mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
synced 2026-06-02 20:41:39 +02:00
Kevin Thomas
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/**
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******************************************************************************
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* @file main.c
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* @author Kevin Thomas
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* @brief UART demonstration: echo received characters in uppercase.
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*
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* Demonstrates hardware UART0 using the bare-metal UART driver.
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* Characters typed into a terminal via a USB-to-UART adapter
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* are echoed back in uppercase.
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*
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* Wiring:
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* GPIO0 (TX) -> USB-to-UART adapter RX
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* GPIO1 (RX) -> USB-to-UART adapter TX
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* GND -> USB-to-UART adapter GND
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*
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2026 Kevin Thomas.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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#include "rp2350_uart.h"
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int main(void)
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{
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uart_puts("UART driver ready (115200 8N1)\r\n");
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uart_puts("Type characters to echo them back in UPPERCASE:\r\n");
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while (1)
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{
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if (uart_is_readable())
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{
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char c = uart_getchar();
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char upper = uart_to_upper(c);
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uart_putchar(upper);
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}
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}
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}
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