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fix(esp8266): fix the notes of phy power level error

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Zhang Jun Hao
2019-04-17 21:14:41 +08:00
parent 08fc1b8b63
commit e8bad2e988
1 changed files with 13 additions and 12 deletions
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25
components/esp8266/include/esp_wifi.h
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@ -793,6 +793,7 @@ esp_err_t esp_wifi_set_vendor_ie_cb(esp_vendor_ie_cb_t cb, void *ctx);
/**
* @brief Set maximum WiFi transmiting power
*
* @attention Please Call this API after calling esp_wifi_start()
* @attention WiFi transmiting power is divided to six levels in phy init data.
* Level0 represents highest transmiting power and level5 represents lowest
* transmiting power. Packets of different rates are transmitted in
@ -804,18 +805,18 @@ esp_err_t esp_wifi_set_vendor_ie_cb(esp_vendor_ie_cb_t cb, void *ctx);
* whether to use phy init data in partition or not) will be used. Default
* value is level0. Values passed in power are mapped to transmit power
* levels as follows:
* - [78, 127]: level0
* - [76, 77]: level1
* - [74, 75]: level2
* - [68, 73]: level3
* - [60, 67]: level4
* - [52, 59]: level5
* - [44, 51]: level5 - 2dBm
* - [34, 43]: level5 - 4.5dBm
* - [28, 33]: level5 - 6dBm
* - [20, 27]: level5 - 8dBm
* - [8, 19]: level5 - 11dBm
* - [-128, 7]: level5 - 14dBm
* - [82, 127]: level0
* - [78, 81]: level1
* - [74, 77]: level2
* - [68, 73]: level3
* - [64, 67]: level4
* - [56, 63]: level5
* - [49, 55]: level5 - 2dBm
* - [33, 48]: level5 - 6dBm
* - [25, 32]: level5 - 8dBm
* - [13, 24]: level5 - 11dBm
* - [ 1, 12]: level5 - 14dBm
* - [-128, 0]: level5 - 17.5dBm
*
* @param power Maximum WiFi transmiting power.
*