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git subrepo clone https://github.com/libopencm3/libopencm3.git

Browse Source 
subrepo:
  subdir:   "libopencm3"
  merged:   "88e91c9a7cce"
upstream:
  origin:   "https://github.com/libopencm3/libopencm3.git"
  branch:   "master"
  commit:   "88e91c9a7cce"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"
This commit is contained in:
Arti Zirk
2023-01-21 21:54:42 +02:00
parent f01f2a30fa
commit 054740c5de
1205 changed files with 191912 additions and 0 deletions
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50
libopencm3/lib/nrf/52/Makefile Normal file
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##
## This file is part of the libopencm3 project.
##
## Copyright (C) 2017-2018 Unicore MX project<dev(at)lists(dot)unicore-mx(dot)org>
## Copyright (C) 2021 Eduard Drusa <ventyl86(at)netkosice(dot)sk>
##
## 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_nrf52
SRCLIBDIR ?= ../..
CC = $(PREFIX)gcc
AR = $(PREFIX)ar
FP_FLAGS ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
TGT_CFLAGS = -Os -Wall -Wextra -I../../../include -fno-common \
-mcpu=cortex-m4 -mthumb $(FP_FLAGS) \
-Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \
-ffunction-sections -fdata-sections -MD -DNRF52
TGT_CFLAGS += $(DEBUG_FLAGS)
TGT_CFLAGS += $(STANDARD_FLAGS)
# ARFLAGS = rcsv
ARFLAGS = rcs
OBJS += clock_common.o
OBJS += gpio.o
OBJS += i2c.o i2c_common.o
OBJS += ppi.o
OBJS += radio_common.o
OBJS += rtc.o
OBJS += timer.o
OBJS += uart.o
VPATH += ../../cm3:../common
include ../../Makefile.include

62
libopencm3/lib/nrf/52/i2c.c Normal file
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/** @addtogroup i2c_file I2C peripheral API
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2022 Eduard Drusa <ventyl86(at)netkosice(dot)sk>
*
* 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/nrf/52/i2c.h>
/**@{*/
/** Configure I2C transmit buffer properties
*
* Configures transmit buffer for EasyDMA transaction. This API
* is only available if @ref I2C_MODE_MASTER mode is activated.
*
* Configures linear TX buffer for EasyDMA transmission.
* @param[in] i2c i2c peripheral base, see @ref i2c_block
* @param[in] buffer address of buffer start
* @param[in] len length of data in the buffer
*/
void i2c_set_tx_buffer(uint32_t i2c, const uint8_t *buffer, uint8_t len)
{
I2C_TXDPTR(i2c) = (uint32_t) buffer;
I2C_TXDMAXCNT(i2c) = len;
I2C_TXDLIST(i2c) = 0;
}
/** Configure I2C receive buffer properties
*
* Configures receive buffer for EasyDMA transaction. This API
* is only available if @ref I2C_MODE_MASTER mode is activated.
*
* Configures linear RX buffer for EasyDMA transmission.
* @param[in] i2c i2c peripheral base, see @ref i2c_block
* @param[in] buffer address of buffer start
* @param[in] len length of the buffer
*/
void i2c_set_rx_buffer(uint32_t i2c, uint8_t *buffer, uint8_t len)
{
I2C_RXDPTR(i2c) = (uint32_t) buffer;
I2C_RXDMAXCNT(i2c) = len;
I2C_RXDLIST(i2c) = 0;
}
/** @} */