#用树莓派读霍尔磁性传感器的寄存器值，程序是在网上找大佬的移植过来的，但是跑起来老是会报错，请大佬帮我看下我究竟是哪里有问题，谢谢。 #GPIO设定的pin为 SDA=GPIO3,SCL=GPIO5

from smbus2 import SMBus import time import RPi.GPIO as GPIO PUD_DICT = { 2:GPIO.PUD_OFF, 0:GPIO.PUD_UP, 1:GPIO.PUD_DOWN } class Rpi: def _init_(self,*args,**kwargs): GPIO.setmode(GPIO.BOARD) def config_pin(self,*args,**kwargs): pin = kwargs["pin"] level = kwargs["level"] direct = kwargs["direct"] pull_up_down = kwargs.get("pud",None) if direct == 0: GPIO.setup(pin,GPIO.IN) elif direct == 1: GPIO.setup(pin,GPIO.OUT) GPIO.OUT(pin,level) if not pull_up_down: GPIO.setup(pin,GPIO.IN,pull_up_down=PUD_DICT[pull_up_down]) def get_pin_status(self,pin): return {"level":GPIO.input(pin)} class SoftwareI2C: def _init_(self,scl_pin,sda_pin): self._board = Rpi() self.scl_pin = scl_pin self.sda_pin = sda_pin self.i2c_delay = 100 self._board_config_pin(pin=self.scl_pin,direct=0,pud=0) self._board_config_pin(pin=self.scl_pin,direct=0,pud=0) def wait_microseconds(self,duration): begin_time = datetime.datetime.now() while True: end_time = datetime.datetime.now() d_time = end_time.microsecond - begin_time.microsecond if d_time > duration: break def pull(self,pin): """Drives the line and returns line status""" self._board.config_pin(pin,direct=1,level=0) self.wait_microseconds(self.i2c_delay) def release(self,pin): """Releases the line and returns ling status""" self._board.config_pin(pin,direct=1,level=1) self.wait_microseconds(self.i2c_delay) def release_wait(self,pin): """ direct=1,level=1)""" while not self.get_pin_status(pin)["level"]: self.wait_microseconds(self.i2c_delay) self.wait_microseconds(self.i2c_delay) def start(self): self.release(self.sda_pin) self.release_wait(self.scl_pin) self.pull(self.sda_pin) self.pull(self.scl_pin) def stop(self): self.pull(self.sda_pin) self.pull(self.scl_pin) self.wait_microseconds(self.i2c_delay) self.release(self.scl_pin) self.wait_microseconds(self.i2c_delay) self.release(self.sda_pin) def send_bit(self,bit): if bit: self.release(self.sda_pin) else: self.pull(self.sda_pin) self.release_wait(self.scl_pin) self.pull(self.scl_pin) self.pull(self.sda_pin) def read_bit(self): self.release(self.sda_pin) self._board.config_pin(self.sda_pin,direct=0,level=1) self.release_wait(self.scl_pin) bit = self._board.get_pin_status(self.sda_pin)["level"] self.pull(self.scl_pin) self.pull(self.sda_pin) return bit def send_byte(self,byte): for i in range(8): self.send_bit(byte & 0x80) byte = byte << 1 self.read_bit() def read_byte(self): byte = 0x00 for i in range(8): byte = (byte<<1) | self.read_bit() self.read_bit() return byte #3D Hall sensor(TLI493DA2B6HTSA1) write and read sw_i2c = SoftwareI2C() #Write 0x88 0x19 to reg0x10 sw_i2c.start() sw_i2c.send_byte(0x35<<1|0x00) sw_i2c.send_byte(0x10) sw_i2c.send_byte(0x88) sw_i2c.send_byte(0x19) sw_i2c.stop() time.sleep() #Read data from 0x00-0x06 sw_i2c.start() sw_i2c.send_byte(0x35<<1|0x00) sw_i2c.send_byte(0x20) sw_i2c.start() sw_i2c.send_byte(0x35<<1|0x01) print(sw_i2c.read_byte()) print(sw_i2c.read_byte()) print(sw_i2c.read_byte()) sw_i2c.stop()