Commit 9a5cd08d authored by Raffael Rostagno's avatar Raffael Rostagno Committed by Anas Nashif
Browse files

uart: esp32: Fixing garbage characters on mcuboot 



Fixes garbage characters on mcuboot by adjusting UART baudrate
during boot phase according to clock source.

Signed-off-by: default avatarRaffael Rostagno <raffael.rostagno@espressif.com>
parent 405492f0

drivers/clock_control/clock_control_esp32.c

+4 −1
Original line number Diff line number Diff line
@@ -688,8 +688,11 @@ static int esp32_cpu_clock_configure(const struct esp32_cpu_clock_config *cpu_cf 


#if !defined(ESP_CONSOLE_UART_NONE)

#if !defined(CONFIG_SOC_SERIES_ESP32C2) && !defined(CONFIG_SOC_SERIES_ESP32C6)

#if defined(CONFIG_MCUBOOT) && defined(ESP_ROM_UART_CLK_IS_XTAL)

	uint32_t uart_clock_src_hz = (uint32_t)rtc_clk_xtal_freq_get() * MHZ(1);

#else

	uint32_t uart_clock_src_hz = esp_clk_apb_freq();



#endif

	esp_rom_uart_set_clock_baudrate(ESP_CONSOLE_UART_NUM, uart_clock_src_hz,

					ESP_CONSOLE_UART_BAUDRATE);

#endif

CRA Git | Maintained and supported by SUSTech CRA and CCSE