class SPI:
def __init__(self, dev):
self.d = SPIDriver(dev)
self.d.unsel()
self.d.seta(1)
self.d.setb(1)
print('reset')
self.d.setb(0)
time.sleep(.1)
self.d.setb(1)
def transfer(self, wr, rd = 0):
self.d.sel()
self.d.write(wr)
r = self.d.read(rd)
self.d.unsel()
return r
class GameduinoSPIDriver(gameduino.Gameduino):
def __init__(self):
self.d = SPIDriver(
"/dev/serial/by-id/usb-FTDI_FT230X_Basic_UART_DO01HE8Q-if00-port0")
self.d.unsel()
self.d.seta(1)
self.d.setb(1)
if 0:
print('reset')
self.d.setb(0)
time.sleep(.1)
self.d.setb(1)
def transfer(self, wr, rd=0):
self.d.sel()
self.d.write(wr)
r = self.d.read(rd)
self.d.unsel()
return r
#!/usr/bin/env python3
import sys
import colorsys
from spidriver import SPIDriver
if __name__ == '__main__':
s = SPIDriver(sys.argv[1])
L = 300
blanking = [0] * ((L + 31) // 32)
s.write(blanking + [0x80, 0x80, 0x80] * L + blanking)
rainbow = sum([colorsys.hsv_to_rgb(float(i) / L, 1, 1) for i in range(L)],
())
rainbow = [int(128 + 127 * v) for v in rainbow]
while True:
s.write(rainbow + blanking)
rainbow = rainbow[3:] + rainbow[:3]
class GD(gameduino2.base.GD2):
def __init__(self, dev):
self.spi = SPIDriver(dev)
self.spi.setb(1)
if False:
self.spi.setb(0)
time.sleep(1)
self.spi.setb(1)
time.sleep(1)
self.coldstart()
t0 = time.time()
while self._rd32(gd3.REG_ID) != 0x7c:
assert (time.time() - t0) < 1.0, "No response - is GD attached?"
if 0:
time.sleep(1)
print("ID %8x" % self._rd32(gd3.REG_ID))
print("CMD_READ %8x" % self._rd32(gd3.REG_CMD_READ))
print("CMD_WRITE %8x" % self._rd32(gd3.REG_CMD_WRITE))
print("CMD_SPACE %8x" % self._rd32(gd3.REG_CMDB_SPACE))
while self._rd32(gd3.REG_ID) != 0x7c:
time.sleep(.1)
self.getspace()
self.stream()
def coldstart(self):
self.host_cmd(0x00) # Wake up
self.host_cmd(0x48) # int clock
self.host_cmd(0x68) # Core reset
time.sleep(.25)
def host_cmd(self, a, b = 0, c = 0):
self.spi.sel()
self.spi.write(bytes([a, b, c]))
self.spi.unsel()
def start(self, a):
self.spi.sel()
self.spi.write(bytes([
0xff & (a >> 16),
0xff & (a >> 8),
0xff & a]))
def _rd(self, a, n):
self.start(a)
r = self.spi.read(1 + n)
self.spi.unsel()
return r[1:]
def _rd32(self, a):
return struct.unpack("<I", self._rd(a, 4))[0]
def _wr32(self, a, v):
self.start(0x800000 | a)
self.spi.write(struct.pack("I", v))
self.spi.unsel()
def _wr(self, a, v):
self.start(0x800000 | a)
self.spi.write(v)
self.spi.unsel()
def getspace(self):
self.space = self._rd32(gd3.REG_CMDB_SPACE)
if self.space & 1:
raise CoprocessorException
def stream(self):
self.start(0x800000 | gd3.REG_CMDB_WRITE)
def unstream(self):
self.spi.unsel()
def reserve(self, n):
if self.space < n:
self.unstream()
while self.space < n:
self.getspace()
self.stream()
def c4(self, v):
'''
Write 32-bit value v to the command FIFO
'''
self.reserve(4)
self.spi.write(struct.pack("I", v))
self.space -= 4
def c(self, ss):
'''
Write s to the command FIFO
'''
for i in range(0, len(ss), 64):
s = ss[i:i + 64]
self.reserve(len(s))
self.spi.write(s)
self.space -= len(s)
def flush(self):
pass
def finish(self):
self.reserve(4092)
def is_idle(self):
self.unstream()
self.getspace()
self.stream()
return self.space == 4092
def rd32(self, a):
self.unstream()
r = self._rd32(a)
self.stream()
return r
def rd(self, a, n):
self.unstream()
r = self._rd(a, n)
self.stream()
return r
def wr(self, a, v):
self.unstream()
r = self._wr(a, v)
self.stream()
def result(self, n=1):
# Return the result field of the preceding command
self.finish()
self.unstream()
wp = self._rd32(gd3.REG_CMD_READ)
r = self._rd32(gd3.RAM_CMD + (4095 & (wp - 4 * n)))
self.stream()
return r
def setup_480x272(self):
b = 6
setup = [
(gd3.REG_OUTBITS, b * 73),
(gd3.REG_DITHER, 1),
