Forum Posts
Debasish Panda
Apr 16, 2021
In RB-i.MX 6UL
import mraa # x is your i2c bus instance........... # 0x50 is the i2c client............... x = mraa.I2c(0) x.address(0x50) reg = int(input("read the register from: ")) d = x.readReg(reg) print("stored data is: " + str(d)) Able to store a value in eeprom using write command but unable to read that. While executing the code getting the error.... root@rb-imx6ul:~# python3 read_eeprom read the register from: 51 Traceback (most recent call last): File "read_eeprom", line 10, in <module> d = x.readReg(reg) File "/usr/lib/python3.5/site-packages/mraa.py", line 549, in readReg return _mraa.I2c_readReg(self, reg) ValueError: Unknown error in I2c::readReg() why this error please let me know....???
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Debasish Panda
Dec 08, 2020
In RB-i.MX 6UL
import time
import serial
ser = serial.Serial(
port='/dev/ttyUSB0',
baudrate=115200,
parity=serial.PARITY_ODD,
stopbits=serial.STOPBITS_TWO,
bytesize=serial.SEVENBITS
)
ser.isOpen()
print ('Enter your commands below.\r\nInsert "exit" to leave the application.')
input=1
while 1 :
input = raw_input(">> ")
if input == 'exit':
ser.close()
exit()
else:
ser.write(input + '\r\n')
out = ''
time.sleep(1)
while ser.inWaiting() > 0:
out += ser.read(1)
if out != '':
print( ">>" + out)
~
root@rb-imx6ul:~# python3 diesel.py
Traceback (most recent call last):
File "diesel.py", line 2, in <module>
import serial
File "/home/root/serial.py", line 4, in <module>
ser = serial.Serial(
AttributeError: module 'serial' has no attribute 'Serial'
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51