def _request_SPI(self, slot):
self._open_connection(slot)
self.spi.xfer2([
Command.ENUMERATE.value,
])
time.sleep(0.01)
request = self.spi.readbytes(1)
if LOOPBACK:
return request
time.sleep(0.01)
response = []
for i in range(0, request[0]):
response.append(self.spi.readbytes(1)[0])
print("Hexdump:", response)
response = str(bytes(response), 'ascii')
try:
module = Module.create_from_string(slot, response)
except (TypeError, KeyError):
print("Error detecting device on slot {}".format(slot))
module = None
self._close_connection()
return module
def _request_SPI(self, slot):
self._open_connection(slot)
self.spi.xfer2([
Command.ENUMERATE.value,
])
time.sleep(0.01)
request = self.spi.readbytes(1)
if LOOPBACK:
return request
module = None
retry = 0
while not module:
retry += 1
time.sleep(0.01)
response = []
for i in range(0, request[0]):
current_byte = self.spi.readbytes(1)[0]
if current_byte == b'\0':
print("Zero error")
current_byte = self.spi.readbytes(1)[0]
response.append(current_byte)
time.sleep(0.0001)
response = str(bytes(response), 'ascii')
try:
module = Module.create_from_string(slot, response)
except (TypeError, KeyError):
module = None
if retry > 3:
print("Error detecting device on slot {}".format(slot))
print("Hexdump:", response)
break
self._close_connection()
return module
def _request_SPI(self,slot):
self._open_connection(slot)
self.spi.xfer2([Command.ENUMERATE.value,])
time.sleep(0.01)
request = self.spi.readbytes(1)
if LOOPBACK:
return request
time.sleep(0.01)
response = []
for i in range(0,request[0]):
response.append(self.spi.readbytes(1)[0])
print("Hexdump:",response)
response = str(bytes(response),'ascii')
try:
module = Module.create_from_string(slot,response)
except (TypeError,KeyError):
print("Error detecting device on slot {}".format(slot))
module = None
self._close_connection()
return module