(gd3.REG_GPIO, 0x83),
(gd3.REG_PCLK_POL, 1),
(gd3.REG_ROTATE, 0),
(gd3.REG_SWIZZLE, 3),
]
self.Clear()
self.swap()
for (a, v) in setup:
self.cmd_regwrite(a, v)
self.cmd_regwrite(gd3.REG_PCLK, 5) # Enable display
self.finish()
self.w = 480
self.h = 272
def setup_800x480(self):
b = 6
setup = [
(gd3.REG_OUTBITS, b * 73),
(gd3.REG_DITHER, 1),
(gd3.REG_GPIO, 0x83),
(gd3.REG_ROTATE, 0),
(gd3.REG_SWIZZLE, 3),
(gd3.REG_HCYCLE, 928),
(gd3.REG_HOFFSET, 88),
(gd3.REG_HSIZE, 800),
(gd3.REG_HSYNC0, 0),
(gd3.REG_HSYNC1, 48),
(gd3.REG_VCYCLE, 525),
(gd3.REG_VOFFSET, 32),
(gd3.REG_VSIZE, 480),
(gd3.REG_VSYNC0, 0),
(gd3.REG_VSYNC1, 3),
(gd3.REG_CSPREAD, 0),
(gd3.REG_PCLK_POL, 0),
]
for (a, v) in setup:
self.cmd_regwrite(a, v)
self.Clear()
self.swap()
self.finish()
self.cmd_regwrite(gd3.REG_PCLK, 2) # Enable display
self.w = 800
self.h = 480
def calibrate(self):
self.Clear()
self.cmd_text(240, 135, 29, gd3.OPT_CENTER, "Tap the dot")
self.cmd_calibrate(0)
self.cmd_dlstart()
def screenshot(self, dest):
REG_SCREENSHOT_EN = 0x302010 # Set to enable screenshot mode
REG_SCREENSHOT_Y = 0x302014 # Y line register
REG_SCREENSHOT_START = 0x302018 # Screenshot start trigger
REG_SCREENSHOT_BUSY = 0x3020e8 # Screenshot ready flags
REG_SCREENSHOT_READ = 0x302174 # Set to enable readout
RAM_SCREENSHOT = 0x3c2000 # Screenshot readout buffer
self.finish()
self.unstream()
self._wr32(REG_SCREENSHOT_EN, 1)
self._wr32(0x0030201c, 32)
self._wr32(REG_SCREENSHOT_READ, 1)
for ly in range(self.h):
self._wr32(REG_SCREENSHOT_Y, ly)
self._wr32(REG_SCREENSHOT_START, 1)
time.sleep(.002)
# while (self.raw_read(REG_SCREENSHOT_BUSY) | self.raw_read(REG_SCREENSHOT_BUSY + 4)): pass
while self._rd(REG_SCREENSHOT_BUSY, 8) != bytes(8):
pass
self._wr32(REG_SCREENSHOT_READ, 1)
bgra = self._rd(RAM_SCREENSHOT, 4 * self.w)
(b,g,r,a) = [bgra[i::4] for i in range(4)]
line = bytes(sum(zip(r,g,b), ()))
dest(line)
self._wr32(REG_SCREENSHOT_READ, 0)
self._wr32(REG_SCREENSHOT_EN, 0)
self.stream()
def screenshot_im(self):
self.ssbytes = b""
def appender(s):
self.ssbytes += s
self.screenshot(appender)
from PIL import Image
return Image.frombytes("RGB", (self.w, self.h), self.ssbytes)
def rnd(n):
return random.randrange(n)
if __name__ == '__main__':
s = SPIDriver(sys.argv[1])
t1 = time.time() + float(sys.argv[2])
i = 0
random.seed(7)
while time.time() < t1:
expected = s.ccitt_crc
s.unsel()
l = 1 + rnd(100)
db = [rnd(256) for j in range(l)]
s.write(db)
expected = crc16xmodem(db, expected)
s.unsel()
db = [rnd(256) for j in range(64)]
r = list(array.array('B', s.writeread(db)))
expected = crc16xmodem(db, expected)
expected = crc16xmodem(r, expected)
s.getstatus()
print("expected=%04x actual=%04x" % (expected, s.ccitt_crc))
assert expected == s.ccitt_crc, "pass %d with %d bytes %s, expected=%04x actual=%04x" % (
i, len(db), list(db), expected, s.ccitt_crc)
i += 1
for i in range(20):
s.seta(0)
class ButtonWindow(Gtk.Window):
def __init__(self):
Gtk.Window.__init__(self, title="SPIDriver")
self.set_border_width(10)
self.sd = SPIDriver()
# help(self.sd)
hbox = Gtk.Box(spacing=6)
def pair(a, b):
r = Gtk.HBox(spacing=6)
r.pack_start(a, False, True, 0)
r.pack_end(b, False, True, 0)
return r
def label(s):
r = Gtk.Label()
r.set_text(s)
return r
def vbox(items):
r = Gtk.VBox(spacing=6)
[r.pack_start(i, True, True, 0) for i in items]
return r
def hbox(items):
r = Gtk.HBox(spacing=6)
[r.pack_start(i, False, True, 0) for i in items]
return r
def checkbutton(name, state, click):
r = Gtk.CheckButton(name)
r.set_active(state)
r.connect("clicked", click)
return r
def button(name, click):
r = Gtk.Button(name)
r.connect("clicked", click)
return r
self.label_voltage = Gtk.Label()
