Move STM32 example projects in family specific folders

2011-10-31 00:16:37 -04:00
parent 68d2e0d1e3
commit 580d25a84b
185 changed files with 8 additions and 8 deletions
--- a/examples/stm32/f1/obldc/systick/systick.c
+++ b/examples/stm32/f1/obldc/systick/systick.c
@@ -0,0 +1,90 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
+ * Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/f1/flash.h>
+#include <libopencm3/stm32/f1/gpio.h>
+#include <libopencm3/stm32/nvic.h>
+#include <libopencm3/stm32/systick.h>
+
+u32 temp32;
+
+void gpio_setup(void)
+{
+	/* Enable GPIOA clock. */
+	rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
+
+	/* Enable GPIOB clock. */
+	rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
+
+	gpio_set(GPIOA, GPIO6);		/* LED0 off */
+	gpio_set(GPIOA, GPIO7);		/* LED1 off */
+	gpio_set(GPIOB, GPIO0);		/* LED2 off */
+	gpio_set(GPIOB, GPIO1);		/* LED3 off */
+
+	/* Set GPIO6/7 (in GPIO port A) to 'output push-pull' for the LEDs. */
+	gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
+	              GPIO_CNF_OUTPUT_PUSHPULL, GPIO6);
+	gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
+	              GPIO_CNF_OUTPUT_PUSHPULL, GPIO7);
+	
+	/* Set GPIO6/7 (in GPIO port B) to 'output push-pull' for the LEDs. */
+	gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
+	              GPIO_CNF_OUTPUT_PUSHPULL, GPIO0);
+	gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
+	              GPIO_CNF_OUTPUT_PUSHPULL, GPIO1);
+}
+
+void sys_tick_handler(void)
+{
+	temp32++;
+
+	/* We call this handler every 1ms so 1000ms = 1s on/off. */
+	if (temp32 == 1000) {
+		gpio_toggle(GPIOA, GPIO6); /* LED2 on/off */
+		temp32 = 0;
+	}
+}
+
+int main(void)
+{
+	rcc_clock_setup_in_hse_8mhz_out_72mhz();
+	gpio_setup();
+
+	gpio_clear(GPIOA, GPIO7);	/* LED1 on */
+	gpio_set(GPIOA, 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;
+}