26 lines
759 B
C
26 lines
759 B
C
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#include <stdint.h>
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#include <stdbool.h>
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#include "process_audio.h"
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__I2S volatile uint32_t i2s_control __at(0);
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__I2S volatile uint32_t i2s_mode __at(4);
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__I2S volatile uint32_t i2s_status __at(8);
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__I2S volatile uint32_t i2s_data __at(12);
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void control_in(void)
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{
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i2s_control = 0x00011004; // watermark = 16 (half), prescaler = 4
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i2s_mode = 0x00001010; // no interrupts, right justified, receive = true, transmit = true, stereo in and out, width = 16
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for (;;)
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{
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while ((i2s_status & 0x80) == 0);
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FILTER((sample_device_t) i2s_data, true);
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FILTER((sample_device_t) i2s_data, false);
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i2s_mode = 0x00001810; // no interrupts, receive = true, transmit = true, stereo in and out, width = 16
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}
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}
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