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b6dbbbe82f
This commit adds I2S protocol support for the rp2 port:
- I2S API is consistent with STM32 and ESP32 ports
- I2S configurations supported:
- master transmit and master receive
- 16-bit and 32-bit sample sizes
- mono and stereo formats
- sampling frequency
- 3 modes of operation:
- blocking
- non-blocking with callback
- uasyncio
- internal ring buffer size can be tuned
- DMA IRQs are managed on an I2S object basis, allowing other
RP2 entities to use DMA IRQs when I2S is not being used
- MicroPython documentation
- tested on Raspberry Pi Pico development board
- build metric changes for this commit: text(+4552), data(0), bss(+8)
Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
21 lines
653 B
C
21 lines
653 B
C
#ifndef MICROPY_INCLUDED_RP2_MODMACHINE_H
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#define MICROPY_INCLUDED_RP2_MODMACHINE_H
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#include "py/obj.h"
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extern const mp_obj_type_t machine_adc_type;
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extern const mp_obj_type_t machine_hw_i2c_type;
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extern const mp_obj_type_t machine_i2s_type;
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extern const mp_obj_type_t machine_pin_type;
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extern const mp_obj_type_t machine_rtc_type;
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extern const mp_obj_type_t machine_spi_type;
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extern const mp_obj_type_t machine_timer_type;
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extern const mp_obj_type_t machine_uart_type;
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extern const mp_obj_type_t machine_wdt_type;
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void machine_pin_init(void);
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void machine_pin_deinit(void);
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void machine_i2s_init0(void);
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#endif // MICROPY_INCLUDED_RP2_MODMACHINE_H
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