ESP-IDF doc : mcpwm_cache_enable documentation misleading (IDFGH-3000)

[vortex314]

ESP-IDF documentation on mcpwm_capture_enable seems to suggest that the parmeter num_of_pulse is a 32 bit value. However the underlying register PWM_CAP_CH0_CFG_REG has only 8 bit's for the prescaling. So any value above 255 will give unexpected results.
Also there is an offset by 1 to take into account.

esp_err_t mcpwm_capture_enable(mcpwm_unit_tmcpwm_num, mcpwm_capture_signal_tcap_sig, mcpwm_capture_on_edge_tcap_edge, uint32_t num_of_pulse)

Hope this helps somebody with the same issues.

[Alvin1Zhang]

@vortex314 Thanks for reporting, we will look into and provide feedback.

[Alvin1Zhang]

@vortex314 Thanks for reporting, we will fix the issue. Thanks. @koobest