diff options
Diffstat (limited to 'ports/esp32/machine_uart.c')
| -rw-r--r-- | ports/esp32/machine_uart.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/ports/esp32/machine_uart.c b/ports/esp32/machine_uart.c index 661c07138..c4dab2cae 100644 --- a/ports/esp32/machine_uart.c +++ b/ports/esp32/machine_uart.c @@ -58,7 +58,7 @@ #define UART_IRQ_RXIDLE (0x1000) #define UART_IRQ_BREAK (1 << UART_BREAK) #define MP_UART_ALLOWED_FLAGS (UART_IRQ_RX | UART_IRQ_RXIDLE | UART_IRQ_BREAK) -#define RXIDLE_TIMER_MIN (5000) // 500 us +#define RXIDLE_TIMER_MIN (machine_timer_freq_hz() * 5 / 10000) // 500us minimum rxidle time #define UART_QUEUE_SIZE (3) enum { @@ -535,7 +535,7 @@ static void uart_irq_configure_timer(machine_uart_obj_t *self, mp_uint_t trigger self->mp_irq_obj->ishard = false; uint32_t baudrate; uart_get_baudrate(self->uart_num, &baudrate); - mp_int_t period = TIMER_SCALE * 20 / baudrate + 1; + mp_int_t period = machine_timer_freq_hz() * 20 / baudrate + 1; if (period < RXIDLE_TIMER_MIN) { period = RXIDLE_TIMER_MIN; } |