OSError: [Errno 5] EIO - Related to i2c

Support
1

Running the following code:

try:
with open(‘/lib/phew/ID.py’, mode=‘r’) as exfile:
code = exfile.read()
execCode = compile(code, ‘lib/phew/ID.py’, ‘exec’)
exec(execCode)
except Exception as e:
import sys
sys.print_exception(e)
finally:
import XRPLib.resetbot

I get the following error:

MPY: soft reboot
Traceback (most recent call last):
File “”, line 5, in
File “lib/phew/ID.py”, line 1, in
File “/lib/XRPLib/defaults.py”, line 19, in
File “/lib/XRPLib/imu.py”, line 26, in get_default_imu
File “/lib/XRPLib/imu.py”, line 59, in init
File “/lib/XRPLib/imu.py”, line 155, in is_connected
File “/lib/XRPLib/imu.py”, line 106, in _getreg
OSError: [Errno 5] EIO

running an i2c scan:

from machine import Pin, SoftI2C

You can choose any other combination of I2C pins

i2c = SoftI2C(scl=Pin(5), sda=Pin(4))

print(‘I2C SCANNER’)
devices = i2c.scan()

if len(devices) == 0:
print(“No i2c device !”)
else:
print(‘i2c devices found:’, len(devices))

for device in devices:
print("I2C hexadecimal address: ", hex(device))

I get:

I2C SCANNER
i2c devices found: 112
I2C hexadecimal address: 0x8
I2C hexadecimal address: 0x9
I2C hexadecimal address: 0xa
I2C hexadecimal address: 0xb
I2C hexadecimal address: 0xc
I2C hexadecimal address: 0xd
I2C hexadecimal address: 0xe
I2C hexadecimal address: 0xf
I2C hexadecimal address: 0x10
I2C hexadecimal address: 0x11
I2C hexadecimal address: 0x12
I2C hexadecimal address: 0x13
I2C hexadecimal address: 0x14
I2C hexadecimal address: 0x15
I2C hexadecimal address: 0x16
I2C hexadecimal address: 0x17
I2C hexadecimal address: 0x18
I2C hexadecimal address: 0x19
I2C hexadecimal address: 0x1a
I2C hexadecimal address: 0x1b
I2C hexadecimal address: 0x1c
I2C hexadecimal address: 0x1d
I2C hexadecimal address: 0x1e
I2C hexadecimal address: 0x1f
I2C hexadecimal address: 0x20
I2C hexadecimal address: 0x21
I2C hexadecimal address: 0x22
I2C hexadecimal address: 0x23
I2C hexadecimal address: 0x24
I2C hexadecimal address: 0x25
I2C hexadecimal address: 0x26
I2C hexadecimal address: 0x27
I2C hexadecimal address: 0x28
I2C hexadecimal address: 0x29
I2C hexadecimal address: 0x2a
I2C hexadecimal address: 0x2b
I2C hexadecimal address: 0x2c
I2C hexadecimal address: 0x2d
I2C hexadecimal address: 0x2e
I2C hexadecimal address: 0x2f
I2C hexadecimal address: 0x30
I2C hexadecimal address: 0x31
I2C hexadecimal address: 0x32
I2C hexadecimal address: 0x33
I2C hexadecimal address: 0x34
I2C hexadecimal address: 0x35
I2C hexadecimal address: 0x36
I2C hexadecimal address: 0x37
I2C hexadecimal address: 0x38
I2C hexadecimal address: 0x39
I2C hexadecimal address: 0x3a
I2C hexadecimal address: 0x3b
I2C hexadecimal address: 0x3c
I2C hexadecimal address: 0x3d
I2C hexadecimal address: 0x3e
I2C hexadecimal address: 0x3f
I2C hexadecimal address: 0x40
I2C hexadecimal address: 0x41
I2C hexadecimal address: 0x42
I2C hexadecimal address: 0x43
I2C hexadecimal address: 0x44
I2C hexadecimal address: 0x45
I2C hexadecimal address: 0x46
I2C hexadecimal address: 0x47
I2C hexadecimal address: 0x48
I2C hexadecimal address: 0x49
I2C hexadecimal address: 0x4a
I2C hexadecimal address: 0x4b
I2C hexadecimal address: 0x4c
I2C hexadecimal address: 0x4d
I2C hexadecimal address: 0x4e
I2C hexadecimal address: 0x4f
I2C hexadecimal address: 0x50
I2C hexadecimal address: 0x51
I2C hexadecimal address: 0x52
I2C hexadecimal address: 0x53
I2C hexadecimal address: 0x54
I2C hexadecimal address: 0x55
I2C hexadecimal address: 0x56
I2C hexadecimal address: 0x57
I2C hexadecimal address: 0x58
I2C hexadecimal address: 0x59
I2C hexadecimal address: 0x5a
I2C hexadecimal address: 0x5b
I2C hexadecimal address: 0x5c
I2C hexadecimal address: 0x5d
I2C hexadecimal address: 0x5e
I2C hexadecimal address: 0x5f
I2C hexadecimal address: 0x60
I2C hexadecimal address: 0x61
I2C hexadecimal address: 0x62
I2C hexadecimal address: 0x63
I2C hexadecimal address: 0x64
I2C hexadecimal address: 0x65
I2C hexadecimal address: 0x66
I2C hexadecimal address: 0x67
I2C hexadecimal address: 0x68
I2C hexadecimal address: 0x69
I2C hexadecimal address: 0x6a
I2C hexadecimal address: 0x6b
I2C hexadecimal address: 0x6c
I2C hexadecimal address: 0x6d
I2C hexadecimal address: 0x6e
I2C hexadecimal address: 0x6f
I2C hexadecimal address: 0x70
I2C hexadecimal address: 0x71
I2C hexadecimal address: 0x72
I2C hexadecimal address: 0x73
I2C hexadecimal address: 0x74
I2C hexadecimal address: 0x75
I2C hexadecimal address: 0x76
I2C hexadecimal address: 0x77

Not sure what is going on, other than it looks like the code is attempting to read something from memory and its getting an IO error (access?)

2

The on board IMU (gyros and accelerometers) are on the 12C bus. I looks like you are moving the 12C bus to GPIO 4&5 so the IMU code can no longer get data from the IMU on GPIO 18 & 19 casing an Errno 5.

3

Missed one thing…

brand-new out of the box… no code changes, all ports setup properly, 19 other one setup the same exact way and they all work…

Any suggestions?

4

Oh, and If I insert the i2c scan in the code (inside of the imu._getreg() function),
the scan does not list anything…

Wondering if there a hardware issue?

5

removed all code from the PICO, and rebuilt from another one…

everything works now.