kopia lustrzana https://github.com/espressif/esp-idf
Merge branch 'bugfix/esp32s2_startup_garbled_output_v4.4' into 'release/v4.4'
esp_system: fix garbled UART output on startup on esp32s2 (v4.4) See merge request espressif/esp-idf!18750pull/9338/head
commit
7804d1c4db
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@ -71,6 +71,12 @@ static void select_rtc_slow_clk(slow_clk_sel_t slow_clk);
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soc_reset_reason_t rst_reas = esp_rom_get_reset_reason(0);
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if (rst_reas == RESET_REASON_CHIP_POWER_ON) {
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cfg.cali_ocode = 1;
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/* Ocode calibration will switch to XTAL frequency, need to wait for UART FIFO
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* to be empty, to avoid garbled output.
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*/
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if (CONFIG_ESP_CONSOLE_UART_NUM >= 0) {
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esp_rom_uart_tx_wait_idle(CONFIG_ESP_CONSOLE_UART_NUM);
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}
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}
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rtc_init(cfg);
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