Rpi Pico receiving on multiple UARTs by C-SDK [closed]

Question

How make by C-SDK same Rpi Pico receiving on multiple UARTs

Answer 1

To enable the Raspberry Pi Pico to receive data on multiple UARTs using the C-SDK, you'll need to configure and initialize each UART interface separately. Here is an example code:

#include <stdio.h>
#include "pico/stdlib.h"
#include "hardware/uart.h"

#define UART1_ID uart0
#define UART1_TX_PIN 0
#define UART1_RX_PIN 1
#define UART1_BAUD_RATE 9600

#define UART2_ID uart1
#define UART2_TX_PIN 2
#define UART2_RX_PIN 3
#define UART2_BAUD_RATE 115200

int main() {
    stdio_init_all();

    // Initialize UART1
    uart_init(UART1_ID, UART1_BAUD_RATE);
    gpio_set_function(UART1_TX_PIN, GPIO_FUNC_UART);
    gpio_set_function(UART1_RX_PIN, GPIO_FUNC_UART);
    uart_set_hw_flow(UART1_ID, false, false);

    // Initialize UART2
    uart_init(UART2_ID, UART2_BAUD_RATE);
    gpio_set_function(UART2_TX_PIN, GPIO_FUNC_UART);
    gpio_set_function(UART2_RX_PIN, GPIO_FUNC_UART);
    uart_set_hw_flow(UART2_ID, false, false);

    while(1) {
        // Receive data on UART1
        if(uart_is_readable(UART1_ID)) {
            printf("Received on UART1: %c\n", uart_getc(UART1_ID));
        }

        // Receive data on UART2
        if(uart_is_readable(UART2_ID)) {
            printf("Received on UART2: %c\n", uart_getc(UART2_ID));
        }
    }

    return 0;
}