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feat(mcpwm): support RC_FAST group clock source

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Expose RC_FAST as a shared MCPWM group clock source for timers,
capture timers, and carriers on ESP32-C5, ESP32-C6, ESP32-H2,
and ESP32-P4. Fix the ESP32-S31 MCPWM clock selector mapping.

Add a hardware runtime test that verifies MCPWM Timer counting
resolution for every supported clock source.
This commit is contained in:
Steven Yang
2026-07-29 20:20:47 +08:00
parent 102122904a
commit 8a982614a2
9 changed files with 100 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/soc/esp32h2/include/soc/clk_tree_defs.h
+6 -3
View File
@@ -275,13 +275,14 @@ typedef enum {
/**
* @brief Array initializer for all supported clock sources of MCPWM Timer
*/
#define SOC_MCPWM_TIMER_CLKS {SOC_MOD_CLK_PLL_F96M, SOC_MOD_CLK_XTAL}
#define SOC_MCPWM_TIMER_CLKS {SOC_MOD_CLK_PLL_F96M, SOC_MOD_CLK_RC_FAST, SOC_MOD_CLK_XTAL}
/**
* @brief Type of MCPWM timer clock source
*/
typedef enum {
MCPWM_TIMER_CLK_SRC_PLL96M = SOC_MOD_CLK_PLL_F96M, /*!< Select PLL_F96M as the source clock */
MCPWM_TIMER_CLK_SRC_RC_FAST = SOC_MOD_CLK_RC_FAST, /*!< Select RC_FAST as the source clock */
MCPWM_TIMER_CLK_SRC_XTAL = SOC_MOD_CLK_XTAL, /*!< Select XTAL as the source clock */
MCPWM_TIMER_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F96M, /*!< Select PLL_F96M as the default clock choice */
} soc_periph_mcpwm_timer_clk_src_t;
@@ -289,13 +290,14 @@ typedef enum {
/**
* @brief Array initializer for all supported clock sources of MCPWM Capture Timer
*/
#define SOC_MCPWM_CAPTURE_CLKS {SOC_MOD_CLK_PLL_F96M, SOC_MOD_CLK_XTAL}
#define SOC_MCPWM_CAPTURE_CLKS {SOC_MOD_CLK_PLL_F96M, SOC_MOD_CLK_RC_FAST, SOC_MOD_CLK_XTAL}
/**
* @brief Type of MCPWM capture clock source
*/
typedef enum {
MCPWM_CAPTURE_CLK_SRC_PLL96M = SOC_MOD_CLK_PLL_F96M, /*!< Select PLL_F96M as the source clock */
MCPWM_CAPTURE_CLK_SRC_RC_FAST = SOC_MOD_CLK_RC_FAST, /*!< Select RC_FAST as the source clock */
MCPWM_CAPTURE_CLK_SRC_XTAL = SOC_MOD_CLK_XTAL, /*!< Select XTAL as the source clock */
MCPWM_CAPTURE_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F96M, /*!< Select PLL_F96M as the default clock choice */
} soc_periph_mcpwm_capture_clk_src_t;
@@ -303,13 +305,14 @@ typedef enum {
/**
* @brief Array initializer for all supported clock sources of MCPWM Carrier
*/
#define SOC_MCPWM_CARRIER_CLKS {SOC_MOD_CLK_PLL_F96M, SOC_MOD_CLK_XTAL}
#define SOC_MCPWM_CARRIER_CLKS {SOC_MOD_CLK_PLL_F96M, SOC_MOD_CLK_RC_FAST, SOC_MOD_CLK_XTAL}
/**
* @brief Type of MCPWM carrier clock source
*/
typedef enum {
MCPWM_CARRIER_CLK_SRC_PLL96M = SOC_MOD_CLK_PLL_F96M, /*!< Select PLL_F96M as the source clock */
MCPWM_CARRIER_CLK_SRC_RC_FAST = SOC_MOD_CLK_RC_FAST, /*!< Select RC_FAST as the source clock */
MCPWM_CARRIER_CLK_SRC_XTAL = SOC_MOD_CLK_XTAL, /*!< Select XTAL as the source clock */
MCPWM_CARRIER_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F96M, /*!< Select PLL_F96M as the default clock choice */
} soc_periph_mcpwm_carrier_clk_src_t;