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Added support for I2S/TDM “dummy samples” via XUA_I2S_DUMMY_SAMPS

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This commit is contained in:
Ross Owen
2023-06-12 16:22:35 +01:00
parent 355df6d6b8
commit c92a640439
3 changed files with 46 additions and 1 deletions
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3
tests/test_i2s_loopback/simulation.xc
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@@ -1,6 +1,7 @@
// Copyright 2016-2023 XMOS LIMITED.
// This Software is subject to the terms of the XMOS Public Licence: Version 1.
#ifdef SIMULATION
#include "xua.h"
#include <platform.h>
#include <print.h>
@@ -45,7 +46,7 @@ void slave_mode_clk_setup(const unsigned samFreq, const unsigned chans_per_frame
const unsigned mclk_freq = 24576000;
const unsigned mclk_bclk_ratio = mclk_freq / (chans_per_frame * samFreq * data_bits);
const unsigned bclk_lrclk_ratio = (chans_per_frame * data_bits); // 48.828Hz LRCLK
const unsigned bclk_lrclk_ratio = (chans_per_frame * data_bits + (data_bits * XUA_I2S_DUMMY_SAMPS)); // 48.828Hz LRCLK
//bclk
configure_clock_src_divide(clk_audio_bclk_gen, p_mclk_gen, mclk_bclk_ratio/2);