162 lines
4.6 KiB
Python
162 lines
4.6 KiB
Python
# Driver test for official MicroPython LCD160CR display
|
|
# MIT license; Copyright (c) 2017 Damien P. George
|
|
|
|
import time, math, framebuf, lcd160cr
|
|
|
|
def get_lcd(lcd):
|
|
if type(lcd) is str:
|
|
lcd = lcd160cr.LCD160CR(lcd)
|
|
return lcd
|
|
|
|
def show_adc(lcd, adc):
|
|
data = [adc.read_core_temp(), adc.read_core_vbat(), 3.3]
|
|
try:
|
|
data[2] = adc.read_vref()
|
|
except:
|
|
pass
|
|
for i in range(3):
|
|
lcd.set_text_color((825, 1625, 1600)[i], 0)
|
|
lcd.set_font(2)
|
|
lcd.set_pos(0, 100 + i * 16)
|
|
lcd.write('%4s: ' % ('TEMP', 'VBAT', 'VREF')[i])
|
|
if i > 0:
|
|
s = '%6.3fV' % data[i]
|
|
else:
|
|
s = '%5.1f°C' % data[i]
|
|
lcd.set_font(1, bold=0, scale=1)
|
|
lcd.write(s)
|
|
|
|
def test_features(lcd):
|
|
# if we run on pyboard then use ADC and RTC features
|
|
try:
|
|
import pyb
|
|
adc = pyb.ADCAll(12, 0xf0000)
|
|
rtc = pyb.RTC()
|
|
except:
|
|
adc = None
|
|
rtc = None
|
|
|
|
# set orientation and clear screen
|
|
lcd = get_lcd(lcd)
|
|
lcd.set_orient(lcd160cr.PORTRAIT)
|
|
lcd.set_pen(0, 0)
|
|
lcd.erase()
|
|
|
|
# create M-logo
|
|
mlogo = framebuf.FrameBuffer(bytearray(17 * 17 * 2), 17, 17, framebuf.RGB565)
|
|
mlogo.fill(0)
|
|
mlogo.fill_rect(1, 1, 15, 15, 0xffffff)
|
|
mlogo.vline(4, 4, 12, 0)
|
|
mlogo.vline(8, 1, 12, 0)
|
|
mlogo.vline(12, 4, 12, 0)
|
|
mlogo.vline(14, 13, 2, 0)
|
|
|
|
# create inline framebuf
|
|
offx = 14
|
|
offy = 19
|
|
w = 100
|
|
h = 75
|
|
fbuf = framebuf.FrameBuffer(bytearray(w * h * 2), w, h, framebuf.RGB565)
|
|
lcd.set_spi_win(offx, offy, w, h)
|
|
|
|
# initialise loop parameters
|
|
tx = ty = 0
|
|
t0 = time.ticks_us()
|
|
|
|
for i in range(300):
|
|
# update position of cross-hair
|
|
t, tx2, ty2 = lcd.get_touch()
|
|
if t:
|
|
tx2 -= offx
|
|
ty2 -= offy
|
|
if tx2 >= 0 and ty2 >= 0 and tx2 < w and ty2 < h:
|
|
tx, ty = tx2, ty2
|
|
else:
|
|
tx = (tx + 1) % w
|
|
ty = (ty + 1) % h
|
|
|
|
# create and show the inline framebuf
|
|
fbuf.fill(lcd.rgb(128 + int(64 * math.cos(0.1 * i)), 128, 192))
|
|
fbuf.line(w // 2, h // 2,
|
|
w // 2 + int(40 * math.cos(0.2 * i)),
|
|
h // 2 + int(40 * math.sin(0.2 * i)),
|
|
lcd.rgb(128, 255, 64))
|
|
fbuf.hline(0, ty, w, lcd.rgb(64, 64, 64))
|
|
fbuf.vline(tx, 0, h, lcd.rgb(64, 64, 64))
|
|
fbuf.rect(tx - 3, ty - 3, 7, 7, lcd.rgb(64, 64, 64))
|
|
for phase in (-0.2, 0, 0.2):
|
|
x = w // 2 - 8 + int(50 * math.cos(0.05 * i + phase))
|
|
y = h // 2 - 8 + int(32 * math.sin(0.05 * i + phase))
|
|
fbuf.blit(mlogo, x, y)
|
|
for j in range(-3, 3):
|
|
fbuf.text('MicroPython',
|
|
5, h // 2 + 9 * j + int(20 * math.sin(0.1 * (i + j))),
|
|
lcd.rgb(128 + 10 * j, 0, 128 - 10 * j))
|
|
lcd.show_framebuf(fbuf)
|
|
|
|
# show results from the ADC
|
|
if adc:
|
|
show_adc(lcd, adc)
|
|
|
|
# show the time
|
|
if rtc:
|
|
lcd.set_pos(2, 0)
|
|
lcd.set_font(1)
|
|
t = rtc.datetime()
|
|
lcd.write('%4d-%02d-%02d %2d:%02d:%02d.%01d' % (t[0], t[1], t[2], t[4], t[5], t[6], t[7] // 100000))
|
|
|
|
# compute the frame rate
|
|
t1 = time.ticks_us()
|
|
dt = time.ticks_diff(t1, t0)
|
|
t0 = t1
|
|
|
|
# show the frame rate
|
|
lcd.set_pos(2, 9)
|
|
lcd.write('%.2f fps' % (1000000 / dt))
|
|
|
|
def test_mandel(lcd):
|
|
# set orientation and clear screen
|
|
lcd = get_lcd(lcd)
|
|
lcd.set_orient(lcd160cr.PORTRAIT)
|
|
lcd.set_pen(0, 0xffff)
|
|
lcd.erase()
|
|
|
|
# function to compute Mandelbrot pixels
|
|
def in_set(c):
|
|
z = 0
|
|
for i in range(32):
|
|
z = z * z + c
|
|
if abs(z) > 100:
|
|
return i
|
|
return 0
|
|
|
|
# cache width and height of LCD
|
|
w = lcd.w
|
|
h = lcd.h
|
|
|
|
# create the buffer for each line and set SPI parameters
|
|
line = bytearray(w * 2)
|
|
lcd.set_spi_win(0, 0, w, h)
|
|
spi = lcd.fast_spi()
|
|
|
|
# draw the Mandelbrot set line-by-line
|
|
for v in range(h):
|
|
for u in range(w):
|
|
c = in_set((v / ((h - 1) / 3.2) - 2.3) + (u / ((w - 1) / 2.4) - 1.2) * 1j)
|
|
if c < 16:
|
|
rgb = c << 12 | c << 6
|
|
else:
|
|
rgb = 0xf800 | c << 6
|
|
line[2 * u] = rgb
|
|
line[2 * u + 1] = rgb >> 8
|
|
spi.write(line)
|
|
|
|
def test_all(lcd):
|
|
lcd = get_lcd(lcd)
|
|
test_features(lcd)
|
|
test_mandel(lcd)
|
|
|
|
print('To run all tests: test_all(<lcd>)')
|
|
print('Individual tests are: test_features, test_mandel')
|
|
print('<lcd> argument should be a connection, eg "X", or an LCD160CR object')
|