86 lines
No EOL
2.5 KiB
Python
86 lines
No EOL
2.5 KiB
Python
# /*****************************************************************************
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# * | File : epdconfig.py
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# * | Author : Waveshare team
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# * | Function : Hardware underlying interface
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# * | Info :
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# *----------------
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# * | This version: V1.0
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# * | Date : 2019-06-21
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# * | Info :
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# ******************************************************************************
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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import os
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import logging
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import sys
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import time
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import spidev
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from RPi import GPIO
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# Pin definition
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RST_PIN = 17
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DC_PIN = 25
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CS_PIN = 8
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BUSY_PIN = 24
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logger = logging.getLogger(__name__)
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SPI = spidev.SpiDev()
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def digital_write(pin, value):
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GPIO.output(pin, value)
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def digital_read(pin):
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return GPIO.input(pin)
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def delay_ms(delaytime):
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time.sleep(delaytime / 1000.0)
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def spi_writebyte(data):
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SPI.writebytes(data)
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def spi_writebyte2(data):
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SPI.writebytes2(data)
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def module_init():
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO.setup(RST_PIN, GPIO.OUT)
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GPIO.setup(DC_PIN, GPIO.OUT)
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GPIO.setup(CS_PIN, GPIO.OUT)
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GPIO.setup(BUSY_PIN, GPIO.IN)
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# SPI device, bus = 0, device = 0
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SPI.open(0, 0)
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SPI.max_speed_hz = 4000000
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SPI.mode = 0b00
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return 0
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def module_exit():
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logger.debug("spi end")
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SPI.close()
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logger.debug("close 5V, Module enters 0 power consumption ...")
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GPIO.output(RST_PIN, 0)
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GPIO.output(DC_PIN, 0)
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GPIO.cleanup()
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### END OF FILE ### |