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/**
* Copyright (c) 2012 - 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
*@file
*@brief NMVC driver implementation
*/
#include <stdbool.h>
#include "nrf.h"
#include "nrf_nvmc.h"
void nrf_nvmc_page_erase(uint32_t address)
{
// Enable erase.
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Een;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
// Erase the page
NRF_NVMC->ERASEPAGE = address;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
}
void nrf_nvmc_write_byte(uint32_t address, uint8_t value)
{
uint32_t byte_shift = address & (uint32_t)0x03;
uint32_t address32 = address & ~byte_shift; // Address to the word this byte is in.
uint32_t value32 = (*(uint32_t*)address32 & ~((uint32_t)0xFF << (byte_shift << (uint32_t)3)));
value32 = value32 + ((uint32_t)value << (byte_shift << 3));
// Enable write.
NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
*(uint32_t*)address32 = value32;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos);
{
}
}
void nrf_nvmc_write_word(uint32_t address, uint32_t value)
{
// Enable write.
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){
}
*(uint32_t*)address = value;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy){
}
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
}
void nrf_nvmc_write_bytes(uint32_t address, const uint8_t * src, uint32_t num_bytes)
{
uint32_t i;
for (i=0;i<num_bytes;i++)
{
nrf_nvmc_write_byte(address + i,src[i]);
}
}
void nrf_nvmc_write_words(uint32_t address, const uint32_t * src, uint32_t num_words)
{
uint32_t i;
// Enable write.
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
for (i=0;i<num_words;i++)
{
((uint32_t*)address)[i] = src[i];
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
}
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy)
{
}
}
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