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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "bsp/board_api.h"
/* Blink pattern
* - 250 ms : button is not pressed
* - 1000 ms : button is pressed (and hold)
*/
enum {
BLINK_PRESSED = 250,
BLINK_UNPRESSED = 1000
};
#define HELLO_STR "Hello from TinyUSB\r\n"
int main(void) {
board_init();
board_led_write(true);
uint32_t start_ms = 0;
bool led_state = false;
while (1) {
uint32_t interval_ms = board_button_read() ? BLINK_PRESSED : BLINK_UNPRESSED;
// Blink and print every interval ms
if (!(board_millis() - start_ms < interval_ms)) {
board_uart_write(HELLO_STR, strlen(HELLO_STR));
start_ms = board_millis();
board_led_write(led_state);
led_state = 1 - led_state; // toggle
}
// echo
uint8_t ch;
if (board_uart_read(&ch, 1) > 0) {
board_uart_write(&ch, 1);
}
}
}
#if CFG_TUSB_MCU == OPT_MCU_ESP32S2 || CFG_TUSB_MCU == OPT_MCU_ESP32S3
void app_main(void) {
main();
}
#endif
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