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Nucleo Examples F411RE

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This commit is contained in:
Chuck McManis
2015-02-16 17:33:55 -08:00
committed by Piotr Esden-Tempski
parent 9cee61f089
commit 8019726f51
4 changed files with 140 additions and 0 deletions
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examples/stm32/f4/nucleo-f411re/blink/Makefile Normal file
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##
## This file is part of the libopencm3 project.
##
## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
##
## This library is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## This library 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 Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with this library. If not, see <http://www.gnu.org/licenses/>.
##
BINARY = blink
LDSCRIPT = ../nucleo-f411re.ld
include ../../Makefile.include

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examples/stm32/f4/nucleo-f411re/blink/README.md Normal file
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# README
This is the smallest-possible example program using libopencm3.
It's intended for the ST Nucleo-F411RE eval board. It should blink
the GREEN LED on the board.
## Board connections
*none required*

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examples/stm32/f4/nucleo-f411re/blink/blink.c Normal file
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/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
* Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com>
* Copyright (c) 2015 Chuck McManis <cmcmanis@mcmanis.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/gpio.h>
static void gpio_setup(void)
{
/* Enable GPIOA clock. */
/* Manually: */
// RCC_AHB1ENR |= RCC_AHB1ENR_IOPAEN;
/* Using API functions: */
rcc_periph_clock_enable(RCC_GPIOA);
/* Set GPIO5 (in GPIO port A) to 'output push-pull'. */
/* Manually: */
// GPIOA_CRH = (GPIO_CNF_OUTPUT_PUSHPULL << (((8 - 8) * 4) + 2));
// GPIOA_CRH |= (GPIO_MODE_OUTPUT_2_MHZ << ((8 - 8) * 4));
/* Using API functions: */
gpio_mode_setup(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO5);
}
int main(void)
{
int i;
gpio_setup();
/* Blink the LED (PC8) on the board. */
while (1) {
/* Manually: */
// GPIOA_BSRR = GPIO5; /* LED off */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
// GPIOA_BRR = GPIO5; /* LED on */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
/* Using API functions gpio_set()/gpio_clear(): */
// gpio_set(GPIOA, GPIO5); /* LED off */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
// gpio_clear(GPIOA, GPIO5); /* LED on */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
/* Using API function gpio_toggle(): */
gpio_toggle(GPIOA, GPIO5); /* LED on/off */
for (i = 0; i < 1000000; i++) { /* Wait a bit. */
__asm__("nop");
}
}
return 0;
}

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examples/stm32/f4/nucleo-f411re/nucleo-f411re.ld Normal file
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/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
* Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* Linker script for Nucleo F411RE (STM32F411RE, 512K flash, 128K RAM). */
/* Define memory regions. */
MEMORY
{
rom (rx) : ORIGIN = 0x08000000, LENGTH = 512K
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 128K
}
/* Include the common ld script. */
INCLUDE libopencm3_stm32f4.ld