esp_etm_new_channel() function

Allocate an ETM channel

Syntax

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Summary

Declaration

from esp_etm.h:56

esp_err_t esp_etm_new_channel(const esp_etm_channel_config_t *config, esp_etm_channel_handle_t *ret_chan);

Arguments

Argument

Description

config

ETM channel configuration

ret_chan

Returned ETM channel handle

Return value

- ESP_OK: Allocate ETM channel successfully - ESP_ERR_INVALID_ARG: Allocate ETM channel failed because of invalid argument - ESP_ERR_NO_MEM: Allocate ETM channel failed because of out of memory - ESP_ERR_NOT_FOUND: Allocate ETM channel failed because all channels are used up and no more free one - ESP_FAIL: Allocate ETM channel failed because of other reasons

Notes

The channel can later be freed by `esp_etm_del_channel`

Examples

esp_etm_new_channel() is referenced by 1 libraries and example projects:

gptimer_capture_hc_sr04 sample

References

from 0/1 examples

Code

Location

esp_err_t esp_etm_new_channel(const esp_etm_channel_config_t *config, esp_etm_channel_handle_t *ret_chan);

esp_etm.h:56

esp_etm_new_channel() function

Syntax

Arguments

Return value

Notes

Examples

References

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