def write_flash(port, start_address, data, retry=2, is_wireless=False):
data = bytearray(data)
if len(data) > 256:
click.echo('Tried writing too much data at once! ({} bytes)'.format(
len(data)))
return False
port.read_all()
c_addr = compute_address_commandable(start_address)
debug('Writing {} bytes to {}'.format(len(data), adr_to_str(c_addr)))
response = send_bootloader_command(port, 0x31)
if response is None or len(response) < 1 or response[0] != ACK:
if retry > 0:
debug('RETRYING PACKET AT COMMAND')
return write_flash(port, start_address, data, retry=retry - 1)
else:
click.echo('failed (write command not accepted)')
return False
port.write(c_addr)
port.flush()
time.sleep(0.005 if is_wireless else 0.002)
response = port.read(1)
debug_response(adr_to_str(c_addr), response)
if response is None or len(response) < 1 or response[0] != ACK:
if retry > 0:
debug('RETRYING PACKET AT ADDRESS')
return write_flash(port, start_address, data, retry=retry - 1)
else:
click.echo('failed (address not accepted)')
return False
checksum = len(data) - 1
for x in data:
checksum ^= x
send_data = data[:]
send_data.insert(0, len(send_data) - 1)
send_data.append(checksum)
port.write(send_data)
port.flush()
time.sleep(0.007 if is_wireless else 0.002)
response = port.read(1)
debug('STM BL RESPONSE TO WRITE: {}'.format(response))
if response is None or len(response) < 1 or response[0] != ACK:
if retry > 0:
debug('RETRYING PACKET AT WRITE')
return write_flash(port, start_address, data, retry=retry - 1)
else:
click.echo('failed (could not complete upload)')
return False
port.flush()
port.reset_input_buffer()
return True
def send_go_command(port, address):
click.echo("Executing binary...", nl=False)
address = compute_address_commandable(address)
debug("Executing binary at {}".format(adr_to_str(address)))
response = send_bootloader_command(port, 0x21, 1)
if response is None or response[0] != ACK:
click.echo("failed (execute command not accepted)")
return False
port.write(address)
port.flush()
click.echo("complete")
return True
def send_go_command(port, address, retry=3):
click.echo('Executing user code... ', nl=False)
c_addr = compute_address_commandable(address)
debug('Executing binary at {}'.format(adr_to_str(c_addr)))
response = send_bootloader_command(port, 0x21, 1)
debug_response(0x21, response)
if response is None or len(response) < 1 or response[0] != ACK:
click.echo('failed (execute command not accepted)')
return False
time.sleep(0.01)
port.write(c_addr)
time.sleep(0.01)
response = port.read(1)
debug_response(adr_to_str(c_addr), response)
if response is None or len(response) < 1 or response[0] != ACK:
click.echo(
'user code might not have started properly. May need to restart Cortex'
)
else:
click.echo('complete')
return True
def send_go_command(port, address):
click.echo('Executing binary...', nl=False)
address = compute_address_commandable(address)
debug('Executing binary at {}'.format(adr_to_str(address)))
response = send_bootloader_command(port, 0x21, 1)
if response is None or response[0] != ACK:
click.echo('failed (execute command not accepted)')
return False
port.write(address)
port.flush()
click.echo('complete')
return True
def write_flash(port, start_address, data):
data = bytearray(data)
if len(data) > 256:
click.echo('Tried writing too much data at once! ({} bytes)'.format(
len(data)))
return False
port.read_all()
start_address = compute_address_commandable(start_address)
debug('Writing {} bytes to {}'.format(len(data),
adr_to_str(start_address)))
response = send_bootloader_command(port, 0x31)
if response is None or response[0] != ACK:
click.echo('failed (write command not accepted)')
return False
port.write(start_address)
port.flush()
response = port.read(1)
debug_response(adr_to_str(start_address), response)
if response is None or response[0] != ACK:
click.echo('failed (address not accepted)')
return False
checksum = len(data) - 1
for x in data:
checksum ^= x
data.insert(0, len(data) - 1)
data.append(checksum)
port.write(data)
time.sleep(0.005)
response = port.read(1)
if response is None or response[0] != ACK:
port.write(data)
time.sleep(20)
response = port.read(1)
if response is None or response[0] != ACK:
click.echo('failed (could not complete upload)')
return False
port.flush()
port.reset_input_buffer()
return True
def write_flash(port, start_address, data):
data = bytearray(data)
if len(data) > 256:
click.echo("Tried writing too much data at once! ({} bytes)".format(len(data)))
return False
port.read_all()
start_address = compute_address_commandable(start_address)
debug("Writing {} bytes to {}".format(len(data), adr_to_str(start_address)))
response = send_bootloader_command(port, 0x31)
if response is None or response[0] != ACK:
click.echo("failed (write command not accepted)")
return False
port.write(start_address)
port.flush()
response = port.read(1)
debug_response(adr_to_str(start_address), response)
if response is None or response[0] != ACK:
click.echo("failed (address not accepted)")
return False
checksum = len(data) - 1
for x in data:
checksum ^= x
data.insert(0, len(data) - 1)
data.append(checksum)
port.write(data)
time.sleep(0.005)
response = port.read(1)
if response is None or response[0] != ACK:
port.write(data)
time.sleep(20)
response = port.read(1)
if response is None or response[0] != ACK:
click.echo("failed (could not complete upload)")
return False
port.flush()
port.reset_input_buffer()
return True