p", type=str, help="Manually specify serial device.")
parser.add_argument("-b",
action="store_true",
help="Input is bitstream file.")
parser.add_argument("jed",
type=str,
help="JEDEC or bitstream file to program.")
args = parser.parse_args()
if not args.p:
for port in comports():
if "1209:2101" in port[2]:
a_port = port[0]
break
else:
print("TinyFPGA A not detected! Is it plugged in?")
sys.exit(1)
else:
a_port = args.p
with serial.Serial(a_port, 12000000, timeout=10, writeTimeout=5) as ser:
async_serial = tinyfpgaa.SyncSerial(ser)
pins = tinyfpgaa.JtagTinyFpgaProgrammer(async_serial)
jtag = tinyfpgaa.Jtag(pins)
programmer = tinyfpgaa.JtagCustomProgrammer(jtag)
if not args.q:
if args.b:
print("Parsing bitstream file...")
else:
print("Parsing JEDEC file...")
if args.b:
input_file = tinyfpgaa.BitstreamFile(open(args.jed, 'rb'))
else:
input_file = tinyfpgaa.JedecFile(open(args.jed, 'r'))
try:
if not args.q:
print("Programming TinyFPGA A on {}...".format(a_port))
programmer.program(input_file)
except:
print("Programming Failed!")
traceback.print_exc()
sys.exit(2)
print("Programming finished without error.")
def program(self, filename, progress):
global max_progress
with serial.Serial(self.port[0], 12000000, timeout=10, writeTimeout=5) as ser:
async_serial = tinyfpgaa.SyncSerial(ser)
pins = tinyfpgaa.JtagTinyFpgaProgrammer(async_serial)
jtag = tinyfpgaa.Jtag(pins)
programmer = tinyfpgaa.JtagCustomProgrammer(jtag)
progress("Parsing JEDEC file")
jedec_file = tinyfpgaa.JedecFile(open(filename, 'r'))
max_progress = jedec_file.numRows() * 3
try:
programmer.program(jedec_file, progress)
except:
program_failure = True
self.reset()
traceback.print_exc()