Nordic stack and drivers for the mbed BLE API
Fork of nRF51822 by
Diff: TARGET_MCU_NRF51822/sdk/source/drivers_nrf/hal/nrf_nvmc.c
- Revision:
- 638:c90ae1400bf2
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_MCU_NRF51822/sdk/source/drivers_nrf/hal/nrf_nvmc.c Wed Sep 14 14:39:43 2016 +0100 @@ -0,0 +1,136 @@ +/* + * 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) + { + } +} +