Add software
This commit is contained in:
@ -0,0 +1,48 @@
|
||||
##
|
||||
## 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/>.
|
||||
##
|
||||
|
||||
LIBNAME = libopencm3_stm32f2
|
||||
|
||||
PREFIX ?= arm-none-eabi
|
||||
|
||||
CC = $(PREFIX)-gcc
|
||||
AR = $(PREFIX)-ar
|
||||
CFLAGS = -Os -g \
|
||||
-Wall -Wextra -Wimplicit-function-declaration \
|
||||
-Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \
|
||||
-Wundef -Wshadow \
|
||||
-I../../../include -fno-common \
|
||||
-mcpu=cortex-m3 -mthumb $(FP_FLAGS) -Wstrict-prototypes \
|
||||
-ffunction-sections -fdata-sections -MD -DSTM32F2
|
||||
# ARFLAGS = rcsv
|
||||
ARFLAGS = rcs
|
||||
|
||||
OBJS = gpio.o rcc.o
|
||||
|
||||
OBJS += crc_common_all.o dac_common_all.o dma_common_f24.o \
|
||||
gpio_common_all.o gpio_common_f0234.o i2c_common_all.o \
|
||||
iwdg_common_all.o rtc_common_l1f024.o spi_common_all.o \
|
||||
spi_common_f124.o timer_common_all.o timer_common_f234.o \
|
||||
timer_common_f24.o usart_common_all.o usart_common_f124.o \
|
||||
flash_common_f234.o flash_common_f24.o hash_common_f24.o \
|
||||
crypto_common_f24.o exti_common_all.o
|
||||
|
||||
VPATH += ../../usb:../:../../cm3:../common
|
||||
|
||||
include ../../Makefile.include
|
@ -0,0 +1,34 @@
|
||||
/** @defgroup crc_file CRC
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx CRC</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 15 October 2012
|
||||
|
||||
LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/crc.h>
|
||||
#include <libopencm3/stm32/common/crc_common_all.h>
|
||||
|
||||
|
@ -0,0 +1,33 @@
|
||||
/** @defgroup dac_file DAC
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx DAC</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 18 August 2012
|
||||
|
||||
LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/dac.h>
|
||||
#include <libopencm3/stm32/common/dac_common_all.h>
|
||||
|
@ -0,0 +1,33 @@
|
||||
/** @defgroup dma_file DMA
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx DMA</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 30 November 2012
|
||||
|
||||
LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/dma.h>
|
||||
#include <libopencm3/stm32/common/dma_common_f24.h>
|
||||
|
@ -0,0 +1,31 @@
|
||||
/** @defgroup gpio_file GPIO
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx General Purpose I/O</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 18 August 2012
|
||||
|
||||
LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/gpio.h>
|
@ -0,0 +1,33 @@
|
||||
/** @defgroup i2c_file I2C
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx I2C</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 15 October 2012
|
||||
|
||||
LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/i2c.h>
|
||||
#include <libopencm3/stm32/common/spi_common_all.h>
|
||||
|
@ -0,0 +1,33 @@
|
||||
/** @defgroup iwdg_file IWDG
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx Independent Watchdog Timer</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 18 August 2012
|
||||
|
||||
LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/iwdg.h>
|
||||
#include <libopencm3/stm32/common/iwdg_common_all.h>
|
||||
|
@ -0,0 +1,106 @@
|
||||
/*
|
||||
* 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/>.
