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author | Trygve Laugstøl <trygvis@inamo.no> | 2018-08-23 17:08:59 +0200 |
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committer | Trygve Laugstøl <trygvis@inamo.no> | 2018-08-23 17:12:21 +0200 |
commit | 3061ecca3d0fdfb87dabbf5f63c9e06c2a30f53a (patch) | |
tree | ab49cc16ed0b853452c5c2ed2d3042416d628986 /thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_nvmc.c | |
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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_nvmc.c')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_nvmc.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_nvmc.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_nvmc.c new file mode 100644 index 0000000..99fc64f --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/hal/nrf_nvmc.c @@ -0,0 +1,133 @@ +/** + * Copyright (c) 2012 - 2018, 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 <nrfx.h> +#include "nrf_nvmc.h" + +static inline void wait_for_flash_ready(void) +{ + while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {;} +} + +void nrf_nvmc_page_erase(uint32_t address) +{ + // Enable erase. + NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Een; + __ISB(); + __DSB(); + + // Erase the page + NRF_NVMC->ERASEPAGE = address; + wait_for_flash_ready(); + + NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren; + __ISB(); + __DSB(); +} + + +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); + __ISB(); + __DSB(); + + *(uint32_t*)address32 = value32; + wait_for_flash_ready(); + + NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos); + __ISB(); + __DSB(); +} + +void nrf_nvmc_write_word(uint32_t address, uint32_t value) +{ + // Enable write. + NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen; + __ISB(); + __DSB(); + + *(uint32_t*)address = value; + wait_for_flash_ready(); + + NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren; + __ISB(); + __DSB(); +} + +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; + __ISB(); + __DSB(); + + for (i = 0; i < num_words; i++) + { + ((uint32_t*)address)[i] = src[i]; + wait_for_flash_ready(); + } + + NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren; + __ISB(); + __DSB(); +} + |