97 lines
2.8 KiB
Python
97 lines
2.8 KiB
Python
# /*****************************************************************************
|
|
# * | File : epdconfig.py
|
|
# * | Author : Waveshare team
|
|
# * | Function : Hardware underlying interface
|
|
# * | Info :
|
|
# *----------------
|
|
# * | This version: V1.0
|
|
# * | Date : 2019-06-06
|
|
# * | 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 Jetson.GPIO as GPIO
|
|
import time
|
|
|
|
import ctypes
|
|
# import spidev
|
|
|
|
# Pin definition
|
|
RST_PIN = 17
|
|
DC_PIN = 25
|
|
CS_PIN = 8
|
|
BUSY_PIN = 24
|
|
|
|
# SPI device, bus = 0, device = 0
|
|
# SPI = spidev.SpiDev(0, 0)
|
|
|
|
clib = ctypes.cdll.LoadLibrary
|
|
spi = clib('../lib/sysfs_software_spi.so')
|
|
# gpio2 = clib('../lib/sysfs_gpio.so')
|
|
|
|
def digital_write(pin, value):
|
|
GPIO.output(pin, value)
|
|
|
|
def digital_read(pin):
|
|
return GPIO.input(BUSY_PIN)
|
|
# return gpio2.SYSFS_GPIO_Read(15)
|
|
|
|
def delay_ms(delaytime):
|
|
time.sleep(delaytime / 1000.0)
|
|
|
|
def spi_writebyte(data):
|
|
# SPI.writebytes(data)
|
|
spi.SYSFS_software_spi_transfer(data[0])
|
|
|
|
def module_init():
|
|
# print("module_init")
|
|
GPIO.setmode(GPIO.BCM)
|
|
GPIO.setwarnings(False)
|
|
# print("RST_PIN")
|
|
GPIO.setup(RST_PIN, GPIO.OUT)
|
|
# print("DC_PIN")
|
|
GPIO.setup(DC_PIN, GPIO.OUT)
|
|
# print("CS_PIN")
|
|
GPIO.setup(CS_PIN, GPIO.OUT)
|
|
# print("BUSY_PIN")
|
|
GPIO.setup(BUSY_PIN, GPIO.IN)
|
|
# SPI.max_speed_hz = 2000000
|
|
# SPI.mode = 0b00
|
|
|
|
# gpio2.SYSFS_GPIO_Export(15)
|
|
# gpio2.SYSFS_GPIO_Direction(15, 0)
|
|
|
|
spi.SYSFS_software_spi_begin()
|
|
return 0
|
|
|
|
|
|
def module_exit():
|
|
print("spi end")
|
|
spi.SYSFS_software_spi_end()
|
|
|
|
print("close 5V, Module enters 0 power consumption ...")
|
|
GPIO.output(RST_PIN, 0)
|
|
GPIO.output(DC_PIN, 0)
|
|
|
|
GPIO.cleanup()
|
|
|
|
|
|
|
|
### END OF FILE ###
|