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esp-idf
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driver: reset communication peripherals when the cpu starts.

This commit is contained in:
kooho 2018-05-18 11:12:19 +08:00
parent d84add4513
commit ef39c09bc1
2 changed files with 23 additions and 19 deletions
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3
components/driver/uart.c
View File

@ -648,6 +648,9 @@ esp_err_t uart_param_config(uart_port_t uart_num, const uart_config_t *uart_conf
r = uart_set_tx_idle_num(uart_num, UART_TX_IDLE_NUM_DEFAULT);
if (r != ESP_OK) return r;
r = uart_set_stop_bits(uart_num, uart_config->stop_bits);
//A hardware reset does not reset the fifo,
//so we need to reset the fifo manually.
uart_reset_rx_fifo(uart_num);
return r;
}

39
components/esp32/clk.c
View File

@ -215,31 +215,12 @@ void esp_perip_clk_init(void)
}
else {
common_perip_clk = DPORT_WDG_CLK_EN |
DPORT_I2S0_CLK_EN |
#if CONFIG_CONSOLE_UART_NUM != 0
DPORT_UART_CLK_EN |
#endif
#if CONFIG_CONSOLE_UART_NUM != 1
DPORT_UART1_CLK_EN |
#endif
#if CONFIG_CONSOLE_UART_NUM != 2
DPORT_UART2_CLK_EN |
#endif
DPORT_SPI2_CLK_EN |
DPORT_I2C_EXT0_CLK_EN |
DPORT_UHCI0_CLK_EN |
DPORT_RMT_CLK_EN |
DPORT_PCNT_CLK_EN |
DPORT_LEDC_CLK_EN |
DPORT_UHCI1_CLK_EN |
DPORT_TIMERGROUP1_CLK_EN |
DPORT_SPI3_CLK_EN |
DPORT_PWM0_CLK_EN |
DPORT_I2C_EXT1_CLK_EN |
DPORT_CAN_CLK_EN |
DPORT_PWM1_CLK_EN |
DPORT_I2S1_CLK_EN |
DPORT_SPI_DMA_CLK_EN |
DPORT_PWM2_CLK_EN |
DPORT_PWM3_CLK_EN;
hwcrypto_perip_clk = DPORT_PERI_EN_AES |
@ -255,6 +236,26 @@ void esp_perip_clk_init(void)
DPORT_WIFI_CLK_EMAC_EN;
}
//Reset the communication peripherals like I2C, SPI, UART, I2S and bring them to known state.
common_perip_clk |= DPORT_I2S0_CLK_EN |
#if CONFIG_CONSOLE_UART_NUM != 0
DPORT_UART_CLK_EN |
#endif
#if CONFIG_CONSOLE_UART_NUM != 1
DPORT_UART1_CLK_EN |
#endif
#if CONFIG_CONSOLE_UART_NUM != 2
DPORT_UART2_CLK_EN |
#endif
DPORT_SPI2_CLK_EN |
DPORT_I2C_EXT0_CLK_EN |
DPORT_UHCI0_CLK_EN |
DPORT_RMT_CLK_EN |
DPORT_UHCI1_CLK_EN |
DPORT_SPI3_CLK_EN |
DPORT_I2C_EXT1_CLK_EN |
DPORT_I2S1_CLK_EN |
DPORT_SPI_DMA_CLK_EN;
#if CONFIG_SPIRAM_SPEED_80M
//80MHz SPIRAM uses SPI3 as well; it's initialized before this is called. Because it is used in