|
||||
*/
|
||||
|
||||
/* Generic linker script for STM32 targets using libopencm3. */
|
||||
|
||||
/* Memory regions must be defined in the ld script which includes this one. */
|
||||
|
||||
/* Enforce emmition of the vector table. */
|
||||
EXTERN (vector_table)
|
||||
|
||||
/* Define the entry point of the output file. */
|
||||
ENTRY(reset_handler)
|
||||
|
||||
/* Define sections. */
|
||||
SECTIONS
|
||||
{
|
||||
.text : {
|
||||
*(.vectors) /* Vector table */
|
||||
*(.text*) /* Program code */
|
||||
. = ALIGN(4);
|
||||
*(.rodata*) /* Read-only data */
|
||||
. = ALIGN(4);
|
||||
} >rom
|
||||
|
||||
/* C++ Static constructors/destructors, also used for __attribute__
|
||||
* ((constructor)) and the likes */
|
||||
.preinit_array : {
|
||||
. = ALIGN(4);
|
||||
__preinit_array_start = .;
|
||||
KEEP (*(.preinit_array))
|
||||
__preinit_array_end = .;
|
||||
} >rom
|
||||
.init_array : {
|
||||
. = ALIGN(4);
|
||||
__init_array_start = .;
|
||||
KEEP (*(SORT(.init_array.*)))
|
||||
KEEP (*(.init_array))
|
||||
__init_array_end = .;
|
||||
} >rom
|
||||
.fini_array : {
|
||||
. = ALIGN(4);
|
||||
__fini_array_start = .;
|
||||
KEEP (*(.fini_array))
|
||||
KEEP (*(SORT(.fini_array.*)))
|
||||
__fini_array_end = .;
|
||||
} >rom
|
||||
|
||||
/*
|
||||
* Another section used by C++ stuff, appears when using newlib with
|
||||
* 64bit (long long) printf support
|
||||
*/
|
||||
.ARM.extab : {
|
||||
*(.ARM.extab*)
|
||||
} >rom
|
||||
.ARM.exidx : {
|
||||
__exidx_start = .;
|
||||
*(.ARM.exidx*)
|
||||
__exidx_end = .;
|
||||
} >rom
|
||||
|
||||
. = ALIGN(4);
|
||||
_etext = .;
|
||||
|
||||
.data : {
|
||||
_data = .;
|
||||
*(.data*) /* Read-write initialized data */
|
||||
. = ALIGN(4);
|
||||
_edata = .;
|
||||
} >ram AT >rom
|
||||
_data_loadaddr = LOADADDR(.data);
|
||||
|
||||
.bss : {
|
||||
*(.bss*) /* Read-write zero initialized data */
|
||||
*(COMMON)
|
||||
. = ALIGN(4);
|
||||
_ebss = .;
|
||||
} >ram
|
||||
|
||||
/*
|
||||
* The .eh_frame section appears to be used for C++ exception handling.
|
||||
* You may need to fix this if you're using C++.
|
||||
*/
|
||||
/DISCARD/ : { *(.eh_frame) }
|
||||
|
||||
. = ALIGN(4);
|
||||
end = .;
|
||||
}
|
||||
|
||||
PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
|
||||
|
@ -0,0 +1,415 @@
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* Copyright (C) 2009 Federico Ruiz-Ugalde <memeruiz at gmail dot com>
|
||||
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
|
||||
* Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
|
||||
*
|
||||
* 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/cm3/assert.h>
|
||||
#include <libopencm3/stm32/f2/rcc.h>
|
||||
#include <libopencm3/stm32/f2/flash.h>
|
||||
|
||||
/* Set the default ppre1 and ppre2 peripheral clock frequencies after reset. */
|
||||
