Created
September 15, 2014 07:30
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Micro Python cs43l22 driver
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| import pyb | |
| from pyb import I2C | |
| from pyb import Pin | |
| DEVICE_ADDR = 0x4a | |
| BEEPTONE_ADDR = 0x1e | |
| class CS43L22: | |
| def __init__(self): | |
| self.reset = Pin(Pin.board.PD4, Pin.OUT_PP) | |
| self.reset.low() | |
| pyb.delay(100) | |
| self.reset.high() | |
| pyb.delay(1000) | |
| self.i2c = I2C(1, I2C.MASTER, baudrate=100000) | |
| def init(self): | |
| print([hex(i) for i in self.i2c.scan()]) | |
| if self.i2c.is_ready(DEVICE_ADDR): | |
| print("ready") | |
| self.i2c.mem_write(0x99, DEVICE_ADDR, 0x00) | |
| self.i2c.mem_write(0x80, DEVICE_ADDR, 0x47) | |
| self.i2c.mem_write(0x80, DEVICE_ADDR, 0x32) | |
| self.i2c.mem_write(0x00, DEVICE_ADDR, 0x32) | |
| self.i2c.mem_write(0x00, DEVICE_ADDR, 0x00) | |
| self.i2c.mem_write(0x9e, DEVICE_ADDR, 0x02) | |
| pyb.delay(1000) | |
| # Volume | |
| self.i2c.mem_write(0x18, DEVICE_ADDR, 0x20) | |
| self.i2c.mem_write(0x18, DEVICE_ADDR, 0x21) | |
| self.i2c.mem_write(0x18, DEVICE_ADDR, 0x1a) | |
| self.i2c.mem_write(0x18, DEVICE_ADDR, 0x1b) | |
| self.i2c.mem_write(0x0f, DEVICE_ADDR, 0x1c) | |
| self.i2c.mem_write(0x06, DEVICE_ADDR, 0x1d) | |
| self.i2c.mem_write(0xc0, DEVICE_ADDR, BEEPTONE_ADDR) | |
| audio = CS43L22() | |
| pyb.delay(1000) | |
| audio.init() |
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