Merge branch 'bugfix/i2s_apll_clock_fix' into 'master'

driver/i2s: fix apll_clock_rate for different sample rates See merge request idf/esp-idf!5159
2019-06-28 03:49:11 +08:00
parent d7d91225d3 070b86eee5
commit 13d9c483b3
3 changed files with 84 additions and 2 deletions
@@ -501,6 +501,16 @@ esp_err_t i2s_zero_dma_buffer(i2s_port_t i2s_num);
 */
 esp_err_t i2s_set_clk(i2s_port_t i2s_num, uint32_t rate, i2s_bits_per_sample_t bits, i2s_channel_t ch);

+/**
+ * @brief get clock set on particular port number.
+ *
+ * @param i2s_num  I2S_NUM_0, I2S_NUM_1
+ *
+ * @return
+ *     - actual clock set by i2s driver
+ */
+float i2s_get_clk(i2s_port_t i2s_num);
+
 /**
 * @brief Set built-in ADC mode for I2S DMA, this function will initialize ADC pad,
 *        and set ADC parameters.