uint32_t rcc_ppre1_frequency = 16000000;
|
||||
uint32_t rcc_ppre2_frequency = 16000000;
|
||||
|
||||
const clock_scale_t hse_8mhz_3v3[CLOCK_3V3_END] = {
|
||||
{ /* 120MHz */
|
||||
.pllm = 8,
|
||||
.plln = 240,
|
||||
.pllp = 2,
|
||||
.pllq = 5,
|
||||
.hpre = RCC_CFGR_HPRE_DIV_NONE,
|
||||
.ppre1 = RCC_CFGR_PPRE_DIV_4,
|
||||
.ppre2 = RCC_CFGR_PPRE_DIV_2,
|
||||
.flash_config = FLASH_ACR_ICE | FLASH_ACR_DCE |
|
||||
FLASH_ACR_LATENCY_3WS,
|
||||
.apb1_frequency = 30000000,
|
||||
.apb2_frequency = 60000000,
|
||||
},
|
||||
};
|
||||
|
||||
void rcc_osc_ready_int_clear(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case PLL:
|
||||
RCC_CIR |= RCC_CIR_PLLRDYC;
|
||||
break;
|
||||
case HSE:
|
||||
RCC_CIR |= RCC_CIR_HSERDYC;
|
||||
break;
|
||||
case HSI:
|
||||
RCC_CIR |= RCC_CIR_HSIRDYC;
|
||||
break;
|
||||
case LSE:
|
||||
RCC_CIR |= RCC_CIR_LSERDYC;
|
||||
break;
|
||||
case LSI:
|
||||
RCC_CIR |= RCC_CIR_LSIRDYC;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void rcc_osc_ready_int_enable(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case PLL:
|
||||
RCC_CIR |= RCC_CIR_PLLRDYIE;
|
||||
break;
|
||||
case HSE:
|
||||
RCC_CIR |= RCC_CIR_HSERDYIE;
|
||||
break;
|
||||
case HSI:
|
||||
RCC_CIR |= RCC_CIR_HSIRDYIE;
|
||||
break;
|
||||
case LSE:
|
||||
RCC_CIR |= RCC_CIR_LSERDYIE;
|
||||
break;
|
||||
case LSI:
|
||||
RCC_CIR |= RCC_CIR_LSIRDYIE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void rcc_osc_ready_int_disable(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case PLL:
|
||||
RCC_CIR &= ~RCC_CIR_PLLRDYIE;
|
||||
break;
|
||||
case HSE:
|
||||
RCC_CIR &= ~RCC_CIR_HSERDYIE;
|
||||
break;
|
||||
case HSI:
|
||||
RCC_CIR &= ~RCC_CIR_HSIRDYIE;
|
||||
break;
|
||||
case LSE:
|
||||
RCC_CIR &= ~RCC_CIR_LSERDYIE;
|
||||
break;
|
||||
case LSI:
|
||||
RCC_CIR &= ~RCC_CIR_LSIRDYIE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
int rcc_osc_ready_int_flag(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case PLL:
|
||||
return ((RCC_CIR & RCC_CIR_PLLRDYF) != 0);
|
||||
break;
|
||||
case HSE:
|
||||
return ((RCC_CIR & RCC_CIR_HSERDYF) != 0);
|
||||
break;
|
||||
case HSI:
|
||||
return ((RCC_CIR & RCC_CIR_HSIRDYF) != 0);
|
||||
break;
|
||||
case LSE:
|
||||
return ((RCC_CIR & RCC_CIR_LSERDYF) != 0);
|
||||
break;
|
||||
case LSI:
|
||||
return ((RCC_CIR & RCC_CIR_LSIRDYF) != 0);
|
||||
break;
|
||||
}
|
||||
|
||||
cm3_assert_not_reached();
|
||||
}
|
||||
|
||||
void rcc_css_int_clear(void)
|
||||
{
|
||||
RCC_CIR |= RCC_CIR_CSSC;
|
||||
}
|
||||
|
||||
int rcc_css_int_flag(void)
|
||||
{
|
||||
return ((RCC_CIR & RCC_CIR_CSSF) != 0);
|
||||
}
|
||||
|
||||
void rcc_wait_for_osc_ready(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case PLL:
|
||||
while ((RCC_CR & RCC_CR_PLLRDY) == 0);
|
||||
break;
|
||||
case HSE:
|
||||
