c6bc9c48c9
tested on metro m7 (green prototype version) with max98357a i2s amplifier and the following test code:
```py
import board
import time
import digitalio
from audiobusio import I2SOut
from audiocore import RawSample
from microcontroller import pin
from ulab import numpy as np
n = np.array(np.sin(np.linspace(0, np.pi*2, 218, endpoint=False)) * 200, dtype=np.int16)
print(n)
r = RawSample(n, sample_rate=8000, channel_count=2)
def main():
with digitalio.DigitalInOut(board.LED) as l:
l.switch_to_output(True)
value = False
while True:
with I2SOut(pin.GPIO_06, pin.GPIO_07, pin.GPIO_04) as i:
time.sleep(.01)
l.value = value = not value
i.play(r, loop=True)
print(i.playing)
time.sleep(.5)
i.stop()
print("STOPPED")
print(i.playing)
time.sleep(.5)
i.play(r, loop=True)
print(i.playing)
print("PLAY AGAIN")
time.sleep(.5)
time.sleep(1)
```
Only stereo, 16-bit, raw samples were tested; the sample rate is actually fixed
at 48kHz in the core right now. There is more to do, but the basics work.
# Conflicts:
# ports/mimxrt10xx/Makefile
# ports/mimxrt10xx/mpconfigport.mk
65 lines
3.0 KiB
C
65 lines
3.0 KiB
C
#include "shared-bindings/board/__init__.h"
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#include "supervisor/board.h"
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STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
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// Analog
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{ MP_OBJ_NEW_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_GPIO_AD_02) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_GPIO_AD_01) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_GPIO_AD_00) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_GPIO_AD_05) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_GPIO_AD_10) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_GPIO_AD_08) },
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// Digital
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_GPIO_09) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO_09) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_GPIO_10) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO_10) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_GPIO_13) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_GPIO_12) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_GPIO_SD_00) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_GPIO_SD_01) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_GPIO_SD_02) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_GPIO_11) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_GPIO_08) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_GPIO_07) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_GPIO_06) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_GPIO_05) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_GPIO_04) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_LED),MP_ROM_PTR(&pin_GPIO_03) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_D13),MP_ROM_PTR(&pin_GPIO_03) },
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// ESP control
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ESP_CS), MP_ROM_PTR(&pin_GPIO_AD_14) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ESP_GPIO0), MP_ROM_PTR(&pin_GPIO_SD_05) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ESP_BUSY), MP_ROM_PTR(&pin_GPIO_AD_11) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ESP_RESET), MP_ROM_PTR(&pin_GPIO_AD_07) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ESP_TX), MP_ROM_PTR(&pin_GPIO_09) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_ESP_RX), MP_ROM_PTR(&pin_GPIO_10) },
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// SPI
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO_AD_06) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO_AD_03) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_GPIO_AD_04) },
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// I2C
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO_01) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO_02) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_NEOPIXEL), MP_ROM_PTR(&pin_GPIO_00) },
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{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
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{ MP_ROM_QSTR(MP_QSTR_STEMMA_I2C), MP_ROM_PTR(&board_i2c_obj) },
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{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
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{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
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{ MP_ROM_QSTR(MP_QSTR_I2S_WSEL), MP_ROM_PTR(&pin_GPIO_06) }, // D10
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{ MP_ROM_QSTR(MP_QSTR_I2S_BCLK), MP_ROM_PTR(&pin_GPIO_07) }, // D9
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{ MP_ROM_QSTR(MP_QSTR_I2S_DOUT), MP_ROM_PTR(&pin_GPIO_04) }, // D12
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};
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MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
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