Fix trailing whitespace
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@ -162,19 +162,19 @@ int i2s_init() {
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periph_module_enable(PERIPH_I2S0_MODULE);
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/**
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* Each i2s transfer will take
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* Each i2s transfer will take
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* fpll = PLL_D2_CLK -- clka_en = 0
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*
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*
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* fi2s = fpll / N + b/a -- N = clkm_div_num
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* fi2s = 160MHz / 2
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* fi2s = 80MHz
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*
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*
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* fbclk = fi2s / M -- M = tx_bck_div_num
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* fbclk = 80MHz / 2
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* fbclk = 40MHz
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*
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*
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* fwclk = fbclk / 32
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*
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*
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* for fwclk = 250kHz (4uS pulse time)
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* N = 10
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* M = 20
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