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# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams for Adafruit Industries
#
# SPDX-License-Identifier: MIT
# Basic smbus test. This is pretty ugly and meant to be run against a ADS1x15
# and some output inspected by a Saleae logic analyzer. TODO: Refactor into
# something that can test without hardware?
import binascii
from Adafruit_PureIO import smbus
DEVICE_ADDR = 0x48
REGISTER = 0x01
# Test open and close.
i2c = smbus.SMBus()
i2c.open(1)
val = i2c.read_byte(DEVICE_ADDR)
print("read_byte from 0x{0:0X}: 0x{1:0X}".format(REGISTER, val))
i2c.close()
# Test initializer open.
i2c = smbus.SMBus(1)
val = i2c.read_byte(DEVICE_ADDR)
print("read_byte from 0x{0:0X}: 0x{1:0X}".format(REGISTER, val))
i2c.close()
# Test various data reads.
with smbus.SMBus(1) as i2c:
val = i2c.read_byte(DEVICE_ADDR)
print("read_byte from 0x{0:0X}: 0x{1:0X}".format(REGISTER, val))
val = i2c.read_byte_data(DEVICE_ADDR, REGISTER)
print("read_byte_data from 0x{0:0X}: 0x{1:0X}".format(REGISTER, val))
val = i2c.read_word_data(DEVICE_ADDR, REGISTER)
print("read_word_data from 0x{0:0X}: 0x{1:04X}".format(REGISTER, val))
val = i2c.read_i2c_block_data(DEVICE_ADDR, REGISTER, 2)
print(
"read_i2c_block_data from 0x{0:0X}: 0x{1}".format(
REGISTER, binascii.hexlify(val)
)
)
# Test various data writes.
with smbus.SMBus(1) as i2c:
i2c.write_byte(DEVICE_ADDR, REGISTER)
i2c.write_byte_data(DEVICE_ADDR, REGISTER, 0x85)
i2c.write_word_data(DEVICE_ADDR, REGISTER, 0x8385)
i2c.write_i2c_block_data(DEVICE_ADDR, REGISTER, [0x85, 0x83])
# i2c.write_block_data(DEVICE_ADDR, REGISTER, [0x85, 0x83])
i2c.write_quick(DEVICE_ADDR)
# Process call test.
with smbus.SMBus(1) as i2c:
val = i2c.process_call(DEVICE_ADDR, REGISTER, 0x8385)
print("process_call from 0x{0:0X}: 0x{1:04X}".format(REGISTER, val))
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