2020-12-10
This commit is contained in:
hnwangkg-ezio
parent
751a9fb93f
commit
04d4621789
493 changed files with 128794 additions and 677 deletions
203
RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5.py
Normal file
203
RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5.py
Normal file
|
|
@ -0,0 +1,203 @@
|
|||
# *****************************************************************************
|
||||
# * | File : epd7in5.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 . import epdconfig
|
||||
|
||||
# Display resolution
|
||||
EPD_WIDTH = 640
|
||||
EPD_HEIGHT = 384
|
||||
|
||||
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(5)
|
||||
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")
|
||||
while(epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy
|
||||
epdconfig.delay_ms(100)
|
||||
logging.debug("e-Paper busy release")
|
||||
|
||||
def init(self):
|
||||
if (epdconfig.module_init() != 0):
|
||||
return -1
|
||||
# EPD hardware init start
|
||||
self.reset()
|
||||
|
||||
self.send_command(0x01) # POWER_SETTING
|
||||
self.send_data(0x37)
|
||||
self.send_data(0x00)
|
||||
|
||||
self.send_command(0x00) # PANEL_SETTING
|
||||
self.send_data(0xCF)
|
||||
self.send_data(0x08)
|
||||
|
||||
self.send_command(0x06) # BOOSTER_SOFT_START
|
||||
self.send_data(0xc7)
|
||||
self.send_data(0xcc)
|
||||
self.send_data(0x28)
|
||||
|
||||
self.send_command(0x04) # POWER_ON
|
||||
self.ReadBusy()
|
||||
|
||||
self.send_command(0x30) # PLL_CONTROL
|
||||
self.send_data(0x3c)
|
||||
|
||||
self.send_command(0x41) # TEMPERATURE_CALIBRATION
|
||||
self.send_data(0x00)
|
||||
|
||||
self.send_command(0x50) # VCOM_AND_DATA_INTERVAL_SETTING
|
||||
self.send_data(0x77)
|
||||
|
||||
self.send_command(0x60) # TCON_SETTING
|
||||
self.send_data(0x22)
|
||||
|
||||
self.send_command(0x61) # TCON_RESOLUTION
|
||||
self.send_data(EPD_WIDTH >> 8) #source 640
|
||||
self.send_data(EPD_WIDTH & 0xff)
|
||||
self.send_data(EPD_HEIGHT >> 8) #gate 384
|
||||
self.send_data(EPD_HEIGHT & 0xff)
|
||||
|
||||
self.send_command(0x82) # VCM_DC_SETTING
|
||||
self.send_data(0x1E) # decide by LUT file
|
||||
|
||||
self.send_command(0xe5) # FLASH MODE
|
||||
self.send_data(0x03)
|
||||
|
||||
# EPD hardware init end
|
||||
return 0
|
||||
|
||||
def getbuffer(self, image):
|
||||
logging.debug("1234")
|
||||
buf = [0x00] * int(self.width * self.height / 4)
|
||||
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):
|
||||
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] < 64: # black
|
||||
buf[int((x + y * self.width) / 4)] &= ~(0xC0 >> (x % 4 * 2))
|
||||
elif pixels[x, y] < 192: # convert gray to red
|
||||
buf[int((x + y * self.width) / 4)] &= ~(0xC0 >> (x % 4 * 2))
|
||||
buf[int((x + y * self.width) / 4)] |= 0x40 >> (x % 4 * 2)
|
||||
else: # white
|
||||
buf[int((x + y * self.width) / 4)] |= 0xC0 >> (x % 4 * 2)
|
||||
elif(imwidth == self.height and imheight == self.width):
|
||||
for y in range(imheight):
|
||||
for x in range(imwidth):
|
||||
newx = y
|
||||
newy = self.height - x - 1
|
||||
if pixels[x, y] < 64: # black
|
||||
buf[int((newx + newy*self.width) / 4)] &= ~(0xC0 >> (y % 4 * 2))
|
||||
elif pixels[x, y] < 192: # convert gray to red
|
||||
buf[int((newx + newy*self.width) / 4)] &= ~(0xC0 >> (y % 4 * 2))
|
||||
buf[int((newx + newy*self.width) / 4)] |= 0x40 >> (y % 4 * 2)
|
||||
else: # white
|
||||
buf[int((newx + newy*self.width) / 4)] |= 0xC0 >> (y % 4 * 2)
|
||||
return buf
|
||||
|
||||
def display(self, image):
|
||||
self.send_command(0x10)
|
||||
for i in range(0, int(self.width / 4 * self.height)):
|
||||
temp1 = image[i]
|
||||
j = 0
|
||||
while (j < 4):
|
||||
if ((temp1 & 0xC0) == 0xC0):
|
||||
temp2 = 0x03
|
||||
elif ((temp1 & 0xC0) == 0x00):
|
||||
temp2 = 0x00
|
||||
else:
|
||||
temp2 = 0x04
|
||||
temp2 = (temp2 << 4) & 0xFF
|
||||
temp1 = (temp1 << 2) & 0xFF
|
||||
j += 1
|
||||
if((temp1 & 0xC0) == 0xC0):
|
||||
temp2 |= 0x03
|
||||
elif ((temp1 & 0xC0) == 0x00):
|
||||
temp2 |= 0x00
|
||||
else:
|
||||
temp2 |= 0x04
|
||||
temp1 = (temp1 << 2) & 0xFF
|
||||
self.send_data(temp2)
|
||||
j += 1
|
||||
|
||||
self.send_command(0x12)
|
||||
epdconfig.delay_ms(100)
|
||||
self.ReadBusy()
|
||||
|
||||
def Clear(self):
|
||||
self.send_command(0x10)
|
||||
for i in range(0, int(self.width / 4 * self.height)):
|
||||
for j in range(0, 4):
|
||||
self.send_data(0x33)
|
||||
|
||||
self.send_command(0x12)
|
||||
self.ReadBusy()
|
||||
|
||||
def sleep(self):
|
||||
self.send_command(0x02) # POWER_OFF
|
||||
self.ReadBusy()
|
||||
|
||||
self.send_command(0x07) # DEEP_SLEEP
|
||||
self.send_data(0XA5)
|
||||
|
||||
def Dev_exit(self):
|
||||
epdconfig.module_exit()
|
||||
### END OF FILE ###
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue