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Free memory we allocated and actually stop i2s. #3191

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Merged
merged 2 commits into from
May 8, 2017
Merged

Free memory we allocated and actually stop i2s. #3191

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368bbec
Free memory we allocated and actually stop i2s.
pablo-mendoza May 2, 2017
c8cba5f
Merge branch 'master' into i2sEndFixes
pablo-mendoza May 6, 2017
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14 changes: 13 additions & 1 deletion cores/esp8266/core_esp8266_i2s.c
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,10 @@ void ICACHE_FLASH_ATTR i2s_slc_end(){
SLCIE = 0;
SLCTXL &= ~(SLCTXLAM << SLCTXLA); // clear TX descriptor address
SLCRXL &= ~(SLCRXLAM << SLCRXLA); // clear RX descriptor address

for (int x = 0; x<SLC_BUF_CNT; x++) {
free(i2s_slc_buf_pntr[x]);
}
}

//This routine pushes a single, 32-bit sample to the I2S buffers. Call this at (on average)
Expand Down Expand Up @@ -238,8 +242,16 @@ void ICACHE_FLASH_ATTR i2s_begin(){
}

void ICACHE_FLASH_ATTR i2s_end(){
i2s_slc_end();
I2SC &= ~I2STXS;

//Reset I2S
I2SC &= ~(I2SRST);
I2SC |= I2SRST;
I2SC &= ~(I2SRST);

pinMode(2, INPUT);
pinMode(3, INPUT);
pinMode(15, INPUT);

i2s_slc_end();
}