UART Transmit and Receive例程的测试，在Application中将该例程编译烧录
然后再串口调试助手进行查看现象。并进行相应的代码修改
for (;;)
{
/* Check if 'Enter' key was pressed */
if (cyhal_uart_getc(&cy_retarget_io_uart_obj, &uart_read_value, 1)
== CY_RSLT_SUCCESS)
{
if (uart_read_value == '\r')
{
/* Pause LED blinking by stopping the timer */
if (led_blink_active_flag)
{
cyhal_timer_stop(&led_blink_timer);
printf("LED blinking paused \r\n");
}
else /* Resume LED blinking by starting the timer */
{
cyhal_timer_start(&led_blink_timer);
printf("LED blinking resumed\r\n");
}
/* Move cursor to previous line */
printf("\x1b[1F");
led_blink_active_flag ^= 1;
}
}
/* Check if timer elapsed (interrupt fired) and toggle the LED */
if (timer_interrupt_flag)
{
/* Clear the flag */
timer_interrupt_flag = false;
/* Invert the USER LED state */
cyhal_gpio_toggle(CYBSP_USER_LED);
}
}
}
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