def checkPortStatus(self, update_button_state):
try:
with serial.Serial(self.port[0],
115200,
timeout=0.2,
writeTimeout=0.2) as ser:
fpga = TinyFPGAB(ser)
if fpga.is_bootloader_active():
com_port_status_sv.set(
"Connected to TinyFPGA B2. Ready to program.")
return True
else:
com_port_status_sv.set(
"Unable to communicate with TinyFPGA. Reconnect and reset TinyFPGA before programming."
)
return False
except serial.SerialTimeoutException:
com_port_status_sv.set(
"Hmm...try pressing the reset button on TinyFPGA again.")
return False
except:
com_port_status_sv.set(
"Bootloader not active. Press reset button on TinyFPGA before programming."
)
return False
def test_is_bootloader_active(success_after):
# prepare
calls = []
fpga = TinyFPGAB(None)
read_id = ['ABC'] * success_after + ['\x1f\x84\x01']
# patching methods
fpga.wake = lambda *a: calls.append(('wake', a))
fpga.read = lambda *a: calls.append(('read', a))
fpga.read_id = lambda *a: calls.append(('read_id', a)) or read_id.pop(0)
# run
output = fpga.is_bootloader_active()
# check
assert output == (success_after < 6)
expected_calls = [
('wake', ()),
('read', (0, 16)),
('wake', ()),
('read_id', ()),
] * min(success_after + 1, 6)
assert calls == expected_calls
def test_is_bootloader_active(success_after):
# prepare
calls = []
fpga = TinyFPGAB(None)
read_id = ['ABC'] * success_after + [b'\x1f\x84\x01']
# patching methods
fpga.wake = lambda *a: calls.append(('wake', a))
fpga.read = lambda *a: calls.append(('read', a))
fpga.read_id = lambda *a: calls.append(('read_id', a)) or read_id.pop(0)
# run
output = fpga.is_bootloader_active()
# check
assert output == (success_after < 6)
expected_calls = [
('wake', ()),
('read', (0, 16)),
('wake', ()),
('read_id', ()),
] * min(success_after + 1, 6)
assert calls == expected_calls
def _main():
import argparse
from serial.tools.list_ports import comports
from tinyfpgab import TinyFPGAB
parser = argparse.ArgumentParser()
parser.add_argument("-l",
"--list",
action="store_true",
help="list connected and active TinyFPGA B-series "
"boards")
parser.add_argument("-p",
"--program",
type=str,
help="program TinyFPGA board with the given bitstream")
parser.add_argument("-b",
"--boot",
action="store_true",
help="command the TinyFPGA B-series board to exit the "
"bootloader and load the user configuration")
parser.add_argument("-c", "--com", type=str, help="serial port name")
parser.add_argument("-d",
"--device",
type=str,
default="1209:2100",
help="device id (vendor:product); default is "
"TinyFPGA-B (1209:2100)")
parser.add_argument("-a",
"--addr",
type=int,
help="force the address to write the bitstream to")
args = parser.parse_args()
print ""
print " TinyFPGA B-series Programmer CLI"
print " --------------------------------"
device = args.device.lower().replace(':', '')
if len(device) != 8 or not all(c in '0123456789abcdef' for c in device):
print " Invalid device id, use format vendor:product"
sys.exit(1)
device = '{}:{}'.format(device[:4], device[4:])
print " Using device id {}".format(device)
active_boards = [p[0] for p in comports() if device in p[2].lower()]
# find port to use
active_port = None
if args.com is not None:
active_port = args.com
elif not active_boards:
print " No port was specified and no active bootloaders found."
print " Activate bootloader by pressing the reset button."
sys.exit(1)
elif len(active_boards) == 1:
print " Only one board with active bootloader, using it."
active_port = active_boards[0]
else:
print " Please choose a board with the -c option."
# list boards
if args.list or active_port is None:
print " Boards with active bootloaders:"
for p in active_boards:
print " " + p
if len(active_boards) == 0:
print " No active bootloaders found. Check USB connections"
print " and press reset button to activate bootloader."
