def __init__(self,
id=-1,
baudrate=10000000,
polarity=0,
phase=0,
bits=8,
firstbit=MSB,
sck=None,
mosi=None,
miso=None,
pins=None,
controller=None,
cs=0,
cs_hold=3,
spi_mode=0):
mode = ((polarity << 1) | phase) if spi_mode is None else spi_mode
SpiPort.__init__(self, controller, cs, cs_hold, mode)
self.init(baudrate=baudrate,
polarity=polarity,
phase=phase,
bits=bits,
firstbit=firstbit,
sck=sck,
mosi=mosi,
miso=miso,
pins=pins)
def __init__(self,
bus=None,
controller=None,
cs=0,
cs_hold=3,
spi_mode=0,
*args,
**kwargs):
SpiPort.__init__(self, controller, cs, cs_hold, spi_mode)
self.lsbfirst = False
def read_jedec_id(spi: SpiPort) -> bytes:
"""Read flash device JEDEC identifier (3 bytes)"""
jedec_cmd = Array('B', (SerialFlashManager.CMD_JEDEC_ID, ))
return spi.exchange(jedec_cmd, 3).tobytes()
def write(self, buf):
SpiPort.write(self, buf)
def read(self, nbytes, write=0x00):
return SpiPort.read(self, nbytes)
def write(self, buf, start=True, stop=True):
SpiPort.write(self, buf, start, stop)
def read(self, nbytes, write=0x00, start=True, stop=True):
return SpiPort.read(self, nbytes, start, stop)