while ((RCC_CR & RCC_CR_HSERDY) == 0);
|
||||
break;
|
||||
case HSI:
|
||||
while ((RCC_CR & RCC_CR_HSIRDY) == 0);
|
||||
break;
|
||||
case LSE:
|
||||
while ((RCC_BDCR & RCC_BDCR_LSERDY) == 0);
|
||||
break;
|
||||
case LSI:
|
||||
while ((RCC_CSR & RCC_CSR_LSIRDY) == 0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void rcc_wait_for_sysclk_status(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case PLL:
|
||||
while ((RCC_CFGR & ((1 << 1) | (1 << 0))) != RCC_CFGR_SWS_PLL);
|
||||
break;
|
||||
case HSE:
|
||||
while ((RCC_CFGR & ((1 << 1) | (1 << 0))) != RCC_CFGR_SWS_HSE);
|
||||
break;
|
||||
case HSI:
|
||||
while ((RCC_CFGR & ((1 << 1) | (1 << 0))) != RCC_CFGR_SWS_HSI);
|
||||
break;
|
||||
default:
|
||||
/* Shouldn't be reached. */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void rcc_osc_on(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case PLL:
|
||||
RCC_CR |= RCC_CR_PLLON;
|
||||
break;
|
||||
case HSE:
|
||||
RCC_CR |= RCC_CR_HSEON;
|
||||
break;
|
||||
case HSI:
|
||||
RCC_CR |= RCC_CR_HSION;
|
||||
break;
|
||||
case LSE:
|
||||
RCC_BDCR |= RCC_BDCR_LSEON;
|
||||
break;
|
||||
case LSI:
|
||||
RCC_CSR |= RCC_CSR_LSION;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void rcc_osc_off(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case PLL:
|
||||
RCC_CR &= ~RCC_CR_PLLON;
|
||||
break;
|
||||
case HSE:
|
||||
RCC_CR &= ~RCC_CR_HSEON;
|
||||
break;
|
||||
case HSI:
|
||||
RCC_CR &= ~RCC_CR_HSION;
|
||||
break;
|
||||
case LSE:
|
||||
RCC_BDCR &= ~RCC_BDCR_LSEON;
|
||||
break;
|
||||
case LSI:
|
||||
RCC_CSR &= ~RCC_CSR_LSION;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void rcc_css_enable(void)
|
||||
{
|
||||
RCC_CR |= RCC_CR_CSSON;
|
||||
}
|
||||
|
||||
void rcc_css_disable(void)
|
||||
{
|
||||
RCC_CR &= ~RCC_CR_CSSON;
|
||||
}
|
||||
|
||||
void rcc_osc_bypass_enable(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case HSE:
|
||||
RCC_CR |= RCC_CR_HSEBYP;
|
||||
break;
|
||||
case LSE:
|
||||
RCC_BDCR |= RCC_BDCR_LSEBYP;
|
||||
break;
|
||||
case PLL:
|
||||
case HSI:
|
||||
case LSI:
|
||||
/* Do nothing, only HSE/LSE allowed here. */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void rcc_osc_bypass_disable(osc_t osc)
|
||||
{
|
||||
switch (osc) {
|
||||
case HSE:
|
||||
RCC_CR &= ~RCC_CR_HSEBYP;
|
||||
break;
|
||||
case LSE:
|
||||
RCC_BDCR &= ~RCC_BDCR_LSEBYP;
|
||||
break;
|
||||
case PLL:
|
||||
case HSI:
|
||||
case LSI:
|
||||
/* Do nothing, only HSE/LSE allowed here. */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void rcc_peripheral_enable_clock(volatile uint32_t *reg, uint32_t en)
|
||||
{
|
||||
*reg |= en;
|
||||
}
|
||||
|
||||
void rcc_peripheral_disable_clock(volatile uint32_t *reg, uint32_t en)
|
||||
{
|
||||
*reg &= ~en;
|
||||
}
|
||||
|
||||
void rcc_peripheral_reset(volatile uint32_t *reg, uint32_t reset)
