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Untested support for other resolutions.

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antirez
2024-03-16 11:36:10 +01:00
parent 4bcc3e4633
commit b25f52c527
1 changed files with 24 additions and 9 deletions
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33
uc8151.py
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@@ -143,20 +143,22 @@ HZ_100 = const(0b00111010)
HZ_200 = const(0b00111001)
class UC8151:
def __init__(self,spi,*,cs,dc,rst,busy,speed=0,mirror_x=False,mirror_y=False,inverted=False,no_flickering=False):
def __init__(self,spi,*,cs,dc,rst,busy,width=128,height=296,speed=0,mirror_x=False,mirror_y=False,inverted=False,no_flickering=False):
self.spi = spi
self.cs = Pin(cs,Pin.OUT) if cs != None else None
self.dc = Pin(dc,Pin.OUT) if dc != None else None
self.rst = Pin(rst,Pin.OUT) if rst != None else None
self.busy = Pin(busy,Pin.IN) if busy != None else None
self.width = width
self.height = height
self.speed = speed
self.no_flickering = no_flickering
self.inverted = inverted
self.mirror_x = mirror_x
self.mirror_y = mirror_y
self.initialize_display()
self.raw_fb = bytearray(128*296//8)
self.fb = framebuf.FrameBuffer(self.raw_fb,128,296,framebuf.MONO_HLSB)
self.raw_fb = bytearray(width*height//8)
self.fb = framebuf.FrameBuffer(self.raw_fb,width,height,framebuf.MONO_HLSB)
# Return true if the display is busy performing an update, or also
# if for any other reason it is not able to accept commands right now.
@@ -197,7 +199,19 @@ class UC8151:
self.wait_ready()
# Panel configuration: resolution, format and so forth.
psr_settings = RES_128x296 | FORMAT_BW | BOOSTER_ON | RESET_NONE
psr_settings = FORMAT_BW | BOOSTER_ON | RESET_NONE
if self.width == 96 and self.height == 230:
prs_settings |= RES_96x230
elif self.width == 96 and self.height == 252:
prs_settings |= RES_96x252
elif self.width == 128 and self.height == 296:
prs_settings |= RES_128x296
elif self.width == 160 and self.height == 296:
prs_settings |= RES_160x296
else:
raise ValueError("Unsupported display resolution specified")
# If we select the default update speed, we will use the
# lookup tables defined by the device. Otherwise the values for
# the lookup tables must be read from the registers we set.
@@ -549,7 +563,7 @@ class UC8151:
# Read image data.
f = open(filename,"rb")
f.read(4)
imgdata = bytearray(128*296)
imgdata = bytearray(self.width*self.height)
f.readinto(imgdata)
print("Image max luminance:",max(imgdata))
for i in range(len(imgdata)):
@@ -576,7 +590,7 @@ class UC8151:
# Pixel that reached level "1" are the only ones at the
# current grey level we want to set.
if imgdata[i] == 1:
self.fb.pixel(i%128,i//128,1)
self.fb.pixel(i%self.width,i//self.width,1)
anypixel = True
# We decrement all the pixels not yet at 0, so successive
# level of greys will appear at value "1".
@@ -598,8 +612,9 @@ class UC8151:
VCOM[5] = 1
self.write(CMD_LUT_VCOM,VCOM)
print("start update grey level",g)
self.update(blocking=True)
print("Grey level",g)
print("end update")
# Restore a normal LUT based on configured speed.
self.set_waveform_lut()
@@ -611,10 +626,10 @@ if __name__ == "__main__":
spi = SPI(0, baudrate=12000000, phase=0, polarity=0, sck=Pin(18), mosi=Pin(19), miso=Pin(16))
eink = UC8151(spi,cs=17,dc=20,rst=21,busy=26,speed=2,no_flickering=False)
eink.load_greyscale_image("dama.grey")
eink.load_greyscale_image("hopper.grey")
STOP
#eink.set_handmade_lut()
# eink.set_handmade_lut()
for speed in [2,3,4.3,5]:
for noflick in [False,True]: