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rp2/machine_uart: Allow new TX/RX pins on RP2350.

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Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Dryw Wade
2024-08-06 16:13:57 -06:00
committed by Damien George
parent 7a78e5ae7c
commit 957cea23d5
1 changed files with 7 additions and 2 deletions
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9
ports/rp2/machine_uart.c
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@@ -69,8 +69,13 @@
#define MAX_BUFFER_SIZE (32766)
#define IS_VALID_PERIPH(uart, pin) (((((pin) + 4) & 8) >> 3) == (uart))
#if PICO_RP2350
#define IS_VALID_TX(uart, pin) (((pin) & 1) == 0 && IS_VALID_PERIPH(uart, pin))
#define IS_VALID_RX(uart, pin) (((pin) & 1) == 1 && IS_VALID_PERIPH(uart, pin))
#else
#define IS_VALID_TX(uart, pin) (((pin) & 3) == 0 && IS_VALID_PERIPH(uart, pin))
#define IS_VALID_RX(uart, pin) (((pin) & 3) == 1 && IS_VALID_PERIPH(uart, pin))
#endif
#define IS_VALID_CTS(uart, pin) (((pin) & 3) == 2 && IS_VALID_PERIPH(uart, pin))
#define IS_VALID_RTS(uart, pin) (((pin) & 3) == 3 && IS_VALID_PERIPH(uart, pin))
@@ -398,8 +403,8 @@ static void mp_machine_uart_init_helper(machine_uart_obj_t *self, size_t n_args,
__dsb(); // make sure UARTLCR_H register is written to
uart_set_fifo_enabled(self->uart, true);
__dsb(); // make sure UARTLCR_H register is written to
gpio_set_function(self->tx, GPIO_FUNC_UART);
gpio_set_function(self->rx, GPIO_FUNC_UART);
gpio_set_function(self->tx, UART_FUNCSEL_NUM(self->uart, self->tx));
gpio_set_function(self->rx, UART_FUNCSEL_NUM(self->uart, self->rx));
if (self->invert & UART_INVERT_RX) {
gpio_set_inover(self->rx, GPIO_OVERRIDE_INVERT);
}