|
||||
{
|
||||
*reg |= reset;
|
||||
}
|
||||
|
||||
void rcc_peripheral_clear_reset(volatile uint32_t *reg, uint32_t clear_reset)
|
||||
{
|
||||
*reg &= ~clear_reset;
|
||||
}
|
||||
|
||||
void rcc_set_sysclk_source(uint32_t clk)
|
||||
{
|
||||
uint32_t reg32;
|
||||
|
||||
reg32 = RCC_CFGR;
|
||||
reg32 &= ~((1 << 1) | (1 << 0));
|
||||
RCC_CFGR = (reg32 | clk);
|
||||
}
|
||||
|
||||
void rcc_set_pll_source(uint32_t pllsrc)
|
||||
{
|
||||
uint32_t reg32;
|
||||
|
||||
reg32 = RCC_PLLCFGR;
|
||||
reg32 &= ~(1 << 22);
|
||||
RCC_PLLCFGR = (reg32 | (pllsrc << 22));
|
||||
}
|
||||
|
||||
void rcc_set_ppre2(uint32_t ppre2)
|
||||
{
|
||||
uint32_t reg32;
|
||||
|
||||
reg32 = RCC_CFGR;
|
||||
reg32 &= ~((1 << 13) | (1 << 14) | (1 << 15));
|
||||
RCC_CFGR = (reg32 | (ppre2 << 13));
|
||||
}
|
||||
|
||||
void rcc_set_ppre1(uint32_t ppre1)
|
||||
{
|
||||
uint32_t reg32;
|
||||
|
||||
reg32 = RCC_CFGR;
|
||||
reg32 &= ~((1 << 10) | (1 << 11) | (1 << 12));
|
||||
RCC_CFGR = (reg32 | (ppre1 << 10));
|
||||
}
|
||||
|
||||
void rcc_set_hpre(uint32_t hpre)
|
||||
{
|
||||
uint32_t reg32;
|
||||
|
||||
reg32 = RCC_CFGR;
|
||||
reg32 &= ~((1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
|
||||
RCC_CFGR = (reg32 | (hpre << 4));
|
||||
}
|
||||
|
||||
void rcc_set_rtcpre(uint32_t rtcpre)
|
||||
{
|
||||
uint32_t reg32;
|
||||
|
||||
reg32 = RCC_CFGR;
|
||||
reg32 &= ~((1 << 16) | (1 << 17) | (1 << 18) | (1 << 19) | (1 << 20));
|
||||
RCC_CFGR = (reg32 | (rtcpre << 16));
|
||||
}
|
||||
|
||||
void rcc_set_main_pll_hsi(uint32_t pllm, uint32_t plln, uint32_t pllp,
|
||||
uint32_t pllq)
|
||||
{
|
||||
RCC_PLLCFGR = (pllm << RCC_PLLCFGR_PLLM_SHIFT) |
|
||||
(plln << RCC_PLLCFGR_PLLN_SHIFT) |
|
||||
(((pllp >> 1) - 1) << RCC_PLLCFGR_PLLP_SHIFT) |
|
||||
(pllq << RCC_PLLCFGR_PLLQ_SHIFT);
|
||||
}
|
||||
|
||||
void rcc_set_main_pll_hse(uint32_t pllm, uint32_t plln, uint32_t pllp,
|
||||
uint32_t pllq)
|
||||
{
|
||||
RCC_PLLCFGR = (pllm << RCC_PLLCFGR_PLLM_SHIFT) |
|
||||
(plln << RCC_PLLCFGR_PLLN_SHIFT) |
|
||||
(((pllp >> 1) - 1) << RCC_PLLCFGR_PLLP_SHIFT) |
|
||||
RCC_PLLCFGR_PLLSRC |
|
||||
(pllq << RCC_PLLCFGR_PLLQ_SHIFT);
|
||||
}
|
||||
|
||||
uint32_t rcc_system_clock_source(void)
|
||||
{
|
||||
/* Return the clock source which is used as system clock. */
|
||||
return (RCC_CFGR & 0x000c) >> 2;
|
||||
}
|
||||
|
||||
void rcc_clock_setup_hse_3v3(const clock_scale_t *clock)
|
||||
{
|
||||
/* Enable internal high-speed oscillator. */
|
||||
rcc_osc_on(HSI);
|
||||
rcc_wait_for_osc_ready(HSI);
|
||||
|
||||
/* Select HSI as SYSCLK source. */
|
||||
rcc_set_sysclk_source(RCC_CFGR_SW_HSI);
|
||||
|
||||
/* Enable external high-speed oscillator 8MHz. */
|
||||
rcc_osc_on(HSE);
|
||||
rcc_wait_for_osc_ready(HSE);
|
||||
|
||||
/*
|
||||
* Set prescalers for AHB, ADC, ABP1, ABP2.
