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hello_uart
for Raspberry Pi Pico™, submitted by flashmypico

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/** * Copyright (c) 2020 Raspberry Pi (Trading) Ltd. * * SPDX-License-Identifier: BSD-3-Clause */ #include <stdio.h> #include "pico/stdlib.h" #include "hardware/uart.h" /// \tag::hello_uart[] #define UART_ID uart0 #define BAUD_RATE 115200 // We are using pins 0 and 1, but see the GPIO function select table in the // datasheet for information on which other pins can be used. #define UART_TX_PIN 0 #define UART_RX_PIN 1 int main() { // Set up our UART with the required speed. uart_init(UART_ID, BAUD_RATE); // Set the TX and RX pins by using the function select on the GPIO // Set datasheet for more information on function select gpio_set_function(UART_TX_PIN, UART_FUNCSEL_NUM(UART_ID, UART_TX_PIN)); gpio_set_function(UART_RX_PIN, UART_FUNCSEL_NUM(UART_ID, UART_RX_PIN)); // Use some the various UART functions to send out data // In a default system, printf will also output via the default UART // Send out a character without any conversions uart_putc_raw(UART_ID, 'A'); // Send out a character but do CR/LF conversions uart_putc(UART_ID, 'B'); // Send out a string, with CR/LF conversions uart_puts(UART_ID, " Hello, UART!\n"); return 0; } /// \end::hello_uart[]

This firmware image was imported from the pico-examples repository.

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Homepage: https://github.com/raspberrypi/pico-examples

Repository: https://github.com/raspberrypi/pico-examples/tree/master/uart/hello_uart

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