def main():
'''
Decode and draw jpg on display
'''
try:
spi = SPI(1, SPI.MASTER, baudrate=42000000, prescaler=2)
# initialize display
tft = st7789.ST7789(spi,
240,
320,
reset=Pin('X3', Pin.OUT),
cs=Pin('X5', Pin.OUT),
dc=Pin('X4', Pin.OUT),
backlight=Pin('X2', Pin.OUT),
rotation=3)
# enable display and clear screen
tft.init()
# display jpg
tft.jpg("bigbuckbunny.jpg", 0, 0, st7789.SLOW)
finally:
# shutdown spi
spi.deinit()
def main():
'''
Draw on screen using map_bitarray_to_rgb565
'''
try:
# initialize display spi port
spi = SPI(1, SPI.MASTER, baudrate=42000000, prescaler=2)
# configure display
tft = st7789.ST7789(spi,
240,
320,
reset=Pin('X3', Pin.OUT),
cs=Pin('X5', Pin.OUT),
dc=Pin('X4', Pin.OUT),
backlight=Pin('X2', Pin.OUT),
rotation=3)
# enable display and clear screen
tft.init()
tft.fill(st7789.BLACK)
sprite = bytearray(512)
# create pacman spites in random positions
sprites = []
for man in range(SPRITES):
sprites.append(
pacman(random.randint(0,
tft.width() - SPRITE_WIDTH),
random.randint(0,
tft.height() - SPRITE_HEIGHT),
random.randint(0, SPRITE_STEPS - 1)))
# move and draw sprites
while True:
for man in sprites:
# move the sprite
man.move()
# convert bitmap into rgb565 blitable buffer
tft.map_bitarray_to_rgb565(SPRITE_BITMAPS[man.step], sprite,
SPRITE_WIDTH, st7789.YELLOW,
st7789.BLACK)
# blit the buffer to the display
tft.blit_buffer(sprite, man.x, man.y, SPRITE_WIDTH,
SPRITE_HEIGHT)
time.sleep(0.1)
finally:
# shutdown spi
spi.deinit()
def main():
'''
Draw and move sprite
'''
try:
spi = SPI(1, SPI.MASTER, baudrate=42000000, prescaler=2)
# initialize display
tft = st7789.ST7789(spi,
240,
320,
reset=Pin('X3', Pin.OUT),
cs=Pin('X5', Pin.OUT),
dc=Pin('X4', Pin.OUT),
backlight=Pin('X2', Pin.OUT),
rotation=3)
# enable display and clear screen
tft.init()
tft.fill(st7789.BLACK)
# create toast spites in random positions
sprites = [
toast(TOASTERS, 320 - 64, 0),
toast(TOAST, 320 - 64 * 2, 80),
toast(TOASTERS, 320 - 64 * 4, 160)
]
# move and draw sprites
while True:
for man in sprites:
bitmap = man.sprites[man.step]
tft.fill_rect(man.x + bitmap.WIDTH - man.speed, man.y,
man.speed, bitmap.HEIGHT, st7789.BLACK)
man.move()
if man.x > 0:
tft.bitmap(bitmap, man.x, man.y)
else:
tft.fill_rect(0, man.y, bitmap.WIDTH, bitmap.HEIGHT,
st7789.BLACK)
time.sleep(0.05)
finally:
# shutdown spi
spi.deinit()
print(spi)
spi = SPI(1, SPI.CONTROLLER)
spi = SPI(1, SPI.CONTROLLER, baudrate=500000)
spi = SPI(1,
SPI.CONTROLLER,
500000,
polarity=1,
phase=0,
bits=8,
firstbit=SPI.MSB,
ti=False,
crc=None)
print(str(spi)[:32], str(spi)[53:]) # don't print baudrate/prescaler
spi.init(SPI.PERIPHERAL, phase=1)
print(spi)
try:
# need to flush input before we get an error (error is what we want to test)
for i in range(10):
spi.recv(1, timeout=100)
except OSError:
print("OSError")
spi.init(SPI.CONTROLLER)
spi.send(1, timeout=100)
print(spi.recv(1, timeout=100))
print(spi.send_recv(1, timeout=100))
spi.deinit()
for bus in (-1, 0, 1, 2, 3, "X", "Y", "Z"):
try:
SPI(bus)
print("SPI", bus)
except ValueError:
print("ValueError", bus)
spi = SPI(1)
print(spi)
spi = SPI(1, SPI.MASTER)
spi = SPI(1, SPI.MASTER, baudrate=500000)
spi = SPI(1, SPI.MASTER, 500000, polarity=1, phase=0, bits=8, firstbit=SPI.MSB, ti=False, crc=None)
print(spi)
spi.init(SPI.SLAVE, phase=1)
print(spi)
try:
# need to flush input before we get an error (error is what we want to test)
for i in range(10):
spi.recv(1, timeout=100)
except OSError:
print("OSError")
spi.init(SPI.MASTER)
spi.send(1, timeout=100)
print(spi.recv(1, timeout=100))
print(spi.send_recv(1, timeout=100))
spi.deinit()