kopia lustrzana https://github.com/peterhinch/micropython-nano-gui
Optimized constants
Enrico Rossini
rodzic
5e50eb0880
commit
6b37dbf1dc
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@ -4,35 +4,35 @@ from time import sleep_ms
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import framebuf
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import framebuf
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# LCD Commands definition
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# LCD Commands definition
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CMD_DISPLAY_ON = const(0xAF)
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_CMD_DISPLAY_ON = const(0xAF)
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CMD_DISPLAY_OFF = const(0xAE)
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_CMD_DISPLAY_OFF = const(0xAE)
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CMD_SET_START_LINE = const(0x40)
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_CMD_SET_START_LINE = const(0x40)
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CMD_SET_PAGE = const(0xB0)
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_CMD_SET_PAGE = const(0xB0)
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CMD_COLUMN_UPPER = const(0x10)
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_CMD_COLUMN_UPPER = const(0x10)
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CMD_COLUMN_LOWER = const(0x00)
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_CMD_COLUMN_LOWER = const(0x00)
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CMD_SET_ADC_NORMAL = const(0xA0)
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_CMD_SET_ADC_NORMAL = const(0xA0)
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CMD_SET_ADC_REVERSE = const(0xA1)
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_CMD_SET_ADC_REVERSE = const(0xA1)
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CMD_SET_COL_NORMAL = const(0xC0)
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_CMD_SET_COL_NORMAL = const(0xC0)
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CMD_SET_COL_REVERSE = const(0xC8)
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_CMD_SET_COL_REVERSE = const(0xC8)
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CMD_SET_DISPLAY_NORMAL = const(0xA6)
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_CMD_SET_DISPLAY_NORMAL = const(0xA6)
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CMD_SET_DISPLAY_REVERSE = const(0xA7)
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_CMD_SET_DISPLAY_REVERSE = const(0xA7)
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CMD_SET_ALLPX_ON = const(0xA5)
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_CMD_SET_ALLPX_ON = const(0xA5)
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CMD_SET_ALLPX_NORMAL = const(0xA4)
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_CMD_SET_ALLPX_NORMAL = const(0xA4)
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CMD_SET_BIAS_9 = const(0xA2)
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_CMD_SET_BIAS_9 = const(0xA2)
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CMD_SET_BIAS_7 = const(0xA3)
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_CMD_SET_BIAS_7 = const(0xA3)
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CMD_DISPLAY_RESET = const(0xE2)
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_CMD_DISPLAY_RESET = const(0xE2)
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CMD_NOP = const(0xE3)
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_CMD_NOP = const(0xE3)
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CMD_TEST = const(0xF0) # Exit this mode with CMD_NOP
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_CMD_TEST = const(0xF0) # Exit this mode with _CMD_NOP
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CMD_SET_POWER = const(0x28)
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_CMD_SET_POWER = const(0x28)
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CMD_SET_RESISTOR_RATIO = const(0x20)
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_CMD_SET_RESISTOR_RATIO = const(0x20)
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CMD_SET_VOLUME = const(0x81)
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_CMD_SET_VOLUME = const(0x81)
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# Display parameters
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# Display parameters
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DISPLAY_W = const(128)
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_DISPLAY_W = const(128)
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DISPLAY_H = const(64)
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_DISPLAY_H = const(64)
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DISPLAY_CONTRAST = const(0x1B)
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_DISPLAY_CONTRAST = const(0x1B)
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DISPLAY_RESISTOR_RATIO = const(5)
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_DISPLAY_RESISTOR_RATIO = const(5)
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DISPLAY_POWER_MODE = 7
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_DISPLAY_POWER_MODE = 7
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class ST7567(framebuf.FrameBuffer):
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class ST7567(framebuf.FrameBuffer):
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@ -52,47 +52,46 @@ class ST7567(framebuf.FrameBuffer):
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self.buffer = bytearray(self.pages * self.width)
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self.buffer = bytearray(self.pages * self.width)
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mode = framebuf.MONO_VLSB
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mode = framebuf.MONO_VLSB
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self.palette = BoolPalette(mode) # Ensure color compatibility
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self.palette = BoolPalette(mode) # Ensure color compatibility
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super().__init__( self.buffer, self.width, self.height, framebuf.MONO_VLSB)
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super().__init__(self.buffer, self.width, self.height, framebuf.MONO_VLSB)
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self.display_init()
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self.display_init()
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def display_init(self):
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def display_init(self):
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self.write_cmd( CMD_DISPLAY_RESET )
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self.write_cmd(_CMD_DISPLAY_RESET)
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sleep_ms(1)
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sleep_ms(1)
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for cmd in (
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for cmd in (
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CMD_DISPLAY_OFF, # Display off
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_CMD_DISPLAY_OFF, # Display off
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CMD_SET_BIAS_9, # Display drive voltage 1/9 bias
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_CMD_SET_BIAS_9, # Display drive voltage 1/9 bias
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CMD_SET_ADC_NORMAL, # Normal SEG
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_CMD_SET_ADC_NORMAL, # Normal SEG
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CMD_SET_COL_REVERSE, # Commmon mode reverse direction
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_CMD_SET_COL_REVERSE, # Commmon mode reverse direction
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CMD_SET_RESISTOR_RATIO + DISPLAY_RESISTOR_RATIO, # V5 R ratio
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_CMD_SET_RESISTOR_RATIO + _DISPLAY_RESISTOR_RATIO, # V5 R ratio
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CMD_SET_VOLUME, # Contrast
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_CMD_SET_VOLUME, # Contrast
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DISPLAY_CONTRAST, # Contrast value
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_DISPLAY_CONTRAST, # Contrast value
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CMD_SET_POWER + DISPLAY_POWER_MODE):
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_CMD_SET_POWER + _DISPLAY_POWER_MODE):
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self.write_cmd(cmd)
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self.write_cmd(cmd)
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self.show()
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self.show()
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self.write_cmd(CMD_DISPLAY_ON)
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self.write_cmd(_CMD_DISPLAY_ON)
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def set_contrast(self, value):
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def set_contrast(self, value):
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if (0x1 <= value <= 0x3f):
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if (0x1 <= value <= 0x3f):
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for cmd in ( CMD_SET_VOLUME, value ):
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for cmd in (_CMD_SET_VOLUME, value):
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self.write_cmd(cmd)
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self.write_cmd(cmd)
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def show(self):
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def show(self):
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for i in range(8):
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for i in range(8):
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for cmd in (
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for cmd in (
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CMD_SET_START_LINE,
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_CMD_SET_START_LINE,
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CMD_SET_PAGE + i,
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_CMD_SET_PAGE + i,
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CMD_COLUMN_UPPER,
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_CMD_COLUMN_UPPER,
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CMD_COLUMN_LOWER):
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_CMD_COLUMN_LOWER):
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self.write_cmd(cmd)
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self.write_cmd(cmd)
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self.write_data( self.buffer[i*128:(i+1)*128] )
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self.write_data(self.buffer[i * 128:(i + 1) * 128])
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def write_cmd(self, cmd):
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def write_cmd(self, cmd):
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self.temp[0] = 0x80 # Co=1, D/C#=0
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self.temp[0] = 0x80 # Co=1, D/C#=0
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self.temp[1] = cmd
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self.temp[1] = cmd
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self.i2c.writeto( self.addr, self.temp)
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self.i2c.writeto(self.addr, self.temp)
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def write_data(self, buf):
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def write_data(self, buf):
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self.write_list[1] = buf
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self.write_list[1] = buf
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self.i2c.writevto( self.addr, self.write_list )
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self.i2c.writevto(self.addr, self.write_list)
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