Unit Ext IO

Example

from m5stack import *
from m5ui import *
from uiflow import *
import time
import unit

setScreenColor(0x222222)
ext_io_0 = unit.get(unit.EXT_IO, unit.PORTA)

ext_io_0.setPortMode(ext_io_0.ALL_OUTPUT)
while True:
  ext_io_0.digitWrite(1,0)
  wait(0.2)
  ext_io_0.digitWrite(2,0)
  wait(0.2)
  ext_io_0.digitWrite(3,0)
  wait(0.2)
  ext_io_0.digitWrite(4,0)
  wait(0.2)
  ext_io_0.digitWrite(1,1)
  wait(0.2)
  ext_io_0.digitWrite(2,1)
  wait(0.2)
  ext_io_0.digitWrite(3,1)
  wait(0.2)
  ext_io_0.digitWrite(4,1)
  wait(0.2)
  wait_ms(2)

API

print(ext_io_0.digitReadPort())

• Read all pin status

print(ext_io_0.digitRead(0))

• Reads the specified pin state

ext_io_0.digitWrite(0,0)

• Pin state is controlled separately

ext_io_0.digitWritePort(0x68)

• Control pin state, each pin corresponds to 1 bit

ext_io_0.setPinMode(0, ext_io_0.INPUT)

• Set the input or output separately

ext_io_0.setPortMode(ext_io_0.ALL_INPUT)

• All pins are set to input or output mode