Add miniblink (+f1).
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7 changed files with 234 additions and 0 deletions
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@ -6,6 +6,10 @@ They aren't too specific for the bat boards, except the usual pinout considerati
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## Short summary for the examples
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### miniblink
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The onboard LED blinks. This is the classic miniblink from [libopencm3 examples], modified for the bat board, and the various MCUs I tested the board with (L052, F072, and the ubiquitous F103). Highights the code adjustments one needs for the different MCUs. Clock setup not implemented (except for F103, which just calls a library function, to test the crystal).
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### blink_btn
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The onboard LED blinks, holding the button slows the frequency somewhat. The clocks are set up to 48MHz on F072, 32MHz on L052 (max).
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43
common.f1.mk
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43
common.f1.mk
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@ -0,0 +1,43 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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LIBNAME = opencm3_stm32f1
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DEFS += -DSTM32F1
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FP_FLAGS ?= -msoft-float
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ARCH_FLAGS = -mthumb -mcpu=cortex-m3 $(FP_FLAGS) -mfix-cortex-m3-ldrd
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################################################################################
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# OpenOCD specific variables
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OOCD ?= openocd
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OOCD_INTERFACE ?= flossjtag
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OOCD_BOARD ?= olimex_stm32_h103
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################################################################################
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# Black Magic Probe specific variables
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# Set the BMP_PORT to a serial port and then BMP is used for flashing
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BMP_PORT ?=
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################################################################################
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# texane/stlink specific variables
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#STLINK_PORT ?= :4242
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include ../libopencm3.rules.mk
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26
miniblink/Makefile.f0
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26
miniblink/Makefile.f0
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@ -0,0 +1,26 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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BINARY = miniblink
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OPENCM3_DIR=../libopencm3
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LDSCRIPT = $(OPENCM3_DIR)/lib/stm32/f0/stm32f07xzb.ld
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include ../common.f0.mk
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26
miniblink/Makefile.f1
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26
miniblink/Makefile.f1
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@ -0,0 +1,26 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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BINARY = miniblink
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OPENCM3_DIR=../libopencm3
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LDSCRIPT = $(OPENCM3_DIR)/lib/stm32/f1/stm32f103x8.ld
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include ../common.f1.mk
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26
miniblink/Makefile.l0
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26
miniblink/Makefile.l0
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@ -0,0 +1,26 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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BINARY = miniblink
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OPENCM3_DIR=../libopencm3
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LDSCRIPT = $(OPENCM3_DIR)/lib/stm32/l0/stm32l0xx8.ld
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include ../common.l0.mk
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27
miniblink/Makefile.l0btld
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27
miniblink/Makefile.l0btld
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@ -0,0 +1,27 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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BINARY = miniblink
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OPENCM3_DIR=../libopencm3
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LDSCRIPT = ../l052-bldr.ld
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DEFS += -DBOOTLOADER8K
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include ../common.l0.mk
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82
miniblink/miniblink.c
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82
miniblink/miniblink.c
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@ -0,0 +1,82 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/stm32/rcc.h>
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#include <libopencm3/stm32/gpio.h>
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#define LED_GPIO GPIOA
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#define LED_PIN GPIO15
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#define LED_RCC_GPIO RCC_GPIOA
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// MCUs run at different speeds, so adjust to your liking
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#if defined(STM32F0)
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#define DELAY_CONSTANT 100000
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#elif defined(STM32L0)
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#define DELAY_CONSTANT 100000
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#elif defined(STM32F1)
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#define DELAY_CONSTANT 2000000
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#endif /* STM32F1 */
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static void gpio_setup(void)
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{
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/* Enable the correct clock. */
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/* Using API functions; for how to do it "manually" see libopencm3-examples/.../miniblink */
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rcc_periph_clock_enable(LED_RCC_GPIO);
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/* Set LED_PIN to 'output push-pull'. */
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#if defined(STM32F0) || defined(STM32L0)
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gpio_mode_setup(LED_GPIO, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_PIN);
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#elif defined(STM32F1)
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gpio_set_mode(LED_GPIO, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, LED_PIN);
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#endif /* STM32F1 */
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}
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int main(void)
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{
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int i;
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#if defined(BOOTLOADER8K)
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// need to relocate the vector table if the bootloader is in flash
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# define SCB_VTOR MMIO32(0xE000ED08)
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SCB_VTOR = (uint32_t) 0x08002000;
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#endif
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#if defined(STM32F1)
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// disable JTAG, leave SWD (the bat board has LED on one of the JTAG pins)
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rcc_periph_clock_enable(RCC_AFIO);
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AFIO_MAPR |= (1<<25); // not universal code; assumes RESET AFIO_MAPR state
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rcc_clock_setup_in_hse_16mhz_out_72mhz(); // also test if the ext crystal works
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#endif
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gpio_setup();
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/* Blink the LED on the board. */
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while (1) {
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gpio_toggle(LED_GPIO, LED_PIN);
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// manually set: GPIOA_BRR = GPIO15;
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// manually clear: GPIOA_BSRR = GPIO15;
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for (i = 0; i < DELAY_CONSTANT; i++)
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__asm__("nop");
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}
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return 0;
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}
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// vim: tabstop=4:shiftwidth=4:noexpandtab
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