# /***************************************************************************** # * | File : epdconfig.py # * | Author : Waveshare electrices # * | Function : Hardware underlying interface # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2019-11-01 # * | 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 RPi.GPIO as GPIO import time import os import logging import sys from ctypes import * EPD_SCK_PIN =11 EPD_MOSI_PIN =10 EPD_M1_CS_PIN =8 EPD_S1_CS_PIN =7 EPD_M2_CS_PIN =17 EPD_S2_CS_PIN =18 EPD_M1S1_DC_PIN =13 EPD_M2S2_DC_PIN =22 EPD_M1S1_RST_PIN =6 EPD_M2S2_RST_PIN =23 EPD_M1_BUSY_PIN =5 EPD_S1_BUSY_PIN =19 EPD_M2_BUSY_PIN =27 EPD_S2_BUSY_PIN =24 additional_driver_path = f"{os.path.dirname(os.path.realpath(__file__))}/epd_12_in_48_lib.so" if not os.path.exists(additional_driver_path): RuntimeError("Inkycal cannot find the additional driver files for 12in48 3-colour") spi = CDLL(additional_driver_path) def digital_write(pin, value): GPIO.output(pin, value) def digital_read(pin): return GPIO.input(pin) def spi_writebyte(value): spi.DEV_SPI_WriteByte(value) def delay_ms(delaytime): time.sleep(delaytime / 1000.0) def module_init(): GPIO.setmode(GPIO.BCM) GPIO.setwarnings(False) GPIO.setup(EPD_SCK_PIN, GPIO.OUT) GPIO.setup(EPD_MOSI_PIN, GPIO.OUT) logging.debug("python call wiringPi Lib") GPIO.setup(EPD_M2S2_RST_PIN, GPIO.OUT) GPIO.setup(EPD_M1S1_RST_PIN, GPIO.OUT) GPIO.setup(EPD_M2S2_DC_PIN, GPIO.OUT) GPIO.setup(EPD_M1S1_DC_PIN, GPIO.OUT) GPIO.setup(EPD_S1_CS_PIN, GPIO.OUT) GPIO.setup(EPD_S2_CS_PIN, GPIO.OUT) GPIO.setup(EPD_M1_CS_PIN, GPIO.OUT) GPIO.setup(EPD_M2_CS_PIN, GPIO.OUT) GPIO.setup(EPD_S1_BUSY_PIN, GPIO.IN) GPIO.setup(EPD_S2_BUSY_PIN, GPIO.IN) GPIO.setup(EPD_M1_BUSY_PIN, GPIO.IN) GPIO.setup(EPD_M2_BUSY_PIN, GPIO.IN) digital_write(EPD_M1_CS_PIN, 1) digital_write(EPD_S1_CS_PIN, 1) digital_write(EPD_M2_CS_PIN, 1) digital_write(EPD_S2_CS_PIN, 1) digital_write(EPD_M2S2_RST_PIN, 0) digital_write(EPD_M1S1_RST_PIN, 0) digital_write(EPD_M2S2_DC_PIN, 1) digital_write(EPD_M1S1_DC_PIN, 1) spi.DEV_ModuleInit() def module_exit(): digital_write(EPD_M2S2_RST_PIN, 0) digital_write(EPD_M1S1_RST_PIN, 0) digital_write(EPD_M2S2_DC_PIN, 0) digital_write(EPD_M1S1_DC_PIN, 0) digital_write(EPD_S1_CS_PIN, 1) digital_write(EPD_S2_CS_PIN, 1) digital_write(EPD_M1_CS_PIN, 1) digital_write(EPD_M2_CS_PIN, 1) def spi_readbyte(Reg): GPIO.setup(EPD_MOSI_PIN, GPIO.IN) j=0 # time.sleep(0.01) for i in range(0, 8): GPIO.output(EPD_SCK_PIN, GPIO.LOW) # time.sleep(0.01) j = j << 1 if(GPIO.input(EPD_MOSI_PIN) == GPIO.HIGH): j |= 0x01 else: j &= 0xfe # time.sleep(0.01) GPIO.output(EPD_SCK_PIN, GPIO.HIGH) # time.sleep(0.01) GPIO.setup(EPD_MOSI_PIN, GPIO.OUT) return j def delay_ms(delaytime): time.sleep(delaytime / 1000.0)