From cff706e3ca3823ffb388a4e87c4ef8bf925945c4 Mon Sep 17 00:00:00 2001 From: Fergus Noble Date: Thu, 15 Sep 2011 01:20:45 -0700 Subject: Rename F1 examples folder. --- examples/stm32/other/systick/systick.c | 75 ---------------------------------- 1 file changed, 75 deletions(-) delete mode 100644 examples/stm32/other/systick/systick.c (limited to 'examples/stm32/other/systick/systick.c') diff --git a/examples/stm32/other/systick/systick.c b/examples/stm32/other/systick/systick.c deleted file mode 100644 index c05aff7..0000000 --- a/examples/stm32/other/systick/systick.c +++ /dev/null @@ -1,75 +0,0 @@ -/* - * This file is part of the libopencm3 project. - * - * Copyright (C) 2010 Thomas Otto - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#include -#include -#include -#include -#include - -u32 temp32; - -void gpio_setup(void) -{ - /* Enable GPIOB clock. */ - rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); - - /* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */ - gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, - GPIO_CNF_OUTPUT_PUSHPULL, GPIO6); - gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, - GPIO_CNF_OUTPUT_PUSHPULL, GPIO7); -} - -void sys_tick_handler() -{ - temp32++; - - /* we call this handler every 1ms so 1000ms = 1s on/off */ - if (temp32 == 1000) { - gpio_toggle(GPIOB, GPIO6); /* LED2 on/off */ - temp32 = 0; - } -} - -int main(void) -{ - rcc_clock_setup_in_hse_16mhz_out_72mhz(); - gpio_setup(); - - gpio_clear(GPIOB, GPIO7); /* LED1 on */ - gpio_set(GPIOB, GPIO6); /* LED2 off */ - - temp32 = 0; - - /* 72MHz / 8 => 9000000 counts per second */ - systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); - - /* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */ - systick_set_reload(9000); - - systick_interrupt_enable(); - - /* start counting */ - systick_counter_enable(); - - while(1); /* Halt. */ - - return 0; -} -- cgit v1.2.3