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added int16_t i2s_available(); it returns the number of samples than can be (#3988)

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written before blocking
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aguaviva
2017-12-18 01:34:38 +01:00
committed by Develo
parent 26980b39e3
commit 08cdf153d4
2 changed files with 5 additions and 0 deletions
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cores/esp8266/i2s.h
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@ -48,6 +48,7 @@ bool i2s_write_sample_nb(uint32_t sample);//same as above but does not block whe
bool i2s_write_lr(int16_t left, int16_t right);//combines both channels and calls i2s_write_sample with the result
bool i2s_is_full();//returns true if DMA is full and can not take more bytes (overflow)
bool i2s_is_empty();//returns true if DMA is empty (underflow)
int16_t i2s_available();// returns the number of samples than can be written before blocking
#ifdef __cplusplus
}