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Use 192 as mclk_multiple for 24-bit I2S

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Josh Weberruss 2023-04-07 17:26:39 +10:00
parent e5d1c603b0
commit 2965bac64c
1 changed files with 3 additions and 1 deletions
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4
esp-hal-common/src/i2s.rs
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@ -1978,7 +1978,9 @@ mod private {
// //
// main difference is we are using fixed-point arithmetic here // main difference is we are using fixed-point arithmetic here
let mclk_multiple = 256; // If data_bits is a power of two, use 256 as the mclk_multiple
// If data_bits is 24, use 192 (24 * 8) as the mclk_multiple
let mclk_multiple = if data_bits == 24 { 192 } else { 256 };
let sclk = 160_000_000; // for now it's fixed PLL_160M_CLK let sclk = 160_000_000; // for now it's fixed PLL_160M_CLK
let rate_hz: HertzU32 = sample_rate.into(); let rate_hz: HertzU32 = sample_rate.into();