204 lines
7.0 KiB
Python
204 lines
7.0 KiB
Python
"""
|
|
* | File : epd7in5bc.py
|
|
* | Author : Waveshare team
|
|
* | Function : Electronic paper driver
|
|
* | Info :
|
|
*----------------
|
|
* | This version: V4.0
|
|
* | Date : 2019-06-20
|
|
# | Info : python demo
|
|
-----------------------------------------------------------------------------
|
|
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 logging
|
|
from inkycal.display.drivers import epdconfig
|
|
|
|
# Display resolution
|
|
EPD_WIDTH = 880
|
|
EPD_HEIGHT = 528
|
|
|
|
|
|
class EPD:
|
|
def __init__(self):
|
|
self.reset_pin = epdconfig.RST_PIN
|
|
self.dc_pin = epdconfig.DC_PIN
|
|
self.busy_pin = epdconfig.BUSY_PIN
|
|
self.cs_pin = epdconfig.CS_PIN
|
|
self.width = EPD_WIDTH
|
|
self.height = EPD_HEIGHT
|
|
|
|
# Hardware reset
|
|
def reset(self):
|
|
epdconfig.digital_write(self.reset_pin, 1)
|
|
epdconfig.delay_ms(200)
|
|
epdconfig.digital_write(self.reset_pin, 0)
|
|
epdconfig.delay_ms(4)
|
|
epdconfig.digital_write(self.reset_pin, 1)
|
|
epdconfig.delay_ms(200)
|
|
|
|
def send_command(self, command):
|
|
epdconfig.digital_write(self.dc_pin, 0)
|
|
epdconfig.digital_write(self.cs_pin, 0)
|
|
epdconfig.spi_writebyte([command])
|
|
epdconfig.digital_write(self.cs_pin, 1)
|
|
|
|
def send_data(self, data):
|
|
epdconfig.digital_write(self.dc_pin, 1)
|
|
epdconfig.digital_write(self.cs_pin, 0)
|
|
epdconfig.spi_writebyte([data])
|
|
epdconfig.digital_write(self.cs_pin, 1)
|
|
|
|
def ReadBusy(self):
|
|
logging.debug("e-Paper busy")
|
|
busy = epdconfig.digital_read(self.busy_pin)
|
|
while (busy == 1):
|
|
busy = epdconfig.digital_read(self.busy_pin)
|
|
epdconfig.delay_ms(200)
|
|
|
|
def init(self):
|
|
if (epdconfig.module_init() != 0):
|
|
return -1
|
|
|
|
self.reset()
|
|
|
|
self.send_command(0x12) # SWRESET
|
|
self.ReadBusy() # waiting for the electronic paper IC to release the idle signal
|
|
|
|
self.send_command(0x46) # Auto Write RAM
|
|
self.send_data(0xF7)
|
|
self.ReadBusy() # waiting for the electronic paper IC to release the idle signal
|
|
|
|
self.send_command(0x47) # Auto Write RAM
|
|
self.send_data(0xF7)
|
|
self.ReadBusy() # waiting for the electronic paper IC to release the idle signal
|
|
|
|
self.send_command(0x0C) # Soft start setting
|
|
self.send_data(0xAE)
|
|
self.send_data(0xC7)
|
|
self.send_data(0xC3)
|
|
self.send_data(0xC0)
|
|
self.send_data(0x40)
|
|
|
|
self.send_command(0x01) # Set MUX as 527
|
|
self.send_data(0xAF)
|
|
self.send_data(0x02)
|
|
self.send_data(0x01)
|
|
|
|
self.send_command(0x11) # Data entry mode
|
|
self.send_data(0x01)
|
|
|
|
self.send_command(0x44)
|
|
self.send_data(0x00) # RAM x address start at 0
|
|
self.send_data(0x00)
|
|
self.send_data(0x6F) # RAM x address end at 36Fh -> 879
|
|
self.send_data(0x03)
|
|
self.send_command(0x45)
|
|
self.send_data(0xAF) # RAM y address start at 20Fh
|
|
self.send_data(0x02)
|
|
self.send_data(0x00) # RAM y address end at 00h
|
|
self.send_data(0x00)
|
|
|
|
self.send_command(0x3C) # VBD
|
|
self.send_data(0x01) # LUT1, for white
|
|
|
|
self.send_command(0x18)
|
|
self.send_data(0X80)
|
|
self.send_command(0x22)
|
|
self.send_data(0XB1) # Load Temperature and waveform setting.
|
|
self.send_command(0x20)
|
|
self.ReadBusy() # waiting for the electronic paper IC to release the idle signal
|
|
|
|
self.send_command(0x4E)
|
|
self.send_data(0x00)
|
|
self.send_data(0x00)
|
|
self.send_command(0x4F)
|
|
self.send_data(0xAF)
|
|
self.send_data(0x02)
|
|
|
|
return 0
|
|
|
|
def getbuffer(self, image):
|
|
# logging.debug("bufsiz = ",int(self.width/8) * self.height)
|
|
buf = [0xFF] * (int(self.width / 8) * self.height)
|
|
image_monocolor = image.convert('1')
|
|
imwidth, imheight = image_monocolor.size
|
|
pixels = image_monocolor.load()
|
|
logging.debug('imwidth = %d imheight = %d ', imwidth, imheight)
|
|
if (imwidth == self.width and imheight == self.height):
|
|
logging.debug("Horizontal")
|
|
for y in range(imheight):
|
|
for x in range(imwidth):
|
|
# Set the bits for the column of pixels at the current position.
|
|
if pixels[x, y] == 0:
|
|
buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8))
|
|
elif (imwidth == self.height and imheight == self.width):
|
|
logging.debug("Vertical")
|
|
for y in range(imheight):
|
|
for x in range(imwidth):
|
|
newx = y
|
|
newy = self.height - x - 1
|
|
if pixels[x, y] == 0:
|
|
buf[int((newx + newy * self.width) / 8)] &= ~(0x80 >> (y % 8))
|
|
return buf
|
|
|
|
def display(self, imageblack, imagered):
|
|
self.send_command(0x4F)
|
|
self.send_data(0xAf)
|
|
|
|
self.send_command(0x24)
|
|
for i in range(0, int(self.width * self.height / 8)):
|
|
self.send_data(imageblack[i])
|
|
|
|
self.send_command(0x26)
|
|
for i in range(0, int(self.width * self.height / 8)):
|
|
self.send_data(~imagered[i])
|
|
|
|
self.send_command(0x22)
|
|
self.send_data(0xC7) # Load LUT from MCU(0x32)
|
|
self.send_command(0x20)
|
|
epdconfig.delay_ms(200) # !!!The delay here is necessary, 200uS at least!!!
|
|
self.ReadBusy()
|
|
|
|
def Clear(self):
|
|
self.send_command(0x4F)
|
|
self.send_data(0xAf)
|
|
|
|
self.send_command(0x24)
|
|
for i in range(0, int(self.width * self.height / 8)):
|
|
self.send_data(0xff)
|
|
|
|
self.send_command(0x26)
|
|
for i in range(0, int(self.width * self.height / 8)):
|
|
self.send_data(0x00)
|
|
|
|
self.send_command(0x22)
|
|
self.send_data(0xC7) # Load LUT from MCU(0x32)
|
|
self.send_command(0x20)
|
|
epdconfig.delay_ms(200) # !!!The delay here is necessary, 200uS at least!!!
|
|
self.ReadBusy()
|
|
|
|
def sleep(self):
|
|
self.send_command(0x10) # deep sleep
|
|
self.send_data(0x01)
|
|
|
|
epdconfig.module_exit()
|
|
### END OF FILE ###
|