tillitis-key/hw/application_fpga/fw/tk1/led.c
Daniel Lublin 4afdc1cd1f
fw: Steady white led while waiting cmd; led off while loading app
Signed-off-by: Daniel Lublin <daniel@lublin.se>
2023-03-14 10:25:03 +01:00

22 lines
394 B
C

/*
* Copyright (C) 2022, 2023 - Tillitis AB
* SPDX-License-Identifier: GPL-2.0-only
*/
#include "led.h"
#include "../tk1_mem.h"
#include "types.h"
void forever_redflash()
{
static volatile uint32_t *led = (volatile uint32_t *)TK1_MMIO_TK1_LED;
int led_on = 0;
for (;;) {
*led = led_on ? LED_RED : LED_BLACK;
for (volatile int i = 0; i < 800000; i++) {
}
led_on = !led_on;
}
}