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fix(ledc): fix ledc_get_freq calculation err due to overflow

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Closes https://github.com/espressif/esp-idf/pull/14882
This commit is contained in:
Song Ruo Jing
2024-12-05 11:51:50 +08:00
parent 0fae01c7b0
commit 31d7a2056c
3 changed files with 5 additions and 5 deletions
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components/esp_driver_ledc/src/ledc.c
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@@ -1116,7 +1116,7 @@ uint32_t ledc_get_freq(ledc_mode_t speed_mode, ledc_timer_t timer_num)
ledc_hal_get_clock_divider(&(p_ledc_obj[speed_mode]->ledc_hal), timer_num, &clock_divider);
ledc_hal_get_duty_resolution(&(p_ledc_obj[speed_mode]->ledc_hal), timer_num, &duty_resolution);
ledc_hal_get_clk_cfg(&(p_ledc_obj[speed_mode]->ledc_hal), timer_num, &clk_cfg);
uint32_t precision = (0x1 << duty_resolution);
uint64_t precision = (0x1 << duty_resolution);
uint32_t src_clk_freq = 0;
esp_clk_tree_src_get_freq_hz((soc_module_clk_t)clk_cfg, LEDC_CLK_SRC_FREQ_PRECISION, &src_clk_freq);
portEXIT_CRITICAL(&ledc_spinlock);