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feat(dma): refactor dma calloc function

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gaoxu
2024-03-29 11:36:27 +08:00
committed by Gao Xu
parent 78f96c4466
commit 40f38bea6f
30 changed files with 204 additions and 363 deletions
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2
components/hal/hal_utils.c
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@@ -26,7 +26,7 @@ uint32_t hal_utils_calc_clk_div_frac_fast(const hal_utils_clk_info_t *clk_info,
// Carry bit if the decimal is greater than 1.0 - 1.0 / ((max_fract - 1) * 2)
if (freq_error < clk_info->exp_freq_hz - clk_info->exp_freq_hz / (clk_info->max_fract - 1) * 2) {
// Calculate the Greatest Common Divisor, time complexity O(log n)
uint32_t gcd = _gcd(clk_info->exp_freq_hz, freq_error);
uint32_t gcd = hal_utils_gcd(clk_info->exp_freq_hz, freq_error);
// divide by the Greatest Common Divisor to get the accurate fraction before normalization
div_denom = clk_info->exp_freq_hz / gcd;
div_numer = freq_error / gcd;