Nordic stack and drivers for the mbed BLE API
Fork of nRF51822 by
TARGET_MCU_NRF51822/sdk/source/drivers_nrf/hal/nrf_nvmc.c
- Committer:
- Vincent Coubard
- Date:
- 2016-09-14
- Revision:
- 640:c90ae1400bf2
File content as of revision 640:c90ae1400bf2:
/* * Copyright (c) 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 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 other * contributors to this software may be used to endorse or promote products * derived from this software without specific prior written permission. * * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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) { } }