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phy_init: don’t rewrite valid calibration data

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In the default PHY init routine, calibration data is loaded from NVS.
Most of the time the incremental changes to calibration will be fairly
small, so we don’t need to rewrite the existing calibration data stored
in the NVS.

Possible enhancement to be done in the future: expose a function in PHY
library to tell how big was the change in calibration data. If the
change was significant, then calibration data stored in NVS should be
updated.
This commit is contained in:
Ivan Grokhotkov 2017-02-07 15:14:45 +08:00
parent c78aa138b0
commit 777816cb99
1 changed files with 1 additions and 1 deletions
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2
components/esp32/cpu_start.c
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@ -294,7 +294,7 @@ static void do_phy_init()
esp_phy_init(init_data, calibration_mode, cal_data);
if (calibration_mode != PHY_RF_CAL_NONE) {
if (calibration_mode != PHY_RF_CAL_NONE && err != ESP_OK) {
err = esp_phy_store_cal_data_to_nvs(cal_data);
} else {
err = ESP_OK;