# program the flash memory
elif args.program is not None:
print " Programming " + active_port + " with " + args.program
def progress(info):
if isinstance(info, str):
print " " + info
for attempt in range(3):
with serial.Serial(active_port,
115200,
timeout=0.2,
writeTimeout=0.2) as ser:
fpga = TinyFPGAB(ser, progress)
(addr, bitstream) = fpga.slurp(args.program)
if args.addr is not None:
addr = args.addr
if addr < 0:
print " Negative write addr: {}".format(addr)
sys.exit(1)
if addr + len(bitstream) >= 0x400000:
print " Write addr over 4Mio: {}".format(addr)
sys.exit(1)
if not fpga.is_bootloader_active():
print " Bootloader not active"
continue
print " Programming at addr {:06x}".format(addr)
if fpga.program_bitstream(addr, bitstream):
sys.exit(0)
else:
continue
# boot the FPGA
if args.boot:
print " Booting " + active_port
with serial.Serial(active_port, 115200, timeout=0.2,
writeTimeout=0.2) as ser:
fpga = TinyFPGAB(ser)
fpga.boot()
elif args.program is not None:
# exit with error if programming is not successful
sys.exit(1)
def _main():
import argparse
from serial.tools.list_ports import comports
from tinyfpgab import TinyFPGAB
parser = argparse.ArgumentParser()
parser.add_argument("-l", "--list", action="store_true",
help="list connected and active TinyFPGA B-series "
"boards")
parser.add_argument("-p", "--program", type=str,
help="program TinyFPGA board with the given bitstream")
parser.add_argument("-b", "--boot", action="store_true",
help="command the TinyFPGA B-series board to exit the "
"bootloader and load the user configuration")
parser.add_argument("-c", "--com", type=str, help="serial port name")
parser.add_argument("-d", "--device", type=str, default="1209:2100",
help="device id (vendor:product); default is "
"TinyFPGA-B (1209:2100)")
parser.add_argument("-a", "--addr", type=int,
help="force the address to write the bitstream to")
args = parser.parse_args()
print("")
print(" TinyFPGA B-series Programmer CLI")
print(" --------------------------------")
device = args.device.lower().replace(':', '')
if len(device) != 8 or not all(c in '0123456789abcdef' for c in device):
print(" Invalid device id, use format vendor:product")
sys.exit(1)
device = '{}:{}'.format(device[:4], device[4:])
print(" Using device id {}".format(device))
active_boards = [p[0] for p in comports() if device in p[2].lower()]
# find port to use
active_port = None
if args.com is not None:
active_port = args.com
elif not active_boards:
print(" No port was specified and no active bootloaders found.")
print(" Activate bootloader by pressing the reset button.")
sys.exit(1)
elif len(active_boards) == 1:
print(" Only one board with active bootloader, using it.")
active_port = active_boards[0]
else:
print(" Please choose a board with the -c option.")
# list boards
if args.list or active_port is None:
print(" Boards with active bootloaders:")
for p in active_boards:
print(" " + p)
if len(active_boards) == 0:
print(" No active bootloaders found. Check USB connections")
print(" and press reset button to activate bootloader.")
# program the flash memory
elif args.program is not None:
print(" Programming " + active_port + " with " + args.program)
def progress(info):
if isinstance(info, str):
print(" " + info)
for attempt in range(3):
with serial.Serial(active_port, 115200, timeout=0.2,
writeTimeout=0.2) as ser:
fpga = TinyFPGAB(ser, progress)
(addr, bitstream) = fpga.slurp(args.program)
if args.addr is not None:
addr = args.addr
if addr < 0:
print(" Negative write addr: {}".format(addr))
sys.exit(1)
if addr + len(bitstream) >= 0x400000:
print(" Write addr over 4Mio: {}".format(addr))
sys.exit(1)
fpga.is_bootloader_active()
if not fpga.is_bootloader_active():
print(" Bootloader not active")
continue
print(" Programming at addr {:06x}".format(addr))
if fpga.program_bitstream(addr, bitstream):
sys.exit(0)
else:
continue
# boot the FPGA
if args.boot:
print(" Booting " + active_port)
with serial.Serial(active_port, 115200, timeout=0.2,
writeTimeout=0.2) as ser:
fpga = TinyFPGAB(ser)
fpga.boot()
elif args.program is not None:
# exit with error if programming is not successful
sys.exit(1)