self.label_current = Gtk.Label()
self.label_temp = Gtk.Label()
self.tx = Gtk.Entry()
self.tx.set_max_length(2)
self.tx.set_width_chars(2)
self.rx = Gtk.Entry()
self.rx.set_width_chars(20)
self.add(vbox([
pair(label("Voltage"), self.label_voltage),
pair(label("Current"), self.label_current),
pair(label("Temp"), self.label_temp),
hbox([
checkbutton("CS", 1 - self.sd.cs, self.click_cs),
checkbutton("A", self.sd.a, self.click_a),
checkbutton("B", self.sd.b, self.click_b),
]),
pair(
self.tx,
button("Send", self.send)
),
pair(
self.rx,
button("Recv", self.click_a)
),
]))
self.refresh()
"""
self.add(hbox)
button = Gtk.Button.new_with_label("Click Me")
button.connect("clicked", self.on_click_me_clicked)
hbox.pack_start(button, True, True, 0)
button = Gtk.Button.new_with_mnemonic("_Open")
button.connect("clicked", self.on_open_clicked)
hbox.pack_start(button, True, True, 0)
button = Gtk.Button.new_with_mnemonic("_Close")
button.connect("clicked", self.on_close_clicked)
hbox.pack_start(button, True, True, 0)
hbox.pack_start(self.hbox([self.checkbutton("A"), self.checkbutton("b")]), True, True, 0)
label = Gtk.Label()
label.set_text("This is a left-justified label.\nWith multiple lines.")
label.set_justify(Gtk.Justification.LEFT)
hbox.pack_start(label, True, True, 0)
self.label_voltage = label
"""
GLib.timeout_add(1000, self.refresh)
def refresh(self):
self.sd.getstatus()
self.label_voltage.set_text("%.2f V" % self.sd.voltage)
self.label_current.set_text("%d mA" % self.sd.current)
self.label_temp.set_text("%.1f C" % self.sd.temp)
return True
def click_cs(self, button):
print('CS state', button.get_state(), Gtk.StateType.ACTIVE)
[self.sd.unsel, self.sd.sel][ison(button)]()
def click_a(self, button):
self.sd.seta(int(button.get_state()))
def click_b(self, button):
self.sd.setb(int(button.get_state()))
def on_click_me_clicked(self, button):
print("\"Click me\" button was clicked")
def send(self, _):
b = self.tx.get_buffer()
print(b.get_text())
self.sd.write(struct.pack("B", int(b.get_text(), 16)))
b.delete_text(0, -1)
def on_open_clicked(self, button):
print("\"Open\" button was clicked")
def on_close_clicked(self, button):
print("Closing application")
Gtk.main_quit()
return [rnd(256) for i in range(n)]
if __name__ == '__main__':
if len(sys.argv) > 1:
s = SPIDriver(sys.argv[1])
else:
s = SPIDriver()
# print(s)
# t1 = time.time() + float(sys.argv[2])
while True: # time.time() < t1:
for i in range(50):
random.choice([
lambda: s.seta(rnd(2)),
lambda: s.setb(rnd(2)),
lambda: s.sel(),
lambda: s.unsel(),
lambda: s.writeread(pattern(1 + rnd(1))),
# lambda: s.read(1 + rnd(12)),
# lambda: s.getstatus()
])()
os.system("outlet.py 8 on ; outlet.py 8 off")
time.sleep(3)
print(hex(s.debug))
while 0:
s.sel()
s.write(b'ABCDEF')
s.unsel()
time.sleep(.050)
try:
optlist, args = getopt.getopt(sys.argv[1:], "h:")
except getopt.GetoptError as reason:
print()
print('usage: st7735 [ -h device ] image...')
print()
print()
sys.exit(1)
optdict = dict(optlist)
s = SPIDriver(optdict.get('-h', "/dev/ttyUSB0"))
s.unsel()
while True:
s.sel() # start command
s.write(b'\x9f') # command 9F is READ JEDEC ID
ids = s.read(3)
(id1, id2, id3) = struct.unpack("BBB", ids)
print ("JEDEC ID: %02x %02x %02x" % (id1, id2, id3))
s.unsel() # end command
time.sleep(.02)
if id1 not in (0x00, 0xff):
break
for c in (0x66, 0x99):
s.sel() # start command
s.write(bytes([c]))
s.unsel()
time.sleep(.2)
s.sel() # start command
from spidriver import SPIDriver
s = SPIDriver("/dev/ttyUSB0") # change for your port
s.sel() # start command
s.write([0x9f]) # command 9F is READ JEDEC ID
print(list(s.read(3))) # read next 3 bytes
s.unsel() # end command