diff options
| -rw-r--r-- | ports/esp32/machine_uart.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/ports/esp32/machine_uart.c b/ports/esp32/machine_uart.c index d9b845047..7a2dc2b32 100644 --- a/ports/esp32/machine_uart.c +++ b/ports/esp32/machine_uart.c @@ -37,6 +37,13 @@ #include "modmachine.h" #include "uart.h" +#if SOC_UART_SUPPORT_XTAL_CLK +// Works independently of APB frequency, on ESP32C3, ESP32S3. +#define UART_SOURCE_CLK UART_SCLK_XTAL +#else +#define UART_SOURCE_CLK UART_SCLK_DEFAULT +#endif + #define UART_INV_TX UART_SIGNAL_TXD_INV #define UART_INV_RX UART_SIGNAL_RXD_INV #define UART_INV_RTS UART_SIGNAL_RTS_INV @@ -157,7 +164,8 @@ STATIC void machine_uart_init_helper(machine_uart_obj_t *self, size_t n_args, co } uart_config_t uartcfg = { .flow_ctrl = UART_HW_FLOWCTRL_DISABLE, - .rx_flow_ctrl_thresh = 0 + .rx_flow_ctrl_thresh = 0, + .source_clk = UART_SOURCE_CLK, }; uint32_t baudrate; uart_get_baudrate(self->uart_num, &baudrate); @@ -308,12 +316,9 @@ STATIC mp_obj_t machine_uart_make_new(const mp_obj_type_t *type, size_t n_args, .parity = UART_PARITY_DISABLE, .stop_bits = UART_STOP_BITS_1, .flow_ctrl = UART_HW_FLOWCTRL_DISABLE, - .rx_flow_ctrl_thresh = 0 + .rx_flow_ctrl_thresh = 0, + .source_clk = UART_SOURCE_CLK, }; - #if SOC_UART_SUPPORT_XTAL_CLK - // works independently of APB frequency - uartcfg.source_clk = UART_SCLK_XTAL; // ESP32C3, ESP32S3 - #endif // create instance machine_uart_obj_t *self = mp_obj_malloc(machine_uart_obj_t, &machine_uart_type); |