kopia lustrzana https://github.com/espressif/esp-idf
i2s: fix a bug when calculating i2s apll parameters
Closes https://github.com/espressif/esp-idf/issues/2634 Closes https://github.com/espressif/esp-idf/issues/3380 Fixes https://github.com/espressif/esp-idf/issues/3407pull/3717/head
rodzic
53fd406f53
commit
430d9c6fba
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@ -268,6 +268,16 @@ static esp_err_t i2s_apll_calculate_fi2s(int rate, int bits_per_sample, int *sdm
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*odir = _odir;
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}
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}
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min_diff = APLL_MAX_FREQ;
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for (_sdm2 = 4; _sdm2 < 9; _sdm2 ++) {
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max_rate = i2s_apll_get_fi2s(bits_per_sample, 255, 255, _sdm2, *odir);
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min_rate = i2s_apll_get_fi2s(bits_per_sample, 0, 0, _sdm2, *odir);
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avg = (max_rate + min_rate)/2;
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if (abs(avg - rate) < min_diff) {
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min_diff = abs(avg - rate);
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*sdm2 = _sdm2;
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}
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}
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min_diff = APLL_MAX_FREQ;
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for (_sdm1 = 0; _sdm1 < 256; _sdm1 ++) {
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