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feat(uart): support HP/LP uart on ESP32S31

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This commit is contained in:
gaoxu
2026-04-15 10:57:26 +08:00
parent 668dfb7e33
commit 0068fb1507
24 changed files with 1374 additions and 125 deletions
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components/esp_driver_uart/src/uart.c
+4
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@@ -225,6 +225,8 @@ static bool uart_module_enable(uart_port_t uart_num)
PERIPH_RCC_ATOMIC() {
uart_ll_enable_bus_clock(uart_num, true);
}
uart_ll_mem_set_low_power_mode(uart_num, UART_LL_MEM_LP_MODE_SHUT_DOWN);
uart_ll_mem_power_by_pmu(uart_num);
if (uart_num != CONFIG_ESP_CONSOLE_UART_NUM) {
// Workaround: Set RX signal to high to avoid false RX BRK_DET interrupt raised after register reset
if (uart_context[uart_num].rx_io_num == -1) {
@@ -270,6 +272,8 @@ static bool uart_module_enable(uart_port_t uart_num)
gpio_pullup_en(io_num);
#endif
}
lp_uart_ll_mem_set_low_power_mode(UART_LL_MEM_LP_MODE_SHUT_DOWN);
lp_uart_ll_mem_power_by_pmu();
PERIPH_RCC_ATOMIC() {
lp_uart_ll_enable_bus_clock(TO_LP_UART_NUM(uart_num), true);
lp_uart_ll_reset_register(TO_LP_UART_NUM(uart_num));