Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-10-02 11:10:54 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix(mcpwm): correct the wrong capture prescale

Browse Source
This commit is contained in:
Chen Jichang
2026-09-07 17:09:20 +08:00
parent f63cfa51bf
commit 2496ea4f18
14 changed files with 533 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/hal/esp32c5/include/hal/mcpwm_ll.h
+5 -3
View File
@@ -1635,16 +1635,18 @@ static inline mcpwm_capture_edge_t mcpwm_ll_capture_get_edge(mcpwm_dev_t *mcpwm,
}
/**
* @brief Set the prescale of the input capture signal
* @brief Set capture input prescale (same-edge ratio)
*
* @note Hardware field N = 0 means bypass (ratio 1); N >= 1 means same-edge ratio = 2 * N.
*
* @param mcpwm Peripheral instance address
* @param channel Channel ID, index from 0 to 2
* @param prescale Prescale value
* @param prescale Desired same-edge ratio: 1 (bypass) or even
*/
static inline void mcpwm_ll_capture_set_prescale(mcpwm_dev_t *mcpwm, int channel, uint32_t prescale)
{
HAL_ASSERT(prescale > 0);
HAL_FORCE_MODIFY_U32_REG_FIELD(mcpwm->cap_chn_cfg[channel], capn_prescale, prescale - 1);
HAL_FORCE_MODIFY_U32_REG_FIELD(mcpwm->cap_chn_cfg[channel], capn_prescale, prescale / 2);
}
//////////////////////////////////////////MCPWM ETM Specific////////////////////////////////////////////////////////////