141 lines
3.7 KiB
Python
141 lines
3.7 KiB
Python
|
# /*****************************************************************************
|
||
|
|
# * | File : epdconfig.py
|
||
|
|
# * | Author : Waveshare team
|
||
|
|
# * | Function : Hardware underlying interface
|
||
|
|
# * | Info :
|
||
|
|
# *----------------
|
||
|
|
# * | This version: V1.0
|
||
|
|
# * | Date : 2020-12-21
|
||
|
|
# * | Info :
|
||
|
|
# ******************************************************************************
|
||
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
# of this software and associated documnetation files (the "Software"), to deal
|
||
|
|
# in the Software without restriction, including without limitation the rights
|
||
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
# copies of the Software, and to permit persons to whom the Software is
|
||
|
|
# furished to do so, subject to the following conditions:
|
||
|
|
#
|
||
|
|
# The above copyright notice and this permission notice shall be included in
|
||
|
|
# all copies or substantial portions of the Software.
|
||
|
|
#
|
||
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
# THE SOFTWARE.
|
||
|
|
#
|
||
|
|
|
||
|
|
import gpiozero
|
||
|
|
import time
|
||
|
|
from smbus import SMBus
|
||
|
|
import spidev
|
||
|
|
import ctypes
|
||
|
|
import logging
|
||
|
|
|
||
|
|
# e-Paper
|
||
|
|
EPD_RST_PIN = 17
|
||
|
|
EPD_DC_PIN = 25
|
||
|
|
EPD_CS_PIN = 8
|
||
|
|
EPD_BUSY_PIN = 24
|
||
|
|
|
||
|
|
# TP
|
||
|
|
TRST = 22
|
||
|
|
INT = 27
|
||
|
|
|
||
|
|
spi = spidev.SpiDev(0, 0)
|
||
|
|
address = 0x0
|
||
|
|
# address = 0x14
|
||
|
|
# address = 0x48
|
||
|
|
bus = SMBus(1)
|
||
|
|
|
||
|
|
|
||
|
|
GPIO_RST_PIN = gpiozero.LED(EPD_RST_PIN)
|
||
|
|
GPIO_DC_PIN = gpiozero.LED(EPD_DC_PIN)
|
||
|
|
# GPIO_CS_PIN = gpiozero.LED(EPD_CS_PIN)
|
||
|
|
GPIO_TRST = gpiozero.LED(TRST)
|
||
|
|
|
||
|
|
GPIO_BUSY_PIN = gpiozero.Button(EPD_BUSY_PIN, pull_up = False)
|
||
|
|
GPIO_INT = gpiozero.Button(INT, pull_up = False)
|
||
|
|
|
||
|
|
|
||
|
|
def digital_write(pin, value):
|
||
|
|
if pin == EPD_RST_PIN:
|
||
|
|
if value:
|
||
|
|
GPIO_RST_PIN.on()
|
||
|
|
else:
|
||
|
|
GPIO_RST_PIN.off()
|
||
|
|
elif pin == EPD_DC_PIN:
|
||
|
|
if value:
|
||
|
|
GPIO_DC_PIN.on()
|
||
|
|
else:
|
||
|
|
GPIO_DC_PIN.off()
|
||
|
|
# elif pin == EPD_CS_PIN:
|
||
|
|
# if value:
|
||
|
|
# GPIO_CS_PIN.on()
|
||
|
|
# else:
|
||
|
|
# GPIO_CS_PIN.off()
|
||
|
|
elif pin == TRST:
|
||
|
|
if value:
|
||
|
|
GPIO_TRST.on()
|
||
|
|
else:
|
||
|
|
GPIO_TRST.off()
|
||
|
|
|
||
|
|
def digital_read(pin):
|
||
|
|
if pin == EPD_BUSY_PIN:
|
||
|
|
return GPIO_BUSY_PIN.value
|
||
|
|
elif pin == INT:
|
||
|
|
return GPIO_INT.value
|
||
|
|
|
||
|
|
def delay_ms(delaytime):
|
||
|
|
time.sleep(delaytime / 1000.0)
|
||
|
|
|
||
|
|
def spi_writebyte(data):
|
||
|
|
spi.writebytes(data)
|
||
|
|
|
||
|
|
def spi_writebyte2(data):
|
||
|
|
spi.writebytes2(data)
|
||
|
|
|
||
|
|
def i2c_writebyte(reg, value):
|
||
|
|
bus.write_word_data(address, (reg>>8) & 0xff, (reg & 0xff) | ((value & 0xff) << 8))
|
||
|
|
|
||
|
|
def i2c_write(reg):
|
||
|
|
bus.write_byte_data(address, (reg>>8) & 0xff, reg & 0xff)
|
||
|
|
|
||
|
|
def i2c_readbyte(reg, len):
|
||
|
|
i2c_write(reg)
|
||
|
|
rbuf = []
|
||
|
|
for i in range(len):
|
||
|
|
rbuf.append(int(bus.read_byte(address)))
|
||
|
|
return rbuf
|
||
|
|
|
||
|
|
def module_init():
|
||
|
|
|
||
|
|
spi.max_speed_hz = 10000000
|
||
|
|
spi.mode = 0b00
|
||
|
|
|
||
|
|
return 0
|
||
|
|
|
||
|
|
def module_exit():
|
||
|
|
logging.debug("spi end")
|
||
|
|
spi.close()
|
||
|
|
bus.close()
|
||
|
|
|
||
|
|
logging.debug("close 5V, Module enters 0 power consumption ...")
|
||
|
|
GPIO_RST_PIN.off()
|
||
|
|
GPIO_DC_PIN.off()
|
||
|
|
# GPIO_CS_PIN.off()
|
||
|
|
GPIO_TRST.off()
|
||
|
|
|
||
|
|
GPIO_RST_PIN.close()
|
||
|
|
GPIO_DC_PIN.close()
|
||
|
|
# GPIO_CS_PIN.close()
|
||
|
|
GPIO_TRST.close()
|
||
|
|
|
||
|
|
GPIO_BUSY_PIN.close()
|
||
|
|
GPIO_INT.close()
|
||
|
|
|
||
|
|
|
||
|
|
### END OF FILE ###
|