|
||||
* Do this before touching the PLL (TODO: why?).
|
||||
*/
|
||||
rcc_set_hpre(clock->hpre);
|
||||
rcc_set_ppre1(clock->ppre1);
|
||||
rcc_set_ppre2(clock->ppre2);
|
||||
|
||||
rcc_set_main_pll_hse(clock->pllm, clock->plln,
|
||||
clock->pllp, clock->pllq);
|
||||
|
||||
/* Enable PLL oscillator and wait for it to stabilize. */
|
||||
rcc_osc_on(PLL);
|
||||
rcc_wait_for_osc_ready(PLL);
|
||||
|
||||
/* Configure flash settings. */
|
||||
flash_set_ws(clock->flash_config);
|
||||
|
||||
/* Select PLL as SYSCLK source. */
|
||||
rcc_set_sysclk_source(RCC_CFGR_SW_PLL);
|
||||
|
||||
/* Wait for PLL clock to be selected. */
|
||||
rcc_wait_for_sysclk_status(PLL);
|
||||
|
||||
/* Set the peripheral clock frequencies used. */
|
||||
rcc_ppre1_frequency = clock->apb1_frequency;
|
||||
rcc_ppre2_frequency = clock->apb2_frequency;
|
||||
}
|
||||
|
||||
void rcc_backupdomain_reset(void)
|
||||
{
|
||||
/* Set the backup domain software reset. */
|
||||
RCC_BDCR |= RCC_BDCR_BDRST;
|
||||
|
||||
/* Clear the backup domain software reset. */
|
||||
RCC_BDCR &= ~RCC_BDCR_BDRST;
|
||||
}
|
@ -0,0 +1,32 @@
|
||||
/** @defgroup rtc_file RTC
|
||||
*
|
||||
* @ingroup STM32F2xx
|
||||
*
|
||||
* @brief <b>libopencm3 STM32F2xx RTC</b>
|
||||
*
|
||||
* @version 1.0.0
|
||||
*
|
||||
* @date 4 March 2013
|
||||
*
|
||||
* LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/rtc.h>
|
||||
#include <libopencm3/stm32/common/rtc_common_l1f024.h>
|
@ -0,0 +1,33 @@
|
||||
/** @defgroup spi_file SPI
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx SPI</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 15 October 2012
|
||||
|
||||
LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/spi.h>
|
||||
#include <libopencm3/stm32/common/spi_common_f24.h>
|
||||
|
@ -0,0 +1,40 @@
|
||||
/* This file is used for documentation purposes. It does not need
|
||||
to be compiled. All source code is in the common area.
|
||||
If there is any device specific code required it can be included here,
|
||||
in which case this file must be added to the compile list. */
|
||||
|
||||
/** @defgroup timer_file Timers
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx Timers</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 18 August 2012
|
||||
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* Copyright (C) 2010 Edward Cheeseman <evbuilder@users.sourceforge.org>
|
||||
* 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/>.
|
||||
*/
|
||||
|
||||
#include <libopencm3/stm32/timer.h>
|
||||
#include <libopencm3/stm32/common/timer_common_f24.h>
|
||||
|
@ -0,0 +1,33 @@
|
||||
/** @defgroup usart_file USART
|
||||
|
||||
@ingroup STM32F2xx
|
||||
|
||||
@brief <b>libopencm3 STM32F2xx USART</b>
|
||||
|
||||
@version 1.0.0
|
||||
|
||||
@date 30 August 2012
|
||||
|
||||
LGPL License Terms @ref lgpl_license
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* 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/usart.h>
|
||||
#include <libopencm3/stm32/common/usart_common_all.h>
|
||||
|
Reference in New Issue
Block a user